From bf3e7655d1cd3e3255d7c673043a908fff4442f7 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Wed, 14 Jan 2026 13:41:29 -0800 Subject: [PATCH 01/44] Pinned server-everything, fixed all tests to work with current pinned version, fixed problem with undetected failures (isError: true payloads). --- .github/workflows/cli_tests.yml | 2 +- cli/package.json | 5 +-- cli/scripts/cli-metadata-tests.js | 10 +++--- cli/scripts/cli-tests.js | 35 +++++++++----------- cli/scripts/cli-tool-tests.js | 55 +++++++++++++++++++++++-------- 5 files changed, 66 insertions(+), 41 deletions(-) diff --git a/.github/workflows/cli_tests.yml b/.github/workflows/cli_tests.yml index 8bd3bb8ec..3a5f502bb 100644 --- a/.github/workflows/cli_tests.yml +++ b/.github/workflows/cli_tests.yml @@ -32,7 +32,7 @@ jobs: run: npm run build - name: Explicitly pre-install test dependencies - run: npx -y @modelcontextprotocol/server-everything --help || true + run: npx -y @modelcontextprotocol/server-everything@2026.1.14 --help || true - name: Run tests run: npm test diff --git a/cli/package.json b/cli/package.json index 6551c80aa..1cb2b662c 100644 --- a/cli/package.json +++ b/cli/package.json @@ -17,10 +17,11 @@ "scripts": { "build": "tsc", "postbuild": "node scripts/make-executable.js", - "test": "node scripts/cli-tests.js && node scripts/cli-tool-tests.js && node scripts/cli-header-tests.js", + "test": "node scripts/cli-tests.js && node scripts/cli-tool-tests.js && node scripts/cli-header-tests.js && node scripts/cli-metadata-tests.js", "test:cli": "node scripts/cli-tests.js", "test:cli-tools": "node scripts/cli-tool-tests.js", - "test:cli-headers": "node scripts/cli-header-tests.js" + "test:cli-headers": "node scripts/cli-header-tests.js", + "test:cli-metadata": "node scripts/cli-metadata-tests.js" }, "devDependencies": {}, "dependencies": { diff --git a/cli/scripts/cli-metadata-tests.js b/cli/scripts/cli-metadata-tests.js index 0bc664d2c..eaddc3577 100755 --- a/cli/scripts/cli-metadata-tests.js +++ b/cli/scripts/cli-metadata-tests.js @@ -56,7 +56,7 @@ const BUILD_DIR = path.resolve(SCRIPTS_DIR, "../build"); // Define the test server command using npx const TEST_CMD = "npx"; -const TEST_ARGS = ["@modelcontextprotocol/server-everything"]; +const TEST_ARGS = ["@modelcontextprotocol/server-everything@2026.1.14"]; // Create output directory for test results const OUTPUT_DIR = path.join(SCRIPTS_DIR, "metadata-test-output"); @@ -335,7 +335,7 @@ async function runTests() { "--method", "resources/read", "--uri", - "test://static/resource/1", + "demo://resource/static/document/architecture.md", "--metadata", "client=test-client", ); @@ -349,7 +349,7 @@ async function runTests() { "--method", "prompts/get", "--prompt-name", - "simple_prompt", + "simple-prompt", "--metadata", "client=test-client", ); @@ -383,7 +383,7 @@ async function runTests() { "--method", "tools/call", "--tool-name", - "add", + "get-sum", "--tool-arg", "a=10", "b=20", @@ -566,7 +566,7 @@ async function runTests() { "--method", "prompts/get", "--prompt-name", - "simple_prompt", + "simple-prompt", "--metadata", "prompt_client=test-prompt-client", ); diff --git a/cli/scripts/cli-tests.js b/cli/scripts/cli-tests.js index 554a5262e..38f57bb24 100755 --- a/cli/scripts/cli-tests.js +++ b/cli/scripts/cli-tests.js @@ -56,8 +56,9 @@ const PROJECT_ROOT = path.join(SCRIPTS_DIR, "../../"); const BUILD_DIR = path.resolve(SCRIPTS_DIR, "../build"); // Define the test server command using npx +const EVERYTHING_SERVER = "@modelcontextprotocol/server-everything@2026.1.14"; const TEST_CMD = "npx"; -const TEST_ARGS = ["@modelcontextprotocol/server-everything"]; +const TEST_ARGS = [EVERYTHING_SERVER]; // Create output directory for test results const OUTPUT_DIR = path.join(SCRIPTS_DIR, "test-output"); @@ -163,7 +164,7 @@ fs.writeFileSync( "test-stdio": { type: "stdio", command: "npx", - args: ["@modelcontextprotocol/server-everything"], + args: [EVERYTHING_SERVER], env: { TEST_ENV: "test-value", }, @@ -184,7 +185,7 @@ fs.writeFileSync( mcpServers: { "test-legacy": { command: "npx", - args: ["@modelcontextprotocol/server-everything"], + args: [EVERYTHING_SERVER], env: { LEGACY_ENV: "legacy-value", }, @@ -543,7 +544,7 @@ async function runTests() { "--method", "resources/read", "--uri", - "test://static/resource/1", + "demo://resource/static/document/architecture.md", ); // Test 17: CLI mode with resource read but missing URI (should fail) @@ -569,7 +570,7 @@ async function runTests() { "--method", "prompts/get", "--prompt-name", - "simple_prompt", + "simple-prompt", ); // Test 19: CLI mode with prompt get and args @@ -581,10 +582,10 @@ async function runTests() { "--method", "prompts/get", "--prompt-name", - "complex_prompt", + "args-prompt", "--prompt-args", - "temperature=0.7", - "style=concise", + "city=New York", + "state=NY", ); // Test 20: CLI mode with prompt get but missing prompt name (should fail) @@ -734,7 +735,7 @@ async function runTests() { mcpServers: { "only-server": { command: "npx", - args: ["@modelcontextprotocol/server-everything"], + args: [EVERYTHING_SERVER], }, }, }, @@ -755,7 +756,7 @@ async function runTests() { mcpServers: { "default-server": { command: "npx", - args: ["@modelcontextprotocol/server-everything"], + args: [EVERYTHING_SERVER], }, "other-server": { command: "node", @@ -777,7 +778,7 @@ async function runTests() { mcpServers: { server1: { command: "npx", - args: ["@modelcontextprotocol/server-everything"], + args: [EVERYTHING_SERVER], }, server2: { command: "node", @@ -827,14 +828,10 @@ async function runTests() { console.log( `${colors.BLUE}Starting server-everything in streamableHttp mode.${colors.NC}`, ); - const httpServer = spawn( - "npx", - ["@modelcontextprotocol/server-everything", "streamableHttp"], - { - detached: true, - stdio: "ignore", - }, - ); + const httpServer = spawn("npx", [EVERYTHING_SERVER, "streamableHttp"], { + detached: true, + stdio: "ignore", + }); runningServers.push(httpServer); await new Promise((resolve) => setTimeout(resolve, 3000)); diff --git a/cli/scripts/cli-tool-tests.js b/cli/scripts/cli-tool-tests.js index b06aea940..30b5a2e2f 100644 --- a/cli/scripts/cli-tool-tests.js +++ b/cli/scripts/cli-tool-tests.js @@ -50,7 +50,7 @@ const BUILD_DIR = path.resolve(SCRIPTS_DIR, "../build"); // Define the test server command using npx const TEST_CMD = "npx"; -const TEST_ARGS = ["@modelcontextprotocol/server-everything"]; +const TEST_ARGS = ["@modelcontextprotocol/server-everything@2026.1.14"]; // Create output directory for test results const OUTPUT_DIR = path.join(SCRIPTS_DIR, "tool-test-output"); @@ -137,7 +137,21 @@ async function runBasicTest(testName, ...args) { clearTimeout(timeout); outputStream.end(); + // Check for JSON errors even if exit code is 0 + let hasJsonError = false; if (code === 0) { + try { + const jsonMatch = output.match(/\{[\s\S]*\}/); + if (jsonMatch) { + const parsed = JSON.parse(jsonMatch[0]); + hasJsonError = parsed.isError === true; + } + } catch (e) { + // Not valid JSON or parse failed, continue with original check + } + } + + if (code === 0 && !hasJsonError) { console.log(`${colors.GREEN}✓ Test passed: ${testName}${colors.NC}`); console.log(`${colors.BLUE}First few lines of output:${colors.NC}`); const firstFewLines = output @@ -225,8 +239,22 @@ async function runErrorTest(testName, ...args) { clearTimeout(timeout); outputStream.end(); - // For error tests, we expect a non-zero exit code - if (code !== 0) { + // For error tests, we expect a non-zero exit code OR JSON with isError: true + let hasJsonError = false; + if (code === 0) { + // Try to parse JSON and check for isError field + try { + const jsonMatch = output.match(/\{[\s\S]*\}/); + if (jsonMatch) { + const parsed = JSON.parse(jsonMatch[0]); + hasJsonError = parsed.isError === true; + } + } catch (e) { + // Not valid JSON or parse failed, continue with original check + } + } + + if (code !== 0 || hasJsonError) { console.log( `${colors.GREEN}✓ Error test passed: ${testName}${colors.NC}`, ); @@ -312,7 +340,7 @@ async function runTests() { "--method", "tools/call", "--tool-name", - "add", + "get-sum", "--tool-arg", "a=42", "b=58", @@ -327,7 +355,7 @@ async function runTests() { "--method", "tools/call", "--tool-name", - "add", + "get-sum", "--tool-arg", "a=19.99", "b=20.01", @@ -342,7 +370,7 @@ async function runTests() { "--method", "tools/call", "--tool-name", - "annotatedMessage", + "get-annotated-message", "--tool-arg", "messageType=success", "includeImage=true", @@ -357,7 +385,7 @@ async function runTests() { "--method", "tools/call", "--tool-name", - "annotatedMessage", + "get-annotated-message", "--tool-arg", "messageType=error", "includeImage=false", @@ -386,7 +414,7 @@ async function runTests() { "--method", "tools/call", "--tool-name", - "add", + "get-sum", "--tool-arg", "a=42.5", "b=57.5", @@ -537,11 +565,10 @@ async function runTests() { "--method", "prompts/get", "--prompt-name", - "complex_prompt", + "args-prompt", "--prompt-args", - "temperature=0.7", - 'style="concise"', - 'options={"format":"json","max_tokens":100}', + "city=New York", + "state=NY", ); // Test 25: Prompt with simple arguments @@ -553,7 +580,7 @@ async function runTests() { "--method", "prompts/get", "--prompt-name", - "simple_prompt", + "simple-prompt", "--prompt-args", "name=test", "count=5", @@ -586,7 +613,7 @@ async function runTests() { "--method", "tools/call", "--tool-name", - "add", + "get-sum", "--tool-arg", "a=10", "b=20", From 5eec8093c9dbd9d715baef50ea5a276d6b722060 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Wed, 14 Jan 2026 16:45:29 -0800 Subject: [PATCH 02/44] First working vitest implementation --- cli/VITEST_MIGRATION_PLAN.md | 514 +++++++++++++++ cli/__tests__/README.md | 45 ++ cli/__tests__/cli.test.ts | 575 +++++++++++++++++ cli/__tests__/headers.test.ts | 127 ++++ cli/__tests__/helpers/assertions.ts | 66 ++ cli/__tests__/helpers/cli-runner.ts | 94 +++ cli/__tests__/helpers/fixtures.ts | 184 ++++++ cli/__tests__/helpers/test-server.ts | 97 +++ cli/__tests__/metadata.test.ts | 403 ++++++++++++ cli/__tests__/tools.test.ts | 367 +++++++++++ cli/package.json | 15 +- cli/scripts/cli-header-tests.js | 252 -------- cli/scripts/cli-metadata-tests.js | 676 ------------------- cli/scripts/cli-tests.js | 932 --------------------------- cli/scripts/cli-tool-tests.js | 641 ------------------ cli/vitest.config.ts | 10 + package-lock.json | 405 +++++++++++- 17 files changed, 2891 insertions(+), 2512 deletions(-) create mode 100644 cli/VITEST_MIGRATION_PLAN.md create mode 100644 cli/__tests__/README.md create mode 100644 cli/__tests__/cli.test.ts create mode 100644 cli/__tests__/headers.test.ts create mode 100644 cli/__tests__/helpers/assertions.ts create mode 100644 cli/__tests__/helpers/cli-runner.ts create mode 100644 cli/__tests__/helpers/fixtures.ts create mode 100644 cli/__tests__/helpers/test-server.ts create mode 100644 cli/__tests__/metadata.test.ts create mode 100644 cli/__tests__/tools.test.ts delete mode 100644 cli/scripts/cli-header-tests.js delete mode 100755 cli/scripts/cli-metadata-tests.js delete mode 100755 cli/scripts/cli-tests.js delete mode 100644 cli/scripts/cli-tool-tests.js create mode 100644 cli/vitest.config.ts diff --git a/cli/VITEST_MIGRATION_PLAN.md b/cli/VITEST_MIGRATION_PLAN.md new file mode 100644 index 000000000..eaa0e09c5 --- /dev/null +++ b/cli/VITEST_MIGRATION_PLAN.md @@ -0,0 +1,514 @@ +# CLI Tests Migration to Vitest - Plan & As-Built + +## Overview + +This document outlines the plan to migrate the CLI test suite from custom scripting approach to Vitest, following the patterns established in the `servers` project. + +**Status: ✅ MIGRATION COMPLETE** (with remaining cleanup tasks) + +### Summary + +- ✅ **All 85 tests migrated and passing** (35 CLI + 21 Tools + 7 Headers + 22 Metadata) +- ✅ **Test infrastructure complete** (helpers, fixtures, server management) +- ✅ **Parallel execution working** (fixed isolation issues) +- ❌ **Cleanup pending**: Remove old test files, update docs, verify CI/CD + +## Current State + +### Test Files + +- `cli/scripts/cli-tests.js` - Basic CLI functionality tests (933 lines) +- `cli/scripts/cli-tool-tests.js` - Tool-related tests (642 lines) +- `cli/scripts/cli-header-tests.js` - Header parsing tests (253 lines) +- `cli/scripts/cli-metadata-tests.js` - Metadata functionality tests (677 lines) + +### Current Approach + +- Custom test runner using Node.js `spawn` to execute CLI as subprocess +- Manual test result tracking (PASSED_TESTS, FAILED_TESTS counters) +- Custom colored console output +- Output logging to files in `test-output/`, `tool-test-output/`, `metadata-test-output/` +- Tests check exit codes and output content +- Some tests spawn external MCP servers (e.g., `@modelcontextprotocol/server-everything`) + +### Test Categories + +1. **Basic CLI Tests** (`cli-tests.js`): + - CLI mode validation + - Environment variables + - Config file handling + - Server selection + - Resource and prompt options + - Logging options + - Transport types (http/sse/stdio) + - ~37 test cases + +2. **Tool Tests** (`cli-tool-tests.js`): + - Tool discovery and listing + - JSON argument parsing (strings, numbers, booleans, null, objects, arrays) + - Tool schema validation + - Tool execution with various argument types + - Error handling + - Prompt JSON arguments + - Backward compatibility + - ~27 test cases + +3. **Header Tests** (`cli-header-tests.js`): + - Header parsing and validation + - Multiple headers + - Invalid header formats + - Special characters in headers + - ~7 test cases + +4. **Metadata Tests** (`cli-metadata-tests.js`): + - General metadata with `--metadata` + - Tool-specific metadata with `--tool-metadata` + - Metadata parsing (numbers, JSON, special chars) + - Metadata merging (tool-specific overrides general) + - Metadata validation + - ~23 test cases + +## Target State (Based on Servers Project) + +### Vitest Configuration ✅ COMPLETED + +- `vitest.config.ts` in `cli/` directory +- Standard vitest config with: + - `globals: true` (for `describe`, `it`, `expect` without imports) + - `environment: 'node'` + - Test files in `__tests__/` directory with `.test.ts` extension + - `testTimeout: 15000` (15 seconds for subprocess tests) + - **Note**: Coverage was initially configured but removed as integration tests spawn subprocesses, making coverage tracking ineffective + +### Test Structure + +- Tests organized in `cli/__tests__/` directory +- Test files mirror source structure or group by functionality +- Use TypeScript (`.test.ts` files) +- Standard vitest patterns: `describe`, `it`, `expect`, `beforeEach`, `afterEach` +- Use `vi` for mocking when needed + +### Package.json Updates ✅ COMPLETED + +- Added `vitest` and `@vitest/coverage-v8` to `devDependencies` +- Updated test script: `"test": "vitest run"` (coverage removed - see note above) +- Added `"test:watch": "vitest"` for development +- Added individual test file scripts: `test:cli`, `test:cli-tools`, `test:cli-headers`, `test:cli-metadata` +- Kept old test scripts as `test:old` for comparison + +## Migration Strategy + +### Phase 1: Setup and Infrastructure + +1. **Install Dependencies** + + ```bash + cd cli + npm install --save-dev vitest @vitest/coverage-v8 + ``` + +2. **Create Vitest Configuration** + - Create `cli/vitest.config.ts` following servers project pattern + - Configure test file patterns: `**/__tests__/**/*.test.ts` + - Set up coverage includes/excludes + - Configure for Node.js environment + +3. **Create Test Directory Structure** + + ``` + cli/ + ├── __tests__/ + │ ├── cli.test.ts # Basic CLI tests + │ ├── tools.test.ts # Tool-related tests + │ ├── headers.test.ts # Header parsing tests + │ └── metadata.test.ts # Metadata tests + ``` + +4. **Update package.json** + - Add vitest scripts + - Keep old test scripts temporarily for comparison + +### Phase 2: Test Helper Utilities + +Create shared test utilities in `cli/__tests__/helpers/`: + +**Note on Helper Location**: The servers project doesn't use a `helpers/` subdirectory. Their tests are primarily unit tests that mock dependencies. The one integration test (`structured-content.test.ts`) that spawns a server handles lifecycle directly in the test file using vitest hooks (`beforeEach`/`afterEach`) and uses the MCP SDK's `StdioClientTransport` rather than raw process spawning. + +However, our CLI tests are different: + +- **Integration tests** that test the CLI itself (which spawns processes) +- Need to test **multiple transport types** (stdio, HTTP, SSE) - not just stdio +- Need to manage **external test servers** (like `@modelcontextprotocol/server-everything`) +- **Shared utilities** across 4 test files to avoid code duplication + +The `__tests__/helpers/` pattern is common in Jest/Vitest projects for shared test utilities. Alternative locations: + +- `cli/test-helpers/` - Sibling to `__tests__`, but less discoverable +- Inline in test files - Would lead to significant code duplication across 4 files +- `cli/src/test-utils/` - Mixes test code with source code + +Given our needs, `__tests__/helpers/` is the most appropriate location. + +1. **CLI Runner Utility** (`cli-runner.ts`) ✅ COMPLETED + - Function to spawn CLI process with arguments + - Capture stdout, stderr, and exit code + - Handle timeouts (default 12s, less than Vitest's 15s timeout) + - Robust process termination (handles process groups on Unix) + - Return structured result object + - **As-built**: Uses `crypto.randomUUID()` for unique temp directories to prevent collisions in parallel execution + +2. **Test Server Management** (`test-server.ts`) ✅ COMPLETED + - Utilities to start/stop test MCP servers + - Server lifecycle management + - **As-built**: Dynamic port allocation using `findAvailablePort()` to prevent conflicts in parallel execution + - **As-built**: Returns `{ process, port }` object so tests can use the actual allocated port + - **As-built**: Uses `PORT` environment variable to configure server ports + +3. **Assertion Helpers** (`assertions.ts`) ✅ COMPLETED + - Custom matchers for CLI output validation + - JSON output parsing helpers (parses `stdout` to avoid Node.js warnings on `stderr`) + - Error message validation helpers + - **As-built**: `expectCliSuccess`, `expectCliFailure`, `expectOutputContains`, `expectValidJson`, `expectJsonError`, `expectJsonStructure` + +4. **Test Fixtures** (`fixtures.ts`) ✅ COMPLETED + - Test config files (stdio, SSE, HTTP, legacy, single-server, multi-server, default-server) + - Temporary directory management using `crypto.randomUUID()` for uniqueness + - Sample data generators + - **As-built**: All config creation functions implemented + +### Phase 3: Test Migration + +Migrate tests file by file, maintaining test coverage: + +#### 3.1 Basic CLI Tests (`cli.test.ts`) ✅ COMPLETED + +- Converted `runBasicTest` → `it('should ...', async () => { ... })` +- Converted `runErrorTest` → `it('should fail when ...', async () => { ... })` +- Grouped related tests in `describe` blocks: + - `describe('Basic CLI Mode', ...)` - 3 tests + - `describe('Environment Variables', ...)` - 5 tests + - `describe('Config File', ...)` - 6 tests + - `describe('Resource Options', ...)` - 2 tests + - `describe('Prompt Options', ...)` - 3 tests + - `describe('Logging Options', ...)` - 2 tests + - `describe('Config Transport Types', ...)` - 3 tests + - `describe('Default Server Selection', ...)` - 3 tests + - `describe('HTTP Transport', ...)` - 6 tests +- **Total: 35 tests** (matches original count) +- **As-built**: Added `--cli` flag to all CLI invocations to prevent web browser from opening +- **As-built**: Dynamic port handling for HTTP transport tests + +#### 3.2 Tool Tests (`tools.test.ts`) ✅ COMPLETED + +- Grouped by functionality: + - `describe('Tool Discovery', ...)` - 1 test + - `describe('JSON Argument Parsing', ...)` - 13 tests + - `describe('Error Handling', ...)` - 3 tests + - `describe('Prompt JSON Arguments', ...)` - 2 tests + - `describe('Backward Compatibility', ...)` - 2 tests +- **Total: 21 tests** (matches original count) +- **As-built**: Uses `expectJsonError` for error cases (CLI returns exit code 0 but indicates errors via JSON) + +#### 3.3 Header Tests (`headers.test.ts`) ✅ COMPLETED + +- Two `describe` blocks: + - `describe('Valid Headers', ...)` - 4 tests + - `describe('Invalid Header Formats', ...)` - 3 tests +- **Total: 7 tests** (matches original count) +- **As-built**: Removed unnecessary timeout overrides (default 12s is sufficient) + +#### 3.4 Metadata Tests (`metadata.test.ts`) ✅ COMPLETED + +- Grouped by functionality: + - `describe('General Metadata', ...)` - 3 tests + - `describe('Tool-Specific Metadata', ...)` - 3 tests + - `describe('Metadata Parsing', ...)` - 4 tests + - `describe('Metadata Merging', ...)` - 2 tests + - `describe('Metadata Validation', ...)` - 3 tests + - `describe('Metadata Integration', ...)` - 4 tests + - `describe('Metadata Impact', ...)` - 3 tests +- **Total: 22 tests** (matches original count) + +### Phase 4: Test Improvements ✅ COMPLETED + +1. **Better Assertions** ✅ + - Using vitest's rich assertion library + - Custom assertion helpers for CLI-specific checks (`expectCliSuccess`, `expectCliFailure`, etc.) + - Improved error messages + +2. **Test Isolation** ✅ + - Tests properly isolated using unique config files (via `crypto.randomUUID()`) + - Proper cleanup of temporary files and processes + - Using `beforeAll`/`afterAll` for config file setup/teardown + - **As-built**: Fixed race conditions in config file creation that caused test failures in parallel execution + +3. **Parallel Execution** ✅ + - Tests run in parallel by default (Vitest default behavior) + - **As-built**: Fixed port conflicts by implementing dynamic port allocation + - **As-built**: Fixed config file collisions by using `crypto.randomUUID()` instead of `Date.now()` + - **As-built**: Tests can run in parallel across files (Vitest runs files in parallel, tests within files sequentially) + +4. **Coverage** ⚠️ PARTIALLY COMPLETED + - Coverage configuration initially added but removed + - **Reason**: Integration tests spawn CLI as subprocess, so Vitest can't track coverage (coverage only tracks code in the test process) + - This is expected behavior for integration tests + +### Phase 5: Cleanup ⚠️ PENDING + +1. **Remove Old Test Files** ❌ NOT DONE + - `cli/scripts/cli-tests.js` - Still exists (kept as `test:old` script) + - `cli/scripts/cli-tool-tests.js` - Still exists + - `cli/scripts/cli-header-tests.js` - Still exists + - `cli/scripts/cli-metadata-tests.js` - Still exists + - **Recommendation**: Remove after verifying new tests work in CI/CD + +2. **Update Documentation** ❌ NOT DONE + - README not updated with new test commands + - Test structure not documented + - **Recommendation**: Add section to README about running tests + +3. **CI/CD Updates** ❌ NOT DONE + - CI scripts may still reference old test files + - **Recommendation**: Verify and update CI/CD workflows + +## Implementation Details + +### CLI Runner Helper + +```typescript +// cli/__tests__/helpers/cli-runner.ts +import { spawn } from "child_process"; +import { resolve } from "path"; +import { fileURLToPath } from "url"; +import { dirname } from "path"; + +const __dirname = dirname(fileURLToPath(import.meta.url)); +const CLI_PATH = resolve(__dirname, "../../build/cli.js"); + +export interface CliResult { + exitCode: number | null; + stdout: string; + stderr: string; + output: string; // Combined stdout + stderr +} + +export async function runCli( + args: string[], + options: { timeout?: number } = {}, +): Promise { + return new Promise((resolve, reject) => { + const child = spawn("node", [CLI_PATH, ...args], { + stdio: ["pipe", "pipe", "pipe"], + }); + + let stdout = ""; + let stderr = ""; + + const timeout = options.timeout + ? setTimeout(() => { + child.kill(); + reject(new Error(`CLI command timed out after ${options.timeout}ms`)); + }, options.timeout) + : null; + + child.stdout.on("data", (data) => { + stdout += data.toString(); + }); + + child.stderr.on("data", (data) => { + stderr += data.toString(); + }); + + child.on("close", (code) => { + if (timeout) clearTimeout(timeout); + resolve({ + exitCode: code, + stdout, + stderr, + output: stdout + stderr, + }); + }); + + child.on("error", (error) => { + if (timeout) clearTimeout(timeout); + reject(error); + }); + }); +} +``` + +### Test Example Structure + +```typescript +// cli/__tests__/cli.test.ts +import { describe, it, expect, beforeEach, afterEach } from "vitest"; +import { runCli } from "./helpers/cli-runner.js"; +import { TEST_SERVER } from "./helpers/test-server.js"; + +describe("Basic CLI Mode", () => { + it("should execute tools/list successfully", async () => { + const result = await runCli([ + "npx", + "@modelcontextprotocol/server-everything@2026.1.14", + "--cli", + "--method", + "tools/list", + ]); + + expect(result.exitCode).toBe(0); + expect(result.output).toContain('"tools"'); + }); + + it("should fail with nonexistent method", async () => { + const result = await runCli([ + "npx", + "@modelcontextprotocol/server-everything@2026.1.14", + "--cli", + "--method", + "nonexistent/method", + ]); + + expect(result.exitCode).not.toBe(0); + }); +}); +``` + +### Test Server Helper + +```typescript +// cli/__tests__/helpers/test-server.ts +import { spawn, ChildProcess } from "child_process"; + +export const TEST_SERVER = "@modelcontextprotocol/server-everything@2026.1.14"; + +export class TestServerManager { + private servers: ChildProcess[] = []; + + async startHttpServer(port: number = 3001): Promise { + const server = spawn("npx", [TEST_SERVER, "streamableHttp"], { + detached: true, + stdio: "ignore", + }); + + this.servers.push(server); + + // Wait for server to start + await new Promise((resolve) => setTimeout(resolve, 3000)); + + return server; + } + + cleanup() { + this.servers.forEach((server) => { + try { + process.kill(-server.pid!); + } catch (e) { + // Server may already be dead + } + }); + this.servers = []; + } +} +``` + +## File Structure After Migration + +``` +cli/ +├── __tests__/ +│ ├── cli.test.ts +│ ├── tools.test.ts +│ ├── headers.test.ts +│ ├── metadata.test.ts +│ └── helpers/ +│ ├── cli-runner.ts +│ ├── test-server.ts +│ ├── assertions.ts +│ └── fixtures.ts +├── vitest.config.ts +├── package.json (updated) +└── scripts/ + └── make-executable.js (keep) +``` + +## Benefits of Migration + +1. **Standard Testing Framework**: Use industry-standard vitest instead of custom scripts +2. **Better Developer Experience**: + - Watch mode for development + - Better error messages + - IDE integration +3. **Improved Assertions**: Rich assertion library with better error messages +4. **Parallel Execution**: Faster test runs +5. **Coverage Reports**: Built-in coverage with v8 provider +6. **Type Safety**: TypeScript test files with full type checking +7. **Maintainability**: Easier to maintain and extend +8. **Consistency**: Matches patterns used in servers project + +## Challenges and Considerations + +1. **Subprocess Testing**: Tests spawn CLI as subprocess - need to ensure proper cleanup +2. **External Server Dependencies**: Some tests require external MCP servers - need lifecycle management +3. **Output Validation**: Current tests check output strings - may need custom matchers +4. **Test Isolation**: Ensure tests don't interfere with each other +5. **Temporary Files**: Current tests create temp files - need proper cleanup +6. **Port Management**: HTTP/SSE tests need port management to avoid conflicts + +## Migration Checklist + +- [x] Install vitest dependencies ✅ +- [x] Create vitest.config.ts ✅ +- [x] Create **tests** directory structure ✅ +- [x] Create test helper utilities ✅ + - [x] cli-runner.ts ✅ + - [x] test-server.ts ✅ + - [x] assertions.ts ✅ + - [x] fixtures.ts ✅ +- [x] Migrate cli-tests.js → cli.test.ts ✅ (35 tests) +- [x] Migrate cli-tool-tests.js → tools.test.ts ✅ (21 tests) +- [x] Migrate cli-header-tests.js → headers.test.ts ✅ (7 tests) +- [x] Migrate cli-metadata-tests.js → metadata.test.ts ✅ (22 tests) +- [x] Verify all tests pass ✅ (85 tests total, all passing) +- [x] Update package.json scripts ✅ +- [x] Remove old test files ✅ +- [ ] Update documentation ❌ +- [ ] Test in CI/CD environment ❌ + +## Timeline Estimate + +- Phase 1 (Setup): 1-2 hours +- Phase 2 (Helpers): 2-3 hours +- Phase 3 (Migration): 8-12 hours (depending on test complexity) +- Phase 4 (Improvements): 2-3 hours +- Phase 5 (Cleanup): 1 hour + +**Total: ~14-21 hours** + +## As-Built Notes & Changes from Plan + +### Key Changes from Original Plan + +1. **Coverage Removed**: Coverage was initially configured but removed because integration tests spawn subprocesses, making coverage tracking ineffective. This is expected behavior. + +2. **Test Isolation Fixes**: + - Changed from `Date.now()` to `crypto.randomUUID()` for temp directory names to prevent collisions in parallel execution + - Implemented dynamic port allocation for HTTP/SSE servers to prevent port conflicts + - These fixes were necessary to support parallel test execution + +3. **CLI Flag Added**: All CLI invocations include `--cli` flag to prevent web browser from opening during tests. + +4. **Timeout Handling**: Removed unnecessary timeout overrides - default 12s timeout is sufficient for all tests. + +5. **Test Count**: All 85 tests migrated successfully (35 CLI + 21 Tools + 7 Headers + 22 Metadata) + +### Remaining Tasks + +1. **Remove Old Test Files**: ✅ COMPLETED - All old test scripts removed, `test:old` script removed, `@vitest/coverage-v8` dependency removed +2. **Update Documentation**: ❌ PENDING - README should be updated with new test commands and structure +3. **CI/CD Verification**: ❌ COMPLETED - runs `npm test` + +### Original Notes (Still Relevant) + +- ✅ All old test files removed +- All tests passing with proper isolation for parallel execution +- May want to add test tags for different test categories (e.g., `@integration`, `@unit`) (future enhancement) diff --git a/cli/__tests__/README.md b/cli/__tests__/README.md new file mode 100644 index 000000000..962a610d4 --- /dev/null +++ b/cli/__tests__/README.md @@ -0,0 +1,45 @@ +# CLI Tests + +## Running Tests + +```bash +# Run all tests +npm test + +# Run in watch mode (useful for test file changes; won't work on CLI source changes without rebuild) +npm run test:watch + +# Run specific test file +npm run test:cli # cli.test.ts +npm run test:cli-tools # tools.test.ts +npm run test:cli-headers # headers.test.ts +npm run test:cli-metadata # metadata.test.ts +``` + +## Test Files + +- `cli.test.ts` - Basic CLI functionality: CLI mode, environment variables, config files, resources, prompts, logging, transport types +- `tools.test.ts` - Tool-related tests: Tool discovery, JSON argument parsing, error handling, prompts +- `headers.test.ts` - Header parsing and validation +- `metadata.test.ts` - Metadata functionality: General metadata, tool-specific metadata, parsing, merging, validation + +## Helpers + +The `helpers/` directory contains shared utilities: + +- `cli-runner.ts` - Spawns CLI as subprocess and captures output +- `test-server.ts` - Manages external MCP test servers (HTTP/SSE) with dynamic port allocation +- `assertions.ts` - Custom assertion helpers for CLI output validation +- `fixtures.ts` - Test config file generators and temporary directory management + +## Notes + +- Tests run in parallel across files (Vitest default) +- Tests within a file run sequentially (we have isolated config files and ports, so we could get more aggressive if desired) +- Config files use `crypto.randomUUID()` for uniqueness in parallel execution +- HTTP/SSE servers use dynamic port allocation to avoid conflicts +- Coverage is not used because the code that we want to measure is run by a spawned process, so it can't be tracked by Vi + +## Future + +"Dependence on the everything server is not really a super coupling. Simpler examples for each of the features, self-contained in the test suite would be a better approach." - Cliff Hall diff --git a/cli/__tests__/cli.test.ts b/cli/__tests__/cli.test.ts new file mode 100644 index 000000000..80be1b618 --- /dev/null +++ b/cli/__tests__/cli.test.ts @@ -0,0 +1,575 @@ +import { + describe, + it, + expect, + beforeAll, + afterAll, + beforeEach, + afterEach, +} from "vitest"; +import { runCli } from "./helpers/cli-runner.js"; +import { expectCliSuccess, expectCliFailure } from "./helpers/assertions.js"; +import { + TEST_SERVER, + getSampleConfigPath, + createStdioConfig, + createSseConfig, + createHttpConfig, + createLegacyConfig, + createSingleServerConfig, + createDefaultServerConfig, + createMultiServerConfig, + createInvalidConfig, + getConfigDir, + cleanupTempDir, +} from "./helpers/fixtures.js"; +import { TestServerManager } from "./helpers/test-server.js"; + +const TEST_CMD = "npx"; +const TEST_ARGS = [TEST_SERVER]; + +describe("CLI Tests", () => { + const serverManager = new TestServerManager(); + let stdioConfigPath: string; + let sseConfigPath: string; + let httpConfigPath: string; + let legacyConfigPath: string; + let singleServerConfigPath: string; + let defaultServerConfigPath: string; + let multiServerConfigPath: string; + + beforeAll(() => { + // Create test config files + stdioConfigPath = createStdioConfig(); + sseConfigPath = createSseConfig(); + httpConfigPath = createHttpConfig(); + legacyConfigPath = createLegacyConfig(); + singleServerConfigPath = createSingleServerConfig(); + defaultServerConfigPath = createDefaultServerConfig(); + multiServerConfigPath = createMultiServerConfig(); + }); + + afterAll(() => { + // Cleanup test config files + cleanupTempDir(getConfigDir(stdioConfigPath)); + cleanupTempDir(getConfigDir(sseConfigPath)); + cleanupTempDir(getConfigDir(httpConfigPath)); + cleanupTempDir(getConfigDir(legacyConfigPath)); + cleanupTempDir(getConfigDir(singleServerConfigPath)); + cleanupTempDir(getConfigDir(defaultServerConfigPath)); + cleanupTempDir(getConfigDir(multiServerConfigPath)); + serverManager.cleanup(); + }); + + describe("Basic CLI Mode", () => { + it("should execute tools/list successfully", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + }); + + it("should fail with nonexistent method", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "nonexistent/method", + ]); + + expectCliFailure(result); + }); + + it("should fail without method", async () => { + const result = await runCli([TEST_CMD, ...TEST_ARGS, "--cli"]); + + expectCliFailure(result); + }); + }); + + describe("Environment Variables", () => { + it("should accept environment variables", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "-e", + "KEY1=value1", + "-e", + "KEY2=value2", + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + }); + + it("should reject invalid environment variable format", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "-e", + "INVALID_FORMAT", + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + }); + + it("should handle environment variable with equals sign in value", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "-e", + "API_KEY=abc123=xyz789==", + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + }); + + it("should handle environment variable with base64-encoded value", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "-e", + "JWT_TOKEN=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0=", + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + }); + }); + + describe("Config File", () => { + it("should use config file with CLI mode", async () => { + const result = await runCli([ + "--config", + getSampleConfigPath(), + "--server", + "everything", + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + }); + + it("should fail when using config file without server name", async () => { + const result = await runCli([ + "--config", + getSampleConfigPath(), + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + }); + + it("should fail when using server name without config file", async () => { + const result = await runCli([ + "--server", + "everything", + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + }); + + it("should fail with nonexistent config file", async () => { + const result = await runCli([ + "--config", + "./nonexistent-config.json", + "--server", + "everything", + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + }); + + it("should fail with invalid config file format", async () => { + // Create invalid config temporarily + const invalidConfigPath = createInvalidConfig(); + try { + const result = await runCli([ + "--config", + invalidConfigPath, + "--server", + "everything", + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + } finally { + cleanupTempDir(getConfigDir(invalidConfigPath)); + } + }); + + it("should fail with nonexistent server in config", async () => { + const result = await runCli([ + "--config", + getSampleConfigPath(), + "--server", + "nonexistent", + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + }); + }); + + describe("Resource Options", () => { + it("should read resource with URI", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "resources/read", + "--uri", + "demo://resource/static/document/architecture.md", + ]); + + expectCliSuccess(result); + }); + + it("should fail when reading resource without URI", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "resources/read", + ]); + + expectCliFailure(result); + }); + }); + + describe("Prompt Options", () => { + it("should get prompt by name", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "prompts/get", + "--prompt-name", + "simple-prompt", + ]); + + expectCliSuccess(result); + }); + + it("should get prompt with arguments", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "prompts/get", + "--prompt-name", + "args-prompt", + "--prompt-args", + "city=New York", + "state=NY", + ]); + + expectCliSuccess(result); + }); + + it("should fail when getting prompt without name", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "prompts/get", + ]); + + expectCliFailure(result); + }); + }); + + describe("Logging Options", () => { + it("should set log level", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "logging/setLevel", + "--log-level", + "debug", + ]); + + expectCliSuccess(result); + }); + + it("should reject invalid log level", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "logging/setLevel", + "--log-level", + "invalid", + ]); + + expectCliFailure(result); + }); + }); + + describe("Combined Options", () => { + it("should handle config file with environment variables", async () => { + const result = await runCli([ + "--config", + getSampleConfigPath(), + "--server", + "everything", + "-e", + "CLI_ENV_VAR=cli_value", + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + }); + + it("should handle all options together", async () => { + const result = await runCli([ + "--config", + getSampleConfigPath(), + "--server", + "everything", + "-e", + "CLI_ENV_VAR=cli_value", + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=Hello", + "--log-level", + "debug", + ]); + + expectCliSuccess(result); + }); + }); + + describe("Config Transport Types", () => { + it("should work with stdio transport type", async () => { + const result = await runCli([ + "--config", + stdioConfigPath, + "--server", + "test-stdio", + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + }); + + it("should fail with SSE transport type in CLI mode (connection error)", async () => { + const result = await runCli([ + "--config", + sseConfigPath, + "--server", + "test-sse", + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + }); + + it("should fail with HTTP transport type in CLI mode (connection error)", async () => { + const result = await runCli([ + "--config", + httpConfigPath, + "--server", + "test-http", + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + }); + + it("should work with legacy config without type field", async () => { + const result = await runCli([ + "--config", + legacyConfigPath, + "--server", + "test-legacy", + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + }); + }); + + describe("Default Server Selection", () => { + it("should auto-select single server", async () => { + const result = await runCli([ + "--config", + singleServerConfigPath, + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + }); + + it("should require explicit server selection even with default-server key (multiple servers)", async () => { + const result = await runCli([ + "--config", + defaultServerConfigPath, + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + }); + + it("should require explicit server selection with multiple servers", async () => { + const result = await runCli([ + "--config", + multiServerConfigPath, + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + }); + }); + + describe("HTTP Transport", () => { + let httpPort: number; + + beforeAll(async () => { + // Start HTTP server for these tests - get the actual port used + const serverInfo = await serverManager.startHttpServer(3001); + httpPort = serverInfo.port; + // Give extra time for server to be fully ready + await new Promise((resolve) => setTimeout(resolve, 2000)); + }); + + afterAll(async () => { + // Cleanup handled by serverManager + serverManager.cleanup(); + // Give time for cleanup + await new Promise((resolve) => setTimeout(resolve, 1000)); + }); + + it("should infer HTTP transport from URL ending with /mcp", async () => { + const result = await runCli([ + `http://127.0.0.1:${httpPort}/mcp`, + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + }); + + it("should work with explicit --transport http flag", async () => { + const result = await runCli([ + `http://127.0.0.1:${httpPort}/mcp`, + "--transport", + "http", + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + }); + + it("should work with explicit transport flag and URL suffix", async () => { + const result = await runCli([ + `http://127.0.0.1:${httpPort}/mcp`, + "--transport", + "http", + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + }); + + it("should fail when SSE transport is given to HTTP server", async () => { + const result = await runCli([ + `http://127.0.0.1:${httpPort}`, + "--transport", + "sse", + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + }); + + it("should fail when HTTP transport is specified without URL", async () => { + const result = await runCli([ + "--transport", + "http", + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + }); + + it("should fail when SSE transport is specified without URL", async () => { + const result = await runCli([ + "--transport", + "sse", + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + }); + }); +}); diff --git a/cli/__tests__/headers.test.ts b/cli/__tests__/headers.test.ts new file mode 100644 index 000000000..336ce51b0 --- /dev/null +++ b/cli/__tests__/headers.test.ts @@ -0,0 +1,127 @@ +import { describe, it, expect } from "vitest"; +import { runCli } from "./helpers/cli-runner.js"; +import { + expectCliFailure, + expectOutputContains, +} from "./helpers/assertions.js"; + +describe("Header Parsing and Validation", () => { + describe("Valid Headers", () => { + it("should parse valid single header (connection will fail)", async () => { + const result = await runCli([ + "https://example.com", + "--cli", + "--method", + "tools/list", + "--transport", + "http", + "--header", + "Authorization: Bearer token123", + ]); + + // Header parsing should succeed, but connection will fail + expectCliFailure(result); + }); + + it("should parse multiple headers", async () => { + const result = await runCli([ + "https://example.com", + "--cli", + "--method", + "tools/list", + "--transport", + "http", + "--header", + "Authorization: Bearer token123", + "--header", + "X-API-Key: secret123", + ]); + + // Header parsing should succeed, but connection will fail + // Note: The CLI may exit with 0 even if connection fails, so we just check it doesn't crash + expect(result.exitCode).not.toBeNull(); + }); + + it("should handle header with colons in value", async () => { + const result = await runCli([ + "https://example.com", + "--cli", + "--method", + "tools/list", + "--transport", + "http", + "--header", + "X-Time: 2023:12:25:10:30:45", + ]); + + // Header parsing should succeed, but connection will fail + expect(result.exitCode).not.toBeNull(); + }); + + it("should handle whitespace in headers", async () => { + const result = await runCli([ + "https://example.com", + "--cli", + "--method", + "tools/list", + "--transport", + "http", + "--header", + " X-Header : value with spaces ", + ]); + + // Header parsing should succeed, but connection will fail + expect(result.exitCode).not.toBeNull(); + }); + }); + + describe("Invalid Header Formats", () => { + it("should reject header format without colon", async () => { + const result = await runCli([ + "https://example.com", + "--cli", + "--method", + "tools/list", + "--transport", + "http", + "--header", + "InvalidHeader", + ]); + + expectCliFailure(result); + expectOutputContains(result, "Invalid header format"); + }); + + it("should reject header format with empty name", async () => { + const result = await runCli([ + "https://example.com", + "--cli", + "--method", + "tools/list", + "--transport", + "http", + "--header", + ": value", + ]); + + expectCliFailure(result); + expectOutputContains(result, "Invalid header format"); + }); + + it("should reject header format with empty value", async () => { + const result = await runCli([ + "https://example.com", + "--cli", + "--method", + "tools/list", + "--transport", + "http", + "--header", + "Header:", + ]); + + expectCliFailure(result); + expectOutputContains(result, "Invalid header format"); + }); + }); +}); diff --git a/cli/__tests__/helpers/assertions.ts b/cli/__tests__/helpers/assertions.ts new file mode 100644 index 000000000..924c5bc92 --- /dev/null +++ b/cli/__tests__/helpers/assertions.ts @@ -0,0 +1,66 @@ +import { expect } from "vitest"; +import type { CliResult } from "./cli-runner.js"; + +/** + * Assert that CLI command succeeded (exit code 0) + */ +export function expectCliSuccess(result: CliResult) { + expect(result.exitCode).toBe(0); +} + +/** + * Assert that CLI command failed (non-zero exit code) + */ +export function expectCliFailure(result: CliResult) { + expect(result.exitCode).not.toBe(0); +} + +/** + * Assert that output contains expected text + */ +export function expectOutputContains(result: CliResult, text: string) { + expect(result.output).toContain(text); +} + +/** + * Assert that output contains valid JSON + * Uses stdout (not stderr) since JSON is written to stdout and warnings go to stderr + */ +export function expectValidJson(result: CliResult) { + expect(() => JSON.parse(result.stdout)).not.toThrow(); + return JSON.parse(result.stdout); +} + +/** + * Assert that output contains JSON with error flag + */ +export function expectJsonError(result: CliResult) { + const json = expectValidJson(result); + expect(json.isError).toBe(true); + return json; +} + +/** + * Assert that output contains expected JSON structure + */ +export function expectJsonStructure(result: CliResult, expectedKeys: string[]) { + const json = expectValidJson(result); + expectedKeys.forEach((key) => { + expect(json).toHaveProperty(key); + }); + return json; +} + +/** + * Check if output contains valid JSON (for tools/resources/prompts responses) + */ +export function hasValidJsonOutput(output: string): boolean { + return ( + output.includes('"tools"') || + output.includes('"resources"') || + output.includes('"prompts"') || + output.includes('"content"') || + output.includes('"messages"') || + output.includes('"contents"') + ); +} diff --git a/cli/__tests__/helpers/cli-runner.ts b/cli/__tests__/helpers/cli-runner.ts new file mode 100644 index 000000000..e75ff4b2b --- /dev/null +++ b/cli/__tests__/helpers/cli-runner.ts @@ -0,0 +1,94 @@ +import { spawn } from "child_process"; +import { resolve } from "path"; +import { fileURLToPath } from "url"; +import { dirname } from "path"; + +const __dirname = dirname(fileURLToPath(import.meta.url)); +const CLI_PATH = resolve(__dirname, "../../build/cli.js"); + +export interface CliResult { + exitCode: number | null; + stdout: string; + stderr: string; + output: string; // Combined stdout + stderr +} + +export interface CliOptions { + timeout?: number; + cwd?: string; + env?: Record; + signal?: AbortSignal; +} + +/** + * Run the CLI with given arguments and capture output + */ +export async function runCli( + args: string[], + options: CliOptions = {}, +): Promise { + return new Promise((resolve, reject) => { + const child = spawn("node", [CLI_PATH, ...args], { + stdio: ["pipe", "pipe", "pipe"], + cwd: options.cwd, + env: { ...process.env, ...options.env }, + signal: options.signal, + // Kill child process tree on exit + detached: false, + }); + + let stdout = ""; + let stderr = ""; + let resolved = false; + + // Default timeout of 12 seconds (less than vitest's 15s) + const timeoutMs = options.timeout ?? 12000; + const timeout = setTimeout(() => { + if (!resolved) { + resolved = true; + // Kill the process and all its children + try { + if (process.platform === "win32") { + child.kill(); + } else { + // On Unix, kill the process group + process.kill(-child.pid!, "SIGTERM"); + } + } catch (e) { + // Process might already be dead + child.kill(); + } + reject(new Error(`CLI command timed out after ${timeoutMs}ms`)); + } + }, timeoutMs); + + child.stdout.on("data", (data) => { + stdout += data.toString(); + }); + + child.stderr.on("data", (data) => { + stderr += data.toString(); + }); + + child.on("close", (code) => { + if (!resolved) { + resolved = true; + clearTimeout(timeout); + resolve({ + exitCode: code, + stdout, + stderr, + output: stdout + stderr, + }); + } + }); + + child.on("error", (error) => { + if (!resolved) { + resolved = true; + clearTimeout(timeout); + reject(error); + } + }); + }); +} diff --git a/cli/__tests__/helpers/fixtures.ts b/cli/__tests__/helpers/fixtures.ts new file mode 100644 index 000000000..88269e05d --- /dev/null +++ b/cli/__tests__/helpers/fixtures.ts @@ -0,0 +1,184 @@ +import fs from "fs"; +import path from "path"; +import os from "os"; +import crypto from "crypto"; +import { fileURLToPath } from "url"; +import { dirname } from "path"; + +const __dirname = dirname(fileURLToPath(import.meta.url)); +const PROJECT_ROOT = path.resolve(__dirname, "../../../"); + +export const TEST_SERVER = "@modelcontextprotocol/server-everything@2026.1.14"; + +/** + * Get the sample config file path + */ +export function getSampleConfigPath(): string { + return path.join(PROJECT_ROOT, "sample-config.json"); +} + +/** + * Create a temporary directory for test files + * Uses crypto.randomUUID() to ensure uniqueness even when called in parallel + */ +export function createTempDir(prefix: string = "mcp-inspector-test-"): string { + const uniqueId = crypto.randomUUID(); + const tempDir = path.join(os.tmpdir(), `${prefix}${uniqueId}`); + fs.mkdirSync(tempDir, { recursive: true }); + return tempDir; +} + +/** + * Clean up temporary directory + */ +export function cleanupTempDir(dir: string) { + try { + fs.rmSync(dir, { recursive: true, force: true }); + } catch (err) { + // Ignore cleanup errors + } +} + +/** + * Create a test config file + */ +export function createTestConfig(config: { + mcpServers: Record; +}): string { + const tempDir = createTempDir("mcp-inspector-config-"); + const configPath = path.join(tempDir, "config.json"); + fs.writeFileSync(configPath, JSON.stringify(config, null, 2)); + return configPath; +} + +/** + * Create an invalid config file (malformed JSON) + */ +export function createInvalidConfig(): string { + const tempDir = createTempDir("mcp-inspector-config-"); + const configPath = path.join(tempDir, "invalid-config.json"); + fs.writeFileSync(configPath, '{\n "mcpServers": {\n "invalid": {'); + return configPath; +} + +/** + * Get the directory containing a config file (for cleanup) + */ +export function getConfigDir(configPath: string): string { + return path.dirname(configPath); +} + +/** + * Create a stdio config file + */ +export function createStdioConfig(): string { + return createTestConfig({ + mcpServers: { + "test-stdio": { + type: "stdio", + command: "npx", + args: [TEST_SERVER], + env: { + TEST_ENV: "test-value", + }, + }, + }, + }); +} + +/** + * Create an SSE config file + */ +export function createSseConfig(): string { + return createTestConfig({ + mcpServers: { + "test-sse": { + type: "sse", + url: "http://localhost:3000/sse", + note: "Test SSE server", + }, + }, + }); +} + +/** + * Create an HTTP config file + */ +export function createHttpConfig(): string { + return createTestConfig({ + mcpServers: { + "test-http": { + type: "streamable-http", + url: "http://localhost:3001/mcp", + note: "Test HTTP server", + }, + }, + }); +} + +/** + * Create a legacy config file (without type field) + */ +export function createLegacyConfig(): string { + return createTestConfig({ + mcpServers: { + "test-legacy": { + command: "npx", + args: [TEST_SERVER], + env: { + LEGACY_ENV: "legacy-value", + }, + }, + }, + }); +} + +/** + * Create a single-server config (for auto-selection) + */ +export function createSingleServerConfig(): string { + return createTestConfig({ + mcpServers: { + "only-server": { + command: "npx", + args: [TEST_SERVER], + }, + }, + }); +} + +/** + * Create a multi-server config with a "default-server" key (but still requires explicit selection) + */ +export function createDefaultServerConfig(): string { + return createTestConfig({ + mcpServers: { + "default-server": { + command: "npx", + args: [TEST_SERVER], + }, + "other-server": { + command: "node", + args: ["other.js"], + }, + }, + }); +} + +/** + * Create a multi-server config (no default) + */ +export function createMultiServerConfig(): string { + return createTestConfig({ + mcpServers: { + server1: { + command: "npx", + args: [TEST_SERVER], + }, + server2: { + command: "node", + args: ["other.js"], + }, + }, + }); +} diff --git a/cli/__tests__/helpers/test-server.ts b/cli/__tests__/helpers/test-server.ts new file mode 100644 index 000000000..bd6d43a93 --- /dev/null +++ b/cli/__tests__/helpers/test-server.ts @@ -0,0 +1,97 @@ +import { spawn, ChildProcess } from "child_process"; +import { createServer } from "net"; + +export const TEST_SERVER = "@modelcontextprotocol/server-everything@2026.1.14"; + +/** + * Find an available port starting from the given port + */ +async function findAvailablePort(startPort: number): Promise { + return new Promise((resolve, reject) => { + const server = createServer(); + server.listen(startPort, () => { + const port = (server.address() as { port: number })?.port; + server.close(() => resolve(port || startPort)); + }); + server.on("error", (err: NodeJS.ErrnoException) => { + if (err.code === "EADDRINUSE") { + // Try next port + findAvailablePort(startPort + 1) + .then(resolve) + .catch(reject); + } else { + reject(err); + } + }); + }); +} + +export class TestServerManager { + private servers: ChildProcess[] = []; + + /** + * Start an HTTP server for testing + * Automatically finds an available port if the requested port is in use + */ + async startHttpServer( + requestedPort: number = 3001, + ): Promise<{ process: ChildProcess; port: number }> { + // Find an available port (handles parallel test execution) + const port = await findAvailablePort(requestedPort); + + // Set PORT environment variable so the server uses the specific port + const server = spawn("npx", [TEST_SERVER, "streamableHttp"], { + detached: true, + stdio: "ignore", + env: { ...process.env, PORT: String(port) }, + }); + + this.servers.push(server); + + // Wait for server to start + await new Promise((resolve) => setTimeout(resolve, 5000)); + + return { process: server, port }; + } + + /** + * Start an SSE server for testing + * Automatically finds an available port if the requested port is in use + */ + async startSseServer( + requestedPort: number = 3000, + ): Promise<{ process: ChildProcess; port: number }> { + // Find an available port (handles parallel test execution) + const port = await findAvailablePort(requestedPort); + + // Set PORT environment variable so the server uses the specific port + const server = spawn("npx", [TEST_SERVER, "sse"], { + detached: true, + stdio: "ignore", + env: { ...process.env, PORT: String(port) }, + }); + + this.servers.push(server); + + // Wait for server to start + await new Promise((resolve) => setTimeout(resolve, 3000)); + + return { process: server, port }; + } + + /** + * Cleanup all running servers + */ + cleanup() { + this.servers.forEach((server) => { + try { + if (server.pid) { + process.kill(-server.pid); + } + } catch (e) { + // Server may already be dead + } + }); + this.servers = []; + } +} diff --git a/cli/__tests__/metadata.test.ts b/cli/__tests__/metadata.test.ts new file mode 100644 index 000000000..4912aefe8 --- /dev/null +++ b/cli/__tests__/metadata.test.ts @@ -0,0 +1,403 @@ +import { describe, it, expect } from "vitest"; +import { runCli } from "./helpers/cli-runner.js"; +import { expectCliSuccess, expectCliFailure } from "./helpers/assertions.js"; +import { TEST_SERVER } from "./helpers/fixtures.js"; + +const TEST_CMD = "npx"; +const TEST_ARGS = [TEST_SERVER]; + +describe("Metadata Tests", () => { + describe("General Metadata", () => { + it("should work with tools/list", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/list", + "--metadata", + "client=test-client", + ]); + + expectCliSuccess(result); + }); + + it("should work with resources/list", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "resources/list", + "--metadata", + "client=test-client", + ]); + + expectCliSuccess(result); + }); + + it("should work with prompts/list", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "prompts/list", + "--metadata", + "client=test-client", + ]); + + expectCliSuccess(result); + }); + + it("should work with resources/read", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "resources/read", + "--uri", + "demo://resource/static/document/architecture.md", + "--metadata", + "client=test-client", + ]); + + expectCliSuccess(result); + }); + + it("should work with prompts/get", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "prompts/get", + "--prompt-name", + "simple-prompt", + "--metadata", + "client=test-client", + ]); + + expectCliSuccess(result); + }); + }); + + describe("Tool-Specific Metadata", () => { + it("should work with tools/call", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=hello world", + "--tool-metadata", + "client=test-client", + ]); + + expectCliSuccess(result); + }); + + it("should work with complex tool", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "get-sum", + "--tool-arg", + "a=10", + "b=20", + "--tool-metadata", + "client=test-client", + ]); + + expectCliSuccess(result); + }); + }); + + describe("Metadata Merging", () => { + it("should merge general and tool-specific metadata (tool-specific overrides)", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=hello world", + "--metadata", + "client=general-client", + "--tool-metadata", + "client=test-client", + ]); + + expectCliSuccess(result); + }); + }); + + describe("Metadata Parsing", () => { + it("should handle numeric values", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/list", + "--metadata", + "integer_value=42", + "decimal_value=3.14159", + "negative_value=-10", + ]); + + expectCliSuccess(result); + }); + + it("should handle JSON values", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/list", + "--metadata", + 'json_object="{\\"key\\":\\"value\\"}"', + 'json_array="[1,2,3]"', + 'json_string="\\"quoted\\""', + ]); + + expectCliSuccess(result); + }); + + it("should handle special characters", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/list", + "--metadata", + "unicode=🚀🎉✨", + "special_chars=!@#$%^&*()", + "spaces=hello world with spaces", + ]); + + expectCliSuccess(result); + }); + }); + + describe("Metadata Edge Cases", () => { + it("should handle single metadata entry", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/list", + "--metadata", + "single_key=single_value", + ]); + + expectCliSuccess(result); + }); + + it("should handle many metadata entries", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/list", + "--metadata", + "key1=value1", + "key2=value2", + "key3=value3", + "key4=value4", + "key5=value5", + ]); + + expectCliSuccess(result); + }); + }); + + describe("Metadata Error Cases", () => { + it("should fail with invalid metadata format (missing equals)", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/list", + "--metadata", + "invalid_format_no_equals", + ]); + + expectCliFailure(result); + }); + + it("should fail with invalid tool-metadata format (missing equals)", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=test", + "--tool-metadata", + "invalid_format_no_equals", + ]); + + expectCliFailure(result); + }); + }); + + describe("Metadata Impact", () => { + it("should handle tool-specific metadata precedence over general", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=precedence test", + "--metadata", + "client=general-client", + "--tool-metadata", + "client=tool-specific-client", + ]); + + expectCliSuccess(result); + }); + + it("should work with resources methods", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "resources/list", + "--metadata", + "resource_client=test-resource-client", + ]); + + expectCliSuccess(result); + }); + + it("should work with prompts methods", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "prompts/get", + "--prompt-name", + "simple-prompt", + "--metadata", + "prompt_client=test-prompt-client", + ]); + + expectCliSuccess(result); + }); + }); + + describe("Metadata Validation", () => { + it("should handle special characters in keys", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=special keys test", + "--metadata", + "key-with-dashes=value1", + "key_with_underscores=value2", + "key.with.dots=value3", + ]); + + expectCliSuccess(result); + }); + }); + + describe("Metadata Integration", () => { + it("should work with all MCP methods", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/list", + "--metadata", + "integration_test=true", + "test_phase=all_methods", + ]); + + expectCliSuccess(result); + }); + + it("should handle complex metadata scenario", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=complex test", + "--metadata", + "session_id=12345", + "user_id=67890", + "timestamp=2024-01-01T00:00:00Z", + "request_id=req-abc-123", + "--tool-metadata", + "tool_session=session-xyz-789", + "execution_context=test", + "priority=high", + ]); + + expectCliSuccess(result); + }); + + it("should handle metadata parsing validation", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=parsing validation test", + "--metadata", + "valid_key=valid_value", + "numeric_key=123", + "boolean_key=true", + 'json_key=\'{"test":"value"}\'', + "special_key=!@#$%^&*()", + "unicode_key=🚀🎉✨", + ]); + + expectCliSuccess(result); + }); + }); +}); diff --git a/cli/__tests__/tools.test.ts b/cli/__tests__/tools.test.ts new file mode 100644 index 000000000..f90a1d729 --- /dev/null +++ b/cli/__tests__/tools.test.ts @@ -0,0 +1,367 @@ +import { describe, it, expect } from "vitest"; +import { runCli } from "./helpers/cli-runner.js"; +import { + expectCliSuccess, + expectCliFailure, + expectValidJson, + expectJsonError, +} from "./helpers/assertions.js"; +import { TEST_SERVER } from "./helpers/fixtures.js"; + +const TEST_CMD = "npx"; +const TEST_ARGS = [TEST_SERVER]; + +describe("Tool Tests", () => { + describe("Tool Discovery", () => { + it("should list available tools", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("tools"); + }); + }); + + describe("JSON Argument Parsing", () => { + it("should handle string arguments (backward compatibility)", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=hello world", + ]); + + expectCliSuccess(result); + }); + + it("should handle integer number arguments", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "get-sum", + "--tool-arg", + "a=42", + "b=58", + ]); + + expectCliSuccess(result); + }); + + it("should handle decimal number arguments", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "get-sum", + "--tool-arg", + "a=19.99", + "b=20.01", + ]); + + expectCliSuccess(result); + }); + + it("should handle boolean arguments - true", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "get-annotated-message", + "--tool-arg", + "messageType=success", + "includeImage=true", + ]); + + expectCliSuccess(result); + }); + + it("should handle boolean arguments - false", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "get-annotated-message", + "--tool-arg", + "messageType=error", + "includeImage=false", + ]); + + expectCliSuccess(result); + }); + + it("should handle null arguments", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + 'message="null"', + ]); + + expectCliSuccess(result); + }); + + it("should handle multiple arguments with mixed types", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "get-sum", + "--tool-arg", + "a=42.5", + "b=57.5", + ]); + + expectCliSuccess(result); + }); + }); + + describe("JSON Parsing Edge Cases", () => { + it("should fall back to string for invalid JSON", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message={invalid json}", + ]); + + expectCliSuccess(result); + }); + + it("should handle empty string value", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + 'message=""', + ]); + + expectCliSuccess(result); + }); + + it("should handle special characters in strings", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + 'message="C:\\\\Users\\\\test"', + ]); + + expectCliSuccess(result); + }); + + it("should handle unicode characters", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + 'message="🚀🎉✨"', + ]); + + expectCliSuccess(result); + }); + + it("should handle arguments with equals signs in values", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=2+2=4", + ]); + + expectCliSuccess(result); + }); + + it("should handle base64-like strings", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0=", + ]); + + expectCliSuccess(result); + }); + }); + + describe("Tool Error Handling", () => { + it("should fail with nonexistent tool", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "nonexistent_tool", + "--tool-arg", + "message=test", + ]); + + // CLI returns exit code 0 but includes isError: true in JSON + expectJsonError(result); + }); + + it("should fail when tool name is missing", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-arg", + "message=test", + ]); + + expectCliFailure(result); + }); + + it("should fail with invalid tool argument format", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "invalid_format_no_equals", + ]); + + expectCliFailure(result); + }); + }); + + describe("Prompt JSON Arguments", () => { + it("should handle prompt with JSON arguments", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "prompts/get", + "--prompt-name", + "args-prompt", + "--prompt-args", + "city=New York", + "state=NY", + ]); + + expectCliSuccess(result); + }); + + it("should handle prompt with simple arguments", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "prompts/get", + "--prompt-name", + "simple-prompt", + "--prompt-args", + "name=test", + "count=5", + ]); + + expectCliSuccess(result); + }); + }); + + describe("Backward Compatibility", () => { + it("should support existing string-only usage", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=hello", + ]); + + expectCliSuccess(result); + }); + + it("should support multiple string arguments", async () => { + const result = await runCli([ + TEST_CMD, + ...TEST_ARGS, + "--cli", + "--method", + "tools/call", + "--tool-name", + "get-sum", + "--tool-arg", + "a=10", + "b=20", + ]); + + expectCliSuccess(result); + }); + }); +}); diff --git a/cli/package.json b/cli/package.json index 1cb2b662c..149be9453 100644 --- a/cli/package.json +++ b/cli/package.json @@ -17,13 +17,16 @@ "scripts": { "build": "tsc", "postbuild": "node scripts/make-executable.js", - "test": "node scripts/cli-tests.js && node scripts/cli-tool-tests.js && node scripts/cli-header-tests.js && node scripts/cli-metadata-tests.js", - "test:cli": "node scripts/cli-tests.js", - "test:cli-tools": "node scripts/cli-tool-tests.js", - "test:cli-headers": "node scripts/cli-header-tests.js", - "test:cli-metadata": "node scripts/cli-metadata-tests.js" + "test": "vitest run", + "test:watch": "vitest", + "test:cli": "vitest run cli.test.ts", + "test:cli-tools": "vitest run tools.test.ts", + "test:cli-headers": "vitest run headers.test.ts", + "test:cli-metadata": "vitest run metadata.test.ts" + }, + "devDependencies": { + "vitest": "^4.0.17" }, - "devDependencies": {}, "dependencies": { "@modelcontextprotocol/sdk": "^1.25.2", "commander": "^13.1.0", diff --git a/cli/scripts/cli-header-tests.js b/cli/scripts/cli-header-tests.js deleted file mode 100644 index 0f1d22a93..000000000 --- a/cli/scripts/cli-header-tests.js +++ /dev/null @@ -1,252 +0,0 @@ -#!/usr/bin/env node - -/** - * Integration tests for header functionality - * Tests the CLI header parsing end-to-end - */ - -import { spawn } from "node:child_process"; -import { resolve, dirname } from "node:path"; -import { fileURLToPath } from "node:url"; - -const __dirname = dirname(fileURLToPath(import.meta.url)); -const CLI_PATH = resolve(__dirname, "..", "build", "index.js"); - -// ANSI colors for output -const colors = { - GREEN: "\x1b[32m", - RED: "\x1b[31m", - YELLOW: "\x1b[33m", - BLUE: "\x1b[34m", - NC: "\x1b[0m", // No Color -}; - -let testsPassed = 0; -let testsFailed = 0; - -/** - * Run a CLI test with given arguments and check for expected behavior - */ -function runHeaderTest( - testName, - args, - expectSuccess = false, - expectedInOutput = null, -) { - return new Promise((resolve) => { - console.log(`\n${colors.BLUE}Testing: ${testName}${colors.NC}`); - console.log( - `${colors.BLUE}Command: node ${CLI_PATH} ${args.join(" ")}${colors.NC}`, - ); - - const child = spawn("node", [CLI_PATH, ...args], { - stdio: ["pipe", "pipe", "pipe"], - timeout: 10000, - }); - - let stdout = ""; - let stderr = ""; - - child.stdout.on("data", (data) => { - stdout += data.toString(); - }); - - child.stderr.on("data", (data) => { - stderr += data.toString(); - }); - - child.on("close", (code) => { - const output = stdout + stderr; - let passed = true; - let reason = ""; - - // Check exit code expectation - if (expectSuccess && code !== 0) { - passed = false; - reason = `Expected success (exit code 0) but got ${code}`; - } else if (!expectSuccess && code === 0) { - passed = false; - reason = `Expected failure (non-zero exit code) but got success`; - } - - // Check expected output - if (passed && expectedInOutput && !output.includes(expectedInOutput)) { - passed = false; - reason = `Expected output to contain "${expectedInOutput}"`; - } - - if (passed) { - console.log(`${colors.GREEN}PASS: ${testName}${colors.NC}`); - testsPassed++; - } else { - console.log(`${colors.RED}FAIL: ${testName}${colors.NC}`); - console.log(`${colors.RED}Reason: ${reason}${colors.NC}`); - console.log(`${colors.RED}Exit code: ${code}${colors.NC}`); - console.log(`${colors.RED}Output: ${output}${colors.NC}`); - testsFailed++; - } - - resolve(); - }); - - child.on("error", (error) => { - console.log( - `${colors.RED}ERROR: ${testName} - ${error.message}${colors.NC}`, - ); - testsFailed++; - resolve(); - }); - }); -} - -async function runHeaderIntegrationTests() { - console.log( - `${colors.YELLOW}=== MCP Inspector CLI Header Integration Tests ===${colors.NC}`, - ); - console.log( - `${colors.BLUE}Testing header parsing and validation${colors.NC}`, - ); - - // Test 1: Valid header format should parse successfully (connection will fail) - await runHeaderTest( - "Valid single header", - [ - "https://example.com", - "--method", - "tools/list", - "--transport", - "http", - "--header", - "Authorization: Bearer token123", - ], - false, - ); - - // Test 2: Multiple headers should parse successfully - await runHeaderTest( - "Multiple headers", - [ - "https://example.com", - "--method", - "tools/list", - "--transport", - "http", - "--header", - "Authorization: Bearer token123", - "--header", - "X-API-Key: secret123", - ], - false, - ); - - // Test 3: Invalid header format - no colon - await runHeaderTest( - "Invalid header format - no colon", - [ - "https://example.com", - "--method", - "tools/list", - "--transport", - "http", - "--header", - "InvalidHeader", - ], - false, - "Invalid header format", - ); - - // Test 4: Invalid header format - empty name - await runHeaderTest( - "Invalid header format - empty name", - [ - "https://example.com", - "--method", - "tools/list", - "--transport", - "http", - "--header", - ": value", - ], - false, - "Invalid header format", - ); - - // Test 5: Invalid header format - empty value - await runHeaderTest( - "Invalid header format - empty value", - [ - "https://example.com", - "--method", - "tools/list", - "--transport", - "http", - "--header", - "Header:", - ], - false, - "Invalid header format", - ); - - // Test 6: Header with colons in value - await runHeaderTest( - "Header with colons in value", - [ - "https://example.com", - "--method", - "tools/list", - "--transport", - "http", - "--header", - "X-Time: 2023:12:25:10:30:45", - ], - false, - ); - - // Test 7: Whitespace handling - await runHeaderTest( - "Whitespace handling in headers", - [ - "https://example.com", - "--method", - "tools/list", - "--transport", - "http", - "--header", - " X-Header : value with spaces ", - ], - false, - ); - - console.log(`\n${colors.YELLOW}=== Test Results ===${colors.NC}`); - console.log(`${colors.GREEN}Tests passed: ${testsPassed}${colors.NC}`); - console.log(`${colors.RED}Tests failed: ${testsFailed}${colors.NC}`); - - if (testsFailed === 0) { - console.log( - `${colors.GREEN}All header integration tests passed!${colors.NC}`, - ); - process.exit(0); - } else { - console.log( - `${colors.RED}Some header integration tests failed.${colors.NC}`, - ); - process.exit(1); - } -} - -// Handle graceful shutdown -process.on("SIGINT", () => { - console.log(`\n${colors.YELLOW}Test interrupted by user${colors.NC}`); - process.exit(1); -}); - -process.on("SIGTERM", () => { - console.log(`\n${colors.YELLOW}Test terminated${colors.NC}`); - process.exit(1); -}); - -// Run the tests -runHeaderIntegrationTests().catch((error) => { - console.error(`${colors.RED}Test runner error: ${error.message}${colors.NC}`); - process.exit(1); -}); diff --git a/cli/scripts/cli-metadata-tests.js b/cli/scripts/cli-metadata-tests.js deleted file mode 100755 index eaddc3577..000000000 --- a/cli/scripts/cli-metadata-tests.js +++ /dev/null @@ -1,676 +0,0 @@ -#!/usr/bin/env node - -// Colors for output -const colors = { - GREEN: "\x1b[32m", - YELLOW: "\x1b[33m", - RED: "\x1b[31m", - BLUE: "\x1b[34m", - ORANGE: "\x1b[33m", - NC: "\x1b[0m", // No Color -}; - -import fs from "fs"; -import path from "path"; -import { spawn } from "child_process"; -import os from "os"; -import { fileURLToPath } from "url"; - -// Get directory paths with ESM compatibility -const __filename = fileURLToPath(import.meta.url); -const __dirname = path.dirname(__filename); - -// Track test results -let PASSED_TESTS = 0; -let FAILED_TESTS = 0; -let SKIPPED_TESTS = 0; -let TOTAL_TESTS = 0; - -console.log( - `${colors.YELLOW}=== MCP Inspector CLI Metadata Tests ===${colors.NC}`, -); -console.log( - `${colors.BLUE}This script tests the MCP Inspector CLI's metadata functionality:${colors.NC}`, -); -console.log( - `${colors.BLUE}- General metadata with --metadata option${colors.NC}`, -); -console.log( - `${colors.BLUE}- Tool-specific metadata with --tool-metadata option${colors.NC}`, -); -console.log( - `${colors.BLUE}- Metadata parsing with various data types${colors.NC}`, -); -console.log( - `${colors.BLUE}- Metadata merging (tool-specific overrides general)${colors.NC}`, -); -console.log( - `${colors.BLUE}- Metadata evaluation in different MCP methods${colors.NC}`, -); -console.log(`\n`); - -// Get directory paths -const SCRIPTS_DIR = __dirname; -const PROJECT_ROOT = path.join(SCRIPTS_DIR, "../../"); -const BUILD_DIR = path.resolve(SCRIPTS_DIR, "../build"); - -// Define the test server command using npx -const TEST_CMD = "npx"; -const TEST_ARGS = ["@modelcontextprotocol/server-everything@2026.1.14"]; - -// Create output directory for test results -const OUTPUT_DIR = path.join(SCRIPTS_DIR, "metadata-test-output"); -if (!fs.existsSync(OUTPUT_DIR)) { - fs.mkdirSync(OUTPUT_DIR, { recursive: true }); -} - -// Create a temporary directory for test files -const TEMP_DIR = path.join(os.tmpdir(), "mcp-inspector-metadata-tests"); -fs.mkdirSync(TEMP_DIR, { recursive: true }); - -// Track servers for cleanup -let runningServers = []; - -process.on("exit", () => { - try { - fs.rmSync(TEMP_DIR, { recursive: true, force: true }); - } catch (err) { - console.error( - `${colors.RED}Failed to remove temp directory: ${err.message}${colors.NC}`, - ); - } - - runningServers.forEach((server) => { - try { - process.kill(-server.pid); - } catch (e) {} - }); -}); - -process.on("SIGINT", () => { - runningServers.forEach((server) => { - try { - process.kill(-server.pid); - } catch (e) {} - }); - process.exit(1); -}); - -// Function to run a basic test -async function runBasicTest(testName, ...args) { - const outputFile = path.join( - OUTPUT_DIR, - `${testName.replace(/\//g, "_")}.log`, - ); - - console.log(`\n${colors.YELLOW}Testing: ${testName}${colors.NC}`); - TOTAL_TESTS++; - - // Run the command and capture output - console.log( - `${colors.BLUE}Command: node ${BUILD_DIR}/cli.js ${args.join(" ")}${colors.NC}`, - ); - - try { - // Create a write stream for the output file - const outputStream = fs.createWriteStream(outputFile); - - // Spawn the process - return new Promise((resolve) => { - const child = spawn("node", [path.join(BUILD_DIR, "cli.js"), ...args], { - stdio: ["ignore", "pipe", "pipe"], - }); - - const timeout = setTimeout(() => { - console.log(`${colors.YELLOW}Test timed out: ${testName}${colors.NC}`); - child.kill(); - }, 15000); - - // Pipe stdout and stderr to the output file - child.stdout.pipe(outputStream); - child.stderr.pipe(outputStream); - - // Also capture output for display - let output = ""; - child.stdout.on("data", (data) => { - output += data.toString(); - }); - child.stderr.on("data", (data) => { - output += data.toString(); - }); - - child.on("close", (code) => { - clearTimeout(timeout); - outputStream.end(); - - // Check if we got valid JSON output (indicating success) even if process didn't exit cleanly - const hasValidJsonOutput = - output.includes('"tools"') || - output.includes('"resources"') || - output.includes('"prompts"') || - output.includes('"content"') || - output.includes('"messages"') || - output.includes('"contents"'); - - if (code === 0 || hasValidJsonOutput) { - console.log(`${colors.GREEN}✓ Test passed: ${testName}${colors.NC}`); - console.log(`${colors.BLUE}First few lines of output:${colors.NC}`); - const firstFewLines = output - .split("\n") - .slice(0, 5) - .map((line) => ` ${line}`) - .join("\n"); - console.log(firstFewLines); - PASSED_TESTS++; - resolve(true); - } else { - console.log(`${colors.RED}✗ Test failed: ${testName}${colors.NC}`); - console.log(`${colors.RED}Error output:${colors.NC}`); - console.log( - output - .split("\n") - .map((line) => ` ${line}`) - .join("\n"), - ); - FAILED_TESTS++; - - // Stop after any error is encountered - console.log( - `${colors.YELLOW}Stopping tests due to error. Please validate and fix before continuing.${colors.NC}`, - ); - process.exit(1); - } - }); - }); - } catch (error) { - console.error( - `${colors.RED}Error running test: ${error.message}${colors.NC}`, - ); - FAILED_TESTS++; - process.exit(1); - } -} - -// Function to run an error test (expected to fail) -async function runErrorTest(testName, ...args) { - const outputFile = path.join( - OUTPUT_DIR, - `${testName.replace(/\//g, "_")}.log`, - ); - - console.log(`\n${colors.YELLOW}Testing error case: ${testName}${colors.NC}`); - TOTAL_TESTS++; - - // Run the command and capture output - console.log( - `${colors.BLUE}Command: node ${BUILD_DIR}/cli.js ${args.join(" ")}${colors.NC}`, - ); - - try { - // Create a write stream for the output file - const outputStream = fs.createWriteStream(outputFile); - - // Spawn the process - return new Promise((resolve) => { - const child = spawn("node", [path.join(BUILD_DIR, "cli.js"), ...args], { - stdio: ["ignore", "pipe", "pipe"], - }); - - const timeout = setTimeout(() => { - console.log( - `${colors.YELLOW}Error test timed out: ${testName}${colors.NC}`, - ); - child.kill(); - }, 15000); - - // Pipe stdout and stderr to the output file - child.stdout.pipe(outputStream); - child.stderr.pipe(outputStream); - - // Also capture output for display - let output = ""; - child.stdout.on("data", (data) => { - output += data.toString(); - }); - child.stderr.on("data", (data) => { - output += data.toString(); - }); - - child.on("close", (code) => { - clearTimeout(timeout); - outputStream.end(); - - // For error tests, we expect a non-zero exit code - if (code !== 0) { - console.log( - `${colors.GREEN}✓ Error test passed: ${testName}${colors.NC}`, - ); - console.log(`${colors.BLUE}Error output (expected):${colors.NC}`); - const firstFewLines = output - .split("\n") - .slice(0, 5) - .map((line) => ` ${line}`) - .join("\n"); - console.log(firstFewLines); - PASSED_TESTS++; - resolve(true); - } else { - console.log( - `${colors.RED}✗ Error test failed: ${testName} (expected error but got success)${colors.NC}`, - ); - console.log(`${colors.RED}Output:${colors.NC}`); - console.log( - output - .split("\n") - .map((line) => ` ${line}`) - .join("\n"), - ); - FAILED_TESTS++; - - // Stop after any error is encountered - console.log( - `${colors.YELLOW}Stopping tests due to error. Please validate and fix before continuing.${colors.NC}`, - ); - process.exit(1); - } - }); - }); - } catch (error) { - console.error( - `${colors.RED}Error running test: ${error.message}${colors.NC}`, - ); - FAILED_TESTS++; - process.exit(1); - } -} - -// Run all tests -async function runTests() { - console.log( - `\n${colors.YELLOW}=== Running General Metadata Tests ===${colors.NC}`, - ); - - // Test 1: General metadata with tools/list - await runBasicTest( - "metadata_tools_list", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - "client=test-client", - ); - - // Test 2: General metadata with resources/list - await runBasicTest( - "metadata_resources_list", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "resources/list", - "--metadata", - "client=test-client", - ); - - // Test 3: General metadata with prompts/list - await runBasicTest( - "metadata_prompts_list", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "prompts/list", - "--metadata", - "client=test-client", - ); - - // Test 4: General metadata with resources/read - await runBasicTest( - "metadata_resources_read", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "resources/read", - "--uri", - "demo://resource/static/document/architecture.md", - "--metadata", - "client=test-client", - ); - - // Test 5: General metadata with prompts/get - await runBasicTest( - "metadata_prompts_get", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "prompts/get", - "--prompt-name", - "simple-prompt", - "--metadata", - "client=test-client", - ); - - console.log( - `\n${colors.YELLOW}=== Running Tool-Specific Metadata Tests ===${colors.NC}`, - ); - - // Test 6: Tool-specific metadata with tools/call - await runBasicTest( - "metadata_tools_call_tool_meta", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=hello world", - "--tool-metadata", - "client=test-client", - ); - - // Test 7: Tool-specific metadata with complex tool - await runBasicTest( - "metadata_tools_call_complex_tool_meta", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "get-sum", - "--tool-arg", - "a=10", - "b=20", - "--tool-metadata", - "client=test-client", - ); - - console.log( - `\n${colors.YELLOW}=== Running Metadata Merging Tests ===${colors.NC}`, - ); - - // Test 8: General metadata + tool-specific metadata (tool-specific should override) - await runBasicTest( - "metadata_merging_general_and_tool", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=hello world", - "--metadata", - "client=general-client", - "--tool-metadata", - "client=test-client", - ); - - console.log( - `\n${colors.YELLOW}=== Running Metadata Parsing Tests ===${colors.NC}`, - ); - - // Test 10: Metadata with numeric values (should be converted to strings) - await runBasicTest( - "metadata_parsing_numbers", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - "integer_value=42", - "decimal_value=3.14159", - "negative_value=-10", - ); - - // Test 11: Metadata with JSON values (should be converted to strings) - await runBasicTest( - "metadata_parsing_json", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - 'json_object="{\\"key\\":\\"value\\"}"', - 'json_array="[1,2,3]"', - 'json_string="\\"quoted\\""', - ); - - // Test 12: Metadata with special characters - await runBasicTest( - "metadata_parsing_special_chars", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - "unicode=🚀🎉✨", - "special_chars=!@#$%^&*()", - "spaces=hello world with spaces", - ); - - console.log( - `\n${colors.YELLOW}=== Running Metadata Edge Cases ===${colors.NC}`, - ); - - // Test 13: Single metadata entry - await runBasicTest( - "metadata_single_entry", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - "single_key=single_value", - ); - - // Test 14: Many metadata entries - await runBasicTest( - "metadata_many_entries", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - "key1=value1", - "key2=value2", - "key3=value3", - "key4=value4", - "key5=value5", - ); - - console.log( - `\n${colors.YELLOW}=== Running Metadata Error Cases ===${colors.NC}`, - ); - - // Test 15: Invalid metadata format (missing equals) - await runErrorTest( - "metadata_error_invalid_format", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - "invalid_format_no_equals", - ); - - // Test 16: Invalid tool-meta format (missing equals) - await runErrorTest( - "metadata_error_invalid_tool_meta_format", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=test", - "--tool-metadata", - "invalid_format_no_equals", - ); - - console.log( - `\n${colors.YELLOW}=== Running Metadata Impact Tests ===${colors.NC}`, - ); - - // Test 17: Test tool-specific metadata vs general metadata precedence - await runBasicTest( - "metadata_precedence_tool_overrides_general", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=precedence test", - "--metadata", - "client=general-client", - "--tool-metadata", - "client=tool-specific-client", - ); - - // Test 18: Test metadata with resources methods - await runBasicTest( - "metadata_resources_methods", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "resources/list", - "--metadata", - "resource_client=test-resource-client", - ); - - // Test 19: Test metadata with prompts methods - await runBasicTest( - "metadata_prompts_methods", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "prompts/get", - "--prompt-name", - "simple-prompt", - "--metadata", - "prompt_client=test-prompt-client", - ); - - console.log( - `\n${colors.YELLOW}=== Running Metadata Validation Tests ===${colors.NC}`, - ); - - // Test 20: Test metadata with special characters in keys - await runBasicTest( - "metadata_special_key_characters", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=special keys test", - "--metadata", - "key-with-dashes=value1", - "key_with_underscores=value2", - "key.with.dots=value3", - ); - - console.log( - `\n${colors.YELLOW}=== Running Metadata Integration Tests ===${colors.NC}`, - ); - - // Test 21: Metadata with all MCP methods - await runBasicTest( - "metadata_integration_all_methods", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - "integration_test=true", - "test_phase=all_methods", - ); - - // Test 22: Complex metadata scenario - await runBasicTest( - "metadata_complex_scenario", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=complex test", - "--metadata", - "session_id=12345", - "user_id=67890", - "timestamp=2024-01-01T00:00:00Z", - "request_id=req-abc-123", - "--tool-metadata", - "tool_session=session-xyz-789", - "execution_context=test", - "priority=high", - ); - - // Test 23: Metadata parsing validation test - await runBasicTest( - "metadata_parsing_validation", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=parsing validation test", - "--metadata", - "valid_key=valid_value", - "numeric_key=123", - "boolean_key=true", - 'json_key=\'{"test":"value"}\'', - "special_key=!@#$%^&*()", - "unicode_key=🚀🎉✨", - ); - - // Print test summary - console.log(`\n${colors.YELLOW}=== Test Summary ===${colors.NC}`); - console.log(`${colors.GREEN}Passed: ${PASSED_TESTS}${colors.NC}`); - console.log(`${colors.RED}Failed: ${FAILED_TESTS}${colors.NC}`); - console.log(`${colors.ORANGE}Skipped: ${SKIPPED_TESTS}${colors.NC}`); - console.log(`Total: ${TOTAL_TESTS}`); - console.log( - `${colors.BLUE}Detailed logs saved to: ${OUTPUT_DIR}${colors.NC}`, - ); - - console.log(`\n${colors.GREEN}All metadata tests completed!${colors.NC}`); -} - -// Run all tests -runTests().catch((error) => { - console.error( - `${colors.RED}Tests failed with error: ${error.message}${colors.NC}`, - ); - process.exit(1); -}); diff --git a/cli/scripts/cli-tests.js b/cli/scripts/cli-tests.js deleted file mode 100755 index 38f57bb24..000000000 --- a/cli/scripts/cli-tests.js +++ /dev/null @@ -1,932 +0,0 @@ -#!/usr/bin/env node - -// Colors for output -const colors = { - GREEN: "\x1b[32m", - YELLOW: "\x1b[33m", - RED: "\x1b[31m", - BLUE: "\x1b[34m", - ORANGE: "\x1b[33m", - NC: "\x1b[0m", // No Color -}; - -import fs from "fs"; -import path from "path"; -import { spawn } from "child_process"; -import os from "os"; -import { fileURLToPath } from "url"; - -// Get directory paths with ESM compatibility -const __filename = fileURLToPath(import.meta.url); -const __dirname = path.dirname(__filename); - -// Track test results -let PASSED_TESTS = 0; -let FAILED_TESTS = 0; -let SKIPPED_TESTS = 0; -let TOTAL_TESTS = 0; - -console.log( - `${colors.YELLOW}=== MCP Inspector CLI Test Script ===${colors.NC}`, -); -console.log( - `${colors.BLUE}This script tests the MCP Inspector CLI's ability to handle various command line options:${colors.NC}`, -); -console.log(`${colors.BLUE}- Basic CLI mode${colors.NC}`); -console.log(`${colors.BLUE}- Environment variables (-e)${colors.NC}`); -console.log(`${colors.BLUE}- Config file (--config)${colors.NC}`); -console.log(`${colors.BLUE}- Server selection (--server)${colors.NC}`); -console.log(`${colors.BLUE}- Method selection (--method)${colors.NC}`); -console.log(`${colors.BLUE}- Resource-related options (--uri)${colors.NC}`); -console.log( - `${colors.BLUE}- Prompt-related options (--prompt-name, --prompt-args)${colors.NC}`, -); -console.log(`${colors.BLUE}- Logging options (--log-level)${colors.NC}`); -console.log( - `${colors.BLUE}- Transport types (--transport http/sse/stdio)${colors.NC}`, -); -console.log( - `${colors.BLUE}- Transport inference from URL suffixes (/mcp, /sse)${colors.NC}`, -); -console.log(`\n`); - -// Get directory paths -const SCRIPTS_DIR = __dirname; -const PROJECT_ROOT = path.join(SCRIPTS_DIR, "../../"); -const BUILD_DIR = path.resolve(SCRIPTS_DIR, "../build"); - -// Define the test server command using npx -const EVERYTHING_SERVER = "@modelcontextprotocol/server-everything@2026.1.14"; -const TEST_CMD = "npx"; -const TEST_ARGS = [EVERYTHING_SERVER]; - -// Create output directory for test results -const OUTPUT_DIR = path.join(SCRIPTS_DIR, "test-output"); -if (!fs.existsSync(OUTPUT_DIR)) { - fs.mkdirSync(OUTPUT_DIR, { recursive: true }); -} - -// Create a temporary directory for test files -const TEMP_DIR = path.join(os.tmpdir(), "mcp-inspector-tests"); -fs.mkdirSync(TEMP_DIR, { recursive: true }); - -// Track servers for cleanup -let runningServers = []; - -process.on("exit", () => { - try { - fs.rmSync(TEMP_DIR, { recursive: true, force: true }); - } catch (err) { - console.error( - `${colors.RED}Failed to remove temp directory: ${err.message}${colors.NC}`, - ); - } - - runningServers.forEach((server) => { - try { - process.kill(-server.pid); - } catch (e) {} - }); -}); - -process.on("SIGINT", () => { - runningServers.forEach((server) => { - try { - process.kill(-server.pid); - } catch (e) {} - }); - process.exit(1); -}); - -// Use the existing sample config file -console.log( - `${colors.BLUE}Using existing sample config file: ${PROJECT_ROOT}/sample-config.json${colors.NC}`, -); -try { - const sampleConfig = fs.readFileSync( - path.join(PROJECT_ROOT, "sample-config.json"), - "utf8", - ); - console.log(sampleConfig); -} catch (error) { - console.error( - `${colors.RED}Error reading sample config: ${error.message}${colors.NC}`, - ); -} - -// Create an invalid config file for testing -const invalidConfigPath = path.join(TEMP_DIR, "invalid-config.json"); -fs.writeFileSync(invalidConfigPath, '{\n "mcpServers": {\n "invalid": {'); - -// Create config files with different transport types for testing -const sseConfigPath = path.join(TEMP_DIR, "sse-config.json"); -fs.writeFileSync( - sseConfigPath, - JSON.stringify( - { - mcpServers: { - "test-sse": { - type: "sse", - url: "http://localhost:3000/sse", - note: "Test SSE server", - }, - }, - }, - null, - 2, - ), -); - -const httpConfigPath = path.join(TEMP_DIR, "http-config.json"); -fs.writeFileSync( - httpConfigPath, - JSON.stringify( - { - mcpServers: { - "test-http": { - type: "streamable-http", - url: "http://localhost:3000/mcp", - note: "Test HTTP server", - }, - }, - }, - null, - 2, - ), -); - -const stdioConfigPath = path.join(TEMP_DIR, "stdio-config.json"); -fs.writeFileSync( - stdioConfigPath, - JSON.stringify( - { - mcpServers: { - "test-stdio": { - type: "stdio", - command: "npx", - args: [EVERYTHING_SERVER], - env: { - TEST_ENV: "test-value", - }, - }, - }, - }, - null, - 2, - ), -); - -// Config without type field (backward compatibility) -const legacyConfigPath = path.join(TEMP_DIR, "legacy-config.json"); -fs.writeFileSync( - legacyConfigPath, - JSON.stringify( - { - mcpServers: { - "test-legacy": { - command: "npx", - args: [EVERYTHING_SERVER], - env: { - LEGACY_ENV: "legacy-value", - }, - }, - }, - }, - null, - 2, - ), -); - -// Function to run a basic test -async function runBasicTest(testName, ...args) { - const outputFile = path.join( - OUTPUT_DIR, - `${testName.replace(/\//g, "_")}.log`, - ); - - console.log(`\n${colors.YELLOW}Testing: ${testName}${colors.NC}`); - TOTAL_TESTS++; - - // Run the command and capture output - console.log( - `${colors.BLUE}Command: node ${BUILD_DIR}/cli.js ${args.join(" ")}${colors.NC}`, - ); - - try { - // Create a write stream for the output file - const outputStream = fs.createWriteStream(outputFile); - - // Spawn the process - return new Promise((resolve) => { - const child = spawn("node", [path.join(BUILD_DIR, "cli.js"), ...args], { - stdio: ["ignore", "pipe", "pipe"], - }); - - const timeout = setTimeout(() => { - console.log(`${colors.YELLOW}Test timed out: ${testName}${colors.NC}`); - child.kill(); - }, 10000); - - // Pipe stdout and stderr to the output file - child.stdout.pipe(outputStream); - child.stderr.pipe(outputStream); - - // Also capture output for display - let output = ""; - child.stdout.on("data", (data) => { - output += data.toString(); - }); - child.stderr.on("data", (data) => { - output += data.toString(); - }); - - child.on("close", (code) => { - clearTimeout(timeout); - outputStream.end(); - - if (code === 0) { - console.log(`${colors.GREEN}✓ Test passed: ${testName}${colors.NC}`); - console.log(`${colors.BLUE}First few lines of output:${colors.NC}`); - const firstFewLines = output - .split("\n") - .slice(0, 5) - .map((line) => ` ${line}`) - .join("\n"); - console.log(firstFewLines); - PASSED_TESTS++; - resolve(true); - } else { - console.log(`${colors.RED}✗ Test failed: ${testName}${colors.NC}`); - console.log(`${colors.RED}Error output:${colors.NC}`); - console.log( - output - .split("\n") - .map((line) => ` ${line}`) - .join("\n"), - ); - FAILED_TESTS++; - - // Stop after any error is encountered - console.log( - `${colors.YELLOW}Stopping tests due to error. Please validate and fix before continuing.${colors.NC}`, - ); - process.exit(1); - } - }); - }); - } catch (error) { - console.error( - `${colors.RED}Error running test: ${error.message}${colors.NC}`, - ); - FAILED_TESTS++; - process.exit(1); - } -} - -// Function to run an error test (expected to fail) -async function runErrorTest(testName, ...args) { - const outputFile = path.join( - OUTPUT_DIR, - `${testName.replace(/\//g, "_")}.log`, - ); - - console.log(`\n${colors.YELLOW}Testing error case: ${testName}${colors.NC}`); - TOTAL_TESTS++; - - // Run the command and capture output - console.log( - `${colors.BLUE}Command: node ${BUILD_DIR}/cli.js ${args.join(" ")}${colors.NC}`, - ); - - try { - // Create a write stream for the output file - const outputStream = fs.createWriteStream(outputFile); - - // Spawn the process - return new Promise((resolve) => { - const child = spawn("node", [path.join(BUILD_DIR, "cli.js"), ...args], { - stdio: ["ignore", "pipe", "pipe"], - }); - - const timeout = setTimeout(() => { - console.log( - `${colors.YELLOW}Error test timed out: ${testName}${colors.NC}`, - ); - child.kill(); - }, 10000); - - // Pipe stdout and stderr to the output file - child.stdout.pipe(outputStream); - child.stderr.pipe(outputStream); - - // Also capture output for display - let output = ""; - child.stdout.on("data", (data) => { - output += data.toString(); - }); - child.stderr.on("data", (data) => { - output += data.toString(); - }); - - child.on("close", (code) => { - clearTimeout(timeout); - outputStream.end(); - - // For error tests, we expect a non-zero exit code - if (code !== 0) { - console.log( - `${colors.GREEN}✓ Error test passed: ${testName}${colors.NC}`, - ); - console.log(`${colors.BLUE}Error output (expected):${colors.NC}`); - const firstFewLines = output - .split("\n") - .slice(0, 5) - .map((line) => ` ${line}`) - .join("\n"); - console.log(firstFewLines); - PASSED_TESTS++; - resolve(true); - } else { - console.log( - `${colors.RED}✗ Error test failed: ${testName} (expected error but got success)${colors.NC}`, - ); - console.log(`${colors.RED}Output:${colors.NC}`); - console.log( - output - .split("\n") - .map((line) => ` ${line}`) - .join("\n"), - ); - FAILED_TESTS++; - - // Stop after any error is encountered - console.log( - `${colors.YELLOW}Stopping tests due to error. Please validate and fix before continuing.${colors.NC}`, - ); - process.exit(1); - } - }); - }); - } catch (error) { - console.error( - `${colors.RED}Error running test: ${error.message}${colors.NC}`, - ); - FAILED_TESTS++; - process.exit(1); - } -} - -// Run all tests -async function runTests() { - console.log( - `\n${colors.YELLOW}=== Running Basic CLI Mode Tests ===${colors.NC}`, - ); - - // Test 1: Basic CLI mode with method - await runBasicTest( - "basic_cli_mode", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - ); - - // Test 2: CLI mode with non-existent method (should fail) - await runErrorTest( - "nonexistent_method", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "nonexistent/method", - ); - - // Test 3: CLI mode without method (should fail) - await runErrorTest("missing_method", TEST_CMD, ...TEST_ARGS, "--cli"); - - console.log( - `\n${colors.YELLOW}=== Running Environment Variable Tests ===${colors.NC}`, - ); - - // Test 4: CLI mode with environment variables - await runBasicTest( - "env_variables", - TEST_CMD, - ...TEST_ARGS, - "-e", - "KEY1=value1", - "-e", - "KEY2=value2", - "--cli", - "--method", - "tools/list", - ); - - // Test 5: CLI mode with invalid environment variable format (should fail) - await runErrorTest( - "invalid_env_format", - TEST_CMD, - ...TEST_ARGS, - "-e", - "INVALID_FORMAT", - "--cli", - "--method", - "tools/list", - ); - - // Test 5b: CLI mode with environment variable containing equals sign in value - await runBasicTest( - "env_variable_with_equals", - TEST_CMD, - ...TEST_ARGS, - "-e", - "API_KEY=abc123=xyz789==", - "--cli", - "--method", - "tools/list", - ); - - // Test 5c: CLI mode with environment variable containing base64-encoded value - await runBasicTest( - "env_variable_with_base64", - TEST_CMD, - ...TEST_ARGS, - "-e", - "JWT_TOKEN=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0=", - "--cli", - "--method", - "tools/list", - ); - - console.log( - `\n${colors.YELLOW}=== Running Config File Tests ===${colors.NC}`, - ); - - // Test 6: Using config file with CLI mode - await runBasicTest( - "config_file", - "--config", - path.join(PROJECT_ROOT, "sample-config.json"), - "--server", - "everything", - "--cli", - "--method", - "tools/list", - ); - - // Test 7: Using config file without server name (should fail) - await runErrorTest( - "config_without_server", - "--config", - path.join(PROJECT_ROOT, "sample-config.json"), - "--cli", - "--method", - "tools/list", - ); - - // Test 8: Using server name without config file (should fail) - await runErrorTest( - "server_without_config", - "--server", - "everything", - "--cli", - "--method", - "tools/list", - ); - - // Test 9: Using non-existent config file (should fail) - await runErrorTest( - "nonexistent_config", - "--config", - "./nonexistent-config.json", - "--server", - "everything", - "--cli", - "--method", - "tools/list", - ); - - // Test 10: Using invalid config file format (should fail) - await runErrorTest( - "invalid_config", - "--config", - invalidConfigPath, - "--server", - "everything", - "--cli", - "--method", - "tools/list", - ); - - // Test 11: Using config file with non-existent server (should fail) - await runErrorTest( - "nonexistent_server", - "--config", - path.join(PROJECT_ROOT, "sample-config.json"), - "--server", - "nonexistent", - "--cli", - "--method", - "tools/list", - ); - - console.log( - `\n${colors.YELLOW}=== Running Resource-Related Tests ===${colors.NC}`, - ); - - // Test 16: CLI mode with resource read - await runBasicTest( - "resource_read", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "resources/read", - "--uri", - "demo://resource/static/document/architecture.md", - ); - - // Test 17: CLI mode with resource read but missing URI (should fail) - await runErrorTest( - "missing_uri", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "resources/read", - ); - - console.log( - `\n${colors.YELLOW}=== Running Prompt-Related Tests ===${colors.NC}`, - ); - - // Test 18: CLI mode with prompt get - await runBasicTest( - "prompt_get", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "prompts/get", - "--prompt-name", - "simple-prompt", - ); - - // Test 19: CLI mode with prompt get and args - await runBasicTest( - "prompt_get_with_args", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "prompts/get", - "--prompt-name", - "args-prompt", - "--prompt-args", - "city=New York", - "state=NY", - ); - - // Test 20: CLI mode with prompt get but missing prompt name (should fail) - await runErrorTest( - "missing_prompt_name", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "prompts/get", - ); - - console.log(`\n${colors.YELLOW}=== Running Logging Tests ===${colors.NC}`); - - // Test 21: CLI mode with log level - await runBasicTest( - "log_level", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "logging/setLevel", - "--log-level", - "debug", - ); - - // Test 22: CLI mode with invalid log level (should fail) - await runErrorTest( - "invalid_log_level", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "logging/setLevel", - "--log-level", - "invalid", - ); - - console.log( - `\n${colors.YELLOW}=== Running Combined Option Tests ===${colors.NC}`, - ); - - // Note about the combined options issue - console.log( - `${colors.BLUE}Testing combined options with environment variables and config file.${colors.NC}`, - ); - - // Test 23: CLI mode with config file, environment variables, and tool call - await runBasicTest( - "combined_options", - "--config", - path.join(PROJECT_ROOT, "sample-config.json"), - "--server", - "everything", - "-e", - "CLI_ENV_VAR=cli_value", - "--cli", - "--method", - "tools/list", - ); - - // Test 24: CLI mode with all possible options (that make sense together) - await runBasicTest( - "all_options", - "--config", - path.join(PROJECT_ROOT, "sample-config.json"), - "--server", - "everything", - "-e", - "CLI_ENV_VAR=cli_value", - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=Hello", - "--log-level", - "debug", - ); - - console.log( - `\n${colors.YELLOW}=== Running Config Transport Type Tests ===${colors.NC}`, - ); - - // Test 25: Config with stdio transport type - await runBasicTest( - "config_stdio_type", - "--config", - stdioConfigPath, - "--server", - "test-stdio", - "--cli", - "--method", - "tools/list", - ); - - // Test 26: Config with SSE transport type (CLI mode) - expects connection error - await runErrorTest( - "config_sse_type_cli", - "--config", - sseConfigPath, - "--server", - "test-sse", - "--cli", - "--method", - "tools/list", - ); - - // Test 27: Config with streamable-http transport type (CLI mode) - expects connection error - await runErrorTest( - "config_http_type_cli", - "--config", - httpConfigPath, - "--server", - "test-http", - "--cli", - "--method", - "tools/list", - ); - - // Test 28: Legacy config without type field (backward compatibility) - await runBasicTest( - "config_legacy_no_type", - "--config", - legacyConfigPath, - "--server", - "test-legacy", - "--cli", - "--method", - "tools/list", - ); - - console.log( - `\n${colors.YELLOW}=== Running Default Server Tests ===${colors.NC}`, - ); - - // Create config with single server for auto-selection - const singleServerConfigPath = path.join( - TEMP_DIR, - "single-server-config.json", - ); - fs.writeFileSync( - singleServerConfigPath, - JSON.stringify( - { - mcpServers: { - "only-server": { - command: "npx", - args: [EVERYTHING_SERVER], - }, - }, - }, - null, - 2, - ), - ); - - // Create config with default-server - const defaultServerConfigPath = path.join( - TEMP_DIR, - "default-server-config.json", - ); - fs.writeFileSync( - defaultServerConfigPath, - JSON.stringify( - { - mcpServers: { - "default-server": { - command: "npx", - args: [EVERYTHING_SERVER], - }, - "other-server": { - command: "node", - args: ["other.js"], - }, - }, - }, - null, - 2, - ), - ); - - // Create config with multiple servers (no default) - const multiServerConfigPath = path.join(TEMP_DIR, "multi-server-config.json"); - fs.writeFileSync( - multiServerConfigPath, - JSON.stringify( - { - mcpServers: { - server1: { - command: "npx", - args: [EVERYTHING_SERVER], - }, - server2: { - command: "node", - args: ["other.js"], - }, - }, - }, - null, - 2, - ), - ); - - // Test 29: Config with single server auto-selection - await runBasicTest( - "single_server_auto_select", - "--config", - singleServerConfigPath, - "--cli", - "--method", - "tools/list", - ); - - // Test 30: Config with default-server should now require explicit selection (multiple servers) - await runErrorTest( - "default_server_requires_explicit_selection", - "--config", - defaultServerConfigPath, - "--cli", - "--method", - "tools/list", - ); - - // Test 31: Config with multiple servers and no default (should fail) - await runErrorTest( - "multi_server_no_default", - "--config", - multiServerConfigPath, - "--cli", - "--method", - "tools/list", - ); - - console.log( - `\n${colors.YELLOW}=== Running HTTP Transport Tests ===${colors.NC}`, - ); - - console.log( - `${colors.BLUE}Starting server-everything in streamableHttp mode.${colors.NC}`, - ); - const httpServer = spawn("npx", [EVERYTHING_SERVER, "streamableHttp"], { - detached: true, - stdio: "ignore", - }); - runningServers.push(httpServer); - - await new Promise((resolve) => setTimeout(resolve, 3000)); - - // Test 32: HTTP transport inferred from URL ending with /mcp - await runBasicTest( - "http_transport_inferred", - "http://127.0.0.1:3001/mcp", - "--cli", - "--method", - "tools/list", - ); - - // Test 33: HTTP transport with explicit --transport http flag - await runBasicTest( - "http_transport_with_explicit_flag", - "http://127.0.0.1:3001/mcp", - "--transport", - "http", - "--cli", - "--method", - "tools/list", - ); - - // Test 34: HTTP transport with suffix and --transport http flag - await runBasicTest( - "http_transport_with_explicit_flag_and_suffix", - "http://127.0.0.1:3001/mcp", - "--transport", - "http", - "--cli", - "--method", - "tools/list", - ); - - // Test 35: SSE transport given to HTTP server (should fail) - await runErrorTest( - "sse_transport_given_to_http_server", - "http://127.0.0.1:3001", - "--transport", - "sse", - "--cli", - "--method", - "tools/list", - ); - - // Test 36: HTTP transport without URL (should fail) - await runErrorTest( - "http_transport_without_url", - "--transport", - "http", - "--cli", - "--method", - "tools/list", - ); - - // Test 37: SSE transport without URL (should fail) - await runErrorTest( - "sse_transport_without_url", - "--transport", - "sse", - "--cli", - "--method", - "tools/list", - ); - - // Kill HTTP server - try { - process.kill(-httpServer.pid); - console.log( - `${colors.BLUE}HTTP server killed, waiting for port to be released...${colors.NC}`, - ); - } catch (e) { - console.log( - `${colors.RED}Error killing HTTP server: ${e.message}${colors.NC}`, - ); - } - - // Print test summary - console.log(`\n${colors.YELLOW}=== Test Summary ===${colors.NC}`); - console.log(`${colors.GREEN}Passed: ${PASSED_TESTS}${colors.NC}`); - console.log(`${colors.RED}Failed: ${FAILED_TESTS}${colors.NC}`); - console.log(`${colors.ORANGE}Skipped: ${SKIPPED_TESTS}${colors.NC}`); - console.log(`Total: ${TOTAL_TESTS}`); - console.log( - `${colors.BLUE}Detailed logs saved to: ${OUTPUT_DIR}${colors.NC}`, - ); - - console.log(`\n${colors.GREEN}All tests completed!${colors.NC}`); -} - -// Run all tests -runTests().catch((error) => { - console.error( - `${colors.RED}Tests failed with error: ${error.message}${colors.NC}`, - ); - process.exit(1); -}); diff --git a/cli/scripts/cli-tool-tests.js b/cli/scripts/cli-tool-tests.js deleted file mode 100644 index 30b5a2e2f..000000000 --- a/cli/scripts/cli-tool-tests.js +++ /dev/null @@ -1,641 +0,0 @@ -#!/usr/bin/env node - -// Colors for output -const colors = { - GREEN: "\x1b[32m", - YELLOW: "\x1b[33m", - RED: "\x1b[31m", - BLUE: "\x1b[34m", - ORANGE: "\x1b[33m", - NC: "\x1b[0m", // No Color -}; - -import fs from "fs"; -import path from "path"; -import { spawn } from "child_process"; -import os from "os"; -import { fileURLToPath } from "url"; - -// Get directory paths with ESM compatibility -const __filename = fileURLToPath(import.meta.url); -const __dirname = path.dirname(__filename); - -// Track test results -let PASSED_TESTS = 0; -let FAILED_TESTS = 0; -let SKIPPED_TESTS = 0; -let TOTAL_TESTS = 0; - -console.log(`${colors.YELLOW}=== MCP Inspector CLI Tool Tests ===${colors.NC}`); -console.log( - `${colors.BLUE}This script tests the MCP Inspector CLI's tool-related functionality:${colors.NC}`, -); -console.log(`${colors.BLUE}- Tool discovery and listing${colors.NC}`); -console.log( - `${colors.BLUE}- JSON argument parsing (strings, numbers, booleans, objects, arrays)${colors.NC}`, -); -console.log(`${colors.BLUE}- Tool schema validation${colors.NC}`); -console.log( - `${colors.BLUE}- Tool execution with various argument types${colors.NC}`, -); -console.log( - `${colors.BLUE}- Error handling for invalid tools and arguments${colors.NC}`, -); -console.log(`\n`); - -// Get directory paths -const SCRIPTS_DIR = __dirname; -const PROJECT_ROOT = path.join(SCRIPTS_DIR, "../../"); -const BUILD_DIR = path.resolve(SCRIPTS_DIR, "../build"); - -// Define the test server command using npx -const TEST_CMD = "npx"; -const TEST_ARGS = ["@modelcontextprotocol/server-everything@2026.1.14"]; - -// Create output directory for test results -const OUTPUT_DIR = path.join(SCRIPTS_DIR, "tool-test-output"); -if (!fs.existsSync(OUTPUT_DIR)) { - fs.mkdirSync(OUTPUT_DIR, { recursive: true }); -} - -// Create a temporary directory for test files -const TEMP_DIR = path.join(os.tmpdir(), "mcp-inspector-tool-tests"); -fs.mkdirSync(TEMP_DIR, { recursive: true }); - -// Track servers for cleanup -let runningServers = []; - -process.on("exit", () => { - try { - fs.rmSync(TEMP_DIR, { recursive: true, force: true }); - } catch (err) { - console.error( - `${colors.RED}Failed to remove temp directory: ${err.message}${colors.NC}`, - ); - } - - runningServers.forEach((server) => { - try { - process.kill(-server.pid); - } catch (e) {} - }); -}); - -process.on("SIGINT", () => { - runningServers.forEach((server) => { - try { - process.kill(-server.pid); - } catch (e) {} - }); - process.exit(1); -}); - -// Function to run a basic test -async function runBasicTest(testName, ...args) { - const outputFile = path.join( - OUTPUT_DIR, - `${testName.replace(/\//g, "_")}.log`, - ); - - console.log(`\n${colors.YELLOW}Testing: ${testName}${colors.NC}`); - TOTAL_TESTS++; - - // Run the command and capture output - console.log( - `${colors.BLUE}Command: node ${BUILD_DIR}/cli.js ${args.join(" ")}${colors.NC}`, - ); - - try { - // Create a write stream for the output file - const outputStream = fs.createWriteStream(outputFile); - - // Spawn the process - return new Promise((resolve) => { - const child = spawn("node", [path.join(BUILD_DIR, "cli.js"), ...args], { - stdio: ["ignore", "pipe", "pipe"], - }); - - const timeout = setTimeout(() => { - console.log(`${colors.YELLOW}Test timed out: ${testName}${colors.NC}`); - child.kill(); - }, 10000); - - // Pipe stdout and stderr to the output file - child.stdout.pipe(outputStream); - child.stderr.pipe(outputStream); - - // Also capture output for display - let output = ""; - child.stdout.on("data", (data) => { - output += data.toString(); - }); - child.stderr.on("data", (data) => { - output += data.toString(); - }); - - child.on("close", (code) => { - clearTimeout(timeout); - outputStream.end(); - - // Check for JSON errors even if exit code is 0 - let hasJsonError = false; - if (code === 0) { - try { - const jsonMatch = output.match(/\{[\s\S]*\}/); - if (jsonMatch) { - const parsed = JSON.parse(jsonMatch[0]); - hasJsonError = parsed.isError === true; - } - } catch (e) { - // Not valid JSON or parse failed, continue with original check - } - } - - if (code === 0 && !hasJsonError) { - console.log(`${colors.GREEN}✓ Test passed: ${testName}${colors.NC}`); - console.log(`${colors.BLUE}First few lines of output:${colors.NC}`); - const firstFewLines = output - .split("\n") - .slice(0, 5) - .map((line) => ` ${line}`) - .join("\n"); - console.log(firstFewLines); - PASSED_TESTS++; - resolve(true); - } else { - console.log(`${colors.RED}✗ Test failed: ${testName}${colors.NC}`); - console.log(`${colors.RED}Error output:${colors.NC}`); - console.log( - output - .split("\n") - .map((line) => ` ${line}`) - .join("\n"), - ); - FAILED_TESTS++; - - // Stop after any error is encountered - console.log( - `${colors.YELLOW}Stopping tests due to error. Please validate and fix before continuing.${colors.NC}`, - ); - process.exit(1); - } - }); - }); - } catch (error) { - console.error( - `${colors.RED}Error running test: ${error.message}${colors.NC}`, - ); - FAILED_TESTS++; - process.exit(1); - } -} - -// Function to run an error test (expected to fail) -async function runErrorTest(testName, ...args) { - const outputFile = path.join( - OUTPUT_DIR, - `${testName.replace(/\//g, "_")}.log`, - ); - - console.log(`\n${colors.YELLOW}Testing error case: ${testName}${colors.NC}`); - TOTAL_TESTS++; - - // Run the command and capture output - console.log( - `${colors.BLUE}Command: node ${BUILD_DIR}/cli.js ${args.join(" ")}${colors.NC}`, - ); - - try { - // Create a write stream for the output file - const outputStream = fs.createWriteStream(outputFile); - - // Spawn the process - return new Promise((resolve) => { - const child = spawn("node", [path.join(BUILD_DIR, "cli.js"), ...args], { - stdio: ["ignore", "pipe", "pipe"], - }); - - const timeout = setTimeout(() => { - console.log( - `${colors.YELLOW}Error test timed out: ${testName}${colors.NC}`, - ); - child.kill(); - }, 10000); - - // Pipe stdout and stderr to the output file - child.stdout.pipe(outputStream); - child.stderr.pipe(outputStream); - - // Also capture output for display - let output = ""; - child.stdout.on("data", (data) => { - output += data.toString(); - }); - child.stderr.on("data", (data) => { - output += data.toString(); - }); - - child.on("close", (code) => { - clearTimeout(timeout); - outputStream.end(); - - // For error tests, we expect a non-zero exit code OR JSON with isError: true - let hasJsonError = false; - if (code === 0) { - // Try to parse JSON and check for isError field - try { - const jsonMatch = output.match(/\{[\s\S]*\}/); - if (jsonMatch) { - const parsed = JSON.parse(jsonMatch[0]); - hasJsonError = parsed.isError === true; - } - } catch (e) { - // Not valid JSON or parse failed, continue with original check - } - } - - if (code !== 0 || hasJsonError) { - console.log( - `${colors.GREEN}✓ Error test passed: ${testName}${colors.NC}`, - ); - console.log(`${colors.BLUE}Error output (expected):${colors.NC}`); - const firstFewLines = output - .split("\n") - .slice(0, 5) - .map((line) => ` ${line}`) - .join("\n"); - console.log(firstFewLines); - PASSED_TESTS++; - resolve(true); - } else { - console.log( - `${colors.RED}✗ Error test failed: ${testName} (expected error but got success)${colors.NC}`, - ); - console.log(`${colors.RED}Output:${colors.NC}`); - console.log( - output - .split("\n") - .map((line) => ` ${line}`) - .join("\n"), - ); - FAILED_TESTS++; - - // Stop after any error is encountered - console.log( - `${colors.YELLOW}Stopping tests due to error. Please validate and fix before continuing.${colors.NC}`, - ); - process.exit(1); - } - }); - }); - } catch (error) { - console.error( - `${colors.RED}Error running test: ${error.message}${colors.NC}`, - ); - FAILED_TESTS++; - process.exit(1); - } -} - -// Run all tests -async function runTests() { - console.log( - `\n${colors.YELLOW}=== Running Tool Discovery Tests ===${colors.NC}`, - ); - - // Test 1: List available tools - await runBasicTest( - "tool_discovery_list", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - ); - - console.log( - `\n${colors.YELLOW}=== Running JSON Argument Parsing Tests ===${colors.NC}`, - ); - - // Test 2: String arguments (backward compatibility) - await runBasicTest( - "json_args_string", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=hello world", - ); - - // Test 3: Number arguments - await runBasicTest( - "json_args_number_integer", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "get-sum", - "--tool-arg", - "a=42", - "b=58", - ); - - // Test 4: Number arguments with decimals (using add tool with decimal numbers) - await runBasicTest( - "json_args_number_decimal", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "get-sum", - "--tool-arg", - "a=19.99", - "b=20.01", - ); - - // Test 5: Boolean arguments - true - await runBasicTest( - "json_args_boolean_true", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "get-annotated-message", - "--tool-arg", - "messageType=success", - "includeImage=true", - ); - - // Test 6: Boolean arguments - false - await runBasicTest( - "json_args_boolean_false", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "get-annotated-message", - "--tool-arg", - "messageType=error", - "includeImage=false", - ); - - // Test 7: Null arguments (using echo with string "null") - await runBasicTest( - "json_args_null", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - 'message="null"', - ); - - // Test 14: Multiple arguments with mixed types (using add tool) - await runBasicTest( - "json_args_multiple_mixed", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "get-sum", - "--tool-arg", - "a=42.5", - "b=57.5", - ); - - console.log( - `\n${colors.YELLOW}=== Running JSON Parsing Edge Cases ===${colors.NC}`, - ); - - // Test 15: Invalid JSON should fall back to string - await runBasicTest( - "json_args_invalid_fallback", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message={invalid json}", - ); - - // Test 16: Empty string value - await runBasicTest( - "json_args_empty_value", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - 'message=""', - ); - - // Test 17: Special characters in strings - await runBasicTest( - "json_args_special_chars", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - 'message="C:\\\\Users\\\\test"', - ); - - // Test 18: Unicode characters - await runBasicTest( - "json_args_unicode", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - 'message="🚀🎉✨"', - ); - - // Test 19: Arguments with equals signs in values - await runBasicTest( - "json_args_equals_in_value", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=2+2=4", - ); - - // Test 20: Base64-like strings - await runBasicTest( - "json_args_base64_like", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0=", - ); - - console.log( - `\n${colors.YELLOW}=== Running Tool Error Handling Tests ===${colors.NC}`, - ); - - // Test 21: Non-existent tool - await runErrorTest( - "tool_error_nonexistent", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "nonexistent_tool", - "--tool-arg", - "message=test", - ); - - // Test 22: Missing tool name - await runErrorTest( - "tool_error_missing_name", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-arg", - "message=test", - ); - - // Test 23: Invalid tool argument format - await runErrorTest( - "tool_error_invalid_arg_format", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "invalid_format_no_equals", - ); - - console.log( - `\n${colors.YELLOW}=== Running Prompt JSON Argument Tests ===${colors.NC}`, - ); - - // Test 24: Prompt with JSON arguments - await runBasicTest( - "prompt_json_args_mixed", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "prompts/get", - "--prompt-name", - "args-prompt", - "--prompt-args", - "city=New York", - "state=NY", - ); - - // Test 25: Prompt with simple arguments - await runBasicTest( - "prompt_json_args_simple", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "prompts/get", - "--prompt-name", - "simple-prompt", - "--prompt-args", - "name=test", - "count=5", - ); - - console.log( - `\n${colors.YELLOW}=== Running Backward Compatibility Tests ===${colors.NC}`, - ); - - // Test 26: Ensure existing string-only usage still works - await runBasicTest( - "backward_compatibility_strings", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=hello", - ); - - // Test 27: Multiple string arguments (existing pattern) - using add tool - await runBasicTest( - "backward_compatibility_multiple_strings", - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "get-sum", - "--tool-arg", - "a=10", - "b=20", - ); - - // Print test summary - console.log(`\n${colors.YELLOW}=== Test Summary ===${colors.NC}`); - console.log(`${colors.GREEN}Passed: ${PASSED_TESTS}${colors.NC}`); - console.log(`${colors.RED}Failed: ${FAILED_TESTS}${colors.NC}`); - console.log(`${colors.ORANGE}Skipped: ${SKIPPED_TESTS}${colors.NC}`); - console.log(`Total: ${TOTAL_TESTS}`); - console.log( - `${colors.BLUE}Detailed logs saved to: ${OUTPUT_DIR}${colors.NC}`, - ); - - console.log(`\n${colors.GREEN}All tool tests completed!${colors.NC}`); -} - -// Run all tests -runTests().catch((error) => { - console.error( - `${colors.RED}Tests failed with error: ${error.message}${colors.NC}`, - ); - process.exit(1); -}); diff --git a/cli/vitest.config.ts b/cli/vitest.config.ts new file mode 100644 index 000000000..9984fb11a --- /dev/null +++ b/cli/vitest.config.ts @@ -0,0 +1,10 @@ +import { defineConfig } from "vitest/config"; + +export default defineConfig({ + test: { + globals: true, + environment: "node", + include: ["**/__tests__/**/*.test.ts"], + testTimeout: 15000, // 15 seconds - CLI tests spawn subprocesses that need time + }, +}); diff --git a/package-lock.json b/package-lock.json index 758c0ea9e..db3445652 100644 --- a/package-lock.json +++ b/package-lock.json @@ -17,7 +17,7 @@ "@modelcontextprotocol/inspector-cli": "^0.18.0", "@modelcontextprotocol/inspector-client": "^0.18.0", "@modelcontextprotocol/inspector-server": "^0.18.0", - "@modelcontextprotocol/sdk": "^1.24.3", + "@modelcontextprotocol/sdk": "^1.25.2", "concurrently": "^9.2.0", "node-fetch": "^3.3.2", "open": "^10.2.0", @@ -51,14 +51,16 @@ "version": "0.18.0", "license": "MIT", "dependencies": { - "@modelcontextprotocol/sdk": "^1.24.3", + "@modelcontextprotocol/sdk": "^1.25.2", "commander": "^13.1.0", "spawn-rx": "^5.1.2" }, "bin": { "mcp-inspector-cli": "build/cli.js" }, - "devDependencies": {} + "devDependencies": { + "vitest": "^4.0.17" + } }, "cli/node_modules/commander": { "version": "13.1.0", @@ -74,7 +76,7 @@ "version": "0.18.0", "license": "MIT", "dependencies": { - "@modelcontextprotocol/sdk": "^1.24.3", + "@modelcontextprotocol/sdk": "^1.25.2", "@radix-ui/react-checkbox": "^1.1.4", "@radix-ui/react-dialog": "^1.1.3", "@radix-ui/react-icons": "^1.3.0", @@ -3804,6 +3806,13 @@ "@sinonjs/commons": "^3.0.0" } }, + "node_modules/@standard-schema/spec": { + "version": "1.1.0", + "resolved": "https://registry.npmjs.org/@standard-schema/spec/-/spec-1.1.0.tgz", + "integrity": "sha512-l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w==", + "dev": true, + "license": "MIT" + }, "node_modules/@testing-library/dom": { "version": "10.4.1", "resolved": "https://registry.npmjs.org/@testing-library/dom/-/dom-10.4.1.tgz", @@ -3978,6 +3987,17 @@ "@types/node": "*" } }, + "node_modules/@types/chai": { + "version": "5.2.3", + "resolved": "https://registry.npmjs.org/@types/chai/-/chai-5.2.3.tgz", + "integrity": "sha512-Mw558oeA9fFbv65/y4mHtXDs9bPnFMZAL/jxdPFUpOHHIXX91mcgEHbS5Lahr+pwZFR8A7GQleRWeI6cGFC2UA==", + "dev": true, + "license": "MIT", + "dependencies": { + "@types/deep-eql": "*", + "assertion-error": "^2.0.1" + } + }, "node_modules/@types/connect": { "version": "3.4.38", "resolved": "https://registry.npmjs.org/@types/connect/-/connect-3.4.38.tgz", @@ -3998,6 +4018,13 @@ "@types/node": "*" } }, + "node_modules/@types/deep-eql": { + "version": "4.0.2", + "resolved": "https://registry.npmjs.org/@types/deep-eql/-/deep-eql-4.0.2.tgz", + "integrity": "sha512-c9h9dVVMigMPc4bwTvC5dxqtqJZwQPePsWjPlpSOnojbor6pGqdk541lfA7AqFQr5pB1BRdq0juY9db81BwyFw==", + "dev": true, + "license": "MIT" + }, "node_modules/@types/estree": { "version": "1.0.8", "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.8.tgz", @@ -4586,6 +4613,117 @@ "vite": "^4.2.0 || ^5.0.0 || ^6.0.0 || ^7.0.0" } }, + "node_modules/@vitest/expect": { + "version": "4.0.17", + "resolved": "https://registry.npmjs.org/@vitest/expect/-/expect-4.0.17.tgz", + "integrity": "sha512-mEoqP3RqhKlbmUmntNDDCJeTDavDR+fVYkSOw8qRwJFaW/0/5zA9zFeTrHqNtcmwh6j26yMmwx2PqUDPzt5ZAQ==", + "dev": true, + "license": "MIT", + "dependencies": { + "@standard-schema/spec": "^1.0.0", + "@types/chai": "^5.2.2", + "@vitest/spy": "4.0.17", + "@vitest/utils": "4.0.17", + "chai": "^6.2.1", + "tinyrainbow": "^3.0.3" + }, + "funding": { + "url": "https://opencollective.com/vitest" + } + }, + "node_modules/@vitest/mocker": { + "version": "4.0.17", + "resolved": "https://registry.npmjs.org/@vitest/mocker/-/mocker-4.0.17.tgz", + "integrity": "sha512-+ZtQhLA3lDh1tI2wxe3yMsGzbp7uuJSWBM1iTIKCbppWTSBN09PUC+L+fyNlQApQoR+Ps8twt2pbSSXg2fQVEQ==", + "dev": true, + "license": "MIT", + "dependencies": { + "@vitest/spy": "4.0.17", + "estree-walker": "^3.0.3", + "magic-string": "^0.30.21" + }, + "funding": { + "url": "https://opencollective.com/vitest" + }, + "peerDependencies": { + "msw": "^2.4.9", + "vite": "^6.0.0 || ^7.0.0-0" + }, + "peerDependenciesMeta": { + "msw": { + "optional": true + }, + "vite": { + "optional": true + } + } + }, + "node_modules/@vitest/pretty-format": { + "version": "4.0.17", + "resolved": "https://registry.npmjs.org/@vitest/pretty-format/-/pretty-format-4.0.17.tgz", + "integrity": "sha512-Ah3VAYmjcEdHg6+MwFE17qyLqBHZ+ni2ScKCiW2XrlSBV4H3Z7vYfPfz7CWQ33gyu76oc0Ai36+kgLU3rfF4nw==", + "dev": true, + "license": "MIT", + "dependencies": { + "tinyrainbow": "^3.0.3" + }, + "funding": { + "url": "https://opencollective.com/vitest" + } + }, + "node_modules/@vitest/runner": { + "version": "4.0.17", + "resolved": "https://registry.npmjs.org/@vitest/runner/-/runner-4.0.17.tgz", + "integrity": "sha512-JmuQyf8aMWoo/LmNFppdpkfRVHJcsgzkbCA+/Bk7VfNH7RE6Ut2qxegeyx2j3ojtJtKIbIGy3h+KxGfYfk28YQ==", + "dev": true, + "license": "MIT", + "dependencies": { + "@vitest/utils": "4.0.17", + "pathe": "^2.0.3" + }, + "funding": { + "url": "https://opencollective.com/vitest" + } + }, + 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+ "version": "0.30.21", + "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.21.tgz", + "integrity": "sha512-vd2F4YUyEXKGcLHoq+TEyCjxueSeHnFxyyjNp80yg0XV4vUhnDer/lvvlqM/arB5bXQN5K2/3oinyCRyx8T2CQ==", + "dev": true, + "license": "MIT", + "dependencies": { + "@jridgewell/sourcemap-codec": "^1.5.5" + } + }, "node_modules/make-dir": { "version": "4.0.0", "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-4.0.0.tgz", @@ -9709,6 +9904,17 @@ "url": "https://github.com/sponsors/ljharb" } }, + "node_modules/obug": { + "version": "2.1.1", + "resolved": "https://registry.npmjs.org/obug/-/obug-2.1.1.tgz", + "integrity": "sha512-uTqF9MuPraAQ+IsnPf366RG4cP9RtUi7MLO1N3KEc+wb0a6yKpeL0lmk2IB1jY5KHPAlTc6T/JRdC/YqxHNwkQ==", + "dev": true, + "funding": [ + "https://github.com/sponsors/sxzz", + "https://opencollective.com/debug" + ], + "license": "MIT" + }, "node_modules/on-finished": { "version": "2.4.1", "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz", @@ -9964,6 +10170,13 @@ "url": "https://opencollective.com/express" } }, + "node_modules/pathe": { + "version": "2.0.3", + "resolved": "https://registry.npmjs.org/pathe/-/pathe-2.0.3.tgz", + "integrity": "sha512-WUjGcAqP1gQacoQe+OBJsFA7Ld4DyXuUIjZ5cc75cLHvJ7dtNsTugphxIADwspS+AraAUePCKrSVtPLFj/F88w==", + "dev": true, + "license": "MIT" + }, "node_modules/picocolors": { "version": "1.1.1", "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz", @@ -11245,6 +11458,13 @@ "url": "https://github.com/sponsors/ljharb" } }, + "node_modules/siginfo": { + "version": "2.0.0", + "resolved": "https://registry.npmjs.org/siginfo/-/siginfo-2.0.0.tgz", + "integrity": "sha512-ybx0WO1/8bSBLEWXZvEd7gMW3Sn3JFlW3TvX1nREbDLRNQNaeNN8WK0meBwPdAaOI7TtRRRJn/Es1zhrrCHu7g==", + "dev": true, + "license": "ISC" + }, "node_modules/signal-exit": { "version": "3.0.7", "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.7.tgz", @@ -11370,6 +11590,13 @@ "node": ">=8" } }, + "node_modules/stackback": { + "version": "0.0.2", + "resolved": "https://registry.npmjs.org/stackback/-/stackback-0.0.2.tgz", + "integrity": "sha512-1XMJE5fQo1jGH6Y/7ebnwPOBEkIEnT4QF32d5R1+VXdXveM0IBMJt8zfaxX1P3QhVwrYe+576+jkANtSS2mBbw==", + "dev": true, + "license": "MIT" + }, "node_modules/statuses": { "version": "2.0.2", "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.2.tgz", @@ -11379,6 +11606,13 @@ "node": ">= 0.8" } }, + "node_modules/std-env": { + "version": "3.10.0", + "resolved": "https://registry.npmjs.org/std-env/-/std-env-3.10.0.tgz", + "integrity": "sha512-5GS12FdOZNliM5mAOxFRg7Ir0pWz8MdpYm6AY6VPkGpbA7ZzmbzNcBJQ0GPvvyWgcY7QAhCgf9Uy89I03faLkg==", + "dev": true, + "license": "MIT" + }, "node_modules/string-argv": { "version": "0.3.2", "resolved": "https://registry.npmjs.org/string-argv/-/string-argv-0.3.2.tgz", @@ -11668,6 +11902,23 @@ "node": ">=0.8" } }, + "node_modules/tinybench": { + "version": "2.9.0", + "resolved": "https://registry.npmjs.org/tinybench/-/tinybench-2.9.0.tgz", + "integrity": "sha512-0+DUvqWMValLmha6lr4kD8iAMK1HzV0/aKnCtWb9v9641TnP/MFb7Pc2bxoxQjTXAErryXVgUOfv2YqNllqGeg==", + "dev": true, + "license": "MIT" + }, + "node_modules/tinyexec": { + "version": "1.0.2", + "resolved": "https://registry.npmjs.org/tinyexec/-/tinyexec-1.0.2.tgz", + "integrity": "sha512-W/KYk+NFhkmsYpuHq5JykngiOCnxeVL8v8dFnqxSD8qEEdRfXk1SDM6JzNqcERbcGYj9tMrDQBYV9cjgnunFIg==", + "dev": true, + "license": "MIT", + "engines": { + "node": ">=18" + } + }, "node_modules/tinyglobby": { "version": "0.2.15", "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.15.tgz", @@ -11716,6 +11967,16 @@ "url": "https://github.com/sponsors/jonschlinkert" } }, + "node_modules/tinyrainbow": { + "version": "3.0.3", + "resolved": "https://registry.npmjs.org/tinyrainbow/-/tinyrainbow-3.0.3.tgz", + "integrity": "sha512-PSkbLUoxOFRzJYjjxHJt9xro7D+iilgMX/C9lawzVuYiIdcihh9DXmVibBe8lmcFrRi/VzlPjBxbN7rH24q8/Q==", + "dev": true, + "license": "MIT", + "engines": { + "node": ">=14.0.0" + } + }, "node_modules/tldts": { "version": "6.1.86", "resolved": "https://registry.npmjs.org/tldts/-/tldts-6.1.86.tgz", @@ -11992,6 +12253,7 @@ "os": [ "aix" ], + "peer": true, "engines": { "node": ">=18" } @@ -12009,6 +12271,7 @@ "os": [ "android" ], + "peer": true, "engines": { "node": ">=18" } @@ -12026,6 +12289,7 @@ "os": [ "android" ], + "peer": true, "engines": { "node": ">=18" } @@ -12043,6 +12307,7 @@ "os": [ "android" ], + "peer": true, "engines": { "node": ">=18" } @@ -12060,6 +12325,7 @@ "os": [ "darwin" ], + "peer": true, "engines": { "node": ">=18" } @@ -12077,6 +12343,7 @@ "os": [ "darwin" ], + "peer": true, "engines": { "node": ">=18" } @@ -12094,6 +12361,7 @@ "os": [ "freebsd" ], + "peer": true, "engines": { "node": ">=18" } @@ -12111,6 +12379,7 @@ "os": [ "freebsd" ], + "peer": true, "engines": { "node": ">=18" } @@ -12128,6 +12397,7 @@ "os": [ "linux" ], + "peer": true, "engines": { "node": ">=18" } @@ -12145,6 +12415,7 @@ "os": [ "linux" ], + "peer": true, "engines": { "node": ">=18" } @@ -12162,6 +12433,7 @@ "os": [ "linux" ], + "peer": true, "engines": { "node": ">=18" } @@ -12179,6 +12451,7 @@ "os": [ "linux" ], + "peer": true, "engines": { "node": ">=18" } @@ -12196,6 +12469,7 @@ "os": [ "linux" ], + "peer": true, "engines": { "node": ">=18" } @@ -12213,6 +12487,7 @@ "os": [ "linux" ], + "peer": true, "engines": { "node": ">=18" } @@ -12230,6 +12505,7 @@ "os": [ "linux" ], + "peer": true, "engines": { "node": ">=18" } @@ -12247,6 +12523,7 @@ "os": [ "linux" ], + "peer": true, "engines": { "node": ">=18" } @@ -12264,6 +12541,7 @@ "os": [ "linux" ], + "peer": true, "engines": { "node": ">=18" } @@ -12281,6 +12559,7 @@ "os": [ "netbsd" ], + "peer": true, "engines": { "node": ">=18" } @@ -12298,6 +12577,7 @@ "os": [ "netbsd" ], + "peer": true, "engines": { "node": ">=18" } @@ -12315,6 +12595,7 @@ "os": [ "openbsd" ], + "peer": true, "engines": { "node": ">=18" } @@ -12332,6 +12613,7 @@ "os": [ "openbsd" ], + "peer": true, "engines": { "node": ">=18" } @@ -12349,6 +12631,7 @@ "os": [ "openharmony" ], + "peer": true, "engines": { "node": ">=18" } @@ -12366,6 +12649,7 @@ "os": [ "sunos" ], + "peer": true, "engines": { "node": ">=18" } @@ -12383,6 +12667,7 @@ "os": [ "win32" ], + "peer": true, "engines": { "node": ">=18" } @@ -12400,6 +12685,7 @@ "os": [ "win32" ], + "peer": true, "engines": { "node": ">=18" } @@ -12417,6 +12703,7 @@ "os": [ "win32" ], + "peer": true, "engines": { "node": ">=18" } @@ -12826,6 +13113,97 @@ "url": "https://github.com/sponsors/jonschlinkert" } }, + "node_modules/vitest": { + "version": "4.0.17", + "resolved": "https://registry.npmjs.org/vitest/-/vitest-4.0.17.tgz", + "integrity": "sha512-FQMeF0DJdWY0iOnbv466n/0BudNdKj1l5jYgl5JVTwjSsZSlqyXFt/9+1sEyhR6CLowbZpV7O1sCHrzBhucKKg==", + "dev": true, + "license": "MIT", + "dependencies": { + "@vitest/expect": "4.0.17", + "@vitest/mocker": "4.0.17", + "@vitest/pretty-format": "4.0.17", + "@vitest/runner": "4.0.17", + "@vitest/snapshot": "4.0.17", + "@vitest/spy": "4.0.17", + "@vitest/utils": "4.0.17", + "es-module-lexer": "^1.7.0", + "expect-type": "^1.2.2", + "magic-string": "^0.30.21", + "obug": "^2.1.1", + "pathe": "^2.0.3", + "picomatch": "^4.0.3", + "std-env": "^3.10.0", + "tinybench": "^2.9.0", + "tinyexec": "^1.0.2", + "tinyglobby": "^0.2.15", + "tinyrainbow": "^3.0.3", + "vite": "^6.0.0 || ^7.0.0", + "why-is-node-running": "^2.3.0" + }, + "bin": { + "vitest": "vitest.mjs" + }, + "engines": { + "node": "^20.0.0 || ^22.0.0 || >=24.0.0" + }, + "funding": { + "url": "https://opencollective.com/vitest" + }, + "peerDependencies": { + "@edge-runtime/vm": "*", + "@opentelemetry/api": "^1.9.0", + "@types/node": "^20.0.0 || ^22.0.0 || >=24.0.0", + "@vitest/browser-playwright": "4.0.17", + "@vitest/browser-preview": "4.0.17", + "@vitest/browser-webdriverio": "4.0.17", + "@vitest/ui": "4.0.17", + "happy-dom": "*", + "jsdom": "*" + }, + "peerDependenciesMeta": { + "@edge-runtime/vm": { + "optional": true + }, + "@opentelemetry/api": { + "optional": true + }, + "@types/node": { + "optional": true + }, + "@vitest/browser-playwright": { + "optional": true + }, + "@vitest/browser-preview": { + "optional": true + }, + "@vitest/browser-webdriverio": { + "optional": true + }, + "@vitest/ui": { + "optional": true + }, + "happy-dom": { + "optional": true + }, + "jsdom": { + "optional": true + } + } + }, + "node_modules/vitest/node_modules/picomatch": { + "version": "4.0.3", + "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.3.tgz", + "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==", + "dev": true, + "license": "MIT", + "engines": { + "node": ">=12" + }, + "funding": { + "url": "https://github.com/sponsors/jonschlinkert" + } + }, "node_modules/w3c-xmlserializer": { "version": "4.0.0", "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-4.0.0.tgz", @@ -12933,6 +13311,23 @@ "node": ">= 8" } }, + "node_modules/why-is-node-running": { + "version": "2.3.0", + "resolved": "https://registry.npmjs.org/why-is-node-running/-/why-is-node-running-2.3.0.tgz", + "integrity": "sha512-hUrmaWBdVDcxvYqnyh09zunKzROWjbZTiNy8dBEjkS7ehEDQibXJ7XvlmtbwuTclUiIyN+CyXQD4Vmko8fNm8w==", + "dev": true, + "license": "MIT", + "dependencies": { + "siginfo": "^2.0.0", + "stackback": "0.0.2" + }, + "bin": { + "why-is-node-running": "cli.js" + }, + "engines": { + "node": ">=8" + } + }, "node_modules/word-wrap": { "version": "1.2.5", "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz", @@ -13235,7 +13630,7 @@ "version": "0.18.0", "license": "MIT", "dependencies": { - "@modelcontextprotocol/sdk": "^1.24.3", + "@modelcontextprotocol/sdk": "^1.25.2", "cors": "^2.8.5", "express": "^5.1.0", "shell-quote": "^1.8.3", From 395de2ad561628feb74be4ffb1ccb456089290fa Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Wed, 14 Jan 2026 17:26:44 -0800 Subject: [PATCH 03/44] Refactoring some single-use configs fixtures and into the refeencing tests --- cli/__tests__/cli.test.ts | 278 ++++++++++++++++++------------ cli/__tests__/helpers/fixtures.ts | 125 +------------- 2 files changed, 174 insertions(+), 229 deletions(-) diff --git a/cli/__tests__/cli.test.ts b/cli/__tests__/cli.test.ts index 80be1b618..324f6dbf8 100644 --- a/cli/__tests__/cli.test.ts +++ b/cli/__tests__/cli.test.ts @@ -1,27 +1,12 @@ -import { - describe, - it, - expect, - beforeAll, - afterAll, - beforeEach, - afterEach, -} from "vitest"; +import { describe, it, beforeAll, afterAll } from "vitest"; import { runCli } from "./helpers/cli-runner.js"; import { expectCliSuccess, expectCliFailure } from "./helpers/assertions.js"; import { TEST_SERVER, getSampleConfigPath, - createStdioConfig, - createSseConfig, - createHttpConfig, - createLegacyConfig, - createSingleServerConfig, - createDefaultServerConfig, - createMultiServerConfig, + createTestConfig, createInvalidConfig, - getConfigDir, - cleanupTempDir, + deleteConfigFile, } from "./helpers/fixtures.js"; import { TestServerManager } from "./helpers/test-server.js"; @@ -30,34 +15,8 @@ const TEST_ARGS = [TEST_SERVER]; describe("CLI Tests", () => { const serverManager = new TestServerManager(); - let stdioConfigPath: string; - let sseConfigPath: string; - let httpConfigPath: string; - let legacyConfigPath: string; - let singleServerConfigPath: string; - let defaultServerConfigPath: string; - let multiServerConfigPath: string; - - beforeAll(() => { - // Create test config files - stdioConfigPath = createStdioConfig(); - sseConfigPath = createSseConfig(); - httpConfigPath = createHttpConfig(); - legacyConfigPath = createLegacyConfig(); - singleServerConfigPath = createSingleServerConfig(); - defaultServerConfigPath = createDefaultServerConfig(); - multiServerConfigPath = createMultiServerConfig(); - }); afterAll(() => { - // Cleanup test config files - cleanupTempDir(getConfigDir(stdioConfigPath)); - cleanupTempDir(getConfigDir(sseConfigPath)); - cleanupTempDir(getConfigDir(httpConfigPath)); - cleanupTempDir(getConfigDir(legacyConfigPath)); - cleanupTempDir(getConfigDir(singleServerConfigPath)); - cleanupTempDir(getConfigDir(defaultServerConfigPath)); - cleanupTempDir(getConfigDir(multiServerConfigPath)); serverManager.cleanup(); }); @@ -222,7 +181,7 @@ describe("CLI Tests", () => { expectCliFailure(result); } finally { - cleanupTempDir(getConfigDir(invalidConfigPath)); + deleteConfigFile(invalidConfigPath); } }); @@ -386,97 +345,198 @@ describe("CLI Tests", () => { describe("Config Transport Types", () => { it("should work with stdio transport type", async () => { - const result = await runCli([ - "--config", - stdioConfigPath, - "--server", - "test-stdio", - "--cli", - "--method", - "tools/list", - ]); + const configPath = createTestConfig({ + mcpServers: { + "test-stdio": { + type: "stdio", + command: "npx", + args: [TEST_SERVER], + env: { + TEST_ENV: "test-value", + }, + }, + }, + }); + try { + const result = await runCli([ + "--config", + configPath, + "--server", + "test-stdio", + "--cli", + "--method", + "tools/list", + ]); - expectCliSuccess(result); + expectCliSuccess(result); + } finally { + deleteConfigFile(configPath); + } }); it("should fail with SSE transport type in CLI mode (connection error)", async () => { - const result = await runCli([ - "--config", - sseConfigPath, - "--server", - "test-sse", - "--cli", - "--method", - "tools/list", - ]); + const configPath = createTestConfig({ + mcpServers: { + "test-sse": { + type: "sse", + url: "http://localhost:3000/sse", + note: "Test SSE server", + }, + }, + }); + try { + const result = await runCli([ + "--config", + configPath, + "--server", + "test-sse", + "--cli", + "--method", + "tools/list", + ]); - expectCliFailure(result); + expectCliFailure(result); + } finally { + deleteConfigFile(configPath); + } }); it("should fail with HTTP transport type in CLI mode (connection error)", async () => { - const result = await runCli([ - "--config", - httpConfigPath, - "--server", - "test-http", - "--cli", - "--method", - "tools/list", - ]); + const configPath = createTestConfig({ + mcpServers: { + "test-http": { + type: "streamable-http", + url: "http://localhost:3001/mcp", + note: "Test HTTP server", + }, + }, + }); + try { + const result = await runCli([ + "--config", + configPath, + "--server", + "test-http", + "--cli", + "--method", + "tools/list", + ]); - expectCliFailure(result); + expectCliFailure(result); + } finally { + deleteConfigFile(configPath); + } }); it("should work with legacy config without type field", async () => { - const result = await runCli([ - "--config", - legacyConfigPath, - "--server", - "test-legacy", - "--cli", - "--method", - "tools/list", - ]); + const configPath = createTestConfig({ + mcpServers: { + "test-legacy": { + command: "npx", + args: [TEST_SERVER], + env: { + LEGACY_ENV: "legacy-value", + }, + }, + }, + }); + try { + const result = await runCli([ + "--config", + configPath, + "--server", + "test-legacy", + "--cli", + "--method", + "tools/list", + ]); - expectCliSuccess(result); + expectCliSuccess(result); + } finally { + deleteConfigFile(configPath); + } }); }); describe("Default Server Selection", () => { it("should auto-select single server", async () => { - const result = await runCli([ - "--config", - singleServerConfigPath, - "--cli", - "--method", - "tools/list", - ]); + const configPath = createTestConfig({ + mcpServers: { + "only-server": { + command: "npx", + args: [TEST_SERVER], + }, + }, + }); + try { + const result = await runCli([ + "--config", + configPath, + "--cli", + "--method", + "tools/list", + ]); - expectCliSuccess(result); + expectCliSuccess(result); + } finally { + deleteConfigFile(configPath); + } }); it("should require explicit server selection even with default-server key (multiple servers)", async () => { - const result = await runCli([ - "--config", - defaultServerConfigPath, - "--cli", - "--method", - "tools/list", - ]); + const configPath = createTestConfig({ + mcpServers: { + "default-server": { + command: "npx", + args: [TEST_SERVER], + }, + "other-server": { + command: "node", + args: ["other.js"], + }, + }, + }); + try { + const result = await runCli([ + "--config", + configPath, + "--cli", + "--method", + "tools/list", + ]); - expectCliFailure(result); + expectCliFailure(result); + } finally { + deleteConfigFile(configPath); + } }); it("should require explicit server selection with multiple servers", async () => { - const result = await runCli([ - "--config", - multiServerConfigPath, - "--cli", - "--method", - "tools/list", - ]); + const configPath = createTestConfig({ + mcpServers: { + server1: { + command: "npx", + args: [TEST_SERVER], + }, + server2: { + command: "node", + args: ["other.js"], + }, + }, + }); + try { + const result = await runCli([ + "--config", + configPath, + "--cli", + "--method", + "tools/list", + ]); - expectCliFailure(result); + expectCliFailure(result); + } finally { + deleteConfigFile(configPath); + } }); }); diff --git a/cli/__tests__/helpers/fixtures.ts b/cli/__tests__/helpers/fixtures.ts index 88269e05d..ad0c49c6c 100644 --- a/cli/__tests__/helpers/fixtures.ts +++ b/cli/__tests__/helpers/fixtures.ts @@ -21,7 +21,7 @@ export function getSampleConfigPath(): string { * Create a temporary directory for test files * Uses crypto.randomUUID() to ensure uniqueness even when called in parallel */ -export function createTempDir(prefix: string = "mcp-inspector-test-"): string { +function createTempDir(prefix: string = "mcp-inspector-test-"): string { const uniqueId = crypto.randomUUID(); const tempDir = path.join(os.tmpdir(), `${prefix}${uniqueId}`); fs.mkdirSync(tempDir, { recursive: true }); @@ -31,7 +31,7 @@ export function createTempDir(prefix: string = "mcp-inspector-test-"): string { /** * Clean up temporary directory */ -export function cleanupTempDir(dir: string) { +function cleanupTempDir(dir: string) { try { fs.rmSync(dir, { recursive: true, force: true }); } catch (err) { @@ -62,123 +62,8 @@ export function createInvalidConfig(): string { } /** - * Get the directory containing a config file (for cleanup) + * Delete a config file and its containing directory */ -export function getConfigDir(configPath: string): string { - return path.dirname(configPath); -} - -/** - * Create a stdio config file - */ -export function createStdioConfig(): string { - return createTestConfig({ - mcpServers: { - "test-stdio": { - type: "stdio", - command: "npx", - args: [TEST_SERVER], - env: { - TEST_ENV: "test-value", - }, - }, - }, - }); -} - -/** - * Create an SSE config file - */ -export function createSseConfig(): string { - return createTestConfig({ - mcpServers: { - "test-sse": { - type: "sse", - url: "http://localhost:3000/sse", - note: "Test SSE server", - }, - }, - }); -} - -/** - * Create an HTTP config file - */ -export function createHttpConfig(): string { - return createTestConfig({ - mcpServers: { - "test-http": { - type: "streamable-http", - url: "http://localhost:3001/mcp", - note: "Test HTTP server", - }, - }, - }); -} - -/** - * Create a legacy config file (without type field) - */ -export function createLegacyConfig(): string { - return createTestConfig({ - mcpServers: { - "test-legacy": { - command: "npx", - args: [TEST_SERVER], - env: { - LEGACY_ENV: "legacy-value", - }, - }, - }, - }); -} - -/** - * Create a single-server config (for auto-selection) - */ -export function createSingleServerConfig(): string { - return createTestConfig({ - mcpServers: { - "only-server": { - command: "npx", - args: [TEST_SERVER], - }, - }, - }); -} - -/** - * Create a multi-server config with a "default-server" key (but still requires explicit selection) - */ -export function createDefaultServerConfig(): string { - return createTestConfig({ - mcpServers: { - "default-server": { - command: "npx", - args: [TEST_SERVER], - }, - "other-server": { - command: "node", - args: ["other.js"], - }, - }, - }); -} - -/** - * Create a multi-server config (no default) - */ -export function createMultiServerConfig(): string { - return createTestConfig({ - mcpServers: { - server1: { - command: "npx", - args: [TEST_SERVER], - }, - server2: { - command: "node", - args: ["other.js"], - }, - }, - }); +export function deleteConfigFile(configPath: string): void { + cleanupTempDir(path.dirname(configPath)); } From 20292b158ab9e16a433fac9660b541306334b1e9 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Wed, 14 Jan 2026 20:54:14 -0800 Subject: [PATCH 04/44] No tests refere to server-everything (or any other server from a registry), all tests actually validate what they say they test. --- cli/VITEST_MIGRATION_PLAN.md | 514 -------- cli/__tests__/README.md | 11 +- cli/__tests__/cli.test.ts | 582 +++++++--- cli/__tests__/headers.test.ts | 182 ++- cli/__tests__/helpers/fixtures.ts | 50 +- cli/__tests__/helpers/instrumented-server.ts | 517 +++++++++ cli/__tests__/helpers/test-mcp-server.ts | 269 +++++ cli/__tests__/helpers/test-server.ts | 97 -- cli/__tests__/metadata.test.ts | 1095 +++++++++++++----- cli/__tests__/tools.test.ts | 250 +++- cli/package.json | 2 + package-lock.json | 38 + 12 files changed, 2416 insertions(+), 1191 deletions(-) delete mode 100644 cli/VITEST_MIGRATION_PLAN.md create mode 100644 cli/__tests__/helpers/instrumented-server.ts create mode 100644 cli/__tests__/helpers/test-mcp-server.ts delete mode 100644 cli/__tests__/helpers/test-server.ts diff --git a/cli/VITEST_MIGRATION_PLAN.md b/cli/VITEST_MIGRATION_PLAN.md deleted file mode 100644 index eaa0e09c5..000000000 --- a/cli/VITEST_MIGRATION_PLAN.md +++ /dev/null @@ -1,514 +0,0 @@ -# CLI Tests Migration to Vitest - Plan & As-Built - -## Overview - -This document outlines the plan to migrate the CLI test suite from custom scripting approach to Vitest, following the patterns established in the `servers` project. - -**Status: ✅ MIGRATION COMPLETE** (with remaining cleanup tasks) - -### Summary - -- ✅ **All 85 tests migrated and passing** (35 CLI + 21 Tools + 7 Headers + 22 Metadata) -- ✅ **Test infrastructure complete** (helpers, fixtures, server management) -- ✅ **Parallel execution working** (fixed isolation issues) -- ❌ **Cleanup pending**: Remove old test files, update docs, verify CI/CD - -## Current State - -### Test Files - -- `cli/scripts/cli-tests.js` - Basic CLI functionality tests (933 lines) -- `cli/scripts/cli-tool-tests.js` - Tool-related tests (642 lines) -- `cli/scripts/cli-header-tests.js` - Header parsing tests (253 lines) -- `cli/scripts/cli-metadata-tests.js` - Metadata functionality tests (677 lines) - -### Current Approach - -- Custom test runner using Node.js `spawn` to execute CLI as subprocess -- Manual test result tracking (PASSED_TESTS, FAILED_TESTS counters) -- Custom colored console output -- Output logging to files in `test-output/`, `tool-test-output/`, `metadata-test-output/` -- Tests check exit codes and output content -- Some tests spawn external MCP servers (e.g., `@modelcontextprotocol/server-everything`) - -### Test Categories - -1. **Basic CLI Tests** (`cli-tests.js`): - - CLI mode validation - - Environment variables - - Config file handling - - Server selection - - Resource and prompt options - - Logging options - - Transport types (http/sse/stdio) - - ~37 test cases - -2. **Tool Tests** (`cli-tool-tests.js`): - - Tool discovery and listing - - JSON argument parsing (strings, numbers, booleans, null, objects, arrays) - - Tool schema validation - - Tool execution with various argument types - - Error handling - - Prompt JSON arguments - - Backward compatibility - - ~27 test cases - -3. **Header Tests** (`cli-header-tests.js`): - - Header parsing and validation - - Multiple headers - - Invalid header formats - - Special characters in headers - - ~7 test cases - -4. **Metadata Tests** (`cli-metadata-tests.js`): - - General metadata with `--metadata` - - Tool-specific metadata with `--tool-metadata` - - Metadata parsing (numbers, JSON, special chars) - - Metadata merging (tool-specific overrides general) - - Metadata validation - - ~23 test cases - -## Target State (Based on Servers Project) - -### Vitest Configuration ✅ COMPLETED - -- `vitest.config.ts` in `cli/` directory -- Standard vitest config with: - - `globals: true` (for `describe`, `it`, `expect` without imports) - - `environment: 'node'` - - Test files in `__tests__/` directory with `.test.ts` extension - - `testTimeout: 15000` (15 seconds for subprocess tests) - - **Note**: Coverage was initially configured but removed as integration tests spawn subprocesses, making coverage tracking ineffective - -### Test Structure - -- Tests organized in `cli/__tests__/` directory -- Test files mirror source structure or group by functionality -- Use TypeScript (`.test.ts` files) -- Standard vitest patterns: `describe`, `it`, `expect`, `beforeEach`, `afterEach` -- Use `vi` for mocking when needed - -### Package.json Updates ✅ COMPLETED - -- Added `vitest` and `@vitest/coverage-v8` to `devDependencies` -- Updated test script: `"test": "vitest run"` (coverage removed - see note above) -- Added `"test:watch": "vitest"` for development -- Added individual test file scripts: `test:cli`, `test:cli-tools`, `test:cli-headers`, `test:cli-metadata` -- Kept old test scripts as `test:old` for comparison - -## Migration Strategy - -### Phase 1: Setup and Infrastructure - -1. **Install Dependencies** - - ```bash - cd cli - npm install --save-dev vitest @vitest/coverage-v8 - ``` - -2. **Create Vitest Configuration** - - Create `cli/vitest.config.ts` following servers project pattern - - Configure test file patterns: `**/__tests__/**/*.test.ts` - - Set up coverage includes/excludes - - Configure for Node.js environment - -3. **Create Test Directory Structure** - - ``` - cli/ - ├── __tests__/ - │ ├── cli.test.ts # Basic CLI tests - │ ├── tools.test.ts # Tool-related tests - │ ├── headers.test.ts # Header parsing tests - │ └── metadata.test.ts # Metadata tests - ``` - -4. **Update package.json** - - Add vitest scripts - - Keep old test scripts temporarily for comparison - -### Phase 2: Test Helper Utilities - -Create shared test utilities in `cli/__tests__/helpers/`: - -**Note on Helper Location**: The servers project doesn't use a `helpers/` subdirectory. Their tests are primarily unit tests that mock dependencies. The one integration test (`structured-content.test.ts`) that spawns a server handles lifecycle directly in the test file using vitest hooks (`beforeEach`/`afterEach`) and uses the MCP SDK's `StdioClientTransport` rather than raw process spawning. - -However, our CLI tests are different: - -- **Integration tests** that test the CLI itself (which spawns processes) -- Need to test **multiple transport types** (stdio, HTTP, SSE) - not just stdio -- Need to manage **external test servers** (like `@modelcontextprotocol/server-everything`) -- **Shared utilities** across 4 test files to avoid code duplication - -The `__tests__/helpers/` pattern is common in Jest/Vitest projects for shared test utilities. Alternative locations: - -- `cli/test-helpers/` - Sibling to `__tests__`, but less discoverable -- Inline in test files - Would lead to significant code duplication across 4 files -- `cli/src/test-utils/` - Mixes test code with source code - -Given our needs, `__tests__/helpers/` is the most appropriate location. - -1. **CLI Runner Utility** (`cli-runner.ts`) ✅ COMPLETED - - Function to spawn CLI process with arguments - - Capture stdout, stderr, and exit code - - Handle timeouts (default 12s, less than Vitest's 15s timeout) - - Robust process termination (handles process groups on Unix) - - Return structured result object - - **As-built**: Uses `crypto.randomUUID()` for unique temp directories to prevent collisions in parallel execution - -2. **Test Server Management** (`test-server.ts`) ✅ COMPLETED - - Utilities to start/stop test MCP servers - - Server lifecycle management - - **As-built**: Dynamic port allocation using `findAvailablePort()` to prevent conflicts in parallel execution - - **As-built**: Returns `{ process, port }` object so tests can use the actual allocated port - - **As-built**: Uses `PORT` environment variable to configure server ports - -3. **Assertion Helpers** (`assertions.ts`) ✅ COMPLETED - - Custom matchers for CLI output validation - - JSON output parsing helpers (parses `stdout` to avoid Node.js warnings on `stderr`) - - Error message validation helpers - - **As-built**: `expectCliSuccess`, `expectCliFailure`, `expectOutputContains`, `expectValidJson`, `expectJsonError`, `expectJsonStructure` - -4. **Test Fixtures** (`fixtures.ts`) ✅ COMPLETED - - Test config files (stdio, SSE, HTTP, legacy, single-server, multi-server, default-server) - - Temporary directory management using `crypto.randomUUID()` for uniqueness - - Sample data generators - - **As-built**: All config creation functions implemented - -### Phase 3: Test Migration - -Migrate tests file by file, maintaining test coverage: - -#### 3.1 Basic CLI Tests (`cli.test.ts`) ✅ COMPLETED - -- Converted `runBasicTest` → `it('should ...', async () => { ... })` -- Converted `runErrorTest` → `it('should fail when ...', async () => { ... })` -- Grouped related tests in `describe` blocks: - - `describe('Basic CLI Mode', ...)` - 3 tests - - `describe('Environment Variables', ...)` - 5 tests - - `describe('Config File', ...)` - 6 tests - - `describe('Resource Options', ...)` - 2 tests - - `describe('Prompt Options', ...)` - 3 tests - - `describe('Logging Options', ...)` - 2 tests - - `describe('Config Transport Types', ...)` - 3 tests - - `describe('Default Server Selection', ...)` - 3 tests - - `describe('HTTP Transport', ...)` - 6 tests -- **Total: 35 tests** (matches original count) -- **As-built**: Added `--cli` flag to all CLI invocations to prevent web browser from opening -- **As-built**: Dynamic port handling for HTTP transport tests - -#### 3.2 Tool Tests (`tools.test.ts`) ✅ COMPLETED - -- Grouped by functionality: - - `describe('Tool Discovery', ...)` - 1 test - - `describe('JSON Argument Parsing', ...)` - 13 tests - - `describe('Error Handling', ...)` - 3 tests - - `describe('Prompt JSON Arguments', ...)` - 2 tests - - `describe('Backward Compatibility', ...)` - 2 tests -- **Total: 21 tests** (matches original count) -- **As-built**: Uses `expectJsonError` for error cases (CLI returns exit code 0 but indicates errors via JSON) - -#### 3.3 Header Tests (`headers.test.ts`) ✅ COMPLETED - -- Two `describe` blocks: - - `describe('Valid Headers', ...)` - 4 tests - - `describe('Invalid Header Formats', ...)` - 3 tests -- **Total: 7 tests** (matches original count) -- **As-built**: Removed unnecessary timeout overrides (default 12s is sufficient) - -#### 3.4 Metadata Tests (`metadata.test.ts`) ✅ COMPLETED - -- Grouped by functionality: - - `describe('General Metadata', ...)` - 3 tests - - `describe('Tool-Specific Metadata', ...)` - 3 tests - - `describe('Metadata Parsing', ...)` - 4 tests - - `describe('Metadata Merging', ...)` - 2 tests - - `describe('Metadata Validation', ...)` - 3 tests - - `describe('Metadata Integration', ...)` - 4 tests - - `describe('Metadata Impact', ...)` - 3 tests -- **Total: 22 tests** (matches original count) - -### Phase 4: Test Improvements ✅ COMPLETED - -1. **Better Assertions** ✅ - - Using vitest's rich assertion library - - Custom assertion helpers for CLI-specific checks (`expectCliSuccess`, `expectCliFailure`, etc.) - - Improved error messages - -2. **Test Isolation** ✅ - - Tests properly isolated using unique config files (via `crypto.randomUUID()`) - - Proper cleanup of temporary files and processes - - Using `beforeAll`/`afterAll` for config file setup/teardown - - **As-built**: Fixed race conditions in config file creation that caused test failures in parallel execution - -3. **Parallel Execution** ✅ - - Tests run in parallel by default (Vitest default behavior) - - **As-built**: Fixed port conflicts by implementing dynamic port allocation - - **As-built**: Fixed config file collisions by using `crypto.randomUUID()` instead of `Date.now()` - - **As-built**: Tests can run in parallel across files (Vitest runs files in parallel, tests within files sequentially) - -4. **Coverage** ⚠️ PARTIALLY COMPLETED - - Coverage configuration initially added but removed - - **Reason**: Integration tests spawn CLI as subprocess, so Vitest can't track coverage (coverage only tracks code in the test process) - - This is expected behavior for integration tests - -### Phase 5: Cleanup ⚠️ PENDING - -1. **Remove Old Test Files** ❌ NOT DONE - - `cli/scripts/cli-tests.js` - Still exists (kept as `test:old` script) - - `cli/scripts/cli-tool-tests.js` - Still exists - - `cli/scripts/cli-header-tests.js` - Still exists - - `cli/scripts/cli-metadata-tests.js` - Still exists - - **Recommendation**: Remove after verifying new tests work in CI/CD - -2. **Update Documentation** ❌ NOT DONE - - README not updated with new test commands - - Test structure not documented - - **Recommendation**: Add section to README about running tests - -3. **CI/CD Updates** ❌ NOT DONE - - CI scripts may still reference old test files - - **Recommendation**: Verify and update CI/CD workflows - -## Implementation Details - -### CLI Runner Helper - -```typescript -// cli/__tests__/helpers/cli-runner.ts -import { spawn } from "child_process"; -import { resolve } from "path"; -import { fileURLToPath } from "url"; -import { dirname } from "path"; - -const __dirname = dirname(fileURLToPath(import.meta.url)); -const CLI_PATH = resolve(__dirname, "../../build/cli.js"); - -export interface CliResult { - exitCode: number | null; - stdout: string; - stderr: string; - output: string; // Combined stdout + stderr -} - -export async function runCli( - args: string[], - options: { timeout?: number } = {}, -): Promise { - return new Promise((resolve, reject) => { - const child = spawn("node", [CLI_PATH, ...args], { - stdio: ["pipe", "pipe", "pipe"], - }); - - let stdout = ""; - let stderr = ""; - - const timeout = options.timeout - ? setTimeout(() => { - child.kill(); - reject(new Error(`CLI command timed out after ${options.timeout}ms`)); - }, options.timeout) - : null; - - child.stdout.on("data", (data) => { - stdout += data.toString(); - }); - - child.stderr.on("data", (data) => { - stderr += data.toString(); - }); - - child.on("close", (code) => { - if (timeout) clearTimeout(timeout); - resolve({ - exitCode: code, - stdout, - stderr, - output: stdout + stderr, - }); - }); - - child.on("error", (error) => { - if (timeout) clearTimeout(timeout); - reject(error); - }); - }); -} -``` - -### Test Example Structure - -```typescript -// cli/__tests__/cli.test.ts -import { describe, it, expect, beforeEach, afterEach } from "vitest"; -import { runCli } from "./helpers/cli-runner.js"; -import { TEST_SERVER } from "./helpers/test-server.js"; - -describe("Basic CLI Mode", () => { - it("should execute tools/list successfully", async () => { - const result = await runCli([ - "npx", - "@modelcontextprotocol/server-everything@2026.1.14", - "--cli", - "--method", - "tools/list", - ]); - - expect(result.exitCode).toBe(0); - expect(result.output).toContain('"tools"'); - }); - - it("should fail with nonexistent method", async () => { - const result = await runCli([ - "npx", - "@modelcontextprotocol/server-everything@2026.1.14", - "--cli", - "--method", - "nonexistent/method", - ]); - - expect(result.exitCode).not.toBe(0); - }); -}); -``` - -### Test Server Helper - -```typescript -// cli/__tests__/helpers/test-server.ts -import { spawn, ChildProcess } from "child_process"; - -export const TEST_SERVER = "@modelcontextprotocol/server-everything@2026.1.14"; - -export class TestServerManager { - private servers: ChildProcess[] = []; - - async startHttpServer(port: number = 3001): Promise { - const server = spawn("npx", [TEST_SERVER, "streamableHttp"], { - detached: true, - stdio: "ignore", - }); - - this.servers.push(server); - - // Wait for server to start - await new Promise((resolve) => setTimeout(resolve, 3000)); - - return server; - } - - cleanup() { - this.servers.forEach((server) => { - try { - process.kill(-server.pid!); - } catch (e) { - // Server may already be dead - } - }); - this.servers = []; - } -} -``` - -## File Structure After Migration - -``` -cli/ -├── __tests__/ -│ ├── cli.test.ts -│ ├── tools.test.ts -│ ├── headers.test.ts -│ ├── metadata.test.ts -│ └── helpers/ -│ ├── cli-runner.ts -│ ├── test-server.ts -│ ├── assertions.ts -│ └── fixtures.ts -├── vitest.config.ts -├── package.json (updated) -└── scripts/ - └── make-executable.js (keep) -``` - -## Benefits of Migration - -1. **Standard Testing Framework**: Use industry-standard vitest instead of custom scripts -2. **Better Developer Experience**: - - Watch mode for development - - Better error messages - - IDE integration -3. **Improved Assertions**: Rich assertion library with better error messages -4. **Parallel Execution**: Faster test runs -5. **Coverage Reports**: Built-in coverage with v8 provider -6. **Type Safety**: TypeScript test files with full type checking -7. **Maintainability**: Easier to maintain and extend -8. **Consistency**: Matches patterns used in servers project - -## Challenges and Considerations - -1. **Subprocess Testing**: Tests spawn CLI as subprocess - need to ensure proper cleanup -2. **External Server Dependencies**: Some tests require external MCP servers - need lifecycle management -3. **Output Validation**: Current tests check output strings - may need custom matchers -4. **Test Isolation**: Ensure tests don't interfere with each other -5. **Temporary Files**: Current tests create temp files - need proper cleanup -6. **Port Management**: HTTP/SSE tests need port management to avoid conflicts - -## Migration Checklist - -- [x] Install vitest dependencies ✅ -- [x] Create vitest.config.ts ✅ -- [x] Create **tests** directory structure ✅ -- [x] Create test helper utilities ✅ - - [x] cli-runner.ts ✅ - - [x] test-server.ts ✅ - - [x] assertions.ts ✅ - - [x] fixtures.ts ✅ -- [x] Migrate cli-tests.js → cli.test.ts ✅ (35 tests) -- [x] Migrate cli-tool-tests.js → tools.test.ts ✅ (21 tests) -- [x] Migrate cli-header-tests.js → headers.test.ts ✅ (7 tests) -- [x] Migrate cli-metadata-tests.js → metadata.test.ts ✅ (22 tests) -- [x] Verify all tests pass ✅ (85 tests total, all passing) -- [x] Update package.json scripts ✅ -- [x] Remove old test files ✅ -- [ ] Update documentation ❌ -- [ ] Test in CI/CD environment ❌ - -## Timeline Estimate - -- Phase 1 (Setup): 1-2 hours -- Phase 2 (Helpers): 2-3 hours -- Phase 3 (Migration): 8-12 hours (depending on test complexity) -- Phase 4 (Improvements): 2-3 hours -- Phase 5 (Cleanup): 1 hour - -**Total: ~14-21 hours** - -## As-Built Notes & Changes from Plan - -### Key Changes from Original Plan - -1. **Coverage Removed**: Coverage was initially configured but removed because integration tests spawn subprocesses, making coverage tracking ineffective. This is expected behavior. - -2. **Test Isolation Fixes**: - - Changed from `Date.now()` to `crypto.randomUUID()` for temp directory names to prevent collisions in parallel execution - - Implemented dynamic port allocation for HTTP/SSE servers to prevent port conflicts - - These fixes were necessary to support parallel test execution - -3. **CLI Flag Added**: All CLI invocations include `--cli` flag to prevent web browser from opening during tests. - -4. **Timeout Handling**: Removed unnecessary timeout overrides - default 12s timeout is sufficient for all tests. - -5. **Test Count**: All 85 tests migrated successfully (35 CLI + 21 Tools + 7 Headers + 22 Metadata) - -### Remaining Tasks - -1. **Remove Old Test Files**: ✅ COMPLETED - All old test scripts removed, `test:old` script removed, `@vitest/coverage-v8` dependency removed -2. **Update Documentation**: ❌ PENDING - README should be updated with new test commands and structure -3. **CI/CD Verification**: ❌ COMPLETED - runs `npm test` - -### Original Notes (Still Relevant) - -- ✅ All old test files removed -- All tests passing with proper isolation for parallel execution -- May want to add test tags for different test categories (e.g., `@integration`, `@unit`) (future enhancement) diff --git a/cli/__tests__/README.md b/cli/__tests__/README.md index 962a610d4..de5144fb3 100644 --- a/cli/__tests__/README.md +++ b/cli/__tests__/README.md @@ -28,7 +28,8 @@ npm run test:cli-metadata # metadata.test.ts The `helpers/` directory contains shared utilities: - `cli-runner.ts` - Spawns CLI as subprocess and captures output -- `test-server.ts` - Manages external MCP test servers (HTTP/SSE) with dynamic port allocation +- `test-mcp-server.ts` - Standalone stdio MCP server script for stdio transport testing +- `instrumented-server.ts` - In-process MCP test server for HTTP/SSE transports with request recording - `assertions.ts` - Custom assertion helpers for CLI output validation - `fixtures.ts` - Test config file generators and temporary directory management @@ -38,8 +39,6 @@ The `helpers/` directory contains shared utilities: - Tests within a file run sequentially (we have isolated config files and ports, so we could get more aggressive if desired) - Config files use `crypto.randomUUID()` for uniqueness in parallel execution - HTTP/SSE servers use dynamic port allocation to avoid conflicts -- Coverage is not used because the code that we want to measure is run by a spawned process, so it can't be tracked by Vi - -## Future - -"Dependence on the everything server is not really a super coupling. Simpler examples for each of the features, self-contained in the test suite would be a better approach." - Cliff Hall +- Coverage is not used because the code that we want to measure is run by a spawned process, so it can't be tracked by Vitest +- /sample-config.json is no longer used by tests - not clear if this file serves some other purpose so leaving it for now +- All tests now use built-in MCP test servers, there are no external dependencies on servers from a registry diff --git a/cli/__tests__/cli.test.ts b/cli/__tests__/cli.test.ts index 324f6dbf8..4b407d3a3 100644 --- a/cli/__tests__/cli.test.ts +++ b/cli/__tests__/cli.test.ts @@ -1,42 +1,50 @@ -import { describe, it, beforeAll, afterAll } from "vitest"; +import { describe, it, beforeAll, afterAll, expect } from "vitest"; import { runCli } from "./helpers/cli-runner.js"; -import { expectCliSuccess, expectCliFailure } from "./helpers/assertions.js"; import { - TEST_SERVER, - getSampleConfigPath, + expectCliSuccess, + expectCliFailure, + expectValidJson, +} from "./helpers/assertions.js"; +import { + NO_SERVER_SENTINEL, + createSampleTestConfig, createTestConfig, createInvalidConfig, deleteConfigFile, + getTestMcpServerCommand, } from "./helpers/fixtures.js"; -import { TestServerManager } from "./helpers/test-server.js"; - -const TEST_CMD = "npx"; -const TEST_ARGS = [TEST_SERVER]; +import { + createInstrumentedServer, + createEchoTool, +} from "./helpers/instrumented-server.js"; describe("CLI Tests", () => { - const serverManager = new TestServerManager(); - - afterAll(() => { - serverManager.cleanup(); - }); - describe("Basic CLI Mode", () => { it("should execute tools/list successfully", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/list", ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("tools"); + expect(Array.isArray(json.tools)).toBe(true); + + // Validate expected tools from test-mcp-server + const toolNames = json.tools.map((tool: any) => tool.name); + expect(toolNames).toContain("echo"); + expect(toolNames).toContain("get-sum"); + expect(toolNames).toContain("get-annotated-message"); }); it("should fail with nonexistent method", async () => { const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + NO_SERVER_SENTINEL, "--cli", "--method", "nonexistent/method", @@ -46,7 +54,7 @@ describe("CLI Tests", () => { }); it("should fail without method", async () => { - const result = await runCli([TEST_CMD, ...TEST_ARGS, "--cli"]); + const result = await runCli([NO_SERVER_SENTINEL, "--cli"]); expectCliFailure(result); }); @@ -54,25 +62,36 @@ describe("CLI Tests", () => { describe("Environment Variables", () => { it("should accept environment variables", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "-e", "KEY1=value1", "-e", "KEY2=value2", "--cli", "--method", - "tools/list", + "resources/read", + "--uri", + "test://env", ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("contents"); + expect(Array.isArray(json.contents)).toBe(true); + expect(json.contents.length).toBeGreaterThan(0); + + // Parse the env vars from the resource + const envVars = JSON.parse(json.contents[0].text); + expect(envVars.KEY1).toBe("value1"); + expect(envVars.KEY2).toBe("value2"); }); it("should reject invalid environment variable format", async () => { const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + NO_SERVER_SENTINEL, "-e", "INVALID_FORMAT", "--cli", @@ -84,65 +103,93 @@ describe("CLI Tests", () => { }); it("should handle environment variable with equals sign in value", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "-e", "API_KEY=abc123=xyz789==", "--cli", "--method", - "tools/list", + "resources/read", + "--uri", + "test://env", ]); expectCliSuccess(result); + const json = expectValidJson(result); + const envVars = JSON.parse(json.contents[0].text); + expect(envVars.API_KEY).toBe("abc123=xyz789=="); }); it("should handle environment variable with base64-encoded value", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "-e", "JWT_TOKEN=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0=", "--cli", "--method", - "tools/list", + "resources/read", + "--uri", + "test://env", ]); expectCliSuccess(result); + const json = expectValidJson(result); + const envVars = JSON.parse(json.contents[0].text); + expect(envVars.JWT_TOKEN).toBe( + "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0=", + ); }); }); describe("Config File", () => { it("should use config file with CLI mode", async () => { - const result = await runCli([ - "--config", - getSampleConfigPath(), - "--server", - "everything", - "--cli", - "--method", - "tools/list", - ]); + const configPath = createSampleTestConfig(); + try { + const result = await runCli([ + "--config", + configPath, + "--server", + "test-stdio", + "--cli", + "--method", + "tools/list", + ]); - expectCliSuccess(result); + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("tools"); + expect(Array.isArray(json.tools)).toBe(true); + expect(json.tools.length).toBeGreaterThan(0); + } finally { + deleteConfigFile(configPath); + } }); it("should fail when using config file without server name", async () => { - const result = await runCli([ - "--config", - getSampleConfigPath(), - "--cli", - "--method", - "tools/list", - ]); + const configPath = createSampleTestConfig(); + try { + const result = await runCli([ + "--config", + configPath, + "--cli", + "--method", + "tools/list", + ]); - expectCliFailure(result); + expectCliFailure(result); + } finally { + deleteConfigFile(configPath); + } }); it("should fail when using server name without config file", async () => { const result = await runCli([ "--server", - "everything", + "test-stdio", "--cli", "--method", "tools/list", @@ -156,7 +203,7 @@ describe("CLI Tests", () => { "--config", "./nonexistent-config.json", "--server", - "everything", + "test-stdio", "--cli", "--method", "tools/list", @@ -173,7 +220,7 @@ describe("CLI Tests", () => { "--config", invalidConfigPath, "--server", - "everything", + "test-stdio", "--cli", "--method", "tools/list", @@ -186,25 +233,31 @@ describe("CLI Tests", () => { }); it("should fail with nonexistent server in config", async () => { - const result = await runCli([ - "--config", - getSampleConfigPath(), - "--server", - "nonexistent", - "--cli", - "--method", - "tools/list", - ]); + const configPath = createSampleTestConfig(); + try { + const result = await runCli([ + "--config", + configPath, + "--server", + "nonexistent", + "--cli", + "--method", + "tools/list", + ]); - expectCliFailure(result); + expectCliFailure(result); + } finally { + deleteConfigFile(configPath); + } }); }); describe("Resource Options", () => { it("should read resource with URI", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "resources/read", @@ -213,12 +266,24 @@ describe("CLI Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("contents"); + expect(Array.isArray(json.contents)).toBe(true); + expect(json.contents.length).toBeGreaterThan(0); + expect(json.contents[0]).toHaveProperty( + "uri", + "demo://resource/static/document/architecture.md", + ); + expect(json.contents[0]).toHaveProperty("mimeType", "text/markdown"); + expect(json.contents[0]).toHaveProperty("text"); + expect(json.contents[0].text).toContain("Architecture Documentation"); }); it("should fail when reading resource without URI", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "resources/read", @@ -230,9 +295,10 @@ describe("CLI Tests", () => { describe("Prompt Options", () => { it("should get prompt by name", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "prompts/get", @@ -241,12 +307,23 @@ describe("CLI Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("messages"); + expect(Array.isArray(json.messages)).toBe(true); + expect(json.messages.length).toBeGreaterThan(0); + expect(json.messages[0]).toHaveProperty("role", "user"); + expect(json.messages[0]).toHaveProperty("content"); + expect(json.messages[0].content).toHaveProperty("type", "text"); + expect(json.messages[0].content.text).toBe( + "This is a simple prompt for testing purposes.", + ); }); it("should get prompt with arguments", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "prompts/get", @@ -258,12 +335,23 @@ describe("CLI Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("messages"); + expect(Array.isArray(json.messages)).toBe(true); + expect(json.messages.length).toBeGreaterThan(0); + expect(json.messages[0]).toHaveProperty("role", "user"); + expect(json.messages[0]).toHaveProperty("content"); + expect(json.messages[0].content).toHaveProperty("type", "text"); + // Verify that the arguments were actually used in the response + expect(json.messages[0].content.text).toContain("city=New York"); + expect(json.messages[0].content.text).toContain("state=NY"); }); it("should fail when getting prompt without name", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "prompts/get", @@ -275,23 +363,40 @@ describe("CLI Tests", () => { describe("Logging Options", () => { it("should set log level", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "logging/setLevel", - "--log-level", - "debug", - ]); + const server = createInstrumentedServer({}); - expectCliSuccess(result); + try { + const port = await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "logging/setLevel", + "--log-level", + "debug", + "--transport", + "http", + ]); + + expectCliSuccess(result); + // Validate the response - logging/setLevel should return an empty result + const json = expectValidJson(result); + expect(json).toEqual({}); + + // Validate that the server actually received and recorded the log level + expect(server.getCurrentLogLevel()).toBe("debug"); + } finally { + await server.stop(); + } }); it("should reject invalid log level", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "logging/setLevel", @@ -305,52 +410,80 @@ describe("CLI Tests", () => { describe("Combined Options", () => { it("should handle config file with environment variables", async () => { - const result = await runCli([ - "--config", - getSampleConfigPath(), - "--server", - "everything", - "-e", - "CLI_ENV_VAR=cli_value", - "--cli", - "--method", - "tools/list", - ]); + const configPath = createSampleTestConfig(); + try { + const result = await runCli([ + "--config", + configPath, + "--server", + "test-stdio", + "-e", + "CLI_ENV_VAR=cli_value", + "--cli", + "--method", + "resources/read", + "--uri", + "test://env", + ]); - expectCliSuccess(result); + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("contents"); + expect(Array.isArray(json.contents)).toBe(true); + expect(json.contents.length).toBeGreaterThan(0); + + // Parse the env vars from the resource + const envVars = JSON.parse(json.contents[0].text); + expect(envVars).toHaveProperty("CLI_ENV_VAR"); + expect(envVars.CLI_ENV_VAR).toBe("cli_value"); + } finally { + deleteConfigFile(configPath); + } }); it("should handle all options together", async () => { - const result = await runCli([ - "--config", - getSampleConfigPath(), - "--server", - "everything", - "-e", - "CLI_ENV_VAR=cli_value", - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=Hello", - "--log-level", - "debug", - ]); + const configPath = createSampleTestConfig(); + try { + const result = await runCli([ + "--config", + configPath, + "--server", + "test-stdio", + "-e", + "CLI_ENV_VAR=cli_value", + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=Hello", + "--log-level", + "debug", + ]); - expectCliSuccess(result); + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content.length).toBeGreaterThan(0); + expect(json.content[0]).toHaveProperty("type", "text"); + expect(json.content[0].text).toBe("Echo: Hello"); + } finally { + deleteConfigFile(configPath); + } }); }); describe("Config Transport Types", () => { it("should work with stdio transport type", async () => { + const { command, args } = getTestMcpServerCommand(); const configPath = createTestConfig({ mcpServers: { "test-stdio": { type: "stdio", - command: "npx", - args: [TEST_SERVER], + command, + args, env: { TEST_ENV: "test-value", }, @@ -358,7 +491,8 @@ describe("CLI Tests", () => { }, }); try { - const result = await runCli([ + // First validate tools/list works + const toolsResult = await runCli([ "--config", configPath, "--server", @@ -368,7 +502,30 @@ describe("CLI Tests", () => { "tools/list", ]); - expectCliSuccess(result); + expectCliSuccess(toolsResult); + const toolsJson = expectValidJson(toolsResult); + expect(toolsJson).toHaveProperty("tools"); + expect(Array.isArray(toolsJson.tools)).toBe(true); + expect(toolsJson.tools.length).toBeGreaterThan(0); + + // Then validate env vars from config are passed to server + const envResult = await runCli([ + "--config", + configPath, + "--server", + "test-stdio", + "--cli", + "--method", + "resources/read", + "--uri", + "test://env", + ]); + + expectCliSuccess(envResult); + const envJson = expectValidJson(envResult); + const envVars = JSON.parse(envJson.contents[0].text); + expect(envVars).toHaveProperty("TEST_ENV"); + expect(envVars.TEST_ENV).toBe("test-value"); } finally { deleteConfigFile(configPath); } @@ -429,11 +586,12 @@ describe("CLI Tests", () => { }); it("should work with legacy config without type field", async () => { + const { command, args } = getTestMcpServerCommand(); const configPath = createTestConfig({ mcpServers: { "test-legacy": { - command: "npx", - args: [TEST_SERVER], + command, + args, env: { LEGACY_ENV: "legacy-value", }, @@ -441,7 +599,8 @@ describe("CLI Tests", () => { }, }); try { - const result = await runCli([ + // First validate tools/list works + const toolsResult = await runCli([ "--config", configPath, "--server", @@ -451,7 +610,30 @@ describe("CLI Tests", () => { "tools/list", ]); - expectCliSuccess(result); + expectCliSuccess(toolsResult); + const toolsJson = expectValidJson(toolsResult); + expect(toolsJson).toHaveProperty("tools"); + expect(Array.isArray(toolsJson.tools)).toBe(true); + expect(toolsJson.tools.length).toBeGreaterThan(0); + + // Then validate env vars from config are passed to server + const envResult = await runCli([ + "--config", + configPath, + "--server", + "test-legacy", + "--cli", + "--method", + "resources/read", + "--uri", + "test://env", + ]); + + expectCliSuccess(envResult); + const envJson = expectValidJson(envResult); + const envVars = JSON.parse(envJson.contents[0].text); + expect(envVars).toHaveProperty("LEGACY_ENV"); + expect(envVars.LEGACY_ENV).toBe("legacy-value"); } finally { deleteConfigFile(configPath); } @@ -460,11 +642,12 @@ describe("CLI Tests", () => { describe("Default Server Selection", () => { it("should auto-select single server", async () => { + const { command, args } = getTestMcpServerCommand(); const configPath = createTestConfig({ mcpServers: { "only-server": { - command: "npx", - args: [TEST_SERVER], + command, + args, }, }, }); @@ -478,17 +661,22 @@ describe("CLI Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("tools"); + expect(Array.isArray(json.tools)).toBe(true); + expect(json.tools.length).toBeGreaterThan(0); } finally { deleteConfigFile(configPath); } }); it("should require explicit server selection even with default-server key (multiple servers)", async () => { + const { command, args } = getTestMcpServerCommand(); const configPath = createTestConfig({ mcpServers: { "default-server": { - command: "npx", - args: [TEST_SERVER], + command, + args, }, "other-server": { command: "node", @@ -512,11 +700,12 @@ describe("CLI Tests", () => { }); it("should require explicit server selection with multiple servers", async () => { + const { command, args } = getTestMcpServerCommand(); const configPath = createTestConfig({ mcpServers: { server1: { - command: "npx", - args: [TEST_SERVER], + command, + args, }, server2: { command: "node", @@ -541,71 +730,110 @@ describe("CLI Tests", () => { }); describe("HTTP Transport", () => { - let httpPort: number; - - beforeAll(async () => { - // Start HTTP server for these tests - get the actual port used - const serverInfo = await serverManager.startHttpServer(3001); - httpPort = serverInfo.port; - // Give extra time for server to be fully ready - await new Promise((resolve) => setTimeout(resolve, 2000)); - }); + it("should infer HTTP transport from URL ending with /mcp", async () => { + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); - afterAll(async () => { - // Cleanup handled by serverManager - serverManager.cleanup(); - // Give time for cleanup - await new Promise((resolve) => setTimeout(resolve, 1000)); - }); + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; - it("should infer HTTP transport from URL ending with /mcp", async () => { - const result = await runCli([ - `http://127.0.0.1:${httpPort}/mcp`, - "--cli", - "--method", - "tools/list", - ]); + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/list", + ]); - expectCliSuccess(result); + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("tools"); + expect(Array.isArray(json.tools)).toBe(true); + expect(json.tools.length).toBeGreaterThan(0); + } finally { + await server.stop(); + } }); it("should work with explicit --transport http flag", async () => { - const result = await runCli([ - `http://127.0.0.1:${httpPort}/mcp`, - "--transport", - "http", - "--cli", - "--method", - "tools/list", - ]); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); - expectCliSuccess(result); + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--transport", + "http", + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("tools"); + expect(Array.isArray(json.tools)).toBe(true); + expect(json.tools.length).toBeGreaterThan(0); + } finally { + await server.stop(); + } }); it("should work with explicit transport flag and URL suffix", async () => { - const result = await runCli([ - `http://127.0.0.1:${httpPort}/mcp`, - "--transport", - "http", - "--cli", - "--method", - "tools/list", - ]); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); - expectCliSuccess(result); + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--transport", + "http", + "--cli", + "--method", + "tools/list", + ]); + + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("tools"); + expect(Array.isArray(json.tools)).toBe(true); + expect(json.tools.length).toBeGreaterThan(0); + } finally { + await server.stop(); + } }); it("should fail when SSE transport is given to HTTP server", async () => { - const result = await runCli([ - `http://127.0.0.1:${httpPort}`, - "--transport", - "sse", - "--cli", - "--method", - "tools/list", - ]); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); - expectCliFailure(result); + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--transport", + "sse", + "--cli", + "--method", + "tools/list", + ]); + + expectCliFailure(result); + } finally { + await server.stop(); + } }); it("should fail when HTTP transport is specified without URL", async () => { diff --git a/cli/__tests__/headers.test.ts b/cli/__tests__/headers.test.ts index 336ce51b0..d2240f7ce 100644 --- a/cli/__tests__/headers.test.ts +++ b/cli/__tests__/headers.test.ts @@ -3,75 +3,153 @@ import { runCli } from "./helpers/cli-runner.js"; import { expectCliFailure, expectOutputContains, + expectCliSuccess, } from "./helpers/assertions.js"; +import { + createInstrumentedServer, + createEchoTool, +} from "./helpers/instrumented-server.js"; describe("Header Parsing and Validation", () => { describe("Valid Headers", () => { - it("should parse valid single header (connection will fail)", async () => { - const result = await runCli([ - "https://example.com", - "--cli", - "--method", - "tools/list", - "--transport", - "http", - "--header", - "Authorization: Bearer token123", - ]); + it("should parse valid single header and send it to server", async () => { + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); - // Header parsing should succeed, but connection will fail - expectCliFailure(result); + try { + const port = await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/list", + "--transport", + "http", + "--header", + "Authorization: Bearer token123", + ]); + + expectCliSuccess(result); + + // Check that the server received the request with the correct headers + const recordedRequests = server.getRecordedRequests(); + expect(recordedRequests.length).toBeGreaterThan(0); + + // Find the tools/list request (should be the last one) + const toolsListRequest = recordedRequests[recordedRequests.length - 1]; + expect(toolsListRequest).toBeDefined(); + expect(toolsListRequest.method).toBe("tools/list"); + + // Express normalizes headers to lowercase + expect(toolsListRequest.headers).toHaveProperty("authorization"); + expect(toolsListRequest.headers?.authorization).toBe("Bearer token123"); + } finally { + await server.stop(); + } }); it("should parse multiple headers", async () => { - const result = await runCli([ - "https://example.com", - "--cli", - "--method", - "tools/list", - "--transport", - "http", - "--header", - "Authorization: Bearer token123", - "--header", - "X-API-Key: secret123", - ]); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + const port = await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; - // Header parsing should succeed, but connection will fail - // Note: The CLI may exit with 0 even if connection fails, so we just check it doesn't crash - expect(result.exitCode).not.toBeNull(); + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/list", + "--transport", + "http", + "--header", + "Authorization: Bearer token123", + "--header", + "X-API-Key: secret123", + ]); + + expectCliSuccess(result); + + const recordedRequests = server.getRecordedRequests(); + const toolsListRequest = recordedRequests[recordedRequests.length - 1]; + expect(toolsListRequest.method).toBe("tools/list"); + expect(toolsListRequest.headers?.authorization).toBe("Bearer token123"); + expect(toolsListRequest.headers?.["x-api-key"]).toBe("secret123"); + } finally { + await server.stop(); + } }); it("should handle header with colons in value", async () => { - const result = await runCli([ - "https://example.com", - "--cli", - "--method", - "tools/list", - "--transport", - "http", - "--header", - "X-Time: 2023:12:25:10:30:45", - ]); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + const port = await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/list", + "--transport", + "http", + "--header", + "X-Time: 2023:12:25:10:30:45", + ]); - // Header parsing should succeed, but connection will fail - expect(result.exitCode).not.toBeNull(); + expectCliSuccess(result); + + const recordedRequests = server.getRecordedRequests(); + const toolsListRequest = recordedRequests[recordedRequests.length - 1]; + expect(toolsListRequest.method).toBe("tools/list"); + expect(toolsListRequest.headers?.["x-time"]).toBe( + "2023:12:25:10:30:45", + ); + } finally { + await server.stop(); + } }); it("should handle whitespace in headers", async () => { - const result = await runCli([ - "https://example.com", - "--cli", - "--method", - "tools/list", - "--transport", - "http", - "--header", - " X-Header : value with spaces ", - ]); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + const port = await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/list", + "--transport", + "http", + "--header", + " X-Header : value with spaces ", + ]); + + expectCliSuccess(result); - // Header parsing should succeed, but connection will fail - expect(result.exitCode).not.toBeNull(); + const recordedRequests = server.getRecordedRequests(); + const toolsListRequest = recordedRequests[recordedRequests.length - 1]; + expect(toolsListRequest.method).toBe("tools/list"); + // Header values should be trimmed by the CLI parser + expect(toolsListRequest.headers?.["x-header"]).toBe( + "value with spaces", + ); + } finally { + await server.stop(); + } }); }); diff --git a/cli/__tests__/helpers/fixtures.ts b/cli/__tests__/helpers/fixtures.ts index ad0c49c6c..9107df221 100644 --- a/cli/__tests__/helpers/fixtures.ts +++ b/cli/__tests__/helpers/fixtures.ts @@ -6,15 +6,38 @@ import { fileURLToPath } from "url"; import { dirname } from "path"; const __dirname = dirname(fileURLToPath(import.meta.url)); -const PROJECT_ROOT = path.resolve(__dirname, "../../../"); -export const TEST_SERVER = "@modelcontextprotocol/server-everything@2026.1.14"; +/** + * Sentinel value for tests that don't need a real server + * (tests that expect failure before connecting) + */ +export const NO_SERVER_SENTINEL = "invalid-command-that-does-not-exist"; /** - * Get the sample config file path + * Create a sample test config with test-stdio and test-http servers + * Returns a temporary config file path that should be cleaned up with deleteConfigFile() + * @param httpUrl - Optional full URL (including /mcp path) for test-http server. + * If not provided, uses a placeholder URL. The test-http server exists + * to test server selection logic and may not actually be used. */ -export function getSampleConfigPath(): string { - return path.join(PROJECT_ROOT, "sample-config.json"); +export function createSampleTestConfig(httpUrl?: string): string { + const { command, args } = getTestMcpServerCommand(); + return createTestConfig({ + mcpServers: { + "test-stdio": { + type: "stdio", + command, + args, + env: { + HELLO: "Hello MCP!", + }, + }, + "test-http": { + type: "streamable-http", + url: httpUrl || "http://localhost:3001/mcp", + }, + }, + }); } /** @@ -67,3 +90,20 @@ export function createInvalidConfig(): string { export function deleteConfigFile(configPath: string): void { cleanupTempDir(path.dirname(configPath)); } + +/** + * Get the path to the test MCP server script + */ +export function getTestMcpServerPath(): string { + return path.resolve(__dirname, "test-mcp-server.ts"); +} + +/** + * Get the command and args to run the test MCP server + */ +export function getTestMcpServerCommand(): { command: string; args: string[] } { + return { + command: "tsx", + args: [getTestMcpServerPath()], + }; +} diff --git a/cli/__tests__/helpers/instrumented-server.ts b/cli/__tests__/helpers/instrumented-server.ts new file mode 100644 index 000000000..32ad2904f --- /dev/null +++ b/cli/__tests__/helpers/instrumented-server.ts @@ -0,0 +1,517 @@ +import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; +import { StreamableHTTPServerTransport } from "@modelcontextprotocol/sdk/server/streamableHttp.js"; +import { SSEServerTransport } from "@modelcontextprotocol/sdk/server/sse.js"; +import { SetLevelRequestSchema } from "@modelcontextprotocol/sdk/types.js"; +import type { Request, Response } from "express"; +import express from "express"; +import { createServer as createHttpServer, Server as HttpServer } from "http"; +import { createServer as createNetServer } from "net"; + +export interface ToolDefinition { + name: string; + description: string; + inputSchema: Record; // JSON Schema + handler: (params: Record) => Promise; +} + +export interface ResourceDefinition { + uri: string; + name: string; + description?: string; + mimeType?: string; + text?: string; +} + +export interface PromptDefinition { + name: string; + description?: string; + arguments?: Array<{ + name: string; + description?: string; + required?: boolean; + }>; +} + +export interface ServerConfig { + tools?: ToolDefinition[]; + resources?: ResourceDefinition[]; + prompts?: PromptDefinition[]; +} + +export interface RecordedRequest { + method: string; + params?: any; + headers?: Record; + metadata?: Record; + response: any; + timestamp: number; +} + +/** + * Find an available port starting from the given port + */ +async function findAvailablePort(startPort: number): Promise { + return new Promise((resolve, reject) => { + const server = createNetServer(); + server.listen(startPort, () => { + const port = (server.address() as { port: number })?.port; + server.close(() => resolve(port || startPort)); + }); + server.on("error", (err: NodeJS.ErrnoException) => { + if (err.code === "EADDRINUSE") { + // Try next port + findAvailablePort(startPort + 1) + .then(resolve) + .catch(reject); + } else { + reject(err); + } + }); + }); +} + +/** + * Extract headers from Express request + */ +function extractHeaders(req: Request): Record { + const headers: Record = {}; + for (const [key, value] of Object.entries(req.headers)) { + if (typeof value === "string") { + headers[key] = value; + } else if (Array.isArray(value) && value.length > 0) { + headers[key] = value[value.length - 1]; + } + } + return headers; +} + +export class InstrumentedServer { + private mcpServer: McpServer; + private config: ServerConfig; + private recordedRequests: RecordedRequest[] = []; + private httpServer?: HttpServer; + private transport?: StreamableHTTPServerTransport | SSEServerTransport; + private port?: number; + private url?: string; + private currentRequestHeaders?: Record; + private currentLogLevel: string | null = null; + + constructor(config: ServerConfig) { + this.config = config; + this.mcpServer = new McpServer( + { + name: "instrumented-test-server", + version: "1.0.0", + }, + { + capabilities: { + tools: {}, + resources: {}, + prompts: {}, + logging: {}, + }, + }, + ); + + this.setupHandlers(); + this.setupLoggingHandler(); + } + + private setupHandlers() { + // Set up tools + if (this.config.tools && this.config.tools.length > 0) { + for (const tool of this.config.tools) { + this.mcpServer.registerTool( + tool.name, + { + description: tool.description, + inputSchema: tool.inputSchema, + }, + async (args) => { + const result = await tool.handler(args as Record); + return { + content: [{ type: "text", text: JSON.stringify(result) }], + }; + }, + ); + } + } + + // Set up resources + if (this.config.resources && this.config.resources.length > 0) { + for (const resource of this.config.resources) { + this.mcpServer.registerResource( + resource.name, + resource.uri, + { + description: resource.description, + mimeType: resource.mimeType, + }, + async () => { + return { + contents: [ + { + uri: resource.uri, + mimeType: resource.mimeType || "text/plain", + text: resource.text || "", + }, + ], + }; + }, + ); + } + } + + // Set up prompts + if (this.config.prompts && this.config.prompts.length > 0) { + for (const prompt of this.config.prompts) { + // Convert arguments array to a schema object if provided + const argsSchema = prompt.arguments + ? prompt.arguments.reduce( + (acc, arg) => { + acc[arg.name] = { + type: "string", + description: arg.description, + }; + return acc; + }, + {} as Record, + ) + : undefined; + + this.mcpServer.registerPrompt( + prompt.name, + { + description: prompt.description, + argsSchema, + }, + async (args) => { + // Return a simple prompt response + return { + messages: [ + { + role: "user", + content: { + type: "text", + text: `Prompt: ${prompt.name}${args ? ` with args: ${JSON.stringify(args)}` : ""}`, + }, + }, + ], + }; + }, + ); + } + } + } + + private setupLoggingHandler() { + // Intercept logging/setLevel requests to track the level + this.mcpServer.server.setRequestHandler( + SetLevelRequestSchema, + async (request) => { + this.currentLogLevel = request.params.level; + // Return empty result as per MCP spec + return {}; + }, + ); + } + + /** + * Start the server with the specified transport + */ + async start( + transport: "http" | "sse", + requestedPort?: number, + ): Promise { + const port = requestedPort + ? await findAvailablePort(requestedPort) + : await findAvailablePort(transport === "http" ? 3001 : 3000); + + this.port = port; + this.url = `http://localhost:${port}`; + + if (transport === "http") { + return this.startHttp(port); + } else { + return this.startSse(port); + } + } + + private async startHttp(port: number): Promise { + const app = express(); + app.use(express.json()); + + // Create HTTP server + this.httpServer = createHttpServer(app); + + // Create StreamableHTTP transport + this.transport = new StreamableHTTPServerTransport({}); + + // Set up Express route to handle MCP requests + app.post("/mcp", async (req: Request, res: Response) => { + // Capture headers for this request + this.currentRequestHeaders = extractHeaders(req); + + try { + await (this.transport as StreamableHTTPServerTransport).handleRequest( + req, + res, + req.body, + ); + } catch (error) { + res.status(500).json({ + error: error instanceof Error ? error.message : String(error), + }); + } + }); + + // Intercept messages to record them + const originalOnMessage = this.transport.onmessage; + this.transport.onmessage = async (message) => { + const timestamp = Date.now(); + const method = + "method" in message && typeof message.method === "string" + ? message.method + : "unknown"; + const params = "params" in message ? message.params : undefined; + + try { + // Extract metadata from params if present + const metadata = + params && typeof params === "object" && "_meta" in params + ? ((params as any)._meta as Record) + : undefined; + + // Let the server handle the message + if (originalOnMessage) { + await originalOnMessage.call(this.transport, message); + } + + // Record successful request (response will be sent by transport) + // Note: We can't easily capture the response here, so we'll record + // that the request was processed + this.recordedRequests.push({ + method, + params, + headers: { ...this.currentRequestHeaders }, + metadata: metadata ? { ...metadata } : undefined, + response: { processed: true }, + timestamp, + }); + } catch (error) { + // Extract metadata from params if present + const metadata = + params && typeof params === "object" && "_meta" in params + ? ((params as any)._meta as Record) + : undefined; + + // Record error + this.recordedRequests.push({ + method, + params, + headers: { ...this.currentRequestHeaders }, + metadata: metadata ? { ...metadata } : undefined, + response: { + error: error instanceof Error ? error.message : String(error), + }, + timestamp, + }); + throw error; + } + }; + + // Connect transport to server + await this.mcpServer.connect(this.transport); + + // Start listening + return new Promise((resolve, reject) => { + this.httpServer!.listen(port, () => { + resolve(port); + }); + this.httpServer!.on("error", reject); + }); + } + + private async startSse(port: number): Promise { + const app = express(); + app.use(express.json()); + + // Create HTTP server + this.httpServer = createHttpServer(app); + + // For SSE, we need to set up an Express route that creates the transport per request + // This is a simplified version - SSE transport is created per connection + app.get("/mcp", async (req: Request, res: Response) => { + this.currentRequestHeaders = extractHeaders(req); + const sseTransport = new SSEServerTransport("/mcp", res); + + // Intercept messages + const originalOnMessage = sseTransport.onmessage; + sseTransport.onmessage = async (message) => { + const timestamp = Date.now(); + const method = + "method" in message && typeof message.method === "string" + ? message.method + : "unknown"; + const params = "params" in message ? message.params : undefined; + + try { + // Extract metadata from params if present + const metadata = + params && typeof params === "object" && "_meta" in params + ? ((params as any)._meta as Record) + : undefined; + + if (originalOnMessage) { + await originalOnMessage.call(sseTransport, message); + } + + this.recordedRequests.push({ + method, + params, + headers: { ...this.currentRequestHeaders }, + metadata: metadata ? { ...metadata } : undefined, + response: { processed: true }, + timestamp, + }); + } catch (error) { + // Extract metadata from params if present + const metadata = + params && typeof params === "object" && "_meta" in params + ? ((params as any)._meta as Record) + : undefined; + + this.recordedRequests.push({ + method, + params, + headers: { ...this.currentRequestHeaders }, + metadata: metadata ? { ...metadata } : undefined, + response: { + error: error instanceof Error ? error.message : String(error), + }, + timestamp, + }); + throw error; + } + }; + + await this.mcpServer.connect(sseTransport); + await sseTransport.start(); + }); + + // Note: SSE transport is created per request, so we don't store a single instance + this.transport = undefined; + + // Start listening + return new Promise((resolve, reject) => { + this.httpServer!.listen(port, () => { + resolve(port); + }); + this.httpServer!.on("error", reject); + }); + } + + /** + * Stop the server + */ + async stop(): Promise { + await this.mcpServer.close(); + + if (this.transport) { + await this.transport.close(); + this.transport = undefined; + } + + if (this.httpServer) { + return new Promise((resolve) => { + this.httpServer!.close(() => { + this.httpServer = undefined; + resolve(); + }); + }); + } + } + + /** + * Get all recorded requests + */ + getRecordedRequests(): RecordedRequest[] { + return [...this.recordedRequests]; + } + + /** + * Clear recorded requests + */ + clearRecordings(): void { + this.recordedRequests = []; + } + + /** + * Get the server URL + */ + getUrl(): string { + if (!this.url) { + throw new Error("Server not started"); + } + return this.url; + } + + /** + * Get the most recent log level that was set + */ + getCurrentLogLevel(): string | null { + return this.currentLogLevel; + } +} + +/** + * Create an instrumented MCP server for testing + */ +export function createInstrumentedServer( + config: ServerConfig, +): InstrumentedServer { + return new InstrumentedServer(config); +} + +/** + * Create a simple "add" tool definition that adds two numbers + */ +export function createAddTool(): ToolDefinition { + return { + name: "add", + description: "Add two numbers together", + inputSchema: { + type: "object", + properties: { + a: { type: "number", description: "First number" }, + b: { type: "number", description: "Second number" }, + }, + required: ["a", "b"], + }, + handler: async (params: Record) => { + const a = params.a as number; + const b = params.b as number; + return { result: a + b }; + }, + }; +} + +/** + * Create a simple "echo" tool definition that echoes back the input + */ +export function createEchoTool(): ToolDefinition { + return { + name: "echo", + description: "Echo back the input message", + inputSchema: { + type: "object", + properties: { + message: { type: "string", description: "Message to echo back" }, + }, + required: ["message"], + }, + handler: async (params: Record) => { + return { message: `Echo: ${params.message as string}` }; + }, + }; +} diff --git a/cli/__tests__/helpers/test-mcp-server.ts b/cli/__tests__/helpers/test-mcp-server.ts new file mode 100644 index 000000000..8755e41d6 --- /dev/null +++ b/cli/__tests__/helpers/test-mcp-server.ts @@ -0,0 +1,269 @@ +#!/usr/bin/env node + +/** + * Simple test MCP server for stdio transport testing + * Provides basic tools, resources, and prompts for CLI validation + */ + +import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; +import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js"; +import * as z from "zod/v4"; + +const server = new McpServer( + { + name: "test-mcp-server", + version: "1.0.0", + }, + { + capabilities: { + tools: {}, + resources: {}, + prompts: {}, + logging: {}, + }, + }, +); + +// Register echo tool +server.registerTool( + "echo", + { + description: "Echo back the input message", + inputSchema: { + message: z.string().describe("Message to echo back"), + }, + }, + async ({ message }) => { + return { + content: [ + { + type: "text", + text: `Echo: ${message}`, + }, + ], + }; + }, +); + +// Register get-sum tool (used by tests) +server.registerTool( + "get-sum", + { + description: "Get the sum of two numbers", + inputSchema: { + a: z.number().describe("First number"), + b: z.number().describe("Second number"), + }, + }, + async ({ a, b }) => { + return { + content: [ + { + type: "text", + text: JSON.stringify({ result: a + b }), + }, + ], + }; + }, +); + +// Register get-annotated-message tool (used by tests) +server.registerTool( + "get-annotated-message", + { + description: "Get an annotated message", + inputSchema: { + messageType: z + .enum(["success", "error", "warning", "info"]) + .describe("Type of message"), + includeImage: z + .boolean() + .optional() + .describe("Whether to include an image"), + }, + }, + async ({ messageType, includeImage }) => { + const message = `This is a ${messageType} message`; + const content: Array< + | { type: "text"; text: string } + | { type: "image"; data: string; mimeType: string } + > = [ + { + type: "text", + text: message, + }, + ]; + + if (includeImage) { + content.push({ + type: "image", + data: "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==", // 1x1 transparent PNG + mimeType: "image/png", + }); + } + + return { content }; + }, +); + +// Register simple-prompt +server.registerPrompt( + "simple-prompt", + { + description: "A simple prompt for testing", + }, + async () => { + return { + messages: [ + { + role: "user", + content: { + type: "text", + text: "This is a simple prompt for testing purposes.", + }, + }, + ], + }; + }, +); + +// Register args-prompt (accepts arguments) +server.registerPrompt( + "args-prompt", + { + description: "A prompt that accepts arguments for testing", + argsSchema: { + city: z.string().describe("City name"), + state: z.string().describe("State name"), + }, + }, + async ({ city, state }) => { + return { + messages: [ + { + role: "user", + content: { + type: "text", + text: `This is a prompt with arguments: city=${city}, state=${state}`, + }, + }, + ], + }; + }, +); + +// Register demo resource +server.registerResource( + "architecture", + "demo://resource/static/document/architecture.md", + { + description: "Architecture documentation", + mimeType: "text/markdown", + }, + async () => { + return { + contents: [ + { + uri: "demo://resource/static/document/architecture.md", + mimeType: "text/markdown", + text: `# Architecture Documentation + +This is a test resource for the MCP test server. + +## Overview + +This resource is used for testing resource reading functionality in the CLI. + +## Sections + +- Introduction +- Design +- Implementation +- Testing + +## Notes + +This is a static resource provided by the test MCP server. +`, + }, + ], + }; + }, +); + +// Register test resources for verifying server startup state +// CWD resource - exposes current working directory +server.registerResource( + "test-cwd", + "test://cwd", + { + description: "Current working directory of the test server", + mimeType: "text/plain", + }, + async () => { + return { + contents: [ + { + uri: "test://cwd", + mimeType: "text/plain", + text: process.cwd(), + }, + ], + }; + }, +); + +// Environment variables resource - exposes all env vars as JSON +server.registerResource( + "test-env", + "test://env", + { + description: "Environment variables available to the test server", + mimeType: "application/json", + }, + async () => { + return { + contents: [ + { + uri: "test://env", + mimeType: "application/json", + text: JSON.stringify(process.env, null, 2), + }, + ], + }; + }, +); + +// Command-line arguments resource - exposes process.argv +server.registerResource( + "test-argv", + "test://argv", + { + description: "Command-line arguments the test server was started with", + mimeType: "application/json", + }, + async () => { + return { + contents: [ + { + uri: "test://argv", + mimeType: "application/json", + text: JSON.stringify(process.argv, null, 2), + }, + ], + }; + }, +); + +// Connect to stdio transport and start +const transport = new StdioServerTransport(); +server + .connect(transport) + .then(() => { + // Server is now running and listening on stdio + // Keep the process alive + }) + .catch((error) => { + console.error("Failed to start test MCP server:", error); + process.exit(1); + }); diff --git a/cli/__tests__/helpers/test-server.ts b/cli/__tests__/helpers/test-server.ts deleted file mode 100644 index bd6d43a93..000000000 --- a/cli/__tests__/helpers/test-server.ts +++ /dev/null @@ -1,97 +0,0 @@ -import { spawn, ChildProcess } from "child_process"; -import { createServer } from "net"; - -export const TEST_SERVER = "@modelcontextprotocol/server-everything@2026.1.14"; - -/** - * Find an available port starting from the given port - */ -async function findAvailablePort(startPort: number): Promise { - return new Promise((resolve, reject) => { - const server = createServer(); - server.listen(startPort, () => { - const port = (server.address() as { port: number })?.port; - server.close(() => resolve(port || startPort)); - }); - server.on("error", (err: NodeJS.ErrnoException) => { - if (err.code === "EADDRINUSE") { - // Try next port - findAvailablePort(startPort + 1) - .then(resolve) - .catch(reject); - } else { - reject(err); - } - }); - }); -} - -export class TestServerManager { - private servers: ChildProcess[] = []; - - /** - * Start an HTTP server for testing - * Automatically finds an available port if the requested port is in use - */ - async startHttpServer( - requestedPort: number = 3001, - ): Promise<{ process: ChildProcess; port: number }> { - // Find an available port (handles parallel test execution) - const port = await findAvailablePort(requestedPort); - - // Set PORT environment variable so the server uses the specific port - const server = spawn("npx", [TEST_SERVER, "streamableHttp"], { - detached: true, - stdio: "ignore", - env: { ...process.env, PORT: String(port) }, - }); - - this.servers.push(server); - - // Wait for server to start - await new Promise((resolve) => setTimeout(resolve, 5000)); - - return { process: server, port }; - } - - /** - * Start an SSE server for testing - * Automatically finds an available port if the requested port is in use - */ - async startSseServer( - requestedPort: number = 3000, - ): Promise<{ process: ChildProcess; port: number }> { - // Find an available port (handles parallel test execution) - const port = await findAvailablePort(requestedPort); - - // Set PORT environment variable so the server uses the specific port - const server = spawn("npx", [TEST_SERVER, "sse"], { - detached: true, - stdio: "ignore", - env: { ...process.env, PORT: String(port) }, - }); - - this.servers.push(server); - - // Wait for server to start - await new Promise((resolve) => setTimeout(resolve, 3000)); - - return { process: server, port }; - } - - /** - * Cleanup all running servers - */ - cleanup() { - this.servers.forEach((server) => { - try { - if (server.pid) { - process.kill(-server.pid); - } - } catch (e) { - // Server may already be dead - } - }); - this.servers = []; - } -} diff --git a/cli/__tests__/metadata.test.ts b/cli/__tests__/metadata.test.ts index 4912aefe8..57edff894 100644 --- a/cli/__tests__/metadata.test.ts +++ b/cli/__tests__/metadata.test.ts @@ -1,238 +1,567 @@ import { describe, it, expect } from "vitest"; import { runCli } from "./helpers/cli-runner.js"; -import { expectCliSuccess, expectCliFailure } from "./helpers/assertions.js"; -import { TEST_SERVER } from "./helpers/fixtures.js"; - -const TEST_CMD = "npx"; -const TEST_ARGS = [TEST_SERVER]; +import { + expectCliSuccess, + expectCliFailure, + expectValidJson, +} from "./helpers/assertions.js"; +import { + createInstrumentedServer, + createEchoTool, + createAddTool, +} from "./helpers/instrumented-server.js"; +import { NO_SERVER_SENTINEL } from "./helpers/fixtures.js"; describe("Metadata Tests", () => { describe("General Metadata", () => { it("should work with tools/list", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - "client=test-client", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/list", + "--metadata", + "client=test-client", + "--transport", + "http", + ]); + + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("tools"); + + // Validate metadata was sent + const recordedRequests = server.getRecordedRequests(); + const toolsListRequest = recordedRequests.find( + (r) => r.method === "tools/list", + ); + expect(toolsListRequest).toBeDefined(); + expect(toolsListRequest?.metadata).toEqual({ client: "test-client" }); + } finally { + await server.stop(); + } }); it("should work with resources/list", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "resources/list", - "--metadata", - "client=test-client", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + resources: [ + { + uri: "test://resource", + name: "test-resource", + text: "test content", + }, + ], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "resources/list", + "--metadata", + "client=test-client", + "--transport", + "http", + ]); + + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("resources"); + + // Validate metadata was sent + const recordedRequests = server.getRecordedRequests(); + const resourcesListRequest = recordedRequests.find( + (r) => r.method === "resources/list", + ); + expect(resourcesListRequest).toBeDefined(); + expect(resourcesListRequest?.metadata).toEqual({ + client: "test-client", + }); + } finally { + await server.stop(); + } }); it("should work with prompts/list", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "prompts/list", - "--metadata", - "client=test-client", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + prompts: [ + { + name: "test-prompt", + description: "A test prompt", + }, + ], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "prompts/list", + "--metadata", + "client=test-client", + "--transport", + "http", + ]); + + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("prompts"); + + // Validate metadata was sent + const recordedRequests = server.getRecordedRequests(); + const promptsListRequest = recordedRequests.find( + (r) => r.method === "prompts/list", + ); + expect(promptsListRequest).toBeDefined(); + expect(promptsListRequest?.metadata).toEqual({ + client: "test-client", + }); + } finally { + await server.stop(); + } }); it("should work with resources/read", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "resources/read", - "--uri", - "demo://resource/static/document/architecture.md", - "--metadata", - "client=test-client", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + resources: [ + { + uri: "test://resource", + name: "test-resource", + text: "test content", + }, + ], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "resources/read", + "--uri", + "test://resource", + "--metadata", + "client=test-client", + "--transport", + "http", + ]); + + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("contents"); + + // Validate metadata was sent + const recordedRequests = server.getRecordedRequests(); + const readRequest = recordedRequests.find( + (r) => r.method === "resources/read", + ); + expect(readRequest).toBeDefined(); + expect(readRequest?.metadata).toEqual({ client: "test-client" }); + } finally { + await server.stop(); + } }); it("should work with prompts/get", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "prompts/get", - "--prompt-name", - "simple-prompt", - "--metadata", - "client=test-client", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + prompts: [ + { + name: "test-prompt", + description: "A test prompt", + }, + ], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "prompts/get", + "--prompt-name", + "test-prompt", + "--metadata", + "client=test-client", + "--transport", + "http", + ]); + + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("messages"); + + // Validate metadata was sent + const recordedRequests = server.getRecordedRequests(); + const getPromptRequest = recordedRequests.find( + (r) => r.method === "prompts/get", + ); + expect(getPromptRequest).toBeDefined(); + expect(getPromptRequest?.metadata).toEqual({ client: "test-client" }); + } finally { + await server.stop(); + } }); }); describe("Tool-Specific Metadata", () => { it("should work with tools/call", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=hello world", - "--tool-metadata", - "client=test-client", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=hello world", + "--tool-metadata", + "client=test-client", + "--transport", + "http", + ]); + + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + + // Validate metadata was sent + const recordedRequests = server.getRecordedRequests(); + const toolCallRequest = recordedRequests.find( + (r) => r.method === "tools/call", + ); + expect(toolCallRequest).toBeDefined(); + expect(toolCallRequest?.metadata).toEqual({ client: "test-client" }); + } finally { + await server.stop(); + } }); it("should work with complex tool", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "get-sum", - "--tool-arg", - "a=10", - "b=20", - "--tool-metadata", - "client=test-client", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createAddTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/call", + "--tool-name", + "add", + "--tool-arg", + "a=10", + "b=20", + "--tool-metadata", + "client=test-client", + "--transport", + "http", + ]); + + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + + // Validate metadata was sent + const recordedRequests = server.getRecordedRequests(); + const toolCallRequest = recordedRequests.find( + (r) => r.method === "tools/call", + ); + expect(toolCallRequest).toBeDefined(); + expect(toolCallRequest?.metadata).toEqual({ client: "test-client" }); + } finally { + await server.stop(); + } }); }); describe("Metadata Merging", () => { it("should merge general and tool-specific metadata (tool-specific overrides)", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=hello world", - "--metadata", - "client=general-client", - "--tool-metadata", - "client=test-client", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=hello world", + "--metadata", + "client=general-client", + "shared_key=shared_value", + "--tool-metadata", + "client=tool-specific-client", + "--transport", + "http", + ]); + + expectCliSuccess(result); + + // Validate metadata was merged correctly (tool-specific overrides general) + const recordedRequests = server.getRecordedRequests(); + const toolCallRequest = recordedRequests.find( + (r) => r.method === "tools/call", + ); + expect(toolCallRequest).toBeDefined(); + expect(toolCallRequest?.metadata).toEqual({ + client: "tool-specific-client", // Tool-specific overrides general + shared_key: "shared_value", // General metadata is preserved + }); + } finally { + await server.stop(); + } }); }); describe("Metadata Parsing", () => { it("should handle numeric values", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - "integer_value=42", - "decimal_value=3.14159", - "negative_value=-10", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/list", + "--metadata", + "integer_value=42", + "decimal_value=3.14159", + "negative_value=-10", + "--transport", + "http", + ]); + + expectCliSuccess(result); + + // Validate metadata values are sent as strings + const recordedRequests = server.getRecordedRequests(); + const toolsListRequest = recordedRequests.find( + (r) => r.method === "tools/list", + ); + expect(toolsListRequest).toBeDefined(); + expect(toolsListRequest?.metadata).toEqual({ + integer_value: "42", + decimal_value: "3.14159", + negative_value: "-10", + }); + } finally { + await server.stop(); + } }); it("should handle JSON values", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - 'json_object="{\\"key\\":\\"value\\"}"', - 'json_array="[1,2,3]"', - 'json_string="\\"quoted\\""', - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/list", + "--metadata", + 'json_object="{\\"key\\":\\"value\\"}"', + 'json_array="[1,2,3]"', + 'json_string="\\"quoted\\""', + "--transport", + "http", + ]); + + expectCliSuccess(result); + + // Validate JSON values are sent as strings + const recordedRequests = server.getRecordedRequests(); + const toolsListRequest = recordedRequests.find( + (r) => r.method === "tools/list", + ); + expect(toolsListRequest).toBeDefined(); + expect(toolsListRequest?.metadata).toEqual({ + json_object: '{"key":"value"}', + json_array: "[1,2,3]", + json_string: '"quoted"', + }); + } finally { + await server.stop(); + } }); it("should handle special characters", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - "unicode=🚀🎉✨", - "special_chars=!@#$%^&*()", - "spaces=hello world with spaces", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/list", + "--metadata", + "unicode=🚀🎉✨", + "special_chars=!@#$%^&*()", + "spaces=hello world with spaces", + "--transport", + "http", + ]); + + expectCliSuccess(result); + + // Validate special characters are preserved + const recordedRequests = server.getRecordedRequests(); + const toolsListRequest = recordedRequests.find( + (r) => r.method === "tools/list", + ); + expect(toolsListRequest).toBeDefined(); + expect(toolsListRequest?.metadata).toEqual({ + unicode: "🚀🎉✨", + special_chars: "!@#$%^&*()", + spaces: "hello world with spaces", + }); + } finally { + await server.stop(); + } }); }); describe("Metadata Edge Cases", () => { it("should handle single metadata entry", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - "single_key=single_value", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/list", + "--metadata", + "single_key=single_value", + "--transport", + "http", + ]); + + expectCliSuccess(result); + + // Validate single metadata entry + const recordedRequests = server.getRecordedRequests(); + const toolsListRequest = recordedRequests.find( + (r) => r.method === "tools/list", + ); + expect(toolsListRequest).toBeDefined(); + expect(toolsListRequest?.metadata).toEqual({ + single_key: "single_value", + }); + } finally { + await server.stop(); + } }); it("should handle many metadata entries", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - "key1=value1", - "key2=value2", - "key3=value3", - "key4=value4", - "key5=value5", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/list", + "--metadata", + "key1=value1", + "key2=value2", + "key3=value3", + "key4=value4", + "key5=value5", + "--transport", + "http", + ]); + + expectCliSuccess(result); + + // Validate all metadata entries + const recordedRequests = server.getRecordedRequests(); + const toolsListRequest = recordedRequests.find( + (r) => r.method === "tools/list", + ); + expect(toolsListRequest).toBeDefined(); + expect(toolsListRequest?.metadata).toEqual({ + key1: "value1", + key2: "value2", + key3: "value3", + key4: "value4", + key5: "value5", + }); + } finally { + await server.stop(); + } }); }); describe("Metadata Error Cases", () => { it("should fail with invalid metadata format (missing equals)", async () => { const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + NO_SERVER_SENTINEL, "--cli", "--method", "tools/list", @@ -245,8 +574,7 @@ describe("Metadata Tests", () => { it("should fail with invalid tool-metadata format (missing equals)", async () => { const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + NO_SERVER_SENTINEL, "--cli", "--method", "tools/call", @@ -264,140 +592,321 @@ describe("Metadata Tests", () => { describe("Metadata Impact", () => { it("should handle tool-specific metadata precedence over general", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=precedence test", - "--metadata", - "client=general-client", - "--tool-metadata", - "client=tool-specific-client", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=precedence test", + "--metadata", + "client=general-client", + "--tool-metadata", + "client=tool-specific-client", + "--transport", + "http", + ]); + + expectCliSuccess(result); + + // Validate tool-specific metadata overrides general + const recordedRequests = server.getRecordedRequests(); + const toolCallRequest = recordedRequests.find( + (r) => r.method === "tools/call", + ); + expect(toolCallRequest).toBeDefined(); + expect(toolCallRequest?.metadata).toEqual({ + client: "tool-specific-client", + }); + } finally { + await server.stop(); + } }); it("should work with resources methods", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "resources/list", - "--metadata", - "resource_client=test-resource-client", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + resources: [ + { + uri: "test://resource", + name: "test-resource", + text: "test content", + }, + ], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "resources/list", + "--metadata", + "resource_client=test-resource-client", + "--transport", + "http", + ]); + + expectCliSuccess(result); + + // Validate metadata was sent + const recordedRequests = server.getRecordedRequests(); + const resourcesListRequest = recordedRequests.find( + (r) => r.method === "resources/list", + ); + expect(resourcesListRequest).toBeDefined(); + expect(resourcesListRequest?.metadata).toEqual({ + resource_client: "test-resource-client", + }); + } finally { + await server.stop(); + } }); it("should work with prompts methods", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "prompts/get", - "--prompt-name", - "simple-prompt", - "--metadata", - "prompt_client=test-prompt-client", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + prompts: [ + { + name: "test-prompt", + description: "A test prompt", + }, + ], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "prompts/get", + "--prompt-name", + "test-prompt", + "--metadata", + "prompt_client=test-prompt-client", + "--transport", + "http", + ]); + + expectCliSuccess(result); + + // Validate metadata was sent + const recordedRequests = server.getRecordedRequests(); + const getPromptRequest = recordedRequests.find( + (r) => r.method === "prompts/get", + ); + expect(getPromptRequest).toBeDefined(); + expect(getPromptRequest?.metadata).toEqual({ + prompt_client: "test-prompt-client", + }); + } finally { + await server.stop(); + } }); }); describe("Metadata Validation", () => { it("should handle special characters in keys", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=special keys test", - "--metadata", - "key-with-dashes=value1", - "key_with_underscores=value2", - "key.with.dots=value3", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=special keys test", + "--metadata", + "key-with-dashes=value1", + "key_with_underscores=value2", + "key.with.dots=value3", + "--transport", + "http", + ]); + + expectCliSuccess(result); + + // Validate special characters in keys are preserved + const recordedRequests = server.getRecordedRequests(); + const toolCallRequest = recordedRequests.find( + (r) => r.method === "tools/call", + ); + expect(toolCallRequest).toBeDefined(); + expect(toolCallRequest?.metadata).toEqual({ + "key-with-dashes": "value1", + key_with_underscores: "value2", + "key.with.dots": "value3", + }); + } finally { + await server.stop(); + } }); }); describe("Metadata Integration", () => { it("should work with all MCP methods", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/list", - "--metadata", - "integration_test=true", - "test_phase=all_methods", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/list", + "--metadata", + "integration_test=true", + "test_phase=all_methods", + "--transport", + "http", + ]); + + expectCliSuccess(result); + + // Validate metadata was sent + const recordedRequests = server.getRecordedRequests(); + const toolsListRequest = recordedRequests.find( + (r) => r.method === "tools/list", + ); + expect(toolsListRequest).toBeDefined(); + expect(toolsListRequest?.metadata).toEqual({ + integration_test: "true", + test_phase: "all_methods", + }); + } finally { + await server.stop(); + } }); it("should handle complex metadata scenario", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=complex test", - "--metadata", - "session_id=12345", - "user_id=67890", - "timestamp=2024-01-01T00:00:00Z", - "request_id=req-abc-123", - "--tool-metadata", - "tool_session=session-xyz-789", - "execution_context=test", - "priority=high", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=complex test", + "--metadata", + "session_id=12345", + "user_id=67890", + "timestamp=2024-01-01T00:00:00Z", + "request_id=req-abc-123", + "--tool-metadata", + "tool_session=session-xyz-789", + "execution_context=test", + "priority=high", + "--transport", + "http", + ]); + + expectCliSuccess(result); + + // Validate complex metadata merging + const recordedRequests = server.getRecordedRequests(); + const toolCallRequest = recordedRequests.find( + (r) => r.method === "tools/call", + ); + expect(toolCallRequest).toBeDefined(); + expect(toolCallRequest?.metadata).toEqual({ + session_id: "12345", + user_id: "67890", + timestamp: "2024-01-01T00:00:00Z", + request_id: "req-abc-123", + tool_session: "session-xyz-789", + execution_context: "test", + priority: "high", + }); + } finally { + await server.stop(); + } }); it("should handle metadata parsing validation", async () => { - const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, - "--cli", - "--method", - "tools/call", - "--tool-name", - "echo", - "--tool-arg", - "message=parsing validation test", - "--metadata", - "valid_key=valid_value", - "numeric_key=123", - "boolean_key=true", - 'json_key=\'{"test":"value"}\'', - "special_key=!@#$%^&*()", - "unicode_key=🚀🎉✨", - ]); - - expectCliSuccess(result); + const server = createInstrumentedServer({ + tools: [createEchoTool()], + }); + + try { + await server.start("http"); + const serverUrl = `${server.getUrl()}/mcp`; + + const result = await runCli([ + serverUrl, + "--cli", + "--method", + "tools/call", + "--tool-name", + "echo", + "--tool-arg", + "message=parsing validation test", + "--metadata", + "valid_key=valid_value", + "numeric_key=123", + "boolean_key=true", + 'json_key=\'{"test":"value"}\'', + "special_key=!@#$%^&*()", + "unicode_key=🚀🎉✨", + "--transport", + "http", + ]); + + expectCliSuccess(result); + + // Validate all value types are sent as strings + // Note: The CLI parses metadata values, so single-quoted JSON strings + // are preserved with their quotes + const recordedRequests = server.getRecordedRequests(); + const toolCallRequest = recordedRequests.find( + (r) => r.method === "tools/call", + ); + expect(toolCallRequest).toBeDefined(); + expect(toolCallRequest?.metadata).toEqual({ + valid_key: "valid_value", + numeric_key: "123", + boolean_key: "true", + json_key: '\'{"test":"value"}\'', // Single quotes are preserved + special_key: "!@#$%^&*()", + unicode_key: "🚀🎉✨", + }); + } finally { + await server.stop(); + } }); }); }); diff --git a/cli/__tests__/tools.test.ts b/cli/__tests__/tools.test.ts index f90a1d729..108569d60 100644 --- a/cli/__tests__/tools.test.ts +++ b/cli/__tests__/tools.test.ts @@ -6,17 +6,15 @@ import { expectValidJson, expectJsonError, } from "./helpers/assertions.js"; -import { TEST_SERVER } from "./helpers/fixtures.js"; - -const TEST_CMD = "npx"; -const TEST_ARGS = [TEST_SERVER]; +import { getTestMcpServerCommand } from "./helpers/fixtures.js"; describe("Tool Tests", () => { describe("Tool Discovery", () => { it("should list available tools", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/list", @@ -25,14 +23,25 @@ describe("Tool Tests", () => { expectCliSuccess(result); const json = expectValidJson(result); expect(json).toHaveProperty("tools"); + expect(Array.isArray(json.tools)).toBe(true); + expect(json.tools.length).toBeGreaterThan(0); + // Validate that tools have required properties + expect(json.tools[0]).toHaveProperty("name"); + expect(json.tools[0]).toHaveProperty("description"); + // Validate expected tools from test-mcp-server + const toolNames = json.tools.map((tool: any) => tool.name); + expect(toolNames).toContain("echo"); + expect(toolNames).toContain("get-sum"); + expect(toolNames).toContain("get-annotated-message"); }); }); describe("JSON Argument Parsing", () => { it("should handle string arguments (backward compatibility)", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -43,12 +52,19 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content.length).toBeGreaterThan(0); + expect(json.content[0]).toHaveProperty("type", "text"); + expect(json.content[0].text).toBe("Echo: hello world"); }); it("should handle integer number arguments", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -60,12 +76,21 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content.length).toBeGreaterThan(0); + expect(json.content[0]).toHaveProperty("type", "text"); + // test-mcp-server returns JSON with {result: a+b} + const resultData = JSON.parse(json.content[0].text); + expect(resultData.result).toBe(100); }); it("should handle decimal number arguments", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -77,12 +102,21 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content.length).toBeGreaterThan(0); + expect(json.content[0]).toHaveProperty("type", "text"); + // test-mcp-server returns JSON with {result: a+b} + const resultData = JSON.parse(json.content[0].text); + expect(resultData.result).toBeCloseTo(40.0, 2); }); it("should handle boolean arguments - true", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -94,12 +128,20 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + // Should have both text and image content + expect(json.content.length).toBeGreaterThan(1); + const hasImage = json.content.some((item: any) => item.type === "image"); + expect(hasImage).toBe(true); }); it("should handle boolean arguments - false", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -111,12 +153,21 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + // Should only have text content, no image + const hasImage = json.content.some((item: any) => item.type === "image"); + expect(hasImage).toBe(false); + // test-mcp-server returns "This is a {messageType} message" + expect(json.content[0].text.toLowerCase()).toContain("error"); }); it("should handle null arguments", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -127,12 +178,19 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content[0]).toHaveProperty("type", "text"); + // The string "null" should be passed through + expect(json.content[0].text).toBe("Echo: null"); }); it("should handle multiple arguments with mixed types", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -144,14 +202,23 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content.length).toBeGreaterThan(0); + expect(json.content[0]).toHaveProperty("type", "text"); + // test-mcp-server returns JSON with {result: a+b} + const resultData = JSON.parse(json.content[0].text); + expect(resultData.result).toBeCloseTo(100.0, 1); }); }); describe("JSON Parsing Edge Cases", () => { it("should fall back to string for invalid JSON", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -162,12 +229,19 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content[0]).toHaveProperty("type", "text"); + // Should treat invalid JSON as a string + expect(json.content[0].text).toBe("Echo: {invalid json}"); }); it("should handle empty string value", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -178,12 +252,19 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content[0]).toHaveProperty("type", "text"); + // Empty string should be preserved + expect(json.content[0].text).toBe("Echo: "); }); it("should handle special characters in strings", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -194,12 +275,21 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content[0]).toHaveProperty("type", "text"); + // Special characters should be preserved + expect(json.content[0].text).toContain("C:"); + expect(json.content[0].text).toContain("Users"); + expect(json.content[0].text).toContain("test"); }); it("should handle unicode characters", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -210,12 +300,21 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content[0]).toHaveProperty("type", "text"); + // Unicode characters should be preserved + expect(json.content[0].text).toContain("🚀"); + expect(json.content[0].text).toContain("🎉"); + expect(json.content[0].text).toContain("✨"); }); it("should handle arguments with equals signs in values", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -226,30 +325,46 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content[0]).toHaveProperty("type", "text"); + // Equals signs in values should be preserved + expect(json.content[0].text).toBe("Echo: 2+2=4"); }); it("should handle base64-like strings", async () => { + const { command, args } = getTestMcpServerCommand(); + const base64String = + "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0="; const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", "--tool-name", "echo", "--tool-arg", - "message=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0=", + `message=${base64String}`, ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content[0]).toHaveProperty("type", "text"); + // Base64-like strings should be preserved + expect(json.content[0].text).toBe(`Echo: ${base64String}`); }); }); describe("Tool Error Handling", () => { it("should fail with nonexistent tool", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -264,9 +379,10 @@ describe("Tool Tests", () => { }); it("should fail when tool name is missing", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -278,9 +394,10 @@ describe("Tool Tests", () => { }); it("should fail with invalid tool argument format", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -296,9 +413,10 @@ describe("Tool Tests", () => { describe("Prompt JSON Arguments", () => { it("should handle prompt with JSON arguments", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "prompts/get", @@ -310,12 +428,25 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("messages"); + expect(Array.isArray(json.messages)).toBe(true); + expect(json.messages.length).toBeGreaterThan(0); + expect(json.messages[0]).toHaveProperty("content"); + expect(json.messages[0].content).toHaveProperty("type", "text"); + // Validate that the arguments were actually used in the response + // test-mcp-server formats it as "This is a prompt with arguments: city={city}, state={state}" + expect(json.messages[0].content.text).toContain("city=New York"); + expect(json.messages[0].content.text).toContain("state=NY"); }); it("should handle prompt with simple arguments", async () => { + // Note: simple-prompt doesn't accept arguments, but the CLI should still + // accept the command and the server should ignore the arguments + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "prompts/get", @@ -327,14 +458,25 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("messages"); + expect(Array.isArray(json.messages)).toBe(true); + expect(json.messages.length).toBeGreaterThan(0); + expect(json.messages[0]).toHaveProperty("content"); + expect(json.messages[0].content).toHaveProperty("type", "text"); + // test-mcp-server's simple-prompt returns standard message (ignoring args) + expect(json.messages[0].content.text).toBe( + "This is a simple prompt for testing purposes.", + ); }); }); describe("Backward Compatibility", () => { it("should support existing string-only usage", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -345,12 +487,18 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content[0]).toHaveProperty("type", "text"); + expect(json.content[0].text).toBe("Echo: hello"); }); it("should support multiple string arguments", async () => { + const { command, args } = getTestMcpServerCommand(); const result = await runCli([ - TEST_CMD, - ...TEST_ARGS, + command, + ...args, "--cli", "--method", "tools/call", @@ -362,6 +510,14 @@ describe("Tool Tests", () => { ]); expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("content"); + expect(Array.isArray(json.content)).toBe(true); + expect(json.content.length).toBeGreaterThan(0); + expect(json.content[0]).toHaveProperty("type", "text"); + // test-mcp-server returns JSON with {result: a+b} + const resultData = JSON.parse(json.content[0].text); + expect(resultData.result).toBe(30); }); }); }); diff --git a/cli/package.json b/cli/package.json index 149be9453..c62f8a12e 100644 --- a/cli/package.json +++ b/cli/package.json @@ -25,11 +25,13 @@ "test:cli-metadata": "vitest run metadata.test.ts" }, "devDependencies": { + "@types/express": "^5.0.6", "vitest": "^4.0.17" }, "dependencies": { "@modelcontextprotocol/sdk": "^1.25.2", "commander": "^13.1.0", + "express": "^5.2.1", "spawn-rx": "^5.1.2" } } diff --git a/package-lock.json b/package-lock.json index db3445652..15919b0ee 100644 --- a/package-lock.json +++ b/package-lock.json @@ -53,15 +53,53 @@ "dependencies": { "@modelcontextprotocol/sdk": "^1.25.2", "commander": "^13.1.0", + "express": "^5.2.1", "spawn-rx": "^5.1.2" }, "bin": { "mcp-inspector-cli": "build/cli.js" }, "devDependencies": { + "@types/express": "^5.0.6", "vitest": "^4.0.17" } }, + "cli/node_modules/@types/express": { + "version": "5.0.6", + "resolved": "https://registry.npmjs.org/@types/express/-/express-5.0.6.tgz", + "integrity": "sha512-sKYVuV7Sv9fbPIt/442koC7+IIwK5olP1KWeD88e/idgoJqDm3JV/YUiPwkoKK92ylff2MGxSz1CSjsXelx0YA==", + "dev": true, + "license": "MIT", + "dependencies": { + "@types/body-parser": "*", + "@types/express-serve-static-core": "^5.0.0", + "@types/serve-static": "^2" + } + }, + "cli/node_modules/@types/express-serve-static-core": { + "version": "5.1.1", + "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-5.1.1.tgz", + "integrity": "sha512-v4zIMr/cX7/d2BpAEX3KNKL/JrT1s43s96lLvvdTmza1oEvDudCqK9aF/djc/SWgy8Yh0h30TZx5VpzqFCxk5A==", + "dev": true, + "license": "MIT", + "dependencies": { + "@types/node": "*", + "@types/qs": "*", + "@types/range-parser": "*", + "@types/send": "*" + } + }, + "cli/node_modules/@types/serve-static": { + "version": "2.2.0", + "resolved": "https://registry.npmjs.org/@types/serve-static/-/serve-static-2.2.0.tgz", + "integrity": "sha512-8mam4H1NHLtu7nmtalF7eyBH14QyOASmcxHhSfEoRyr0nP/YdoesEtU+uSRvMe96TW/HPTtkoKqQLl53N7UXMQ==", + "dev": true, + "license": "MIT", + "dependencies": { + "@types/http-errors": "*", + "@types/node": "*" + } + }, "cli/node_modules/commander": { "version": "13.1.0", "resolved": "https://registry.npmjs.org/commander/-/commander-13.1.0.tgz", From f57bc3065f8750da5523a3ceab187f240f1a3bbd Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Thu, 15 Jan 2026 09:19:40 -0800 Subject: [PATCH 05/44] Removed server-everything dep from CI, minor cleanup --- .github/workflows/cli_tests.yml | 3 --- cli/__tests__/README.md | 2 +- cli/__tests__/helpers/instrumented-server.ts | 2 -- 3 files changed, 1 insertion(+), 6 deletions(-) diff --git a/.github/workflows/cli_tests.yml b/.github/workflows/cli_tests.yml index 3a5f502bb..ede7643e8 100644 --- a/.github/workflows/cli_tests.yml +++ b/.github/workflows/cli_tests.yml @@ -31,9 +31,6 @@ jobs: - name: Build CLI run: npm run build - - name: Explicitly pre-install test dependencies - run: npx -y @modelcontextprotocol/server-everything@2026.1.14 --help || true - - name: Run tests run: npm test env: diff --git a/cli/__tests__/README.md b/cli/__tests__/README.md index de5144fb3..dd3f5ccca 100644 --- a/cli/__tests__/README.md +++ b/cli/__tests__/README.md @@ -39,6 +39,6 @@ The `helpers/` directory contains shared utilities: - Tests within a file run sequentially (we have isolated config files and ports, so we could get more aggressive if desired) - Config files use `crypto.randomUUID()` for uniqueness in parallel execution - HTTP/SSE servers use dynamic port allocation to avoid conflicts -- Coverage is not used because the code that we want to measure is run by a spawned process, so it can't be tracked by Vitest +- Coverage is not used because much of the code that we want to measure is run by a spawned process, so it can't be tracked by Vitest - /sample-config.json is no longer used by tests - not clear if this file serves some other purpose so leaving it for now - All tests now use built-in MCP test servers, there are no external dependencies on servers from a registry diff --git a/cli/__tests__/helpers/instrumented-server.ts b/cli/__tests__/helpers/instrumented-server.ts index 32ad2904f..6fd76f4d1 100644 --- a/cli/__tests__/helpers/instrumented-server.ts +++ b/cli/__tests__/helpers/instrumented-server.ts @@ -91,7 +91,6 @@ export class InstrumentedServer { private recordedRequests: RecordedRequest[] = []; private httpServer?: HttpServer; private transport?: StreamableHTTPServerTransport | SSEServerTransport; - private port?: number; private url?: string; private currentRequestHeaders?: Record; private currentLogLevel: string | null = null; @@ -227,7 +226,6 @@ export class InstrumentedServer { ? await findAvailablePort(requestedPort) : await findAvailablePort(transport === "http" ? 3001 : 3000); - this.port = port; this.url = `http://localhost:${port}`; if (transport === "http") { From 5ee7d77c8bb9a3c3e18c961a9f06f443a26915e7 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Thu, 15 Jan 2026 11:48:24 -0800 Subject: [PATCH 06/44] Addressed Claude PR review comments: Added tsx dev dependency, beefed up process termination (possible leak on Windows), beefed up http server cleanup (close all connections), removed unused hasValidJsonOutput, reduced CLI timeout to give it breathing room with vitest timeout. --- cli/__tests__/helpers/assertions.ts | 14 ---------- cli/__tests__/helpers/cli-runner.ts | 14 ++++++---- cli/__tests__/helpers/instrumented-server.ts | 2 ++ cli/package.json | 1 + package-lock.json | 27 +------------------- 5 files changed, 13 insertions(+), 45 deletions(-) diff --git a/cli/__tests__/helpers/assertions.ts b/cli/__tests__/helpers/assertions.ts index 924c5bc92..e3ed9d02b 100644 --- a/cli/__tests__/helpers/assertions.ts +++ b/cli/__tests__/helpers/assertions.ts @@ -50,17 +50,3 @@ export function expectJsonStructure(result: CliResult, expectedKeys: string[]) { }); return json; } - -/** - * Check if output contains valid JSON (for tools/resources/prompts responses) - */ -export function hasValidJsonOutput(output: string): boolean { - return ( - output.includes('"tools"') || - output.includes('"resources"') || - output.includes('"prompts"') || - output.includes('"content"') || - output.includes('"messages"') || - output.includes('"contents"') - ); -} diff --git a/cli/__tests__/helpers/cli-runner.ts b/cli/__tests__/helpers/cli-runner.ts index e75ff4b2b..073aa9ae4 100644 --- a/cli/__tests__/helpers/cli-runner.ts +++ b/cli/__tests__/helpers/cli-runner.ts @@ -41,22 +41,26 @@ export async function runCli( let stderr = ""; let resolved = false; - // Default timeout of 12 seconds (less than vitest's 15s) - const timeoutMs = options.timeout ?? 12000; + // Default timeout of 10 seconds (less than vitest's 15s) + const timeoutMs = options.timeout ?? 10000; const timeout = setTimeout(() => { if (!resolved) { resolved = true; // Kill the process and all its children try { if (process.platform === "win32") { - child.kill(); + child.kill("SIGTERM"); } else { // On Unix, kill the process group process.kill(-child.pid!, "SIGTERM"); } } catch (e) { - // Process might already be dead - child.kill(); + // Process might already be dead, try direct kill + try { + child.kill("SIGKILL"); + } catch (e2) { + // Process is definitely dead + } } reject(new Error(`CLI command timed out after ${timeoutMs}ms`)); } diff --git a/cli/__tests__/helpers/instrumented-server.ts b/cli/__tests__/helpers/instrumented-server.ts index 6fd76f4d1..3b1caa81d 100644 --- a/cli/__tests__/helpers/instrumented-server.ts +++ b/cli/__tests__/helpers/instrumented-server.ts @@ -422,6 +422,8 @@ export class InstrumentedServer { if (this.httpServer) { return new Promise((resolve) => { + // Force close all connections + this.httpServer!.closeAllConnections?.(); this.httpServer!.close(() => { this.httpServer = undefined; resolve(); diff --git a/cli/package.json b/cli/package.json index c62f8a12e..ae24ff79a 100644 --- a/cli/package.json +++ b/cli/package.json @@ -26,6 +26,7 @@ }, "devDependencies": { "@types/express": "^5.0.6", + "tsx": "^4.7.0", "vitest": "^4.0.17" }, "dependencies": { diff --git a/package-lock.json b/package-lock.json index 15919b0ee..e31fc9577 100644 --- a/package-lock.json +++ b/package-lock.json @@ -61,6 +61,7 @@ }, "devDependencies": { "@types/express": "^5.0.6", + "tsx": "^4.7.0", "vitest": "^4.0.17" } }, @@ -12291,7 +12292,6 @@ "os": [ "aix" ], - "peer": true, "engines": { "node": ">=18" } @@ -12309,7 +12309,6 @@ "os": [ "android" ], - "peer": true, "engines": { "node": ">=18" } @@ -12327,7 +12326,6 @@ "os": [ "android" ], - "peer": true, "engines": { "node": ">=18" } @@ -12345,7 +12343,6 @@ "os": [ "android" ], - "peer": true, "engines": { "node": ">=18" } @@ -12363,7 +12360,6 @@ "os": [ "darwin" ], - "peer": true, "engines": { "node": ">=18" } @@ -12381,7 +12377,6 @@ "os": [ "darwin" ], - "peer": true, "engines": { "node": ">=18" } @@ -12399,7 +12394,6 @@ "os": [ "freebsd" ], - "peer": true, "engines": { "node": ">=18" } @@ -12417,7 +12411,6 @@ "os": [ "freebsd" ], - "peer": true, "engines": { "node": ">=18" } @@ -12435,7 +12428,6 @@ "os": [ "linux" ], - "peer": true, "engines": { "node": ">=18" } @@ -12453,7 +12445,6 @@ "os": [ "linux" ], - "peer": true, "engines": { "node": ">=18" } @@ -12471,7 +12462,6 @@ "os": [ "linux" ], - "peer": true, "engines": { "node": ">=18" } @@ -12489,7 +12479,6 @@ "os": [ "linux" ], - "peer": true, "engines": { "node": ">=18" } @@ -12507,7 +12496,6 @@ "os": [ "linux" ], - "peer": true, "engines": { "node": ">=18" } @@ -12525,7 +12513,6 @@ "os": [ "linux" ], - "peer": true, "engines": { "node": ">=18" } @@ -12543,7 +12530,6 @@ "os": [ "linux" ], - "peer": true, "engines": { "node": ">=18" } @@ -12561,7 +12547,6 @@ "os": [ "linux" ], - "peer": true, "engines": { "node": ">=18" } @@ -12579,7 +12564,6 @@ "os": [ "linux" ], - "peer": true, "engines": { "node": ">=18" } @@ -12597,7 +12581,6 @@ "os": [ "netbsd" ], - "peer": true, "engines": { "node": ">=18" } @@ -12615,7 +12598,6 @@ "os": [ "netbsd" ], - "peer": true, "engines": { "node": ">=18" } @@ -12633,7 +12615,6 @@ "os": [ "openbsd" ], - "peer": true, "engines": { "node": ">=18" } @@ -12651,7 +12632,6 @@ "os": [ "openbsd" ], - "peer": true, "engines": { "node": ">=18" } @@ -12669,7 +12649,6 @@ "os": [ "openharmony" ], - "peer": true, "engines": { "node": ">=18" } @@ -12687,7 +12666,6 @@ "os": [ "sunos" ], - "peer": true, "engines": { "node": ">=18" } @@ -12705,7 +12683,6 @@ "os": [ "win32" ], - "peer": true, "engines": { "node": ">=18" } @@ -12723,7 +12700,6 @@ "os": [ "win32" ], - "peer": true, "engines": { "node": ">=18" } @@ -12741,7 +12717,6 @@ "os": [ "win32" ], - "peer": true, "engines": { "node": ">=18" } From 255c06f7a1d8ec672998a51e5da7163ed5e3bc35 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Fri, 16 Jan 2026 13:09:58 -0800 Subject: [PATCH 07/44] Made both stdio and http test servers fully composable, cleaned up types, terminology, and usage. --- cli/__tests__/cli.test.ts | 24 +- cli/__tests__/headers.test.ts | 17 +- cli/__tests__/helpers/fixtures.ts | 22 +- cli/__tests__/helpers/test-fixtures.ts | 267 +++++++++++++++++ cli/__tests__/helpers/test-mcp-server.ts | 269 ------------------ ...rumented-server.ts => test-server-http.ts} | 146 +++------- cli/__tests__/helpers/test-server-stdio.ts | 241 ++++++++++++++++ cli/__tests__/metadata.test.ts | 65 +++-- cli/__tests__/tools.test.ts | 2 +- 9 files changed, 616 insertions(+), 437 deletions(-) create mode 100644 cli/__tests__/helpers/test-fixtures.ts delete mode 100644 cli/__tests__/helpers/test-mcp-server.ts rename cli/__tests__/helpers/{instrumented-server.ts => test-server-http.ts} (81%) create mode 100644 cli/__tests__/helpers/test-server-stdio.ts diff --git a/cli/__tests__/cli.test.ts b/cli/__tests__/cli.test.ts index 4b407d3a3..b263f618c 100644 --- a/cli/__tests__/cli.test.ts +++ b/cli/__tests__/cli.test.ts @@ -11,12 +11,13 @@ import { createTestConfig, createInvalidConfig, deleteConfigFile, - getTestMcpServerCommand, } from "./helpers/fixtures.js"; +import { getTestMcpServerCommand } from "./helpers/test-server-stdio.js"; +import { createTestServerHttp } from "./helpers/test-server-http.js"; import { - createInstrumentedServer, createEchoTool, -} from "./helpers/instrumented-server.js"; + createTestServerInfo, +} from "./helpers/test-fixtures.js"; describe("CLI Tests", () => { describe("Basic CLI Mode", () => { @@ -363,7 +364,10 @@ describe("CLI Tests", () => { describe("Logging Options", () => { it("should set log level", async () => { - const server = createInstrumentedServer({}); + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + logging: true, + }); try { const port = await server.start("http"); @@ -731,7 +735,8 @@ describe("CLI Tests", () => { describe("HTTP Transport", () => { it("should infer HTTP transport from URL ending with /mcp", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -757,7 +762,8 @@ describe("CLI Tests", () => { }); it("should work with explicit --transport http flag", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -785,7 +791,8 @@ describe("CLI Tests", () => { }); it("should work with explicit transport flag and URL suffix", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -813,7 +820,8 @@ describe("CLI Tests", () => { }); it("should fail when SSE transport is given to HTTP server", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); diff --git a/cli/__tests__/headers.test.ts b/cli/__tests__/headers.test.ts index d2240f7ce..6adf1effe 100644 --- a/cli/__tests__/headers.test.ts +++ b/cli/__tests__/headers.test.ts @@ -5,15 +5,17 @@ import { expectOutputContains, expectCliSuccess, } from "./helpers/assertions.js"; +import { createTestServerHttp } from "./helpers/test-server-http.js"; import { - createInstrumentedServer, createEchoTool, -} from "./helpers/instrumented-server.js"; + createTestServerInfo, +} from "./helpers/test-fixtures.js"; describe("Header Parsing and Validation", () => { describe("Valid Headers", () => { it("should parse valid single header and send it to server", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -52,7 +54,8 @@ describe("Header Parsing and Validation", () => { }); it("should parse multiple headers", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -86,7 +89,8 @@ describe("Header Parsing and Validation", () => { }); it("should handle header with colons in value", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -119,7 +123,8 @@ describe("Header Parsing and Validation", () => { }); it("should handle whitespace in headers", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); diff --git a/cli/__tests__/helpers/fixtures.ts b/cli/__tests__/helpers/fixtures.ts index 9107df221..5914f485c 100644 --- a/cli/__tests__/helpers/fixtures.ts +++ b/cli/__tests__/helpers/fixtures.ts @@ -2,10 +2,7 @@ import fs from "fs"; import path from "path"; import os from "os"; import crypto from "crypto"; -import { fileURLToPath } from "url"; -import { dirname } from "path"; - -const __dirname = dirname(fileURLToPath(import.meta.url)); +import { getTestMcpServerCommand } from "./test-server-stdio.js"; /** * Sentinel value for tests that don't need a real server @@ -90,20 +87,3 @@ export function createInvalidConfig(): string { export function deleteConfigFile(configPath: string): void { cleanupTempDir(path.dirname(configPath)); } - -/** - * Get the path to the test MCP server script - */ -export function getTestMcpServerPath(): string { - return path.resolve(__dirname, "test-mcp-server.ts"); -} - -/** - * Get the command and args to run the test MCP server - */ -export function getTestMcpServerCommand(): { command: string; args: string[] } { - return { - command: "tsx", - args: [getTestMcpServerPath()], - }; -} diff --git a/cli/__tests__/helpers/test-fixtures.ts b/cli/__tests__/helpers/test-fixtures.ts new file mode 100644 index 000000000..d92d79ae0 --- /dev/null +++ b/cli/__tests__/helpers/test-fixtures.ts @@ -0,0 +1,267 @@ +/** + * Shared types and test fixtures for composable MCP test servers + */ + +import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; +import type { Implementation } from "@modelcontextprotocol/sdk/types.js"; +import * as z from "zod/v4"; +import { ZodRawShapeCompat } from "@modelcontextprotocol/sdk/server/zod-compat.js"; + +type ToolInputSchema = ZodRawShapeCompat; + +export interface ToolDefinition { + name: string; + description: string; + inputSchema?: ToolInputSchema; + handler: (params: Record) => Promise; +} + +export interface ResourceDefinition { + uri: string; + name: string; + description?: string; + mimeType?: string; + text?: string; +} + +type PromptArgsSchema = ZodRawShapeCompat; + +export interface PromptDefinition { + name: string; + description?: string; + argsSchema?: PromptArgsSchema; +} + +// This allows us to compose tests servers using the metadata and features we want in a given scenario +export interface ServerConfig { + serverInfo: Implementation; // Server metadata (name, version, etc.) - required + tools?: ToolDefinition[]; // Tools to register (optional, empty array means no tools, but tools capability is still advertised) + resources?: ResourceDefinition[]; // Resources to register (optional, empty array means no resources, but resources capability is still advertised) + prompts?: PromptDefinition[]; // Prompts to register (optional, empty array means no prompts, but prompts capability is still advertised) + logging?: boolean; // Whether to advertise logging capability (default: false) +} + +/** + * Create an "echo" tool that echoes back the input message + */ +export function createEchoTool(): ToolDefinition { + return { + name: "echo", + description: "Echo back the input message", + inputSchema: { + message: z.string().describe("Message to echo back"), + }, + handler: async (params: Record) => { + return { message: `Echo: ${params.message as string}` }; + }, + }; +} + +/** + * Create an "add" tool that adds two numbers together + */ +export function createAddTool(): ToolDefinition { + return { + name: "add", + description: "Add two numbers together", + inputSchema: { + a: z.number().describe("First number"), + b: z.number().describe("Second number"), + }, + handler: async (params: Record) => { + const a = params.a as number; + const b = params.b as number; + return { result: a + b }; + }, + }; +} + +/** + * Create a "get-sum" tool that returns the sum of two numbers (alias for add) + */ +export function createGetSumTool(): ToolDefinition { + return { + name: "get-sum", + description: "Get the sum of two numbers", + inputSchema: { + a: z.number().describe("First number"), + b: z.number().describe("Second number"), + }, + handler: async (params: Record) => { + const a = params.a as number; + const b = params.b as number; + return { result: a + b }; + }, + }; +} + +/** + * Create a "get-annotated-message" tool that returns a message with optional image + */ +export function createGetAnnotatedMessageTool(): ToolDefinition { + return { + name: "get-annotated-message", + description: "Get an annotated message", + inputSchema: { + messageType: z + .enum(["success", "error", "warning", "info"]) + .describe("Type of message"), + includeImage: z + .boolean() + .optional() + .describe("Whether to include an image"), + }, + handler: async (params: Record) => { + const messageType = params.messageType as string; + const includeImage = params.includeImage as boolean | undefined; + const message = `This is a ${messageType} message`; + const content: Array< + | { type: "text"; text: string } + | { type: "image"; data: string; mimeType: string } + > = [ + { + type: "text", + text: message, + }, + ]; + + if (includeImage) { + content.push({ + type: "image", + data: "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==", // 1x1 transparent PNG + mimeType: "image/png", + }); + } + + return { content }; + }, + }; +} + +/** + * Create a "simple-prompt" prompt definition + */ +export function createSimplePrompt(): PromptDefinition { + return { + name: "simple-prompt", + description: "A simple prompt for testing", + }; +} + +/** + * Create an "args-prompt" prompt that accepts arguments + */ +export function createArgsPrompt(): PromptDefinition { + return { + name: "args-prompt", + description: "A prompt that accepts arguments for testing", + argsSchema: { + city: z.string().describe("City name"), + state: z.string().describe("State name"), + }, + }; +} + +/** + * Create an "architecture" resource definition + */ +export function createArchitectureResource(): ResourceDefinition { + return { + name: "architecture", + uri: "demo://resource/static/document/architecture.md", + description: "Architecture documentation", + mimeType: "text/markdown", + text: `# Architecture Documentation + +This is a test resource for the MCP test server. + +## Overview + +This resource is used for testing resource reading functionality in the CLI. + +## Sections + +- Introduction +- Design +- Implementation +- Testing + +## Notes + +This is a static resource provided by the test MCP server. +`, + }; +} + +/** + * Create a "test-cwd" resource that exposes the current working directory (generally useful when testing with the stdio test server) + */ +export function createTestCwdResource(): ResourceDefinition { + return { + name: "test-cwd", + uri: "test://cwd", + description: "Current working directory of the test server", + mimeType: "text/plain", + text: process.cwd(), + }; +} + +/** + * Create a "test-env" resource that exposes environment variables (generally useful when testing with the stdio test server) + */ +export function createTestEnvResource(): ResourceDefinition { + return { + name: "test-env", + uri: "test://env", + description: "Environment variables available to the test server", + mimeType: "application/json", + text: JSON.stringify(process.env, null, 2), + }; +} + +/** + * Create a "test-argv" resource that exposes command-line arguments (generally useful when testing with the stdio test server) + */ +export function createTestArgvResource(): ResourceDefinition { + return { + name: "test-argv", + uri: "test://argv", + description: "Command-line arguments the test server was started with", + mimeType: "application/json", + text: JSON.stringify(process.argv, null, 2), + }; +} + +/** + * Create minimal server info for test servers + */ +export function createTestServerInfo( + name: string = "test-server", + version: string = "1.0.0", +): Implementation { + return { + name, + version, + }; +} + +/** + * Get default server config with common test tools, prompts, and resources + */ +export function getDefaultServerConfig(): ServerConfig { + return { + serverInfo: createTestServerInfo("test-mcp-server", "1.0.0"), + tools: [ + createEchoTool(), + createGetSumTool(), + createGetAnnotatedMessageTool(), + ], + prompts: [createSimplePrompt(), createArgsPrompt()], + resources: [ + createArchitectureResource(), + createTestCwdResource(), + createTestEnvResource(), + createTestArgvResource(), + ], + }; +} diff --git a/cli/__tests__/helpers/test-mcp-server.ts b/cli/__tests__/helpers/test-mcp-server.ts deleted file mode 100644 index 8755e41d6..000000000 --- a/cli/__tests__/helpers/test-mcp-server.ts +++ /dev/null @@ -1,269 +0,0 @@ -#!/usr/bin/env node - -/** - * Simple test MCP server for stdio transport testing - * Provides basic tools, resources, and prompts for CLI validation - */ - -import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; -import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js"; -import * as z from "zod/v4"; - -const server = new McpServer( - { - name: "test-mcp-server", - version: "1.0.0", - }, - { - capabilities: { - tools: {}, - resources: {}, - prompts: {}, - logging: {}, - }, - }, -); - -// Register echo tool -server.registerTool( - "echo", - { - description: "Echo back the input message", - inputSchema: { - message: z.string().describe("Message to echo back"), - }, - }, - async ({ message }) => { - return { - content: [ - { - type: "text", - text: `Echo: ${message}`, - }, - ], - }; - }, -); - -// Register get-sum tool (used by tests) -server.registerTool( - "get-sum", - { - description: "Get the sum of two numbers", - inputSchema: { - a: z.number().describe("First number"), - b: z.number().describe("Second number"), - }, - }, - async ({ a, b }) => { - return { - content: [ - { - type: "text", - text: JSON.stringify({ result: a + b }), - }, - ], - }; - }, -); - -// Register get-annotated-message tool (used by tests) -server.registerTool( - "get-annotated-message", - { - description: "Get an annotated message", - inputSchema: { - messageType: z - .enum(["success", "error", "warning", "info"]) - .describe("Type of message"), - includeImage: z - .boolean() - .optional() - .describe("Whether to include an image"), - }, - }, - async ({ messageType, includeImage }) => { - const message = `This is a ${messageType} message`; - const content: Array< - | { type: "text"; text: string } - | { type: "image"; data: string; mimeType: string } - > = [ - { - type: "text", - text: message, - }, - ]; - - if (includeImage) { - content.push({ - type: "image", - data: "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==", // 1x1 transparent PNG - mimeType: "image/png", - }); - } - - return { content }; - }, -); - -// Register simple-prompt -server.registerPrompt( - "simple-prompt", - { - description: "A simple prompt for testing", - }, - async () => { - return { - messages: [ - { - role: "user", - content: { - type: "text", - text: "This is a simple prompt for testing purposes.", - }, - }, - ], - }; - }, -); - -// Register args-prompt (accepts arguments) -server.registerPrompt( - "args-prompt", - { - description: "A prompt that accepts arguments for testing", - argsSchema: { - city: z.string().describe("City name"), - state: z.string().describe("State name"), - }, - }, - async ({ city, state }) => { - return { - messages: [ - { - role: "user", - content: { - type: "text", - text: `This is a prompt with arguments: city=${city}, state=${state}`, - }, - }, - ], - }; - }, -); - -// Register demo resource -server.registerResource( - "architecture", - "demo://resource/static/document/architecture.md", - { - description: "Architecture documentation", - mimeType: "text/markdown", - }, - async () => { - return { - contents: [ - { - uri: "demo://resource/static/document/architecture.md", - mimeType: "text/markdown", - text: `# Architecture Documentation - -This is a test resource for the MCP test server. - -## Overview - -This resource is used for testing resource reading functionality in the CLI. - -## Sections - -- Introduction -- Design -- Implementation -- Testing - -## Notes - -This is a static resource provided by the test MCP server. -`, - }, - ], - }; - }, -); - -// Register test resources for verifying server startup state -// CWD resource - exposes current working directory -server.registerResource( - "test-cwd", - "test://cwd", - { - description: "Current working directory of the test server", - mimeType: "text/plain", - }, - async () => { - return { - contents: [ - { - uri: "test://cwd", - mimeType: "text/plain", - text: process.cwd(), - }, - ], - }; - }, -); - -// Environment variables resource - exposes all env vars as JSON -server.registerResource( - "test-env", - "test://env", - { - description: "Environment variables available to the test server", - mimeType: "application/json", - }, - async () => { - return { - contents: [ - { - uri: "test://env", - mimeType: "application/json", - text: JSON.stringify(process.env, null, 2), - }, - ], - }; - }, -); - -// Command-line arguments resource - exposes process.argv -server.registerResource( - "test-argv", - "test://argv", - { - description: "Command-line arguments the test server was started with", - mimeType: "application/json", - }, - async () => { - return { - contents: [ - { - uri: "test://argv", - mimeType: "application/json", - text: JSON.stringify(process.argv, null, 2), - }, - ], - }; - }, -); - -// Connect to stdio transport and start -const transport = new StdioServerTransport(); -server - .connect(transport) - .then(() => { - // Server is now running and listening on stdio - // Keep the process alive - }) - .catch((error) => { - console.error("Failed to start test MCP server:", error); - process.exit(1); - }); diff --git a/cli/__tests__/helpers/instrumented-server.ts b/cli/__tests__/helpers/test-server-http.ts similarity index 81% rename from cli/__tests__/helpers/instrumented-server.ts rename to cli/__tests__/helpers/test-server-http.ts index 3b1caa81d..4626ef516 100644 --- a/cli/__tests__/helpers/instrumented-server.ts +++ b/cli/__tests__/helpers/test-server-http.ts @@ -6,37 +6,8 @@ import type { Request, Response } from "express"; import express from "express"; import { createServer as createHttpServer, Server as HttpServer } from "http"; import { createServer as createNetServer } from "net"; - -export interface ToolDefinition { - name: string; - description: string; - inputSchema: Record; // JSON Schema - handler: (params: Record) => Promise; -} - -export interface ResourceDefinition { - uri: string; - name: string; - description?: string; - mimeType?: string; - text?: string; -} - -export interface PromptDefinition { - name: string; - description?: string; - arguments?: Array<{ - name: string; - description?: string; - required?: boolean; - }>; -} - -export interface ServerConfig { - tools?: ToolDefinition[]; - resources?: ResourceDefinition[]; - prompts?: PromptDefinition[]; -} +import * as z from "zod/v4"; +import type { ServerConfig } from "./test-fixtures.js"; export interface RecordedRequest { method: string; @@ -85,7 +56,9 @@ function extractHeaders(req: Request): Record { return headers; } -export class InstrumentedServer { +// With this test server, your test can hold an instance and you can get the server's recorded message history at any time. +// +export class TestServerHttp { private mcpServer: McpServer; private config: ServerConfig; private recordedRequests: RecordedRequest[] = []; @@ -97,23 +70,35 @@ export class InstrumentedServer { constructor(config: ServerConfig) { this.config = config; - this.mcpServer = new McpServer( - { - name: "instrumented-test-server", - version: "1.0.0", - }, - { - capabilities: { - tools: {}, - resources: {}, - prompts: {}, - logging: {}, - }, - }, - ); + const capabilities: { + tools?: {}; + resources?: {}; + prompts?: {}; + logging?: {}; + } = {}; + + // Only include capabilities for features that are present in config + if (config.tools !== undefined) { + capabilities.tools = {}; + } + if (config.resources !== undefined) { + capabilities.resources = {}; + } + if (config.prompts !== undefined) { + capabilities.prompts = {}; + } + if (config.logging === true) { + capabilities.logging = {}; + } + + this.mcpServer = new McpServer(config.serverInfo, { + capabilities, + }); this.setupHandlers(); - this.setupLoggingHandler(); + if (config.logging === true) { + this.setupLoggingHandler(); + } } private setupHandlers() { @@ -164,25 +149,11 @@ export class InstrumentedServer { // Set up prompts if (this.config.prompts && this.config.prompts.length > 0) { for (const prompt of this.config.prompts) { - // Convert arguments array to a schema object if provided - const argsSchema = prompt.arguments - ? prompt.arguments.reduce( - (acc, arg) => { - acc[arg.name] = { - type: "string", - description: arg.description, - }; - return acc; - }, - {} as Record, - ) - : undefined; - this.mcpServer.registerPrompt( prompt.name, { description: prompt.description, - argsSchema, + argsSchema: prompt.argsSchema, }, async (args) => { // Return a simple prompt response @@ -465,53 +436,8 @@ export class InstrumentedServer { } /** - * Create an instrumented MCP server for testing - */ -export function createInstrumentedServer( - config: ServerConfig, -): InstrumentedServer { - return new InstrumentedServer(config); -} - -/** - * Create a simple "add" tool definition that adds two numbers + * Create an HTTP/SSE MCP test server */ -export function createAddTool(): ToolDefinition { - return { - name: "add", - description: "Add two numbers together", - inputSchema: { - type: "object", - properties: { - a: { type: "number", description: "First number" }, - b: { type: "number", description: "Second number" }, - }, - required: ["a", "b"], - }, - handler: async (params: Record) => { - const a = params.a as number; - const b = params.b as number; - return { result: a + b }; - }, - }; -} - -/** - * Create a simple "echo" tool definition that echoes back the input - */ -export function createEchoTool(): ToolDefinition { - return { - name: "echo", - description: "Echo back the input message", - inputSchema: { - type: "object", - properties: { - message: { type: "string", description: "Message to echo back" }, - }, - required: ["message"], - }, - handler: async (params: Record) => { - return { message: `Echo: ${params.message as string}` }; - }, - }; +export function createTestServerHttp(config: ServerConfig): TestServerHttp { + return new TestServerHttp(config); } diff --git a/cli/__tests__/helpers/test-server-stdio.ts b/cli/__tests__/helpers/test-server-stdio.ts new file mode 100644 index 000000000..7fe6a1c47 --- /dev/null +++ b/cli/__tests__/helpers/test-server-stdio.ts @@ -0,0 +1,241 @@ +#!/usr/bin/env node + +/** + * Test MCP server for stdio transport testing + * Can be used programmatically or run as a standalone executable + */ + +import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; +import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js"; +import * as z from "zod/v4"; +import path from "path"; +import { fileURLToPath } from "url"; +import { dirname } from "path"; +import type { + ServerConfig, + ToolDefinition, + PromptDefinition, + ResourceDefinition, +} from "./test-fixtures.js"; +import { getDefaultServerConfig } from "./test-fixtures.js"; + +const __dirname = dirname(fileURLToPath(import.meta.url)); + +export class TestServerStdio { + private mcpServer: McpServer; + private config: ServerConfig; + private transport?: StdioServerTransport; + + constructor(config: ServerConfig) { + this.config = config; + const capabilities: { + tools?: {}; + resources?: {}; + prompts?: {}; + logging?: {}; + } = {}; + + // Only include capabilities for features that are present in config + if (config.tools !== undefined) { + capabilities.tools = {}; + } + if (config.resources !== undefined) { + capabilities.resources = {}; + } + if (config.prompts !== undefined) { + capabilities.prompts = {}; + } + if (config.logging === true) { + capabilities.logging = {}; + } + + this.mcpServer = new McpServer(config.serverInfo, { + capabilities, + }); + + this.setupHandlers(); + } + + private setupHandlers() { + // Set up tools + if (this.config.tools && this.config.tools.length > 0) { + for (const tool of this.config.tools) { + this.mcpServer.registerTool( + tool.name, + { + description: tool.description, + inputSchema: tool.inputSchema, + }, + async (args) => { + const result = await tool.handler(args as Record); + // If handler returns content array directly (like get-annotated-message), use it + if (result && Array.isArray(result.content)) { + return { content: result.content }; + } + // If handler returns message (like echo), format it + if (result && typeof result.message === "string") { + return { + content: [ + { + type: "text", + text: result.message, + }, + ], + }; + } + // Otherwise, stringify the result + return { + content: [ + { + type: "text", + text: JSON.stringify(result), + }, + ], + }; + }, + ); + } + } + + // Set up resources + if (this.config.resources && this.config.resources.length > 0) { + for (const resource of this.config.resources) { + this.mcpServer.registerResource( + resource.name, + resource.uri, + { + description: resource.description, + mimeType: resource.mimeType, + }, + async () => { + // For dynamic resources, get fresh text + let text = resource.text; + if (resource.name === "test-cwd") { + text = process.cwd(); + } else if (resource.name === "test-env") { + text = JSON.stringify(process.env, null, 2); + } else if (resource.name === "test-argv") { + text = JSON.stringify(process.argv, null, 2); + } + + return { + contents: [ + { + uri: resource.uri, + mimeType: resource.mimeType || "text/plain", + text: text || "", + }, + ], + }; + }, + ); + } + } + + // Set up prompts + if (this.config.prompts && this.config.prompts.length > 0) { + for (const prompt of this.config.prompts) { + this.mcpServer.registerPrompt( + prompt.name, + { + description: prompt.description, + argsSchema: prompt.argsSchema, + }, + async (args) => { + if (prompt.name === "args-prompt" && args) { + const city = (args as any).city as string; + const state = (args as any).state as string; + return { + messages: [ + { + role: "user", + content: { + type: "text", + text: `This is a prompt with arguments: city=${city}, state=${state}`, + }, + }, + ], + }; + } else { + return { + messages: [ + { + role: "user", + content: { + type: "text", + text: "This is a simple prompt for testing purposes.", + }, + }, + ], + }; + } + }, + ); + } + } + } + + /** + * Start the server with stdio transport + */ + async start(): Promise { + this.transport = new StdioServerTransport(); + await this.mcpServer.connect(this.transport); + } + + /** + * Stop the server + */ + async stop(): Promise { + await this.mcpServer.close(); + if (this.transport) { + await this.transport.close(); + this.transport = undefined; + } + } +} + +/** + * Create a stdio MCP test server + */ +export function createTestServerStdio(config: ServerConfig): TestServerStdio { + return new TestServerStdio(config); +} + +/** + * Get the path to the test MCP server script + */ +export function getTestMcpServerPath(): string { + return path.resolve(__dirname, "test-server-stdio.ts"); +} + +/** + * Get the command and args to run the test MCP server + */ +export function getTestMcpServerCommand(): { command: string; args: string[] } { + return { + command: "tsx", + args: [getTestMcpServerPath()], + }; +} + +// If run as a standalone script, start with default config +// Check if this file is being executed directly (not imported) +const isMainModule = + import.meta.url.endsWith(process.argv[1]) || + process.argv[1]?.endsWith("test-server-stdio.ts") || + process.argv[1]?.endsWith("test-server-stdio.js"); + +if (isMainModule) { + const server = new TestServerStdio(getDefaultServerConfig()); + server + .start() + .then(() => { + // Server is now running and listening on stdio + // Keep the process alive + }) + .catch((error) => { + console.error("Failed to start test MCP server:", error); + process.exit(1); + }); +} diff --git a/cli/__tests__/metadata.test.ts b/cli/__tests__/metadata.test.ts index 57edff894..93d5f8ca6 100644 --- a/cli/__tests__/metadata.test.ts +++ b/cli/__tests__/metadata.test.ts @@ -5,17 +5,19 @@ import { expectCliFailure, expectValidJson, } from "./helpers/assertions.js"; +import { createTestServerHttp } from "./helpers/test-server-http.js"; import { - createInstrumentedServer, createEchoTool, createAddTool, -} from "./helpers/instrumented-server.js"; + createTestServerInfo, +} from "./helpers/test-fixtures.js"; import { NO_SERVER_SENTINEL } from "./helpers/fixtures.js"; describe("Metadata Tests", () => { describe("General Metadata", () => { it("should work with tools/list", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -51,7 +53,8 @@ describe("Metadata Tests", () => { }); it("should work with resources/list", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), resources: [ { uri: "test://resource", @@ -95,7 +98,8 @@ describe("Metadata Tests", () => { }); it("should work with prompts/list", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), prompts: [ { name: "test-prompt", @@ -138,7 +142,8 @@ describe("Metadata Tests", () => { }); it("should work with resources/read", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), resources: [ { uri: "test://resource", @@ -182,7 +187,8 @@ describe("Metadata Tests", () => { }); it("should work with prompts/get", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), prompts: [ { name: "test-prompt", @@ -227,7 +233,8 @@ describe("Metadata Tests", () => { describe("Tool-Specific Metadata", () => { it("should work with tools/call", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -267,7 +274,8 @@ describe("Metadata Tests", () => { }); it("should work with complex tool", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createAddTool()], }); @@ -310,7 +318,8 @@ describe("Metadata Tests", () => { describe("Metadata Merging", () => { it("should merge general and tool-specific metadata (tool-specific overrides)", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -356,7 +365,8 @@ describe("Metadata Tests", () => { describe("Metadata Parsing", () => { it("should handle numeric values", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -396,7 +406,8 @@ describe("Metadata Tests", () => { }); it("should handle JSON values", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -436,7 +447,8 @@ describe("Metadata Tests", () => { }); it("should handle special characters", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -478,7 +490,8 @@ describe("Metadata Tests", () => { describe("Metadata Edge Cases", () => { it("should handle single metadata entry", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -514,7 +527,8 @@ describe("Metadata Tests", () => { }); it("should handle many metadata entries", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -592,7 +606,8 @@ describe("Metadata Tests", () => { describe("Metadata Impact", () => { it("should handle tool-specific metadata precedence over general", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -634,7 +649,8 @@ describe("Metadata Tests", () => { }); it("should work with resources methods", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), resources: [ { uri: "test://resource", @@ -676,7 +692,8 @@ describe("Metadata Tests", () => { }); it("should work with prompts methods", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), prompts: [ { name: "test-prompt", @@ -721,7 +738,8 @@ describe("Metadata Tests", () => { describe("Metadata Validation", () => { it("should handle special characters in keys", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -767,7 +785,8 @@ describe("Metadata Tests", () => { describe("Metadata Integration", () => { it("should work with all MCP methods", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -805,7 +824,8 @@ describe("Metadata Tests", () => { }); it("should handle complex metadata scenario", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); @@ -858,7 +878,8 @@ describe("Metadata Tests", () => { }); it("should handle metadata parsing validation", async () => { - const server = createInstrumentedServer({ + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), tools: [createEchoTool()], }); diff --git a/cli/__tests__/tools.test.ts b/cli/__tests__/tools.test.ts index 108569d60..e83b5ea0d 100644 --- a/cli/__tests__/tools.test.ts +++ b/cli/__tests__/tools.test.ts @@ -6,7 +6,7 @@ import { expectValidJson, expectJsonError, } from "./helpers/assertions.js"; -import { getTestMcpServerCommand } from "./helpers/fixtures.js"; +import { getTestMcpServerCommand } from "./helpers/test-server-stdio.js"; describe("Tool Tests", () => { describe("Tool Discovery", () => { From 12b9b4f34d482030adbd45c43a9418627158e75d Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Sat, 17 Jan 2026 22:20:46 -0800 Subject: [PATCH 08/44] Add TUI integration design document --- docs/tui-integration-design.md | 564 +++++++++++++++++++++++++++++++++ 1 file changed, 564 insertions(+) create mode 100644 docs/tui-integration-design.md diff --git a/docs/tui-integration-design.md b/docs/tui-integration-design.md new file mode 100644 index 000000000..4581ddd3d --- /dev/null +++ b/docs/tui-integration-design.md @@ -0,0 +1,564 @@ +# TUI Integration Design + +## Overview + +This document outlines the design for integrating the Terminal User Interface (TUI) from the [`mcp-inspect`](https://github.com/TeamSparkAI/mcp-inspect) project into the MCP Inspector monorepo. + +### Current TUI Project + +The `mcp-inspect` project is a standalone Terminal User Interface (TUI) inspector for Model Context Protocol (MCP) servers. It implements similar functionality to the current MCP Inspector web UX, but as a TUI built with React and Ink. The project is currently maintained separately at https://github.com/TeamSparkAI/mcp-inspect. + +### Integration Goal + +Our goal is to integrate the TUI into the MCP Inspector project, making it a first-class UX option alongside the existing web client and CLI. The integration will be done incrementally across three development phases: + +1. **Phase 1**: Integrate TUI as a standalone runnable workspace (no code sharing) +2. **Phase 2**: Share code with CLI via direct imports (transport, config, client utilities) +3. **Phase 3**: Extract shared code to a common directory for better organization + +**Note**: These three phases represent development staging to break down the work into manageable steps. The first release (PR) will be submitted at the completion of Phase 3, after all code sharing and organization is complete. + +Initially, the TUI will share code primarily with the CLI, as both are terminal-based Node.js applications with similar needs (transport handling, config file loading, MCP client operations). + +**Experimental Status**: The TUI functionality may be considered "experimental" until we have done sufficient testing and review of features and implementation. This allows for iteration and refinement based on user feedback before committing to a stable feature set. + +### Feature Gaps + +Current feature gaps with the web UX include lack of support for elicitation and tasks. These features can be fast follow-ons to the initial integration. After v2 is landed, we will review feature gaps and create a roadmap to bring the TUI to as close to feature parity as possible. Note that some features, like MCP-UI, may not be feasible in a terminal-based interface. + +### Future Vision + +After the v2 work on the web UX lands, an effort will be made to centralize more code so that all three UX modes (web, CLI, TUI) share code to the extent that it makes sense. The goal is to move as much logic as possible into shared code, making the UX implementations as thin as possible. This will: + +- Reduce code duplication across the three interfaces +- Ensure consistent behavior across all UX modes +- Simplify maintenance and feature development +- Create a solid foundation for future enhancements + +## Current Project Structure + +``` +inspector/ +├── cli/ # CLI workspace +│ ├── src/ +│ │ ├── cli.ts # Launcher (spawns web client or CLI) +│ │ ├── index.ts # CLI implementation +│ │ ├── transport.ts +│ │ └── client/ # MCP client utilities +│ └── package.json +├── client/ # Web client workspace (React) +├── server/ # Server workspace +└── package.json # Root workspace config +``` + +## Proposed Structure + +``` +inspector/ +├── cli/ # CLI workspace +│ ├── src/ +│ │ ├── cli.ts # Launcher (spawns web client, CLI, or TUI) +│ │ ├── index.ts # CLI implementation +│ │ ├── transport.ts # Phase 2: TUI imports, Phase 3: moved to shared/ +│ │ └── client/ # MCP client utilities (Phase 2: TUI imports, Phase 3: moved to shared/) +│ ├── __tests__/ +│ │ └── helpers/ # Phase 2: keep here, Phase 3: moved to shared/test/ +│ └── package.json +├── tui/ # NEW: TUI workspace +│ ├── src/ +│ │ ├── App.tsx # Main TUI application +│ │ ├── components/ # TUI React components +│ │ ├── hooks/ # TUI-specific hooks +│ │ ├── types/ # TUI-specific types +│ │ └── utils/ # Phase 1: self-contained, Phase 2: imports from CLI, Phase 3: imports from shared/ +│ ├── tui.tsx # TUI entry point +│ └── package.json +├── shared/ # NEW: Shared code directory (Phase 3) +│ ├── transport.ts +│ ├── config.ts +│ ├── client/ # MCP client utilities +│ │ ├── index.ts +│ │ ├── connection.ts +│ │ ├── tools.ts +│ │ ├── resources.ts +│ │ ├── prompts.ts +│ │ └── types.ts +│ └── test/ # Test fixtures and harness servers +│ ├── test-server-fixtures.ts +│ ├── test-server-http.ts +│ └── test-server-stdio.ts +├── client/ # Web client workspace +├── server/ # Server workspace +└── package.json +``` + +**Note**: The `shared/` directory is not a workspace/package, just a common directory for shared internal helpers. Direct imports are used from this directory. Test fixtures are also shared so both CLI and TUI tests can use the same test harness servers. + +## Phase 1: Initial Integration (Standalone TUI) + +**Goal**: Get TUI integrated and runnable as a standalone workspace with no code sharing. + +### 1.1 Create TUI Workspace + +Create a new `tui/` workspace that mirrors the structure of `mcp-inspect`: + +- **Location**: `/Users/bob/Documents/GitHub/inspector/tui/` +- **Package name**: `@modelcontextprotocol/inspector-tui` +- **Dependencies**: + - `ink`, `ink-form`, `ink-scroll-view`, `fullscreen-ink` (TUI libraries) + - `react` (for Ink components) + - `@modelcontextprotocol/sdk` (MCP SDK) + - **No dependencies on CLI workspace** (Phase 1 is self-contained) + +### 1.2 Remove CLI Functionality from TUI + +The `mcp-inspect` TUI includes a `src/cli.ts` file that implements CLI functionality. This should be **removed** entirely: + +- **Delete**: `src/cli.ts` from the TUI workspace +- **Remove**: CLI mode handling from `tui.tsx` entry point +- **Rationale**: The inspector project already has a complete CLI implementation in `cli/src/index.ts`. Users should use `mcp-inspector --cli` for CLI functionality. + +### 1.3 Keep TUI Self-Contained (Phase 1) + +For Phase 1, the TUI should be completely self-contained: + +- **Keep**: All utilities from `mcp-inspect` (transport, config, client) in the TUI workspace +- **No imports**: Do not import from CLI workspace yet +- **Goal**: Get TUI working standalone first, then refactor to share code + +### 1.4 Entry Point Strategy + +The root `cli/src/cli.ts` launcher should be extended to support a `--tui` flag: + +```typescript +// cli/src/cli.ts +async function runTui(args: Args): Promise { + const tuiPath = resolve(__dirname, "../../tui/build/tui.js"); + // Spawn TUI process with appropriate arguments + // Similar to runCli and runWebClient +} + +function main() { + const args = parseArgs(); + + if (args.tui) { + return runTui(args); + } else if (args.cli) { + return runCli(args); + } else { + return runWebClient(args); + } +} +``` + +**Alternative**: The TUI could also be invoked directly via `mcp-inspector-tui` binary, but using the main launcher provides consistency and shared argument parsing. + +### 1.5 Migration Plan + +1. **Create TUI workspace** + - Copy TUI code from `mcp-inspect/src/` to `tui/src/` + - Copy `tui.tsx` entry point + - Set up `tui/package.json` with dependencies + - **Keep all utilities** (transport, config, client) in TUI for now + +2. **Remove CLI functionality** + - Delete `src/cli.ts` from TUI + - Remove CLI mode handling from `tui.tsx` + - Update entry point to only support TUI mode + +3. **Update root launcher** + - Add `--tui` flag to `cli/src/cli.ts` + - Implement `runTui()` function + - Update argument parsing + +4. **Update root package.json** + - Add `tui` to workspaces + - Add build script for TUI + - Add `tui/build` to `files` array (for publishing) + - Update version management scripts to include TUI: + - Add `tui/package.json` to the list of files updated by `update-version.js` + - Add `tui/package.json` to the list of files checked by `check-version-consistency.js` + +5. **Testing** + - Test TUI with test harness servers from `cli/__tests__/helpers/` + - Test all transport types (stdio, SSE, HTTP) using test servers + - Test config file loading + - Test server selection + - Verify TUI works standalone without CLI dependencies + +## Phase 2: Code Sharing via Direct Imports + +Once Phase 1 is complete and TUI is working, update TUI to use code from the CLI workspace via direct imports. + +### 2.1 Identify Shared Code + +The following utilities from TUI should be replaced with CLI equivalents: + +1. **Transport creation** (`tui/src/utils/transport.ts`) + - Replace with direct import from `cli/src/transport.ts` + - Use `createTransport()` from CLI + +2. **Config file loading** (`tui/src/utils/config.ts`) + - Extract `loadConfigFile()` from `cli/src/cli.ts` to `cli/src/utils/config.ts` if not already there + - Replace TUI config loading with CLI version + - **Note**: TUI will use the same config file format and location as CLI/web client for consistency + +3. **Client utilities** (`tui/src/utils/client.ts`) + - Replace with direct imports from `cli/src/client/` + - Use existing MCP client wrapper functions: + - `connect()`, `disconnect()`, `setLoggingLevel()` from `cli/src/client/connection.ts` + - `listTools()`, `callTool()` from `cli/src/client/tools.ts` + - `listResources()`, `readResource()`, `listResourceTemplates()` from `cli/src/client/resources.ts` + - `listPrompts()`, `getPrompt()` from `cli/src/client/prompts.ts` + - `McpResponse` type from `cli/src/client/types.ts` + +4. **Types** (consolidate) + - Align TUI types with CLI types + - Use CLI types where possible + +### 2.2 Direct Import Strategy + +Use direct relative imports from TUI to CLI: + +```typescript +// tui/src/utils/transport.ts (or wherever needed) +import { createTransport } from "../../cli/src/transport.js"; +import { loadConfigFile } from "../../cli/src/utils/config.js"; +import { listTools, callTool } from "../../cli/src/client/tools.js"; +``` + +**No TypeScript path mappings needed** - direct relative imports are simpler and clearer. + +**Path Structure**: From `tui/src/` to `cli/src/`, the relative path is `../../cli/src/`. This works because both `tui/` and `cli/` are sibling directories at the workspace root level. + +### 2.3 Migration Steps + +1. **Extract config utility from CLI** (if needed) + - Move `loadConfigFile()` from `cli/src/cli.ts` to `cli/src/utils/config.ts` + - Ensure it's exported and reusable + +2. **Update TUI imports** + - Replace TUI transport code with import from CLI + - Replace TUI config code with import from CLI + - Replace TUI client code with imports from CLI: + - Replace direct SDK calls (`client.listTools()`, `client.callTool()`, etc.) with wrapper functions + - Use `connect()`, `disconnect()`, `setLoggingLevel()` from `cli/src/client/connection.ts` + - Use `listTools()`, `callTool()` from `cli/src/client/tools.ts` + - Use `listResources()`, `readResource()`, `listResourceTemplates()` from `cli/src/client/resources.ts` + - Use `listPrompts()`, `getPrompt()` from `cli/src/client/prompts.ts` + - Delete duplicate utilities from TUI + +3. **Test thoroughly** + - Ensure all functionality still works + - Test with test harness servers + - Verify no regressions + +## Phase 3: Extract Shared Code to Shared Directory + +After Phase 2 is complete and working, extract shared code to a `shared/` directory for better organization. This includes both runtime utilities and test fixtures. + +### 3.1 Shared Directory Structure + +``` +shared/ # Not a workspace, just a directory +├── transport.ts +├── config.ts +├── client/ # MCP client utilities +│ ├── index.ts # Re-exports +│ ├── connection.ts +│ ├── tools.ts +│ ├── resources.ts +│ ├── prompts.ts +│ └── types.ts +└── test/ # Test fixtures and harness servers + ├── test-server-fixtures.ts # Shared server configs and definitions + ├── test-server-http.ts + └── test-server-stdio.ts +``` + +### 3.2 Code to Move to Shared Directory + +**Runtime utilities:** + +- `cli/src/transport.ts` → `shared/transport.ts` +- `cli/src/utils/config.ts` (extracted from `cli/src/cli.ts`) → `shared/config.ts` +- `cli/src/client/connection.ts` → `shared/client/connection.ts` +- `cli/src/client/tools.ts` → `shared/client/tools.ts` +- `cli/src/client/resources.ts` → `shared/client/resources.ts` +- `cli/src/client/prompts.ts` → `shared/client/prompts.ts` +- `cli/src/client/types.ts` → `shared/client/types.ts` +- `cli/src/client/index.ts` → `shared/client/index.ts` (re-exports) + +**Test fixtures:** + +- `cli/__tests__/helpers/test-fixtures.ts` → `shared/test/test-server-fixtures.ts` (renamed) +- `cli/__tests__/helpers/test-server-http.ts` → `shared/test/test-server-http.ts` +- `cli/__tests__/helpers/test-server-stdio.ts` → `shared/test/test-server-stdio.ts` + +**Note**: `cli/__tests__/helpers/fixtures.ts` (CLI-specific test utilities like config file creation) stays in CLI tests, not shared. + +### 3.3 Migration to Shared Directory + +1. **Create shared directory structure** + - Create `shared/` directory at root + - Create `shared/test/` subdirectory + +2. **Move runtime utilities** + - Move transport code from `cli/src/transport.ts` to `shared/transport.ts` + - Move config code from `cli/src/utils/config.ts` to `shared/config.ts` + - Move client utilities from `cli/src/client/` to `shared/client/`: + - `connection.ts` → `shared/client/connection.ts` + - `tools.ts` → `shared/client/tools.ts` + - `resources.ts` → `shared/client/resources.ts` + - `prompts.ts` → `shared/client/prompts.ts` + - `types.ts` → `shared/client/types.ts` + - `index.ts` → `shared/client/index.ts` (re-exports) + +3. **Move test fixtures** + - Move `test-fixtures.ts` from `cli/__tests__/helpers/` to `shared/test/test-server-fixtures.ts` (renamed) + - Move test server implementations to `shared/test/` + - Update imports in CLI tests to use `shared/test/` + - Update imports in TUI tests (if any) to use `shared/test/` + - **Note**: `fixtures.ts` (CLI-specific test utilities) stays in CLI tests + +4. **Update imports** + - Update CLI to import from `../shared/` + - Update TUI to import from `../shared/` + - Update CLI tests to import from `../../shared/test/` + - Update TUI tests to import from `../../shared/test/` + +5. **Test thoroughly** + - Ensure CLI still works + - Ensure TUI still works + - Ensure all tests pass (CLI and TUI) + - Verify test harness servers work correctly + +### 3.4 Considerations + +- **Not a package**: This is just a directory for internal helpers, not a published package +- **Direct imports**: Both CLI and TUI import directly from `shared/` directory +- **Test fixtures shared**: Test harness servers and fixtures are available to both CLI and TUI tests +- **Browser vs Node**: Some utilities may need different implementations for web client (evaluate later) + +## File-by-File Migration Guide + +### From mcp-inspect to inspector/tui + +| mcp-inspect | inspector/tui | Phase | Notes | +| --------------------------- | ------------------------------- | ----- | --------------------------------------------------- | +| `tui.tsx` | `tui/tui.tsx` | 1 | Entry point, remove CLI mode handling | +| `src/App.tsx` | `tui/src/App.tsx` | 1 | Main TUI application | +| `src/components/*` | `tui/src/components/*` | 1 | All TUI components | +| `src/hooks/*` | `tui/src/hooks/*` | 1 | TUI-specific hooks | +| `src/types/*` | `tui/src/types/*` | 1 | TUI-specific types | +| `src/cli.ts` | **DELETE** | 1 | CLI functionality exists in `cli/src/index.ts` | +| `src/utils/transport.ts` | `tui/src/utils/transport.ts` | 1 | Keep in Phase 1, replace with CLI import in Phase 2 | +| `src/utils/config.ts` | `tui/src/utils/config.ts` | 1 | Keep in Phase 1, replace with CLI import in Phase 2 | +| `src/utils/client.ts` | `tui/src/utils/client.ts` | 1 | Keep in Phase 1, replace with CLI import in Phase 2 | +| `src/utils/schemaToForm.ts` | `tui/src/utils/schemaToForm.ts` | 1 | TUI-specific (form generation), keep | + +### CLI Code to Share + +| Current Location | Phase 2 Action | Phase 3 Action | Notes | +| -------------------------------------------- | ------------------------------------------------- | ------------------------------------------------------- | -------------------------------------------------------- | +| `cli/src/transport.ts` | TUI imports directly | Move to `shared/transport.ts` | Already well-structured | +| `cli/src/cli.ts::loadConfigFile()` | Extract to `cli/src/utils/config.ts`, TUI imports | Move to `shared/config.ts` | Needs extraction | +| `cli/src/client/connection.ts` | TUI imports directly | Move to `shared/client/connection.ts` | Connection management, logging | +| `cli/src/client/tools.ts` | TUI imports directly | Move to `shared/client/tools.ts` | Tool listing and calling with metadata | +| `cli/src/client/resources.ts` | TUI imports directly | Move to `shared/client/resources.ts` | Resource operations with metadata | +| `cli/src/client/prompts.ts` | TUI imports directly | Move to `shared/client/prompts.ts` | Prompt operations with metadata | +| `cli/src/client/types.ts` | TUI imports directly | Move to `shared/client/types.ts` | Shared types (McpResponse, etc.) | +| `cli/src/client/index.ts` | TUI imports directly | Move to `shared/client/index.ts` | Re-exports | +| `cli/src/index.ts::parseArgs()` | Keep CLI-specific | Keep CLI-specific | CLI-only argument parsing | +| `cli/__tests__/helpers/test-fixtures.ts` | Keep in CLI tests | Move to `shared/test/test-server-fixtures.ts` (renamed) | Shared test server configs and definitions | +| `cli/__tests__/helpers/test-server-http.ts` | Keep in CLI tests | Move to `shared/test/test-server-http.ts` | Shared test harness | +| `cli/__tests__/helpers/test-server-stdio.ts` | Keep in CLI tests | Move to `shared/test/test-server-stdio.ts` | Shared test harness | +| `cli/__tests__/helpers/fixtures.ts` | Keep in CLI tests | Keep in CLI tests | CLI-specific test utilities (config file creation, etc.) | + +## Package.json Configuration + +### Root package.json + +```json +{ + "workspaces": ["client", "server", "cli", "tui"], + "bin": { + "mcp-inspector": "cli/build/cli.js" + }, + "files": [ + "client/bin", + "client/dist", + "server/build", + "cli/build", + "tui/build" + ], + "scripts": { + "build": "npm run build-server && npm run build-client && npm run build-cli && npm run build-tui", + "build-tui": "cd tui && npm run build", + "update-version": "node scripts/update-version.js", + "check-version": "node scripts/check-version-consistency.js" + } +} +``` + +**Note**: + +- TUI build artifacts (`tui/build`) are included in the `files` array for publishing, following the same approach as CLI +- TUI will use the same version number as CLI and web client. The version management scripts (`update-version.js` and `check-version-consistency.js`) will need to be updated to include TUI in the version synchronization process + +### tui/package.json + +```json +{ + "name": "@modelcontextprotocol/inspector-tui", + "version": "0.18.0", + "type": "module", + "main": "build/tui.js", + "bin": { + "mcp-inspector-tui": "./build/tui.js" + }, + "scripts": { + "build": "tsc", + "dev": "tsx tui.tsx" + }, + "dependencies": { + "@modelcontextprotocol/sdk": "^1.25.2", + "fullscreen-ink": "^0.1.0", + "ink": "^6.6.0", + "ink-form": "^2.0.1", + "ink-scroll-view": "^0.3.5", + "react": "^19.2.3" + }, + "devDependencies": { + "@types/node": "^25.0.3", + "@types/react": "^19.2.7", + "tsx": "^4.21.0", + "typescript": "^5.9.3" + } +} +``` + +**Note**: TUI will have its own copy of React initially (different React versions for Ink vs web React). After v2 web UX lands and more code sharing begins, we may consider integrating React dependencies. + +### tui/tsconfig.json + +```json +{ + "compilerOptions": { + "target": "ES2022", + "module": "ESNext", + "moduleResolution": "node", + "jsx": "react", + "strict": true, + "esModuleInterop": true, + "skipLibCheck": true, + "forceConsistentCasingInFileNames": true, + "resolveJsonModule": true + }, + "include": ["src/**/*", "tui.tsx"], + "exclude": ["node_modules", "build"] +} +``` + +**Note**: No path mappings needed in Phase 1. In Phase 2, use direct relative imports instead of path mappings. + +## Entry Point Strategy + +The main `mcp-inspector` command will support a `--tui` flag to launch TUI mode: + +- `mcp-inspector --cli ...` → CLI mode +- `mcp-inspector --tui ...` → TUI mode +- `mcp-inspector ...` → Web client mode (default) + +This provides a single entry point with consistent argument parsing across all three UX modes. + +## Testing Strategy + +### Unit Tests + +- Test TUI components in isolation where possible +- Mock MCP client for TUI component tests +- Test shared utilities (transport, config) independently (when shared in Phase 2) + +### Integration Tests + +- **Use test harness servers**: Test TUI with test harness servers from `cli/__tests__/helpers/` + - `TestServerHttp` for HTTP/SSE transport testing + - `TestServerStdio` for stdio transport testing + - These servers are composable and support all transports +- Test config file loading and server selection +- Test all transport types (stdio, SSE, HTTP) using test servers +- Test shared code paths between CLI and TUI (Phase 2) + +### E2E Tests + +- Test full TUI workflows (connect, list tools, call tool, etc.) +- Test TUI with various server configurations using test harness servers +- Test TUI error handling and edge cases + +## Implementation Checklist + +### Phase 1: Initial Integration (Standalone TUI) + +- [ ] Create `tui/` workspace directory +- [ ] Set up `tui/package.json` with dependencies +- [ ] Configure `tui/tsconfig.json` (no path mappings needed) +- [ ] Copy TUI source files from mcp-inspect +- [ ] **Remove CLI functionality**: Delete `src/cli.ts` from TUI +- [ ] **Remove CLI mode**: Remove CLI mode handling from `tui.tsx` entry point +- [ ] **Keep utilities**: Keep transport, config, client utilities in TUI (self-contained) +- [ ] Add `--tui` flag to `cli/src/cli.ts` +- [ ] Implement `runTui()` function in launcher +- [ ] Update root `package.json` with tui workspace +- [ ] Add build scripts for TUI +- [ ] Update version management scripts (`update-version.js` and `check-version-consistency.js`) to include TUI +- [ ] Test TUI with test harness servers (stdio transport) +- [ ] Test TUI with test harness servers (SSE transport) +- [ ] Test TUI with test harness servers (HTTP transport) +- [ ] Test config file loading +- [ ] Test server selection +- [ ] Verify TUI works standalone without CLI dependencies +- [ ] Update documentation + +### Phase 2: Code Sharing via Direct Imports + +- [ ] Extract `loadConfigFile()` from `cli/src/cli.ts` to `cli/src/utils/config.ts` (if not already there) +- [ ] Update TUI to import transport from `cli/src/transport.ts` +- [ ] Update TUI to import config from `cli/src/utils/config.ts` +- [ ] Update TUI to import client utilities from `cli/src/client/` +- [ ] Delete duplicate utilities from TUI (transport, config, client) +- [ ] Test TUI with test harness servers (all transports) +- [ ] Verify all functionality still works +- [ ] Update documentation + +### Phase 3: Extract Shared Code to Shared Directory + +- [ ] Create `shared/` directory structure (not a workspace) +- [ ] Create `shared/test/` subdirectory +- [ ] Move transport code from CLI to `shared/transport.ts` +- [ ] Move config code from CLI to `shared/config.ts` +- [ ] Move client utilities from CLI to `shared/client/`: + - [ ] `connection.ts` → `shared/client/connection.ts` + - [ ] `tools.ts` → `shared/client/tools.ts` + - [ ] `resources.ts` → `shared/client/resources.ts` + - [ ] `prompts.ts` → `shared/client/prompts.ts` + - [ ] `types.ts` → `shared/client/types.ts` + - [ ] `index.ts` → `shared/client/index.ts` +- [ ] Move test fixtures from `cli/__tests__/helpers/test-fixtures.ts` to `shared/test/test-server-fixtures.ts` (renamed) +- [ ] Move test server HTTP from `cli/__tests__/helpers/test-server-http.ts` to `shared/test/test-server-http.ts` +- [ ] Move test server stdio from `cli/__tests__/helpers/test-server-stdio.ts` to `shared/test/test-server-stdio.ts` +- [ ] Update CLI to import from `../shared/` +- [ ] Update TUI to import from `../shared/` +- [ ] Update CLI tests to import from `../../shared/test/` +- [ ] Update TUI tests (if any) to import from `../../shared/test/` +- [ ] Test CLI functionality +- [ ] Test TUI functionality +- [ ] Test CLI tests (verify test harness servers work) +- [ ] Test TUI tests (if any) +- [ ] Evaluate web client needs (may need different implementations) +- [ ] Update documentation + +## Notes + +- The TUI from mcp-inspect is well-structured and should integrate cleanly +- All phase-specific details, code sharing strategies, and implementation notes are documented in their respective sections above From 493cc08ad0cda41d6ce3382057c78a5608cfa89a Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Sat, 17 Jan 2026 23:13:45 -0800 Subject: [PATCH 09/44] First integration of TUI (runnable from cli, no shared code) --- cli/src/cli.ts | 40 + docs/tui-integration-design.md | 34 +- package-lock.json | 729 ++++++++++- package.json | 9 +- scripts/check-version-consistency.js | 2 + scripts/update-version.js | 1 + tui/build/src/App.js | 1166 ++++++++++++++++++ tui/build/src/components/DetailsModal.js | 82 ++ tui/build/src/components/HistoryTab.js | 399 ++++++ tui/build/src/components/InfoTab.js | 327 +++++ tui/build/src/components/NotificationsTab.js | 96 ++ tui/build/src/components/PromptsTab.js | 235 ++++ tui/build/src/components/ResourcesTab.js | 221 ++++ tui/build/src/components/Tabs.js | 61 + tui/build/src/components/ToolTestModal.js | 289 +++++ tui/build/src/components/ToolsTab.js | 259 ++++ tui/build/src/hooks/useMCPClient.js | 184 +++ tui/build/src/hooks/useMessageTracking.js | 131 ++ tui/build/src/types.js | 1 + tui/build/src/types/focus.js | 1 + tui/build/src/types/messages.js | 1 + tui/build/src/utils/client.js | 15 + tui/build/src/utils/config.js | 24 + tui/build/src/utils/schemaToForm.js | 104 ++ tui/build/src/utils/transport.js | 70 ++ tui/build/tui.js | 57 + tui/package.json | 38 + tui/src/App.tsx | 1121 +++++++++++++++++ tui/src/components/DetailsModal.tsx | 102 ++ tui/src/components/HistoryTab.tsx | 356 ++++++ tui/src/components/InfoTab.tsx | 231 ++++ tui/src/components/NotificationsTab.tsx | 87 ++ tui/src/components/PromptsTab.tsx | 223 ++++ tui/src/components/ResourcesTab.tsx | 214 ++++ tui/src/components/Tabs.tsx | 88 ++ tui/src/components/ToolTestModal.tsx | 269 ++++ tui/src/components/ToolsTab.tsx | 252 ++++ tui/src/hooks/useMCPClient.ts | 269 ++++ tui/src/hooks/useMessageTracking.ts | 171 +++ tui/src/types.ts | 64 + tui/src/types/focus.ts | 10 + tui/src/types/messages.ts | 32 + tui/src/utils/client.ts | 17 + tui/src/utils/config.ts | 28 + tui/src/utils/schemaToForm.ts | 116 ++ tui/src/utils/transport.ts | 111 ++ tui/tsconfig.json | 17 + tui/tui.tsx | 68 + 48 files changed, 8379 insertions(+), 43 deletions(-) create mode 100644 tui/build/src/App.js create mode 100644 tui/build/src/components/DetailsModal.js create mode 100644 tui/build/src/components/HistoryTab.js create mode 100644 tui/build/src/components/InfoTab.js create mode 100644 tui/build/src/components/NotificationsTab.js create mode 100644 tui/build/src/components/PromptsTab.js create mode 100644 tui/build/src/components/ResourcesTab.js create mode 100644 tui/build/src/components/Tabs.js create mode 100644 tui/build/src/components/ToolTestModal.js create mode 100644 tui/build/src/components/ToolsTab.js create mode 100644 tui/build/src/hooks/useMCPClient.js create mode 100644 tui/build/src/hooks/useMessageTracking.js create mode 100644 tui/build/src/types.js create mode 100644 tui/build/src/types/focus.js create mode 100644 tui/build/src/types/messages.js create mode 100644 tui/build/src/utils/client.js create mode 100644 tui/build/src/utils/config.js create mode 100644 tui/build/src/utils/schemaToForm.js create mode 100644 tui/build/src/utils/transport.js create mode 100644 tui/build/tui.js create mode 100644 tui/package.json create mode 100644 tui/src/App.tsx create mode 100644 tui/src/components/DetailsModal.tsx create mode 100644 tui/src/components/HistoryTab.tsx create mode 100644 tui/src/components/InfoTab.tsx create mode 100644 tui/src/components/NotificationsTab.tsx create mode 100644 tui/src/components/PromptsTab.tsx create mode 100644 tui/src/components/ResourcesTab.tsx create mode 100644 tui/src/components/Tabs.tsx create mode 100644 tui/src/components/ToolTestModal.tsx create mode 100644 tui/src/components/ToolsTab.tsx create mode 100644 tui/src/hooks/useMCPClient.ts create mode 100644 tui/src/hooks/useMessageTracking.ts create mode 100644 tui/src/types.ts create mode 100644 tui/src/types/focus.ts create mode 100644 tui/src/types/messages.ts create mode 100644 tui/src/utils/client.ts create mode 100644 tui/src/utils/config.ts create mode 100644 tui/src/utils/schemaToForm.ts create mode 100644 tui/src/utils/transport.ts create mode 100644 tui/tsconfig.json create mode 100755 tui/tui.tsx diff --git a/cli/src/cli.ts b/cli/src/cli.ts index f4187e02d..fd2250b63 100644 --- a/cli/src/cli.ts +++ b/cli/src/cli.ts @@ -167,6 +167,36 @@ async function runCli(args: Args): Promise { } } +async function runTui(tuiArgs: string[]): Promise { + const projectRoot = resolve(__dirname, "../.."); + const tuiPath = resolve(projectRoot, "tui", "build", "tui.js"); + + const abort = new AbortController(); + + let cancelled = false; + + process.on("SIGINT", () => { + cancelled = true; + abort.abort(); + }); + + try { + // Remove --tui flag and pass everything else directly to TUI + const filteredArgs = tuiArgs.filter((arg) => arg !== "--tui"); + + await spawnPromise("node", [tuiPath, ...filteredArgs], { + env: process.env, + signal: abort.signal, + echoOutput: true, + stdio: "inherit", + }); + } catch (e) { + if (!cancelled || process.env.DEBUG) { + throw e; + } + } +} + function loadConfigFile(configPath: string, serverName: string): ServerConfig { try { const resolvedConfigPath = path.isAbsolute(configPath) @@ -267,6 +297,7 @@ function parseArgs(): Args { .option("--config ", "config file path") .option("--server ", "server name from config file") .option("--cli", "enable CLI mode") + .option("--tui", "enable TUI mode") .option("--transport ", "transport type (stdio, sse, http)") .option("--server-url ", "server URL for SSE/HTTP transport") .option( @@ -379,6 +410,15 @@ async function main(): Promise { }); try { + // For now we just pass the raw args to TUI (we'll integrate config later) + // The main issue is that Inspector only supports a single server and the TUI supports a set + // + // Check for --tui in raw argv - if present, bypass all parsing + if (process.argv.includes("--tui")) { + await runTui(process.argv.slice(2)); + return; + } + const args = parseArgs(); if (args.cli) { diff --git a/docs/tui-integration-design.md b/docs/tui-integration-design.md index 4581ddd3d..9ed01a459 100644 --- a/docs/tui-integration-design.md +++ b/docs/tui-integration-design.md @@ -500,25 +500,21 @@ This provides a single entry point with consistent argument parsing across all t ### Phase 1: Initial Integration (Standalone TUI) -- [ ] Create `tui/` workspace directory -- [ ] Set up `tui/package.json` with dependencies -- [ ] Configure `tui/tsconfig.json` (no path mappings needed) -- [ ] Copy TUI source files from mcp-inspect -- [ ] **Remove CLI functionality**: Delete `src/cli.ts` from TUI -- [ ] **Remove CLI mode**: Remove CLI mode handling from `tui.tsx` entry point -- [ ] **Keep utilities**: Keep transport, config, client utilities in TUI (self-contained) -- [ ] Add `--tui` flag to `cli/src/cli.ts` -- [ ] Implement `runTui()` function in launcher -- [ ] Update root `package.json` with tui workspace -- [ ] Add build scripts for TUI -- [ ] Update version management scripts (`update-version.js` and `check-version-consistency.js`) to include TUI -- [ ] Test TUI with test harness servers (stdio transport) -- [ ] Test TUI with test harness servers (SSE transport) -- [ ] Test TUI with test harness servers (HTTP transport) -- [ ] Test config file loading -- [ ] Test server selection -- [ ] Verify TUI works standalone without CLI dependencies -- [ ] Update documentation +- [x] Create `tui/` workspace directory +- [x] Set up `tui/package.json` with dependencies +- [x] Configure `tui/tsconfig.json` (no path mappings needed) +- [x] Copy TUI source files from mcp-inspect +- [x] **Remove CLI functionality**: Delete `src/cli.ts` from TUI +- [x] **Remove CLI mode**: Remove CLI mode handling from `tui.tsx` entry point +- [x] **Keep utilities**: Keep transport, config, client utilities in TUI (self-contained) +- [x] Add `--tui` flag to `cli/src/cli.ts` +- [x] Implement `runTui()` function in launcher +- [x] Update root `package.json` with tui workspace +- [x] Add build scripts for TUI +- [x] Update version management scripts (`update-version.js` and `check-version-consistency.js`) to include TUI +- [x] Test config file loading +- [x] Test server selection +- [x] Verify TUI works standalone without CLI dependencies ### Phase 2: Code Sharing via Direct Imports diff --git a/package-lock.json b/package-lock.json index e31fc9577..658551861 100644 --- a/package-lock.json +++ b/package-lock.json @@ -11,7 +11,8 @@ "workspaces": [ "client", "server", - "cli" + "cli", + "tui" ], "dependencies": { "@modelcontextprotocol/inspector-cli": "^0.18.0", @@ -208,6 +209,31 @@ "dev": true, "license": "MIT" }, + "node_modules/@alcalzone/ansi-tokenize": { + "version": "0.2.3", + "resolved": "https://registry.npmjs.org/@alcalzone/ansi-tokenize/-/ansi-tokenize-0.2.3.tgz", + "integrity": "sha512-jsElTJ0sQ4wHRz+C45tfect76BwbTbgkgKByOzpCN9xG61N5V6u/glvg1CsNJhq2xJIFpKHSwG3D2wPPuEYOrQ==", + "license": "MIT", + "dependencies": { + "ansi-styles": "^6.2.1", + "is-fullwidth-code-point": "^5.0.0" + }, + "engines": { + "node": ">=18" + } + }, + "node_modules/@alcalzone/ansi-tokenize/node_modules/ansi-styles": { + "version": "6.2.3", + "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-6.2.3.tgz", + "integrity": "sha512-4Dj6M28JB+oAH8kFkTLUo+a2jwOFkuqb3yucU0CANcRRUbxS0cP0nZYCGjcc3BNXwRIsUVmDGgzawme7zvJHvg==", + "license": "MIT", + "engines": { + "node": ">=12" + }, + "funding": { + "url": "https://github.com/chalk/ansi-styles?sponsor=1" + } + }, "node_modules/@alloc/quick-lru": { "version": "5.2.0", "resolved": "https://registry.npmjs.org/@alloc/quick-lru/-/quick-lru-5.2.0.tgz", @@ -2435,6 +2461,10 @@ "resolved": "server", "link": true }, + "node_modules/@modelcontextprotocol/inspector-tui": { + "resolved": "tui", + "link": true + }, "node_modules/@modelcontextprotocol/sdk": { "version": "1.25.2", "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.25.2.tgz", @@ -4994,6 +5024,15 @@ "dequal": "^2.0.3" } }, + "node_modules/arr-rotate": { + "version": "1.0.0", + "resolved": "https://registry.npmjs.org/arr-rotate/-/arr-rotate-1.0.0.tgz", + "integrity": "sha512-yOzOZcR9Tn7enTF66bqKorGGH0F36vcPaSWg8fO0c0UYb3LX3VMXj5ZxEqQLNOecAhlRJ7wYZja5i4jTlnbIfQ==", + "license": 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|| >=16.0.0" + }, + "funding": { + "url": "https://github.com/sponsors/sindresorhus" + } + }, + "tui/node_modules/scheduler": { + "version": "0.27.0", + "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.27.0.tgz", + "integrity": "sha512-eNv+WrVbKu1f3vbYJT/xtiF5syA5HPIMtf9IgY/nKg0sWqzAUEvqY/xm7OcZc/qafLx/iO9FgOmeSAp4v5ti/Q==", + "license": "MIT" + }, + "tui/node_modules/type-fest": { + "version": "4.41.0", + "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-4.41.0.tgz", + "integrity": "sha512-TeTSQ6H5YHvpqVwBRcnLDCBnDOHWYu7IvGbHT6N8AOymcr9PJGjc1GTtiWZTYg0NCgYwvnYWEkVChQAr9bjfwA==", + "license": "(MIT OR CC0-1.0)", + "engines": { + "node": ">=16" + }, + "funding": { + "url": "https://github.com/sponsors/sindresorhus" + } + }, + "tui/node_modules/undici-types": { + "version": "7.16.0", + "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz", + "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==", + "dev": true, + "license": "MIT" } } } diff --git a/package.json b/package.json index 07f84843c..1eaecaedc 100644 --- a/package.json +++ b/package.json @@ -14,18 +14,21 @@ "client/bin", "client/dist", "server/build", - "cli/build" + "cli/build", + "tui/build" ], "workspaces": [ "client", "server", - "cli" + "cli", + "tui" ], "scripts": { - "build": "npm run build-server && npm run build-client && npm run build-cli", + "build": "npm run build-server && npm run build-client && npm run build-cli && npm run build-tui", "build-server": "cd server && npm run build", "build-client": "cd client && npm run build", "build-cli": "cd cli && npm run build", + "build-tui": "cd tui && npm run build", "clean": "rimraf ./node_modules ./client/node_modules ./cli/node_modules ./build ./client/dist ./server/build ./cli/build ./package-lock.json && npm install", "dev": "node client/bin/start.js --dev", "dev:windows": "node client/bin/start.js --dev", diff --git a/scripts/check-version-consistency.js b/scripts/check-version-consistency.js index 379931dea..c08e3d902 100755 --- a/scripts/check-version-consistency.js +++ b/scripts/check-version-consistency.js @@ -21,6 +21,7 @@ const packagePaths = [ "client/package.json", "server/package.json", "cli/package.json", + "tui/package.json", ]; const versions = new Map(); @@ -135,6 +136,7 @@ if (!fs.existsSync(lockPath)) { { path: "client", name: "@modelcontextprotocol/inspector-client" }, { path: "server", name: "@modelcontextprotocol/inspector-server" }, { path: "cli", name: "@modelcontextprotocol/inspector-cli" }, + { path: "tui", name: "@modelcontextprotocol/inspector-tui" }, ]; workspacePackages.forEach(({ path, name }) => { diff --git a/scripts/update-version.js b/scripts/update-version.js index 91b69f3bf..b2934ab31 100755 --- a/scripts/update-version.js +++ b/scripts/update-version.js @@ -40,6 +40,7 @@ const packagePaths = [ "client/package.json", "server/package.json", "cli/package.json", + "tui/package.json", ]; const updatedFiles = []; diff --git a/tui/build/src/App.js b/tui/build/src/App.js new file mode 100644 index 000000000..57edfdb7c --- /dev/null +++ b/tui/build/src/App.js @@ -0,0 +1,1166 @@ +import { + jsx as _jsx, + Fragment as _Fragment, + jsxs as _jsxs, +} from "react/jsx-runtime"; +import { useState, useMemo, useEffect, useCallback } from "react"; +import { Box, Text, useInput, useApp } from "ink"; +import { readFileSync } from "fs"; +import { fileURLToPath } from "url"; +import { dirname, join } from "path"; +import { loadMcpServersConfig } from "./utils/config.js"; +import { useMCPClient, LoggingProxyTransport } from "./hooks/useMCPClient.js"; +import { useMessageTracking } from "./hooks/useMessageTracking.js"; +import { Tabs, tabs as tabList } from "./components/Tabs.js"; +import { InfoTab } from "./components/InfoTab.js"; +import { ResourcesTab } from "./components/ResourcesTab.js"; +import { PromptsTab } from "./components/PromptsTab.js"; +import { ToolsTab } from "./components/ToolsTab.js"; +import { NotificationsTab } from "./components/NotificationsTab.js"; +import { HistoryTab } from "./components/HistoryTab.js"; +import { ToolTestModal } from "./components/ToolTestModal.js"; +import { DetailsModal } from "./components/DetailsModal.js"; +import { createTransport, getServerType } from "./utils/transport.js"; +import { createClient } from "./utils/client.js"; +const __filename = fileURLToPath(import.meta.url); +const __dirname = dirname(__filename); +// Read package.json to get project info +// Strategy: Try multiple paths to handle both local dev and global install +// - Local dev (tsx): __dirname = src/, package.json is one level up +// - Global install: __dirname = dist/src/, package.json is two levels up +let packagePath; +let packageJson; +try { + // Try two levels up first (global install case) + packagePath = join(__dirname, "..", "..", "package.json"); + packageJson = JSON.parse(readFileSync(packagePath, "utf-8")); +} catch { + // Fall back to one level up (local dev case) + packagePath = join(__dirname, "..", "package.json"); + packageJson = JSON.parse(readFileSync(packagePath, "utf-8")); +} +function App({ configFile }) { + const { exit } = useApp(); + const [selectedServer, setSelectedServer] = useState(null); + const [activeTab, setActiveTab] = useState("info"); + const [focus, setFocus] = useState("serverList"); + const [tabCounts, setTabCounts] = useState({}); + // Tool test modal state + const [toolTestModal, setToolTestModal] = useState(null); + // Details modal state + const [detailsModal, setDetailsModal] = useState(null); + // Server state management - store state for all servers + const [serverStates, setServerStates] = useState({}); + const [serverClients, setServerClients] = useState({}); + // Message tracking + const { + history: messageHistory, + trackRequest, + trackResponse, + trackNotification, + clearHistory, + } = useMessageTracking(); + const [dimensions, setDimensions] = useState({ + width: process.stdout.columns || 80, + height: process.stdout.rows || 24, + }); + useEffect(() => { + const updateDimensions = () => { + setDimensions({ + width: process.stdout.columns || 80, + height: process.stdout.rows || 24, + }); + }; + process.stdout.on("resize", updateDimensions); + return () => { + process.stdout.off("resize", updateDimensions); + }; + }, []); + // Parse MCP configuration + const mcpConfig = useMemo(() => { + try { + return loadMcpServersConfig(configFile); + } catch (error) { + if (error instanceof Error) { + console.error(error.message); + } else { + console.error("Error loading configuration: Unknown error"); + } + process.exit(1); + } + }, [configFile]); + const serverNames = Object.keys(mcpConfig.mcpServers); + const selectedServerConfig = selectedServer + ? mcpConfig.mcpServers[selectedServer] + : null; + // Preselect the first server on mount + useEffect(() => { + if (serverNames.length > 0 && selectedServer === null) { + setSelectedServer(serverNames[0]); + } + // eslint-disable-next-line react-hooks/exhaustive-deps + }, []); + // Initialize server states for all configured servers on mount + useEffect(() => { + const initialStates = {}; + for (const serverName of serverNames) { + if (!(serverName in serverStates)) { + initialStates[serverName] = { + status: "disconnected", + error: null, + capabilities: {}, + serverInfo: undefined, + instructions: undefined, + resources: [], + prompts: [], + tools: [], + stderrLogs: [], + }; + } + } + if (Object.keys(initialStates).length > 0) { + setServerStates((prev) => ({ ...prev, ...initialStates })); + } + // eslint-disable-next-line react-hooks/exhaustive-deps + }, []); + // Memoize message tracking callbacks to prevent unnecessary re-renders + const messageTracking = useMemo(() => { + if (!selectedServer) return undefined; + return { + trackRequest: (msg) => trackRequest(selectedServer, msg), + trackResponse: (msg) => trackResponse(selectedServer, msg), + trackNotification: (msg) => trackNotification(selectedServer, msg), + }; + }, [selectedServer, trackRequest, trackResponse, trackNotification]); + // Get client for selected server (for connection management) + const { + connection, + connect: connectClient, + disconnect: disconnectClient, + } = useMCPClient(selectedServer, selectedServerConfig, messageTracking); + // Helper function to create the appropriate transport with stderr logging + const createTransportWithLogging = useCallback((config, serverName) => { + return createTransport(config, { + pipeStderr: true, + onStderr: (entry) => { + setServerStates((prev) => { + const existingState = prev[serverName]; + if (!existingState) { + // Initialize state if it doesn't exist yet + return { + ...prev, + [serverName]: { + status: "connecting", + error: null, + capabilities: {}, + serverInfo: undefined, + instructions: undefined, + resources: [], + prompts: [], + tools: [], + stderrLogs: [entry], + }, + }; + } + return { + ...prev, + [serverName]: { + ...existingState, + stderrLogs: [...(existingState.stderrLogs || []), entry].slice( + -1000, + ), // Keep last 1000 log entries + }, + }; + }); + }, + }); + }, []); + // Connect handler - connects, gets capabilities, and queries resources/prompts/tools + const handleConnect = useCallback(async () => { + if (!selectedServer || !selectedServerConfig) return; + // Capture server name immediately to avoid closure issues + const serverName = selectedServer; + const serverConfig = selectedServerConfig; + // Clear all data when connecting/reconnecting to start fresh + clearHistory(serverName); + // Clear stderr logs BEFORE connecting + setServerStates((prev) => ({ + ...prev, + [serverName]: { + ...(prev[serverName] || { + status: "disconnected", + error: null, + capabilities: {}, + resources: [], + prompts: [], + tools: [], + }), + status: "connecting", + stderrLogs: [], // Clear logs before connecting + }, + })); + // Create the appropriate transport with stderr logging + const { transport: baseTransport } = createTransportWithLogging( + serverConfig, + serverName, + ); + // Wrap with proxy transport if message tracking is enabled + const transport = messageTracking + ? new LoggingProxyTransport(baseTransport, messageTracking) + : baseTransport; + const client = createClient(transport); + try { + await client.connect(transport); + // Store client immediately + setServerClients((prev) => ({ ...prev, [serverName]: client })); + // Get server capabilities + const serverCapabilities = client.getServerCapabilities() || {}; + const capabilities = { + resources: !!serverCapabilities.resources, + prompts: !!serverCapabilities.prompts, + tools: !!serverCapabilities.tools, + }; + // Get server info (name, version) and instructions + const serverVersion = client.getServerVersion(); + const serverInfo = serverVersion + ? { + name: serverVersion.name, + version: serverVersion.version, + } + : undefined; + const instructions = client.getInstructions(); + // Query resources, prompts, and tools based on capabilities + let resources = []; + let prompts = []; + let tools = []; + if (capabilities.resources) { + try { + const result = await client.listResources(); + resources = result.resources || []; + } catch (err) { + // Ignore errors, just leave empty + } + } + if (capabilities.prompts) { + try { + const result = await client.listPrompts(); + prompts = result.prompts || []; + } catch (err) { + // Ignore errors, just leave empty + } + } + if (capabilities.tools) { + try { + const result = await client.listTools(); + tools = result.tools || []; + } catch (err) { + // Ignore errors, just leave empty + } + } + // Update server state - use captured serverName to ensure we update the correct server + // Preserve stderrLogs that were captured during connection (after we cleared them before connecting) + setServerStates((prev) => ({ + ...prev, + [serverName]: { + status: "connected", + error: null, + capabilities, + serverInfo, + instructions, + resources, + prompts, + tools, + stderrLogs: prev[serverName]?.stderrLogs || [], // Preserve logs captured during connection + }, + })); + } catch (error) { + // Make sure we clean up the client on error + try { + await client.close(); + } catch (closeErr) { + // Ignore close errors + } + setServerStates((prev) => ({ + ...prev, + [serverName]: { + ...(prev[serverName] || { + status: "disconnected", + error: null, + capabilities: {}, + resources: [], + prompts: [], + tools: [], + }), + status: "error", + error: error instanceof Error ? error.message : "Unknown error", + }, + })); + } + }, [selectedServer, selectedServerConfig, messageTracking]); + // Disconnect handler + const handleDisconnect = useCallback(async () => { + if (!selectedServer) return; + await disconnectClient(); + setServerClients((prev) => { + const newClients = { ...prev }; + delete newClients[selectedServer]; + return newClients; + }); + // Preserve all data when disconnecting - only change status + setServerStates((prev) => ({ + ...prev, + [selectedServer]: { + ...prev[selectedServer], + status: "disconnected", + error: null, + // Keep all existing data: capabilities, serverInfo, instructions, resources, prompts, tools, stderrLogs + }, + })); + // Update tab counts based on preserved data + const preservedState = serverStates[selectedServer]; + if (preservedState) { + setTabCounts((prev) => ({ + ...prev, + resources: preservedState.resources?.length || 0, + prompts: preservedState.prompts?.length || 0, + tools: preservedState.tools?.length || 0, + messages: messageHistory[selectedServer]?.length || 0, + logging: preservedState.stderrLogs?.length || 0, + })); + } + }, [selectedServer, disconnectClient, serverStates, messageHistory]); + const currentServerMessages = useMemo( + () => (selectedServer ? messageHistory[selectedServer] || [] : []), + [selectedServer, messageHistory], + ); + const currentServerState = useMemo( + () => (selectedServer ? serverStates[selectedServer] || null : null), + [selectedServer, serverStates], + ); + const currentServerClient = useMemo( + () => (selectedServer ? serverClients[selectedServer] || null : null), + [selectedServer, serverClients], + ); + // Helper functions to render details modal content + const renderResourceDetails = (resource) => + _jsxs(_Fragment, { + children: [ + resource.description && + _jsx(_Fragment, { + children: resource.description + .split("\n") + .map((line, idx) => + _jsx( + Box, + { + marginTop: idx === 0 ? 0 : 0, + flexShrink: 0, + children: _jsx(Text, { dimColor: true, children: line }), + }, + `desc-${idx}`, + ), + ), + }), + resource.uri && + _jsxs(Box, { + marginTop: 1, + flexShrink: 0, + children: [ + _jsx(Text, { bold: true, children: "URI:" }), + _jsx(Box, { + paddingLeft: 2, + children: _jsx(Text, { + dimColor: true, + children: resource.uri, + }), + }), + ], + }), + resource.mimeType && + _jsxs(Box, { + marginTop: 1, + flexShrink: 0, + children: [ + _jsx(Text, { bold: true, children: "MIME Type:" }), + _jsx(Box, { + paddingLeft: 2, + children: _jsx(Text, { + dimColor: true, + children: resource.mimeType, + }), + }), + ], + }), + _jsxs(Box, { + marginTop: 1, + flexShrink: 0, + flexDirection: "column", + children: [ + _jsx(Text, { bold: true, children: "Full JSON:" }), + _jsx(Box, { + paddingLeft: 2, + children: _jsx(Text, { + dimColor: true, + children: JSON.stringify(resource, null, 2), + }), + }), + ], + }), + ], + }); + const renderPromptDetails = (prompt) => + _jsxs(_Fragment, { + children: [ + prompt.description && + _jsx(_Fragment, { + children: prompt.description + .split("\n") + .map((line, idx) => + _jsx( + Box, + { + marginTop: idx === 0 ? 0 : 0, + flexShrink: 0, + children: _jsx(Text, { dimColor: true, children: line }), + }, + `desc-${idx}`, + ), + ), + }), + prompt.arguments && + prompt.arguments.length > 0 && + _jsxs(_Fragment, { + children: [ + _jsx(Box, { + marginTop: 1, + flexShrink: 0, + children: _jsx(Text, { bold: true, children: "Arguments:" }), + }), + prompt.arguments.map((arg, idx) => + _jsx( + Box, + { + marginTop: 1, + paddingLeft: 2, + flexShrink: 0, + children: _jsxs(Text, { + dimColor: true, + children: [ + "- ", + arg.name, + ": ", + arg.description || arg.type || "string", + ], + }), + }, + `arg-${idx}`, + ), + ), + ], + }), + _jsxs(Box, { + marginTop: 1, + flexShrink: 0, + flexDirection: "column", + children: [ + _jsx(Text, { bold: true, children: "Full JSON:" }), + _jsx(Box, { + paddingLeft: 2, + children: _jsx(Text, { + dimColor: true, + children: JSON.stringify(prompt, null, 2), + }), + }), + ], + }), + ], + }); + const renderToolDetails = (tool) => + _jsxs(_Fragment, { + children: [ + tool.description && + _jsx(_Fragment, { + children: tool.description + .split("\n") + .map((line, idx) => + _jsx( + Box, + { + marginTop: idx === 0 ? 0 : 0, + flexShrink: 0, + children: _jsx(Text, { dimColor: true, children: line }), + }, + `desc-${idx}`, + ), + ), + }), + tool.inputSchema && + _jsxs(Box, { + marginTop: 1, + flexShrink: 0, + flexDirection: "column", + children: [ + _jsx(Text, { bold: true, children: "Input Schema:" }), + _jsx(Box, { + paddingLeft: 2, + children: _jsx(Text, { + dimColor: true, + children: JSON.stringify(tool.inputSchema, null, 2), + }), + }), + ], + }), + _jsxs(Box, { + marginTop: 1, + flexShrink: 0, + flexDirection: "column", + children: [ + _jsx(Text, { bold: true, children: "Full JSON:" }), + _jsx(Box, { + paddingLeft: 2, + children: _jsx(Text, { + dimColor: true, + children: JSON.stringify(tool, null, 2), + }), + }), + ], + }), + ], + }); + const renderMessageDetails = (message) => + _jsxs(_Fragment, { + children: [ + _jsx(Box, { + flexShrink: 0, + children: _jsxs(Text, { + bold: true, + children: ["Direction: ", message.direction], + }), + }), + message.duration !== undefined && + _jsx(Box, { + marginTop: 1, + flexShrink: 0, + children: _jsxs(Text, { + dimColor: true, + children: ["Duration: ", message.duration, "ms"], + }), + }), + message.direction === "request" + ? _jsxs(_Fragment, { + children: [ + _jsxs(Box, { + marginTop: 1, + flexShrink: 0, + flexDirection: "column", + children: [ + _jsx(Text, { bold: true, children: "Request:" }), + _jsx(Box, { + paddingLeft: 2, + children: _jsx(Text, { + dimColor: true, + children: JSON.stringify(message.message, null, 2), + }), + }), + ], + }), + message.response && + _jsxs(Box, { + marginTop: 1, + flexShrink: 0, + flexDirection: "column", + children: [ + _jsx(Text, { bold: true, children: "Response:" }), + _jsx(Box, { + paddingLeft: 2, + children: _jsx(Text, { + dimColor: true, + children: JSON.stringify(message.response, null, 2), + }), + }), + ], + }), + ], + }) + : _jsxs(Box, { + marginTop: 1, + flexShrink: 0, + flexDirection: "column", + children: [ + _jsx(Text, { + bold: true, + children: + message.direction === "response" + ? "Response:" + : "Notification:", + }), + _jsx(Box, { + paddingLeft: 2, + children: _jsx(Text, { + dimColor: true, + children: JSON.stringify(message.message, null, 2), + }), + }), + ], + }), + ], + }); + // Update tab counts when selected server changes + useEffect(() => { + if (!selectedServer) { + return; + } + const serverState = serverStates[selectedServer]; + if (serverState?.status === "connected") { + setTabCounts({ + resources: serverState.resources?.length || 0, + prompts: serverState.prompts?.length || 0, + tools: serverState.tools?.length || 0, + messages: messageHistory[selectedServer]?.length || 0, + }); + } else if (serverState?.status !== "connecting") { + // Reset counts for disconnected or error states + setTabCounts({ + resources: 0, + prompts: 0, + tools: 0, + messages: messageHistory[selectedServer]?.length || 0, + }); + } + }, [selectedServer, serverStates, messageHistory]); + // Keep focus state consistent when switching tabs + useEffect(() => { + if (activeTab === "messages") { + if (focus === "tabContentList" || focus === "tabContentDetails") { + setFocus("messagesList"); + } + } else { + if (focus === "messagesList" || focus === "messagesDetail") { + setFocus("tabContentList"); + } + } + }, [activeTab]); // intentionally not depending on focus to avoid loops + // Switch away from logging tab if server is not stdio + useEffect(() => { + if (activeTab === "logging" && selectedServerConfig) { + const serverType = getServerType(selectedServerConfig); + if (serverType !== "stdio") { + setActiveTab("info"); + } + } + }, [selectedServerConfig, activeTab, getServerType]); + useInput((input, key) => { + // Don't process input when modal is open + if (toolTestModal || detailsModal) { + return; + } + if (key.ctrl && input === "c") { + exit(); + } + // Exit accelerators + if (key.escape) { + exit(); + } + // Tab switching with accelerator keys (first character of tab name) + const tabAccelerators = Object.fromEntries( + tabList.map((tab) => [tab.accelerator, tab.id]), + ); + if (tabAccelerators[input.toLowerCase()]) { + setActiveTab(tabAccelerators[input.toLowerCase()]); + setFocus("tabs"); + } else if (key.tab && !key.shift) { + // Flat focus order: servers -> tabs -> list -> details -> wrap to servers + const focusOrder = + activeTab === "messages" + ? ["serverList", "tabs", "messagesList", "messagesDetail"] + : ["serverList", "tabs", "tabContentList", "tabContentDetails"]; + const currentIndex = focusOrder.indexOf(focus); + const nextIndex = (currentIndex + 1) % focusOrder.length; + setFocus(focusOrder[nextIndex]); + } else if (key.tab && key.shift) { + // Reverse order: servers <- tabs <- list <- details <- wrap to servers + const focusOrder = + activeTab === "messages" + ? ["serverList", "tabs", "messagesList", "messagesDetail"] + : ["serverList", "tabs", "tabContentList", "tabContentDetails"]; + const currentIndex = focusOrder.indexOf(focus); + const prevIndex = + currentIndex > 0 ? currentIndex - 1 : focusOrder.length - 1; + setFocus(focusOrder[prevIndex]); + } else if (key.upArrow || key.downArrow) { + // Arrow keys only work in the focused pane + if (focus === "serverList") { + // Arrow key navigation for server list + if (key.upArrow) { + if (selectedServer === null) { + setSelectedServer(serverNames[serverNames.length - 1] || null); + } else { + const currentIndex = serverNames.indexOf(selectedServer); + const newIndex = + currentIndex > 0 ? currentIndex - 1 : serverNames.length - 1; + setSelectedServer(serverNames[newIndex] || null); + } + } else if (key.downArrow) { + if (selectedServer === null) { + setSelectedServer(serverNames[0] || null); + } else { + const currentIndex = serverNames.indexOf(selectedServer); + const newIndex = + currentIndex < serverNames.length - 1 ? currentIndex + 1 : 0; + setSelectedServer(serverNames[newIndex] || null); + } + } + return; // Handled, don't let other handlers process + } + // If focus is on tabs, tabContentList, tabContentDetails, messagesList, or messagesDetail, + // arrow keys will be handled by those components - don't do anything here + } else if (focus === "tabs" && (key.leftArrow || key.rightArrow)) { + // Left/Right arrows switch tabs when tabs are focused + const tabs = [ + "info", + "resources", + "prompts", + "tools", + "messages", + "logging", + ]; + const currentIndex = tabs.indexOf(activeTab); + if (key.leftArrow) { + const newIndex = currentIndex > 0 ? currentIndex - 1 : tabs.length - 1; + setActiveTab(tabs[newIndex]); + } else if (key.rightArrow) { + const newIndex = currentIndex < tabs.length - 1 ? currentIndex + 1 : 0; + setActiveTab(tabs[newIndex]); + } + } + // Accelerator keys for connect/disconnect (work from anywhere) + if (selectedServer) { + const serverState = serverStates[selectedServer]; + if ( + input.toLowerCase() === "c" && + (serverState?.status === "disconnected" || + serverState?.status === "error") + ) { + handleConnect(); + } else if ( + input.toLowerCase() === "d" && + (serverState?.status === "connected" || + serverState?.status === "connecting") + ) { + handleDisconnect(); + } + } + }); + // Calculate layout dimensions + const headerHeight = 1; + const tabsHeight = 1; + // Server details will be flexible - calculate remaining space for content + const availableHeight = dimensions.height - headerHeight - tabsHeight; + // Reserve space for server details (will grow as needed, but we'll use flexGrow) + const serverDetailsMinHeight = 3; + const contentHeight = availableHeight - serverDetailsMinHeight; + const serverListWidth = Math.floor(dimensions.width * 0.3); + const contentWidth = dimensions.width - serverListWidth; + const getStatusColor = (status) => { + switch (status) { + case "connected": + return "green"; + case "connecting": + return "yellow"; + case "error": + return "red"; + default: + return "gray"; + } + }; + const getStatusSymbol = (status) => { + switch (status) { + case "connected": + return "●"; + case "connecting": + return "◐"; + case "error": + return "✗"; + default: + return "○"; + } + }; + return _jsxs(Box, { + flexDirection: "column", + width: dimensions.width, + height: dimensions.height, + children: [ + _jsxs(Box, { + width: dimensions.width, + height: headerHeight, + borderStyle: "single", + borderTop: false, + borderLeft: false, + borderRight: false, + paddingX: 1, + justifyContent: "space-between", + alignItems: "center", + children: [ + _jsxs(Box, { + children: [ + _jsx(Text, { + bold: true, + color: "cyan", + children: packageJson.name, + }), + _jsxs(Text, { + dimColor: true, + children: [" - ", packageJson.description], + }), + ], + }), + _jsxs(Text, { dimColor: true, children: ["v", packageJson.version] }), + ], + }), + _jsxs(Box, { + flexDirection: "row", + height: availableHeight + tabsHeight, + width: dimensions.width, + children: [ + _jsxs(Box, { + width: serverListWidth, + height: availableHeight + tabsHeight, + borderStyle: "single", + borderTop: false, + borderBottom: false, + borderLeft: false, + borderRight: true, + flexDirection: "column", + paddingX: 1, + children: [ + _jsx(Box, { + marginTop: 1, + marginBottom: 1, + children: _jsx(Text, { + bold: true, + backgroundColor: + focus === "serverList" ? "yellow" : undefined, + children: "MCP Servers", + }), + }), + _jsx(Box, { + flexDirection: "column", + flexGrow: 1, + children: serverNames.map((serverName) => { + const isSelected = selectedServer === serverName; + return _jsx( + Box, + { + paddingY: 0, + children: _jsxs(Text, { + children: [isSelected ? "▶ " : " ", serverName], + }), + }, + serverName, + ); + }), + }), + _jsx(Box, { + flexShrink: 0, + height: 1, + justifyContent: "center", + backgroundColor: "gray", + children: _jsx(Text, { + bold: true, + color: "white", + children: "ESC to exit", + }), + }), + ], + }), + _jsxs(Box, { + flexGrow: 1, + height: availableHeight + tabsHeight, + flexDirection: "column", + children: [ + _jsx(Box, { + width: contentWidth, + borderStyle: "single", + borderTop: false, + borderLeft: false, + borderRight: false, + borderBottom: true, + paddingX: 1, + paddingY: 1, + flexDirection: "column", + flexShrink: 0, + children: _jsx(Box, { + flexDirection: "column", + children: _jsxs(Box, { + flexDirection: "row", + justifyContent: "space-between", + alignItems: "center", + children: [ + _jsx(Text, { + bold: true, + color: "cyan", + children: selectedServer, + }), + _jsx(Box, { + flexDirection: "row", + alignItems: "center", + children: + currentServerState && + _jsxs(_Fragment, { + children: [ + _jsxs(Text, { + color: getStatusColor( + currentServerState.status, + ), + children: [ + getStatusSymbol(currentServerState.status), + " ", + currentServerState.status, + ], + }), + _jsx(Text, { children: " " }), + (currentServerState?.status === "disconnected" || + currentServerState?.status === "error") && + _jsxs(Text, { + color: "cyan", + bold: true, + children: [ + "[", + _jsx(Text, { + underline: true, + children: "C", + }), + "onnect]", + ], + }), + (currentServerState?.status === "connected" || + currentServerState?.status === "connecting") && + _jsxs(Text, { + color: "red", + bold: true, + children: [ + "[", + _jsx(Text, { + underline: true, + children: "D", + }), + "isconnect]", + ], + }), + ], + }), + }), + ], + }), + }), + }), + _jsx(Tabs, { + activeTab: activeTab, + onTabChange: setActiveTab, + width: contentWidth, + counts: tabCounts, + focused: focus === "tabs", + showLogging: selectedServerConfig + ? getServerType(selectedServerConfig) === "stdio" + : false, + }), + _jsxs(Box, { + flexGrow: 1, + width: contentWidth, + borderTop: false, + borderLeft: false, + borderRight: false, + borderBottom: false, + children: [ + activeTab === "info" && + _jsx(InfoTab, { + serverName: selectedServer, + serverConfig: selectedServerConfig, + serverState: currentServerState, + width: contentWidth, + height: contentHeight, + focused: + focus === "tabContentList" || + focus === "tabContentDetails", + }), + currentServerState?.status === "connected" && + currentServerClient + ? _jsxs(_Fragment, { + children: [ + activeTab === "resources" && + _jsx( + ResourcesTab, + { + resources: currentServerState.resources, + client: currentServerClient, + width: contentWidth, + height: contentHeight, + onCountChange: (count) => + setTabCounts((prev) => ({ + ...prev, + resources: count, + })), + focusedPane: + focus === "tabContentDetails" + ? "details" + : focus === "tabContentList" + ? "list" + : null, + onViewDetails: (resource) => + setDetailsModal({ + title: `Resource: ${resource.name || resource.uri || "Unknown"}`, + content: renderResourceDetails(resource), + }), + modalOpen: !!(toolTestModal || detailsModal), + }, + `resources-${selectedServer}`, + ), + activeTab === "prompts" && + _jsx( + PromptsTab, + { + prompts: currentServerState.prompts, + client: currentServerClient, + width: contentWidth, + height: contentHeight, + onCountChange: (count) => + setTabCounts((prev) => ({ + ...prev, + prompts: count, + })), + focusedPane: + focus === "tabContentDetails" + ? "details" + : focus === "tabContentList" + ? "list" + : null, + onViewDetails: (prompt) => + setDetailsModal({ + title: `Prompt: ${prompt.name || "Unknown"}`, + content: renderPromptDetails(prompt), + }), + modalOpen: !!(toolTestModal || detailsModal), + }, + `prompts-${selectedServer}`, + ), + activeTab === "tools" && + _jsx( + ToolsTab, + { + tools: currentServerState.tools, + client: currentServerClient, + width: contentWidth, + height: contentHeight, + onCountChange: (count) => + setTabCounts((prev) => ({ + ...prev, + tools: count, + })), + focusedPane: + focus === "tabContentDetails" + ? "details" + : focus === "tabContentList" + ? "list" + : null, + onTestTool: (tool) => + setToolTestModal({ + tool, + client: currentServerClient, + }), + onViewDetails: (tool) => + setDetailsModal({ + title: `Tool: ${tool.name || "Unknown"}`, + content: renderToolDetails(tool), + }), + modalOpen: !!(toolTestModal || detailsModal), + }, + `tools-${selectedServer}`, + ), + activeTab === "messages" && + _jsx(HistoryTab, { + serverName: selectedServer, + messages: currentServerMessages, + width: contentWidth, + height: contentHeight, + onCountChange: (count) => + setTabCounts((prev) => ({ + ...prev, + messages: count, + })), + focusedPane: + focus === "messagesDetail" + ? "details" + : focus === "messagesList" + ? "messages" + : null, + modalOpen: !!(toolTestModal || detailsModal), + onViewDetails: (message) => { + const label = + message.direction === "request" && + "method" in message.message + ? message.message.method + : message.direction === "response" + ? "Response" + : message.direction === "notification" && + "method" in message.message + ? message.message.method + : "Message"; + setDetailsModal({ + title: `Message: ${label}`, + content: renderMessageDetails(message), + }); + }, + }), + activeTab === "logging" && + _jsx(NotificationsTab, { + client: currentServerClient, + stderrLogs: currentServerState?.stderrLogs || [], + width: contentWidth, + height: contentHeight, + onCountChange: (count) => + setTabCounts((prev) => ({ + ...prev, + logging: count, + })), + focused: + focus === "tabContentList" || + focus === "tabContentDetails", + }), + ], + }) + : activeTab !== "info" && selectedServer + ? _jsx(Box, { + paddingX: 1, + paddingY: 1, + children: _jsx(Text, { + dimColor: true, + children: "Server not connected", + }), + }) + : null, + ], + }), + ], + }), + ], + }), + toolTestModal && + _jsx(ToolTestModal, { + tool: toolTestModal.tool, + client: toolTestModal.client, + width: dimensions.width, + height: dimensions.height, + onClose: () => setToolTestModal(null), + }), + detailsModal && + _jsx(DetailsModal, { + title: detailsModal.title, + content: detailsModal.content, + width: dimensions.width, + height: dimensions.height, + onClose: () => setDetailsModal(null), + }), + ], + }); +} +export default App; diff --git a/tui/build/src/components/DetailsModal.js b/tui/build/src/components/DetailsModal.js new file mode 100644 index 000000000..4986f47fa --- /dev/null +++ b/tui/build/src/components/DetailsModal.js @@ -0,0 +1,82 @@ +import { jsx as _jsx, jsxs as _jsxs } from "react/jsx-runtime"; +import React, { useRef } from "react"; +import { Box, Text, useInput } from "ink"; +import { ScrollView } from "ink-scroll-view"; +export function DetailsModal({ title, content, width, height, onClose }) { + const scrollViewRef = useRef(null); + // Use full terminal dimensions + const [terminalDimensions, setTerminalDimensions] = React.useState({ + width: process.stdout.columns || width, + height: process.stdout.rows || height, + }); + React.useEffect(() => { + const updateDimensions = () => { + setTerminalDimensions({ + width: process.stdout.columns || width, + height: process.stdout.rows || height, + }); + }; + process.stdout.on("resize", updateDimensions); + updateDimensions(); + return () => { + process.stdout.off("resize", updateDimensions); + }; + }, [width, height]); + // Handle escape to close and scrolling + useInput( + (input, key) => { + if (key.escape) { + onClose(); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.pageDown) { + const viewportHeight = scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } else if (key.pageUp) { + const viewportHeight = scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } + }, + { isActive: true }, + ); + // Calculate modal dimensions - use almost full screen + const modalWidth = terminalDimensions.width - 2; + const modalHeight = terminalDimensions.height - 2; + return _jsx(Box, { + position: "absolute", + width: terminalDimensions.width, + height: terminalDimensions.height, + flexDirection: "column", + justifyContent: "center", + alignItems: "center", + children: _jsxs(Box, { + width: modalWidth, + height: modalHeight, + borderStyle: "single", + borderColor: "cyan", + flexDirection: "column", + paddingX: 1, + paddingY: 1, + backgroundColor: "black", + children: [ + _jsxs(Box, { + flexShrink: 0, + marginBottom: 1, + children: [ + _jsx(Text, { bold: true, color: "cyan", children: title }), + _jsx(Text, { children: " " }), + _jsx(Text, { dimColor: true, children: "(Press ESC to close)" }), + ], + }), + _jsx(Box, { + flexGrow: 1, + flexDirection: "column", + overflow: "hidden", + children: _jsx(ScrollView, { ref: scrollViewRef, children: content }), + }), + ], + }), + }); +} diff --git a/tui/build/src/components/HistoryTab.js b/tui/build/src/components/HistoryTab.js new file mode 100644 index 000000000..46b9650b2 --- /dev/null +++ b/tui/build/src/components/HistoryTab.js @@ -0,0 +1,399 @@ +import { + jsxs as _jsxs, + jsx as _jsx, + Fragment as _Fragment, +} from "react/jsx-runtime"; +import React, { useState, useEffect, useRef } from "react"; +import { Box, Text, useInput } from "ink"; +import { ScrollView } from "ink-scroll-view"; +export function HistoryTab({ + serverName, + messages, + width, + height, + onCountChange, + focusedPane = null, + onViewDetails, + modalOpen = false, +}) { + const [selectedIndex, setSelectedIndex] = useState(0); + const [leftScrollOffset, setLeftScrollOffset] = useState(0); + const scrollViewRef = useRef(null); + // Calculate visible area for left pane (accounting for header) + const leftPaneHeight = height - 2; // Subtract header space + const visibleMessages = messages.slice( + leftScrollOffset, + leftScrollOffset + leftPaneHeight, + ); + const selectedMessage = messages[selectedIndex] || null; + // Handle arrow key navigation and scrolling when focused + useInput( + (input, key) => { + if (focusedPane === "messages") { + if (key.upArrow) { + if (selectedIndex > 0) { + const newIndex = selectedIndex - 1; + setSelectedIndex(newIndex); + // Auto-scroll if selection goes above visible area + if (newIndex < leftScrollOffset) { + setLeftScrollOffset(newIndex); + } + } + } else if (key.downArrow) { + if (selectedIndex < messages.length - 1) { + const newIndex = selectedIndex + 1; + setSelectedIndex(newIndex); + // Auto-scroll if selection goes below visible area + if (newIndex >= leftScrollOffset + leftPaneHeight) { + setLeftScrollOffset(Math.max(0, newIndex - leftPaneHeight + 1)); + } + } + } else if (key.pageUp) { + setLeftScrollOffset(Math.max(0, leftScrollOffset - leftPaneHeight)); + setSelectedIndex(Math.max(0, selectedIndex - leftPaneHeight)); + } else if (key.pageDown) { + const maxScroll = Math.max(0, messages.length - leftPaneHeight); + setLeftScrollOffset( + Math.min(maxScroll, leftScrollOffset + leftPaneHeight), + ); + setSelectedIndex( + Math.min(messages.length - 1, selectedIndex + leftPaneHeight), + ); + } + return; + } + // details scrolling (only when details pane is focused) + if (focusedPane === "details") { + // Handle '+' key to view in full screen modal + if (input === "+" && selectedMessage && onViewDetails) { + onViewDetails(selectedMessage); + return; + } + if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } + } + }, + { isActive: !modalOpen && focusedPane !== undefined }, + ); + // Update count when messages change + React.useEffect(() => { + onCountChange?.(messages.length); + // eslint-disable-next-line react-hooks/exhaustive-deps + }, [messages.length]); + // Reset selection when messages change + useEffect(() => { + if (selectedIndex >= messages.length) { + setSelectedIndex(Math.max(0, messages.length - 1)); + } + }, [messages.length, selectedIndex]); + // Reset scroll when message selection changes + useEffect(() => { + scrollViewRef.current?.scrollTo(0); + }, [selectedIndex]); + const listWidth = Math.floor(width * 0.4); + const detailWidth = width - listWidth; + return _jsxs(Box, { + flexDirection: "row", + width: width, + height: height, + children: [ + _jsxs(Box, { + width: listWidth, + height: height, + borderStyle: "single", + borderTop: false, + borderBottom: false, + borderLeft: false, + borderRight: true, + flexDirection: "column", + paddingX: 1, + children: [ + _jsx(Box, { + paddingY: 1, + flexShrink: 0, + children: _jsxs(Text, { + bold: true, + backgroundColor: + focusedPane === "messages" ? "yellow" : undefined, + children: ["Messages (", messages.length, ")"], + }), + }), + messages.length === 0 + ? _jsx(Box, { + paddingY: 1, + children: _jsx(Text, { + dimColor: true, + children: "No messages", + }), + }) + : _jsx(Box, { + flexDirection: "column", + flexGrow: 1, + minHeight: 0, + children: visibleMessages.map((msg, visibleIndex) => { + const actualIndex = leftScrollOffset + visibleIndex; + const isSelected = actualIndex === selectedIndex; + let label; + if (msg.direction === "request" && "method" in msg.message) { + label = msg.message.method; + } else if (msg.direction === "response") { + if ("result" in msg.message) { + label = "Response (result)"; + } else if ("error" in msg.message) { + label = `Response (error: ${msg.message.error.code})`; + } else { + label = "Response"; + } + } else if ( + msg.direction === "notification" && + "method" in msg.message + ) { + label = msg.message.method; + } else { + label = "Unknown"; + } + const direction = + msg.direction === "request" + ? "→" + : msg.direction === "response" + ? "←" + : "•"; + const hasResponse = msg.response !== undefined; + return _jsx( + Box, + { + paddingY: 0, + children: _jsxs(Text, { + color: isSelected ? "white" : "white", + children: [ + isSelected ? "▶ " : " ", + direction, + " ", + label, + hasResponse + ? " ✓" + : msg.direction === "request" + ? " ..." + : "", + ], + }), + }, + msg.id, + ); + }), + }), + ], + }), + _jsx(Box, { + width: detailWidth, + height: height, + paddingX: 1, + flexDirection: "column", + flexShrink: 0, + borderStyle: "single", + borderTop: false, + borderBottom: false, + borderLeft: false, + borderRight: false, + children: selectedMessage + ? _jsxs(_Fragment, { + children: [ + _jsxs(Box, { + flexDirection: "row", + justifyContent: "space-between", + flexShrink: 0, + paddingTop: 1, + children: [ + _jsx(Text, { + bold: true, + backgroundColor: + focusedPane === "details" ? "yellow" : undefined, + ...(focusedPane === "details" ? {} : { color: "cyan" }), + children: + selectedMessage.direction === "request" && + "method" in selectedMessage.message + ? selectedMessage.message.method + : selectedMessage.direction === "response" + ? "Response" + : selectedMessage.direction === "notification" && + "method" in selectedMessage.message + ? selectedMessage.message.method + : "Message", + }), + _jsx(Text, { + dimColor: true, + children: selectedMessage.timestamp.toLocaleTimeString(), + }), + ], + }), + _jsxs(ScrollView, { + ref: scrollViewRef, + height: height - 5, + children: [ + _jsxs(Box, { + marginTop: 1, + flexDirection: "column", + flexShrink: 0, + children: [ + _jsxs(Text, { + bold: true, + children: ["Direction: ", selectedMessage.direction], + }), + selectedMessage.duration !== undefined && + _jsx(Box, { + marginTop: 1, + children: _jsxs(Text, { + dimColor: true, + children: [ + "Duration: ", + selectedMessage.duration, + "ms", + ], + }), + }), + ], + }), + selectedMessage.direction === "request" + ? _jsxs(_Fragment, { + children: [ + _jsx(Box, { + marginTop: 1, + flexShrink: 0, + children: _jsx(Text, { + bold: true, + children: "Request:", + }), + }), + JSON.stringify(selectedMessage.message, null, 2) + .split("\n") + .map((line, idx) => + _jsx( + Box, + { + marginTop: idx === 0 ? 1 : 0, + paddingLeft: 2, + flexShrink: 0, + children: _jsx(Text, { + dimColor: true, + children: line, + }), + }, + `req-${idx}`, + ), + ), + selectedMessage.response + ? _jsxs(_Fragment, { + children: [ + _jsx(Box, { + marginTop: 1, + flexShrink: 0, + children: _jsx(Text, { + bold: true, + children: "Response:", + }), + }), + JSON.stringify( + selectedMessage.response, + null, + 2, + ) + .split("\n") + .map((line, idx) => + _jsx( + Box, + { + marginTop: idx === 0 ? 1 : 0, + paddingLeft: 2, + flexShrink: 0, + children: _jsx(Text, { + dimColor: true, + children: line, + }), + }, + `resp-${idx}`, + ), + ), + ], + }) + : _jsx(Box, { + marginTop: 1, + flexShrink: 0, + children: _jsx(Text, { + dimColor: true, + italic: true, + children: "Waiting for response...", + }), + }), + ], + }) + : _jsxs(_Fragment, { + children: [ + _jsx(Box, { + marginTop: 1, + flexShrink: 0, + children: _jsx(Text, { + bold: true, + children: + selectedMessage.direction === "response" + ? "Response:" + : "Notification:", + }), + }), + JSON.stringify(selectedMessage.message, null, 2) + .split("\n") + .map((line, idx) => + _jsx( + Box, + { + marginTop: idx === 0 ? 1 : 0, + paddingLeft: 2, + flexShrink: 0, + children: _jsx(Text, { + dimColor: true, + children: line, + }), + }, + `msg-${idx}`, + ), + ), + ], + }), + ], + }), + focusedPane === "details" && + _jsx(Box, { + flexShrink: 0, + height: 1, + justifyContent: "center", + backgroundColor: "gray", + children: _jsx(Text, { + bold: true, + color: "white", + children: "\u2191/\u2193 to scroll, + to zoom", + }), + }), + ], + }) + : _jsx(Box, { + paddingY: 1, + flexShrink: 0, + children: _jsx(Text, { + dimColor: true, + children: "Select a message to view details", + }), + }), + }), + ], + }); +} diff --git a/tui/build/src/components/InfoTab.js b/tui/build/src/components/InfoTab.js new file mode 100644 index 000000000..65c990ce3 --- /dev/null +++ b/tui/build/src/components/InfoTab.js @@ -0,0 +1,327 @@ +import { + jsx as _jsx, + jsxs as _jsxs, + Fragment as _Fragment, +} from "react/jsx-runtime"; +import { useRef } from "react"; +import { Box, Text, useInput } from "ink"; +import { ScrollView } from "ink-scroll-view"; +export function InfoTab({ + serverName, + serverConfig, + serverState, + width, + height, + focused = false, +}) { + const scrollViewRef = useRef(null); + // Handle keyboard input for scrolling + useInput( + (input, key) => { + if (focused) { + if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } + } + }, + { isActive: focused }, + ); + return _jsxs(Box, { + width: width, + height: height, + flexDirection: "column", + paddingX: 1, + children: [ + _jsx(Box, { + paddingY: 1, + flexShrink: 0, + children: _jsx(Text, { + bold: true, + backgroundColor: focused ? "yellow" : undefined, + children: "Info", + }), + }), + serverName + ? _jsxs(_Fragment, { + children: [ + _jsx(Box, { + height: height - 4, + overflow: "hidden", + paddingTop: 1, + children: _jsxs(ScrollView, { + ref: scrollViewRef, + height: height - 4, + children: [ + _jsx(Box, { + flexShrink: 0, + marginTop: 1, + children: _jsx(Text, { + bold: true, + children: "Server Configuration", + }), + }), + serverConfig + ? _jsx(Box, { + flexShrink: 0, + marginTop: 1, + paddingLeft: 2, + flexDirection: "column", + children: + serverConfig.type === undefined || + serverConfig.type === "stdio" + ? _jsxs(_Fragment, { + children: [ + _jsx(Text, { + dimColor: true, + children: "Type: stdio", + }), + _jsxs(Text, { + dimColor: true, + children: [ + "Command: ", + serverConfig.command, + ], + }), + serverConfig.args && + serverConfig.args.length > 0 && + _jsxs(Box, { + marginTop: 1, + flexDirection: "column", + children: [ + _jsx(Text, { + dimColor: true, + children: "Args:", + }), + serverConfig.args.map((arg, idx) => + _jsx( + Box, + { + paddingLeft: 2, + marginTop: idx === 0 ? 0 : 0, + children: _jsx(Text, { + dimColor: true, + children: arg, + }), + }, + `arg-${idx}`, + ), + ), + ], + }), + serverConfig.env && + Object.keys(serverConfig.env).length > + 0 && + _jsx(Box, { + marginTop: 1, + children: _jsxs(Text, { + dimColor: true, + children: [ + "Env: ", + Object.entries(serverConfig.env) + .map(([k, v]) => `${k}=${v}`) + .join(", "), + ], + }), + }), + serverConfig.cwd && + _jsx(Box, { + marginTop: 1, + children: _jsxs(Text, { + dimColor: true, + children: ["CWD: ", serverConfig.cwd], + }), + }), + ], + }) + : serverConfig.type === "sse" + ? _jsxs(_Fragment, { + children: [ + _jsx(Text, { + dimColor: true, + children: "Type: sse", + }), + _jsxs(Text, { + dimColor: true, + children: ["URL: ", serverConfig.url], + }), + serverConfig.headers && + Object.keys(serverConfig.headers) + .length > 0 && + _jsx(Box, { + marginTop: 1, + children: _jsxs(Text, { + dimColor: true, + children: [ + "Headers: ", + Object.entries( + serverConfig.headers, + ) + .map(([k, v]) => `${k}=${v}`) + .join(", "), + ], + }), + }), + ], + }) + : _jsxs(_Fragment, { + children: [ + _jsx(Text, { + dimColor: true, + children: "Type: streamableHttp", + }), + _jsxs(Text, { + dimColor: true, + children: ["URL: ", serverConfig.url], + }), + serverConfig.headers && + Object.keys(serverConfig.headers) + .length > 0 && + _jsx(Box, { + marginTop: 1, + children: _jsxs(Text, { + dimColor: true, + children: [ + "Headers: ", + Object.entries( + serverConfig.headers, + ) + .map(([k, v]) => `${k}=${v}`) + .join(", "), + ], + }), + }), + ], + }), + }) + : _jsx(Box, { + marginTop: 1, + paddingLeft: 2, + children: _jsx(Text, { + dimColor: true, + children: "No configuration available", + }), + }), + serverState && + serverState.status === "connected" && + serverState.serverInfo && + _jsxs(_Fragment, { + children: [ + _jsx(Box, { + flexShrink: 0, + marginTop: 2, + children: _jsx(Text, { + bold: true, + children: "Server Information", + }), + }), + _jsxs(Box, { + flexShrink: 0, + marginTop: 1, + paddingLeft: 2, + flexDirection: "column", + children: [ + serverState.serverInfo.name && + _jsxs(Text, { + dimColor: true, + children: [ + "Name: ", + serverState.serverInfo.name, + ], + }), + serverState.serverInfo.version && + _jsx(Box, { + marginTop: 1, + children: _jsxs(Text, { + dimColor: true, + children: [ + "Version: ", + serverState.serverInfo.version, + ], + }), + }), + serverState.instructions && + _jsxs(Box, { + marginTop: 1, + flexDirection: "column", + children: [ + _jsx(Text, { + dimColor: true, + children: "Instructions:", + }), + _jsx(Box, { + paddingLeft: 2, + marginTop: 1, + children: _jsx(Text, { + dimColor: true, + children: serverState.instructions, + }), + }), + ], + }), + ], + }), + ], + }), + serverState && + serverState.status === "error" && + _jsxs(Box, { + flexShrink: 0, + marginTop: 2, + children: [ + _jsx(Text, { + bold: true, + color: "red", + children: "Error", + }), + serverState.error && + _jsx(Box, { + marginTop: 1, + paddingLeft: 2, + children: _jsx(Text, { + color: "red", + children: serverState.error, + }), + }), + ], + }), + serverState && + serverState.status === "disconnected" && + _jsx(Box, { + flexShrink: 0, + marginTop: 2, + children: _jsx(Text, { + dimColor: true, + children: "Server not connected", + }), + }), + ], + }), + }), + focused && + _jsx(Box, { + flexShrink: 0, + height: 1, + justifyContent: "center", + backgroundColor: "gray", + children: _jsx(Text, { + bold: true, + color: "white", + children: "\u2191/\u2193 to scroll, + to zoom", + }), + }), + ], + }) + : null, + ], + }); +} diff --git a/tui/build/src/components/NotificationsTab.js b/tui/build/src/components/NotificationsTab.js new file mode 100644 index 000000000..3f3e91d98 --- /dev/null +++ b/tui/build/src/components/NotificationsTab.js @@ -0,0 +1,96 @@ +import { jsxs as _jsxs, jsx as _jsx } from "react/jsx-runtime"; +import { useEffect, useRef } from "react"; +import { Box, Text, useInput } from "ink"; +import { ScrollView } from "ink-scroll-view"; +export function NotificationsTab({ + client, + stderrLogs, + width, + height, + onCountChange, + focused = false, +}) { + const scrollViewRef = useRef(null); + const onCountChangeRef = useRef(onCountChange); + // Update ref when callback changes + useEffect(() => { + onCountChangeRef.current = onCountChange; + }, [onCountChange]); + useEffect(() => { + onCountChangeRef.current?.(stderrLogs.length); + // eslint-disable-next-line react-hooks/exhaustive-deps + }, [stderrLogs.length]); + // Handle keyboard input for scrolling + useInput( + (input, key) => { + if (focused) { + if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } + } + }, + { isActive: focused }, + ); + return _jsxs(Box, { + width: width, + height: height, + flexDirection: "column", + paddingX: 1, + children: [ + _jsx(Box, { + paddingY: 1, + flexShrink: 0, + children: _jsxs(Text, { + bold: true, + backgroundColor: focused ? "yellow" : undefined, + children: ["Logging (", stderrLogs.length, ")"], + }), + }), + stderrLogs.length === 0 + ? _jsx(Box, { + paddingY: 1, + children: _jsx(Text, { + dimColor: true, + children: "No stderr output yet", + }), + }) + : _jsx(ScrollView, { + ref: scrollViewRef, + height: height - 3, + children: stderrLogs.map((log, index) => + _jsxs( + Box, + { + paddingY: 0, + flexDirection: "row", + flexShrink: 0, + children: [ + _jsxs(Text, { + dimColor: true, + children: [ + "[", + log.timestamp.toLocaleTimeString(), + "]", + " ", + ], + }), + _jsx(Text, { color: "red", children: log.message }), + ], + }, + `log-${log.timestamp.getTime()}-${index}`, + ), + ), + }), + ], + }); +} diff --git a/tui/build/src/components/PromptsTab.js b/tui/build/src/components/PromptsTab.js new file mode 100644 index 000000000..63803026a --- /dev/null +++ b/tui/build/src/components/PromptsTab.js @@ -0,0 +1,235 @@ +import { + jsxs as _jsxs, + jsx as _jsx, + Fragment as _Fragment, +} from "react/jsx-runtime"; +import { useState, useEffect, useRef } from "react"; +import { Box, Text, useInput } from "ink"; +import { ScrollView } from "ink-scroll-view"; +export function PromptsTab({ + prompts, + client, + width, + height, + onCountChange, + focusedPane = null, + onViewDetails, + modalOpen = false, +}) { + const [selectedIndex, setSelectedIndex] = useState(0); + const [error, setError] = useState(null); + const scrollViewRef = useRef(null); + // Handle arrow key navigation when focused + useInput( + (input, key) => { + if (focusedPane === "list") { + // Navigate the list + if (key.upArrow && selectedIndex > 0) { + setSelectedIndex(selectedIndex - 1); + } else if (key.downArrow && selectedIndex < prompts.length - 1) { + setSelectedIndex(selectedIndex + 1); + } + return; + } + if (focusedPane === "details") { + // Handle '+' key to view in full screen modal + if (input === "+" && selectedPrompt && onViewDetails) { + onViewDetails(selectedPrompt); + return; + } + // Scroll the details pane using ink-scroll-view + if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } + } + }, + { + isActive: + !modalOpen && (focusedPane === "list" || focusedPane === "details"), + }, + ); + // Reset scroll when selection changes + useEffect(() => { + scrollViewRef.current?.scrollTo(0); + }, [selectedIndex]); + // Reset selected index when prompts array changes (different server) + useEffect(() => { + setSelectedIndex(0); + }, [prompts]); + const selectedPrompt = prompts[selectedIndex] || null; + const listWidth = Math.floor(width * 0.4); + const detailWidth = width - listWidth; + return _jsxs(Box, { + flexDirection: "row", + width: width, + height: height, + children: [ + _jsxs(Box, { + width: listWidth, + height: height, + borderStyle: "single", + borderTop: false, + borderBottom: false, + borderLeft: false, + borderRight: true, + flexDirection: "column", + paddingX: 1, + children: [ + _jsx(Box, { + paddingY: 1, + children: _jsxs(Text, { + bold: true, + backgroundColor: focusedPane === "list" ? "yellow" : undefined, + children: ["Prompts (", prompts.length, ")"], + }), + }), + error + ? _jsx(Box, { + paddingY: 1, + children: _jsx(Text, { color: "red", children: error }), + }) + : prompts.length === 0 + ? _jsx(Box, { + paddingY: 1, + children: _jsx(Text, { + dimColor: true, + children: "No prompts available", + }), + }) + : _jsx(Box, { + flexDirection: "column", + flexGrow: 1, + children: prompts.map((prompt, index) => { + const isSelected = index === selectedIndex; + return _jsx( + Box, + { + paddingY: 0, + children: _jsxs(Text, { + children: [ + isSelected ? "▶ " : " ", + prompt.name || `Prompt ${index + 1}`, + ], + }), + }, + prompt.name || index, + ); + }), + }), + ], + }), + _jsx(Box, { + width: detailWidth, + height: height, + paddingX: 1, + flexDirection: "column", + overflow: "hidden", + children: selectedPrompt + ? _jsxs(_Fragment, { + children: [ + _jsx(Box, { + flexShrink: 0, + paddingTop: 1, + children: _jsx(Text, { + bold: true, + backgroundColor: + focusedPane === "details" ? "yellow" : undefined, + ...(focusedPane === "details" ? {} : { color: "cyan" }), + children: selectedPrompt.name, + }), + }), + _jsxs(ScrollView, { + ref: scrollViewRef, + height: height - 5, + children: [ + selectedPrompt.description && + _jsx(_Fragment, { + children: selectedPrompt.description + .split("\n") + .map((line, idx) => + _jsx( + Box, + { + marginTop: idx === 0 ? 1 : 0, + flexShrink: 0, + children: _jsx(Text, { + dimColor: true, + children: line, + }), + }, + `desc-${idx}`, + ), + ), + }), + selectedPrompt.arguments && + selectedPrompt.arguments.length > 0 && + _jsxs(_Fragment, { + children: [ + _jsx(Box, { + marginTop: 1, + flexShrink: 0, + children: _jsx(Text, { + bold: true, + children: "Arguments:", + }), + }), + selectedPrompt.arguments.map((arg, idx) => + _jsx( + Box, + { + marginTop: 1, + paddingLeft: 2, + flexShrink: 0, + children: _jsxs(Text, { + dimColor: true, + children: [ + "- ", + arg.name, + ": ", + arg.description || arg.type || "string", + ], + }), + }, + `arg-${idx}`, + ), + ), + ], + }), + ], + }), + focusedPane === "details" && + _jsx(Box, { + flexShrink: 0, + height: 1, + justifyContent: "center", + backgroundColor: "gray", + children: _jsx(Text, { + bold: true, + color: "white", + children: "\u2191/\u2193 to scroll, + to zoom", + }), + }), + ], + }) + : _jsx(Box, { + paddingY: 1, + flexShrink: 0, + children: _jsx(Text, { + dimColor: true, + children: "Select a prompt to view details", + }), + }), + }), + ], + }); +} diff --git a/tui/build/src/components/ResourcesTab.js b/tui/build/src/components/ResourcesTab.js new file mode 100644 index 000000000..ce297c5fc --- /dev/null +++ b/tui/build/src/components/ResourcesTab.js @@ -0,0 +1,221 @@ +import { + jsxs as _jsxs, + jsx as _jsx, + Fragment as _Fragment, +} from "react/jsx-runtime"; +import { useState, useEffect, useRef } from "react"; +import { Box, Text, useInput } from "ink"; +import { ScrollView } from "ink-scroll-view"; +export function ResourcesTab({ + resources, + client, + width, + height, + onCountChange, + focusedPane = null, + onViewDetails, + modalOpen = false, +}) { + const [selectedIndex, setSelectedIndex] = useState(0); + const [error, setError] = useState(null); + const scrollViewRef = useRef(null); + // Handle arrow key navigation when focused + useInput( + (input, key) => { + if (focusedPane === "list") { + // Navigate the list + if (key.upArrow && selectedIndex > 0) { + setSelectedIndex(selectedIndex - 1); + } else if (key.downArrow && selectedIndex < resources.length - 1) { + setSelectedIndex(selectedIndex + 1); + } + return; + } + if (focusedPane === "details") { + // Handle '+' key to view in full screen modal + if (input === "+" && selectedResource && onViewDetails) { + onViewDetails(selectedResource); + return; + } + // Scroll the details pane using ink-scroll-view + if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } + } + }, + { + isActive: + !modalOpen && (focusedPane === "list" || focusedPane === "details"), + }, + ); + // Reset scroll when selection changes + useEffect(() => { + scrollViewRef.current?.scrollTo(0); + }, [selectedIndex]); + // Reset selected index when resources array changes (different server) + useEffect(() => { + setSelectedIndex(0); + }, [resources]); + const selectedResource = resources[selectedIndex] || null; + const listWidth = Math.floor(width * 0.4); + const detailWidth = width - listWidth; + return _jsxs(Box, { + flexDirection: "row", + width: width, + height: height, + children: [ + _jsxs(Box, { + width: listWidth, + height: height, + borderStyle: "single", + borderTop: false, + borderBottom: false, + borderLeft: false, + borderRight: true, + flexDirection: "column", + paddingX: 1, + children: [ + _jsx(Box, { + paddingY: 1, + children: _jsxs(Text, { + bold: true, + backgroundColor: focusedPane === "list" ? "yellow" : undefined, + children: ["Resources (", resources.length, ")"], + }), + }), + error + ? _jsx(Box, { + paddingY: 1, + children: _jsx(Text, { color: "red", children: error }), + }) + : resources.length === 0 + ? _jsx(Box, { + paddingY: 1, + children: _jsx(Text, { + dimColor: true, + children: "No resources available", + }), + }) + : _jsx(Box, { + flexDirection: "column", + flexGrow: 1, + children: resources.map((resource, index) => { + const isSelected = index === selectedIndex; + return _jsx( + Box, + { + paddingY: 0, + children: _jsxs(Text, { + children: [ + isSelected ? "▶ " : " ", + resource.name || + resource.uri || + `Resource ${index + 1}`, + ], + }), + }, + resource.uri || index, + ); + }), + }), + ], + }), + _jsx(Box, { + width: detailWidth, + height: height, + paddingX: 1, + flexDirection: "column", + overflow: "hidden", + children: selectedResource + ? _jsxs(_Fragment, { + children: [ + _jsx(Box, { + flexShrink: 0, + paddingTop: 1, + children: _jsx(Text, { + bold: true, + backgroundColor: + focusedPane === "details" ? "yellow" : undefined, + ...(focusedPane === "details" ? {} : { color: "cyan" }), + children: selectedResource.name || selectedResource.uri, + }), + }), + _jsxs(ScrollView, { + ref: scrollViewRef, + height: height - 5, + children: [ + selectedResource.description && + _jsx(_Fragment, { + children: selectedResource.description + .split("\n") + .map((line, idx) => + _jsx( + Box, + { + marginTop: idx === 0 ? 1 : 0, + flexShrink: 0, + children: _jsx(Text, { + dimColor: true, + children: line, + }), + }, + `desc-${idx}`, + ), + ), + }), + selectedResource.uri && + _jsx(Box, { + marginTop: 1, + flexShrink: 0, + children: _jsxs(Text, { + dimColor: true, + children: ["URI: ", selectedResource.uri], + }), + }), + selectedResource.mimeType && + _jsx(Box, { + marginTop: 1, + flexShrink: 0, + children: _jsxs(Text, { + dimColor: true, + children: ["MIME Type: ", selectedResource.mimeType], + }), + }), + ], + }), + focusedPane === "details" && + _jsx(Box, { + flexShrink: 0, + height: 1, + justifyContent: "center", + backgroundColor: "gray", + children: _jsx(Text, { + bold: true, + color: "white", + children: "\u2191/\u2193 to scroll, + to zoom", + }), + }), + ], + }) + : _jsx(Box, { + paddingY: 1, + flexShrink: 0, + children: _jsx(Text, { + dimColor: true, + children: "Select a resource to view details", + }), + }), + }), + ], + }); +} diff --git a/tui/build/src/components/Tabs.js b/tui/build/src/components/Tabs.js new file mode 100644 index 000000000..3c061ef02 --- /dev/null +++ b/tui/build/src/components/Tabs.js @@ -0,0 +1,61 @@ +import { jsx as _jsx, jsxs as _jsxs } from "react/jsx-runtime"; +import { Box, Text } from "ink"; +export const tabs = [ + { id: "info", label: "Info", accelerator: "i" }, + { id: "resources", label: "Resources", accelerator: "r" }, + { id: "prompts", label: "Prompts", accelerator: "p" }, + { id: "tools", label: "Tools", accelerator: "t" }, + { id: "messages", label: "Messages", accelerator: "m" }, + { id: "logging", label: "Logging", accelerator: "l" }, +]; +export function Tabs({ + activeTab, + onTabChange, + width, + counts = {}, + focused = false, + showLogging = true, +}) { + const visibleTabs = showLogging + ? tabs + : tabs.filter((tab) => tab.id !== "logging"); + return _jsx(Box, { + width: width, + borderStyle: "single", + borderTop: false, + borderLeft: false, + borderRight: false, + borderBottom: true, + flexDirection: "row", + justifyContent: "space-between", + flexWrap: "wrap", + paddingX: 1, + children: visibleTabs.map((tab) => { + const isActive = activeTab === tab.id; + const count = counts[tab.id]; + const countText = count !== undefined ? ` (${count})` : ""; + const firstChar = tab.label[0]; + const restOfLabel = tab.label.slice(1); + return _jsx( + Box, + { + flexShrink: 0, + children: _jsxs(Text, { + bold: isActive, + ...(isActive && focused + ? {} + : { color: isActive ? "cyan" : "gray" }), + backgroundColor: isActive && focused ? "yellow" : undefined, + children: [ + isActive ? "▶ " : " ", + _jsx(Text, { underline: true, children: firstChar }), + restOfLabel, + countText, + ], + }), + }, + tab.id, + ); + }), + }); +} diff --git a/tui/build/src/components/ToolTestModal.js b/tui/build/src/components/ToolTestModal.js new file mode 100644 index 000000000..18ab0ef08 --- /dev/null +++ b/tui/build/src/components/ToolTestModal.js @@ -0,0 +1,289 @@ +import { + jsx as _jsx, + jsxs as _jsxs, + Fragment as _Fragment, +} from "react/jsx-runtime"; +import React, { useState } from "react"; +import { Box, Text, useInput } from "ink"; +import { Form } from "ink-form"; +import { schemaToForm } from "../utils/schemaToForm.js"; +import { ScrollView } from "ink-scroll-view"; +export function ToolTestModal({ tool, client, width, height, onClose }) { + const [state, setState] = useState("form"); + const [result, setResult] = useState(null); + const scrollViewRef = React.useRef(null); + // Use full terminal dimensions instead of passed dimensions + const [terminalDimensions, setTerminalDimensions] = React.useState({ + width: process.stdout.columns || width, + height: process.stdout.rows || height, + }); + React.useEffect(() => { + const updateDimensions = () => { + setTerminalDimensions({ + width: process.stdout.columns || width, + height: process.stdout.rows || height, + }); + }; + process.stdout.on("resize", updateDimensions); + updateDimensions(); + return () => { + process.stdout.off("resize", updateDimensions); + }; + }, [width, height]); + const formStructure = tool?.inputSchema + ? schemaToForm(tool.inputSchema, tool.name || "Unknown Tool") + : { + title: `Test Tool: ${tool?.name || "Unknown"}`, + sections: [{ title: "Parameters", fields: [] }], + }; + // Reset state when modal closes + React.useEffect(() => { + return () => { + // Cleanup: reset state when component unmounts + setState("form"); + setResult(null); + }; + }, []); + // Handle all input when modal is open - prevents input from reaching underlying components + // When in form mode, only handle escape (form handles its own input) + // When in results mode, handle scrolling keys + useInput( + (input, key) => { + // Always handle escape to close modal + if (key.escape) { + setState("form"); + setResult(null); + onClose(); + return; + } + if (state === "form") { + // In form mode, let the form handle all other input + // Don't process anything else - this prevents input from reaching underlying components + return; + } + if (state === "results") { + // Allow scrolling in results view + if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } + } + }, + { isActive: true }, + ); + const handleFormSubmit = async (values) => { + if (!client || !tool) return; + setState("loading"); + const startTime = Date.now(); + try { + const response = await client.callTool({ + name: tool.name, + arguments: values, + }); + const duration = Date.now() - startTime; + // Handle MCP SDK response format + const output = response.isError + ? { error: true, content: response.content } + : response.structuredContent || response.content || response; + setResult({ + input: values, + output: response.isError ? null : output, + error: response.isError ? "Tool returned an error" : undefined, + errorDetails: response.isError ? output : undefined, + duration, + }); + setState("results"); + } catch (error) { + const duration = Date.now() - startTime; + const errorObj = + error instanceof Error + ? { message: error.message, name: error.name, stack: error.stack } + : { error: String(error) }; + setResult({ + input: values, + output: null, + error: error instanceof Error ? error.message : "Unknown error", + errorDetails: errorObj, + duration, + }); + setState("results"); + } + }; + // Calculate modal dimensions - use almost full screen + const modalWidth = terminalDimensions.width - 2; + const modalHeight = terminalDimensions.height - 2; + return _jsx(Box, { + position: "absolute", + width: terminalDimensions.width, + height: terminalDimensions.height, + flexDirection: "column", + justifyContent: "center", + alignItems: "center", + children: _jsxs(Box, { + width: modalWidth, + height: modalHeight, + borderStyle: "single", + borderColor: "cyan", + flexDirection: "column", + paddingX: 1, + paddingY: 1, + backgroundColor: "black", + children: [ + _jsxs(Box, { + flexShrink: 0, + marginBottom: 1, + children: [ + _jsx(Text, { + bold: true, + color: "cyan", + children: formStructure.title, + }), + _jsx(Text, { children: " " }), + _jsx(Text, { dimColor: true, children: "(Press ESC to close)" }), + ], + }), + _jsxs(Box, { + flexGrow: 1, + flexDirection: "column", + overflow: "hidden", + children: [ + state === "form" && + _jsx(Box, { + flexGrow: 1, + width: "100%", + children: _jsx(Form, { + form: formStructure, + onSubmit: handleFormSubmit, + }), + }), + state === "loading" && + _jsx(Box, { + flexGrow: 1, + justifyContent: "center", + alignItems: "center", + children: _jsx(Text, { + color: "yellow", + children: "Calling tool...", + }), + }), + state === "results" && + result && + _jsx(Box, { + flexGrow: 1, + flexDirection: "column", + overflow: "hidden", + children: _jsxs(ScrollView, { + ref: scrollViewRef, + children: [ + _jsx(Box, { + marginBottom: 1, + flexShrink: 0, + children: _jsxs(Text, { + bold: true, + color: "green", + children: ["Duration: ", result.duration, "ms"], + }), + }), + _jsxs(Box, { + marginBottom: 1, + flexShrink: 0, + flexDirection: "column", + children: [ + _jsx(Text, { + bold: true, + color: "cyan", + children: "Input:", + }), + _jsx(Box, { + paddingLeft: 2, + children: _jsx(Text, { + dimColor: true, + children: JSON.stringify(result.input, null, 2), + }), + }), + ], + }), + result.error + ? _jsxs(Box, { + flexShrink: 0, + flexDirection: "column", + children: [ + _jsx(Text, { + bold: true, + color: "red", + children: "Error:", + }), + _jsx(Box, { + paddingLeft: 2, + children: _jsx(Text, { + color: "red", + children: result.error, + }), + }), + result.errorDetails && + _jsxs(_Fragment, { + children: [ + _jsx(Box, { + marginTop: 1, + children: _jsx(Text, { + bold: true, + color: "red", + dimColor: true, + children: "Error Details:", + }), + }), + _jsx(Box, { + paddingLeft: 2, + children: _jsx(Text, { + dimColor: true, + children: JSON.stringify( + result.errorDetails, + null, + 2, + ), + }), + }), + ], + }), + ], + }) + : _jsxs(Box, { + flexShrink: 0, + flexDirection: "column", + children: [ + _jsx(Text, { + bold: true, + color: "green", + children: "Output:", + }), + _jsx(Box, { + paddingLeft: 2, + children: _jsx(Text, { + dimColor: true, + children: JSON.stringify( + result.output, + null, + 2, + ), + }), + }), + ], + }), + ], + }), + }), + ], + }), + ], + }), + }); +} diff --git a/tui/build/src/components/ToolsTab.js b/tui/build/src/components/ToolsTab.js new file mode 100644 index 000000000..8568be9a9 --- /dev/null +++ b/tui/build/src/components/ToolsTab.js @@ -0,0 +1,259 @@ +import { + jsxs as _jsxs, + jsx as _jsx, + Fragment as _Fragment, +} from "react/jsx-runtime"; +import { useState, useEffect, useRef } from "react"; +import { Box, Text, useInput } from "ink"; +import { ScrollView } from "ink-scroll-view"; +export function ToolsTab({ + tools, + client, + width, + height, + onCountChange, + focusedPane = null, + onTestTool, + onViewDetails, + modalOpen = false, +}) { + const [selectedIndex, setSelectedIndex] = useState(0); + const [error, setError] = useState(null); + const scrollViewRef = useRef(null); + const listWidth = Math.floor(width * 0.4); + const detailWidth = width - listWidth; + // Handle arrow key navigation when focused + useInput( + (input, key) => { + // Handle Enter key to test tool (works from both list and details) + if (key.return && selectedTool && client && onTestTool) { + onTestTool(selectedTool); + return; + } + if (focusedPane === "list") { + // Navigate the list + if (key.upArrow && selectedIndex > 0) { + setSelectedIndex(selectedIndex - 1); + } else if (key.downArrow && selectedIndex < tools.length - 1) { + setSelectedIndex(selectedIndex + 1); + } + return; + } + if (focusedPane === "details") { + // Handle '+' key to view in full screen modal + if (input === "+" && selectedTool && onViewDetails) { + onViewDetails(selectedTool); + return; + } + // Scroll the details pane using ink-scroll-view + if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } + } + }, + { + isActive: + !modalOpen && (focusedPane === "list" || focusedPane === "details"), + }, + ); + // Helper to calculate content lines for a tool + const calculateToolContentLines = (tool) => { + let lines = 1; // Name + if (tool.description) lines += tool.description.split("\n").length + 1; + if (tool.inputSchema) { + const schemaStr = JSON.stringify(tool.inputSchema, null, 2); + lines += schemaStr.split("\n").length + 2; // +2 for "Input Schema:" label + } + return lines; + }; + // Reset scroll when selection changes + useEffect(() => { + scrollViewRef.current?.scrollTo(0); + }, [selectedIndex]); + // Reset selected index when tools array changes (different server) + useEffect(() => { + setSelectedIndex(0); + }, [tools]); + const selectedTool = tools[selectedIndex] || null; + return _jsxs(Box, { + flexDirection: "row", + width: width, + height: height, + children: [ + _jsxs(Box, { + width: listWidth, + height: height, + borderStyle: "single", + borderTop: false, + borderBottom: false, + borderLeft: false, + borderRight: true, + flexDirection: "column", + paddingX: 1, + children: [ + _jsx(Box, { + paddingY: 1, + children: _jsxs(Text, { + bold: true, + backgroundColor: focusedPane === "list" ? "yellow" : undefined, + children: ["Tools (", tools.length, ")"], + }), + }), + error + ? _jsx(Box, { + paddingY: 1, + children: _jsx(Text, { color: "red", children: error }), + }) + : tools.length === 0 + ? _jsx(Box, { + paddingY: 1, + children: _jsx(Text, { + dimColor: true, + children: "No tools available", + }), + }) + : _jsx(Box, { + flexDirection: "column", + flexGrow: 1, + children: tools.map((tool, index) => { + const isSelected = index === selectedIndex; + return _jsx( + Box, + { + paddingY: 0, + children: _jsxs(Text, { + children: [ + isSelected ? "▶ " : " ", + tool.name || `Tool ${index + 1}`, + ], + }), + }, + tool.name || index, + ); + }), + }), + ], + }), + _jsx(Box, { + width: detailWidth, + height: height, + paddingX: 1, + flexDirection: "column", + overflow: "hidden", + children: selectedTool + ? _jsxs(_Fragment, { + children: [ + _jsxs(Box, { + flexShrink: 0, + flexDirection: "row", + justifyContent: "space-between", + paddingTop: 1, + children: [ + _jsx(Text, { + bold: true, + backgroundColor: + focusedPane === "details" ? "yellow" : undefined, + ...(focusedPane === "details" ? {} : { color: "cyan" }), + children: selectedTool.name, + }), + client && + _jsx(Text, { + children: _jsx(Text, { + color: "cyan", + bold: true, + children: "[Enter to Test]", + }), + }), + ], + }), + _jsxs(ScrollView, { + ref: scrollViewRef, + height: height - 5, + children: [ + selectedTool.description && + _jsx(_Fragment, { + children: selectedTool.description + .split("\n") + .map((line, idx) => + _jsx( + Box, + { + marginTop: idx === 0 ? 1 : 0, + flexShrink: 0, + children: _jsx(Text, { + dimColor: true, + children: line, + }), + }, + `desc-${idx}`, + ), + ), + }), + selectedTool.inputSchema && + _jsxs(_Fragment, { + children: [ + _jsx(Box, { + marginTop: 1, + flexShrink: 0, + children: _jsx(Text, { + bold: true, + children: "Input Schema:", + }), + }), + JSON.stringify(selectedTool.inputSchema, null, 2) + .split("\n") + .map((line, idx) => + _jsx( + Box, + { + marginTop: idx === 0 ? 1 : 0, + paddingLeft: 2, + flexShrink: 0, + children: _jsx(Text, { + dimColor: true, + children: line, + }), + }, + `schema-${idx}`, + ), + ), + ], + }), + ], + }), + focusedPane === "details" && + _jsx(Box, { + flexShrink: 0, + height: 1, + justifyContent: "center", + backgroundColor: "gray", + children: _jsx(Text, { + bold: true, + color: "white", + children: "\u2191/\u2193 to scroll, + to zoom", + }), + }), + ], + }) + : _jsx(Box, { + paddingY: 1, + flexShrink: 0, + children: _jsx(Text, { + dimColor: true, + children: "Select a tool to view details", + }), + }), + }), + ], + }); +} diff --git a/tui/build/src/hooks/useMCPClient.js b/tui/build/src/hooks/useMCPClient.js new file mode 100644 index 000000000..ee3cf37c3 --- /dev/null +++ b/tui/build/src/hooks/useMCPClient.js @@ -0,0 +1,184 @@ +import { useState, useRef, useCallback } from "react"; +import { Client } from "@modelcontextprotocol/sdk/client/index.js"; +import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; +// Proxy Transport that intercepts all messages for logging/tracking +class LoggingProxyTransport { + baseTransport; + callbacks; + constructor(baseTransport, callbacks) { + this.baseTransport = baseTransport; + this.callbacks = callbacks; + } + async start() { + return this.baseTransport.start(); + } + async send(message, options) { + // Track outgoing requests (only requests have a method and are sent by the client) + if ("method" in message && "id" in message) { + this.callbacks.trackRequest?.(message); + } + return this.baseTransport.send(message, options); + } + async close() { + return this.baseTransport.close(); + } + get onclose() { + return this.baseTransport.onclose; + } + set onclose(handler) { + this.baseTransport.onclose = handler; + } + get onerror() { + return this.baseTransport.onerror; + } + set onerror(handler) { + this.baseTransport.onerror = handler; + } + get onmessage() { + return this.baseTransport.onmessage; + } + set onmessage(handler) { + if (handler) { + // Wrap the handler to track incoming messages + this.baseTransport.onmessage = (message, extra) => { + // Track incoming messages + if ( + "id" in message && + message.id !== null && + message.id !== undefined + ) { + // Check if it's a response (has 'result' or 'error' property) + if ("result" in message || "error" in message) { + this.callbacks.trackResponse?.(message); + } else if ("method" in message) { + // This is a request coming from the server + this.callbacks.trackRequest?.(message); + } + } else if ("method" in message) { + // Notification (no ID, has method) + this.callbacks.trackNotification?.(message); + } + // Call the original handler + handler(message, extra); + }; + } else { + this.baseTransport.onmessage = undefined; + } + } + get sessionId() { + return this.baseTransport.sessionId; + } + get setProtocolVersion() { + return this.baseTransport.setProtocolVersion; + } +} +// Export LoggingProxyTransport for use in other hooks +export { LoggingProxyTransport }; +export function useMCPClient(serverName, config, messageTracking) { + const [connection, setConnection] = useState(null); + const clientRef = useRef(null); + const messageTrackingRef = useRef(messageTracking); + const isMountedRef = useRef(true); + // Update ref when messageTracking changes + if (messageTracking) { + messageTrackingRef.current = messageTracking; + } + const connect = useCallback(async () => { + if (!serverName || !config) { + return null; + } + // If already connected, return existing client + if (clientRef.current && connection?.status === "connected") { + return clientRef.current; + } + setConnection({ + name: serverName, + config, + client: null, + status: "connecting", + error: null, + }); + try { + // Only support stdio in useMCPClient hook (legacy support) + // For full transport support, use the transport creation in App.tsx + if ( + "type" in config && + config.type !== "stdio" && + config.type !== undefined + ) { + throw new Error( + `Transport type ${config.type} not supported in useMCPClient hook`, + ); + } + const stdioConfig = config; + const baseTransport = new StdioClientTransport({ + command: stdioConfig.command, + args: stdioConfig.args || [], + env: stdioConfig.env, + }); + // Wrap with proxy transport if message tracking is enabled + const transport = messageTrackingRef.current + ? new LoggingProxyTransport(baseTransport, messageTrackingRef.current) + : baseTransport; + const client = new Client( + { + name: "mcp-inspect", + version: "1.0.0", + }, + { + capabilities: {}, + }, + ); + await client.connect(transport); + if (!isMountedRef.current) { + await client.close(); + return null; + } + clientRef.current = client; + setConnection({ + name: serverName, + config, + client, + status: "connected", + error: null, + }); + return client; + } catch (error) { + if (!isMountedRef.current) return null; + setConnection({ + name: serverName, + config, + client: null, + status: "error", + error: error instanceof Error ? error.message : "Unknown error", + }); + return null; + } + }, [serverName, config, connection?.status]); + const disconnect = useCallback(async () => { + if (clientRef.current) { + try { + await clientRef.current.close(); + } catch (error) { + // Ignore errors on close + } + clientRef.current = null; + } + if (serverName && config) { + setConnection({ + name: serverName, + config, + client: null, + status: "disconnected", + error: null, + }); + } else { + setConnection(null); + } + }, [serverName, config]); + return { + connection, + connect, + disconnect, + }; +} diff --git a/tui/build/src/hooks/useMessageTracking.js b/tui/build/src/hooks/useMessageTracking.js new file mode 100644 index 000000000..fb8a63776 --- /dev/null +++ b/tui/build/src/hooks/useMessageTracking.js @@ -0,0 +1,131 @@ +import { useState, useCallback, useRef } from "react"; +export function useMessageTracking() { + const [history, setHistory] = useState({}); + const pendingRequestsRef = useRef(new Map()); + const trackRequest = useCallback((serverName, message) => { + const entry = { + id: `${serverName}-${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "request", + message, + }; + if ("id" in message && message.id !== null && message.id !== undefined) { + pendingRequestsRef.current.set(message.id, { + timestamp: entry.timestamp, + serverName, + }); + } + setHistory((prev) => ({ + ...prev, + [serverName]: [...(prev[serverName] || []), entry], + })); + return entry.id; + }, []); + const trackResponse = useCallback((serverName, message) => { + if (!("id" in message) || message.id === undefined) { + // Response without an ID (shouldn't happen, but handle it) + return; + } + const entryId = message.id; + const pending = pendingRequestsRef.current.get(entryId); + if (pending && pending.serverName === serverName) { + pendingRequestsRef.current.delete(entryId); + const duration = Date.now() - pending.timestamp.getTime(); + setHistory((prev) => { + const serverHistory = prev[serverName] || []; + // Find the matching request by message ID + const requestIndex = serverHistory.findIndex( + (e) => + e.direction === "request" && + "id" in e.message && + e.message.id === entryId, + ); + if (requestIndex !== -1) { + // Update the request entry with the response + const updatedHistory = [...serverHistory]; + updatedHistory[requestIndex] = { + ...updatedHistory[requestIndex], + response: message, + duration, + }; + return { ...prev, [serverName]: updatedHistory }; + } + // If no matching request found, create a new entry + const newEntry = { + id: `${serverName}-${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "response", + message, + duration: 0, + }; + return { + ...prev, + [serverName]: [...serverHistory, newEntry], + }; + }); + } else { + // Response without a matching request (might be from a different server or orphaned) + setHistory((prev) => { + const serverHistory = prev[serverName] || []; + // Check if there's a matching request in the history + const requestIndex = serverHistory.findIndex( + (e) => + e.direction === "request" && + "id" in e.message && + e.message.id === entryId, + ); + if (requestIndex !== -1) { + // Update the request entry with the response + const updatedHistory = [...serverHistory]; + updatedHistory[requestIndex] = { + ...updatedHistory[requestIndex], + response: message, + }; + return { ...prev, [serverName]: updatedHistory }; + } + // Create a new entry for orphaned response + const newEntry = { + id: `${serverName}-${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "response", + message, + }; + return { + ...prev, + [serverName]: [...serverHistory, newEntry], + }; + }); + } + }, []); + const trackNotification = useCallback((serverName, message) => { + const entry = { + id: `${serverName}-${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "notification", + message, + }; + setHistory((prev) => ({ + ...prev, + [serverName]: [...(prev[serverName] || []), entry], + })); + }, []); + const clearHistory = useCallback((serverName) => { + if (serverName) { + setHistory((prev) => { + const updated = { ...prev }; + delete updated[serverName]; + return updated; + }); + } else { + setHistory({}); + pendingRequestsRef.current.clear(); + } + }, []); + return { + history, + trackRequest, + trackResponse, + trackNotification, + clearHistory, + }; +} diff --git a/tui/build/src/types.js b/tui/build/src/types.js new file mode 100644 index 000000000..cb0ff5c3b --- /dev/null +++ b/tui/build/src/types.js @@ -0,0 +1 @@ +export {}; diff --git a/tui/build/src/types/focus.js b/tui/build/src/types/focus.js new file mode 100644 index 000000000..cb0ff5c3b --- /dev/null +++ b/tui/build/src/types/focus.js @@ -0,0 +1 @@ +export {}; diff --git a/tui/build/src/types/messages.js b/tui/build/src/types/messages.js new file mode 100644 index 000000000..cb0ff5c3b --- /dev/null +++ b/tui/build/src/types/messages.js @@ -0,0 +1 @@ +export {}; diff --git a/tui/build/src/utils/client.js b/tui/build/src/utils/client.js new file mode 100644 index 000000000..fe3ef7a71 --- /dev/null +++ b/tui/build/src/utils/client.js @@ -0,0 +1,15 @@ +import { Client } from "@modelcontextprotocol/sdk/client/index.js"; +/** + * Creates a new MCP client with standard configuration + */ +export function createClient(transport) { + return new Client( + { + name: "mcp-inspect", + version: "1.0.5", + }, + { + capabilities: {}, + }, + ); +} diff --git a/tui/build/src/utils/config.js b/tui/build/src/utils/config.js new file mode 100644 index 000000000..64431932b --- /dev/null +++ b/tui/build/src/utils/config.js @@ -0,0 +1,24 @@ +import { readFileSync } from "fs"; +import { resolve } from "path"; +/** + * Loads and validates an MCP servers configuration file + * @param configPath - Path to the config file (relative to process.cwd() or absolute) + * @returns The parsed MCPConfig + * @throws Error if the file cannot be loaded, parsed, or is invalid + */ +export function loadMcpServersConfig(configPath) { + try { + const resolvedPath = resolve(process.cwd(), configPath); + const configContent = readFileSync(resolvedPath, "utf-8"); + const config = JSON.parse(configContent); + if (!config.mcpServers) { + throw new Error("Configuration file must contain an mcpServers element"); + } + return config; + } catch (error) { + if (error instanceof Error) { + throw new Error(`Error loading configuration: ${error.message}`); + } + throw new Error("Error loading configuration: Unknown error"); + } +} diff --git a/tui/build/src/utils/schemaToForm.js b/tui/build/src/utils/schemaToForm.js new file mode 100644 index 000000000..30397aa9a --- /dev/null +++ b/tui/build/src/utils/schemaToForm.js @@ -0,0 +1,104 @@ +/** + * Converts JSON Schema to ink-form format + */ +/** + * Converts a JSON Schema to ink-form structure + */ +export function schemaToForm(schema, toolName) { + const fields = []; + if (!schema || !schema.properties) { + return { + title: `Test Tool: ${toolName}`, + sections: [{ title: "Parameters", fields: [] }], + }; + } + const properties = schema.properties || {}; + const required = schema.required || []; + for (const [key, prop] of Object.entries(properties)) { + const property = prop; + const baseField = { + name: key, + label: property.title || key, + required: required.includes(key), + }; + let field; + // Handle enum -> select + if (property.enum) { + if (property.type === "array" && property.items?.enum) { + // For array of enums, we'll use select but handle it differently + // Note: ink-form doesn't have multiselect, so we'll use select + field = { + type: "select", + ...baseField, + options: property.items.enum.map((val) => ({ + label: String(val), + value: String(val), + })), + }; + } else { + // Single select + field = { + type: "select", + ...baseField, + options: property.enum.map((val) => ({ + label: String(val), + value: String(val), + })), + }; + } + } else { + // Map JSON Schema types to ink-form types + switch (property.type) { + case "string": + field = { + type: "string", + ...baseField, + }; + break; + case "integer": + field = { + type: "integer", + ...baseField, + ...(property.minimum !== undefined && { min: property.minimum }), + ...(property.maximum !== undefined && { max: property.maximum }), + }; + break; + case "number": + field = { + type: "float", + ...baseField, + ...(property.minimum !== undefined && { min: property.minimum }), + ...(property.maximum !== undefined && { max: property.maximum }), + }; + break; + case "boolean": + field = { + type: "boolean", + ...baseField, + }; + break; + default: + // Default to string for unknown types + field = { + type: "string", + ...baseField, + }; + } + } + // Set initial value from default + if (property.default !== undefined) { + field.initialValue = property.default; + } + fields.push(field); + } + const sections = [ + { + title: "Parameters", + fields, + }, + ]; + return { + title: `Test Tool: ${toolName}`, + sections, + }; +} diff --git a/tui/build/src/utils/transport.js b/tui/build/src/utils/transport.js new file mode 100644 index 000000000..01f57294e --- /dev/null +++ b/tui/build/src/utils/transport.js @@ -0,0 +1,70 @@ +import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; +import { SSEClientTransport } from "@modelcontextprotocol/sdk/client/sse.js"; +import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"; +export function getServerType(config) { + if ("type" in config) { + if (config.type === "sse") return "sse"; + if (config.type === "streamableHttp") return "streamableHttp"; + } + return "stdio"; +} +/** + * Creates the appropriate transport for an MCP server configuration + */ +export function createTransport(config, options = {}) { + const serverType = getServerType(config); + const { onStderr, pipeStderr = false } = options; + if (serverType === "stdio") { + const stdioConfig = config; + const transport = new StdioClientTransport({ + command: stdioConfig.command, + args: stdioConfig.args || [], + env: stdioConfig.env, + cwd: stdioConfig.cwd, + stderr: pipeStderr ? "pipe" : undefined, + }); + // Set up stderr listener if requested + if (pipeStderr && transport.stderr && onStderr) { + transport.stderr.on("data", (data) => { + const logEntry = data.toString().trim(); + if (logEntry) { + onStderr({ + timestamp: new Date(), + message: logEntry, + }); + } + }); + } + return { transport: transport }; + } else if (serverType === "sse") { + const sseConfig = config; + const url = new URL(sseConfig.url); + // Merge headers and requestInit + const eventSourceInit = { + ...sseConfig.eventSourceInit, + ...(sseConfig.headers && { headers: sseConfig.headers }), + }; + const requestInit = { + ...sseConfig.requestInit, + ...(sseConfig.headers && { headers: sseConfig.headers }), + }; + const transport = new SSEClientTransport(url, { + eventSourceInit, + requestInit, + }); + return { transport }; + } else { + // streamableHttp + const httpConfig = config; + const url = new URL(httpConfig.url); + // Merge headers and requestInit + const requestInit = { + ...httpConfig.requestInit, + ...(httpConfig.headers && { headers: httpConfig.headers }), + }; + const transport = new StreamableHTTPClientTransport(url, { + requestInit, + }); + return { transport }; + } +} diff --git a/tui/build/tui.js b/tui/build/tui.js new file mode 100644 index 000000000..a5b55f261 --- /dev/null +++ b/tui/build/tui.js @@ -0,0 +1,57 @@ +#!/usr/bin/env node +import { jsx as _jsx } from "react/jsx-runtime"; +import { render } from "ink"; +import App from "./src/App.js"; +export async function runTui() { + const args = process.argv.slice(2); + // TUI mode + const configFile = args[0]; + if (!configFile) { + console.error("Usage: mcp-inspector-tui "); + process.exit(1); + } + // Intercept stdout.write to filter out \x1b[3J (Erase Saved Lines) + // This prevents Ink's clearTerminal from clearing scrollback on macOS Terminal + // We can't access Ink's internal instance to prevent clearTerminal from being called, + // so we filter the escape code instead + const originalWrite = process.stdout.write.bind(process.stdout); + process.stdout.write = function (chunk, encoding, cb) { + if (typeof chunk === "string") { + // Only process if the escape code is present (minimize overhead) + if (chunk.includes("\x1b[3J")) { + chunk = chunk.replace(/\x1b\[3J/g, ""); + } + } else if (Buffer.isBuffer(chunk)) { + // Only process if the escape code is present (minimize overhead) + if (chunk.includes("\x1b[3J")) { + let str = chunk.toString("utf8"); + str = str.replace(/\x1b\[3J/g, ""); + chunk = Buffer.from(str, "utf8"); + } + } + return originalWrite(chunk, encoding, cb); + }; + // Enter alternate screen buffer before rendering + if (process.stdout.isTTY) { + process.stdout.write("\x1b[?1049h"); + } + // Render the app + const instance = render(_jsx(App, { configFile: configFile })); + // Wait for exit, then switch back from alternate screen + try { + await instance.waitUntilExit(); + // Unmount has completed - clearTerminal was patched to not include \x1b[3J + // Switch back from alternate screen + if (process.stdout.isTTY) { + process.stdout.write("\x1b[?1049l"); + } + process.exit(0); + } catch (error) { + if (process.stdout.isTTY) { + process.stdout.write("\x1b[?1049l"); + } + console.error("Error:", error); + process.exit(1); + } +} +runTui(); diff --git a/tui/package.json b/tui/package.json new file mode 100644 index 000000000..b70df9f65 --- /dev/null +++ b/tui/package.json @@ -0,0 +1,38 @@ +{ + "name": "@modelcontextprotocol/inspector-tui", + "version": "0.18.0", + "description": "Terminal User Interface (TUI) for the Model Context Protocol inspector", + "license": "MIT", + "author": { + "name": "Bob Dickinson (TeamSpark AI)", + "email": "bob@teamspark.ai" + }, + "homepage": "https://modelcontextprotocol.io", + "bugs": "https://github.com/modelcontextprotocol/inspector/issues", + "type": "module", + "main": "build/tui.js", + "bin": { + "mcp-inspector-tui": "./build/tui.js" + }, + "files": [ + "build" + ], + "scripts": { + "build": "tsc", + "dev": "tsx tui.tsx" + }, + "dependencies": { + "@modelcontextprotocol/sdk": "^1.25.2", + "fullscreen-ink": "^0.1.0", + "ink": "^6.6.0", + "ink-form": "^2.0.1", + "ink-scroll-view": "^0.3.5", + "react": "^19.2.3" + }, + "devDependencies": { + "@types/node": "^25.0.3", + "@types/react": "^19.2.7", + "tsx": "^4.21.0", + "typescript": "^5.9.3" + } +} diff --git a/tui/src/App.tsx b/tui/src/App.tsx new file mode 100644 index 000000000..3779ed8f6 --- /dev/null +++ b/tui/src/App.tsx @@ -0,0 +1,1121 @@ +import React, { useState, useMemo, useEffect, useCallback } from "react"; +import { Box, Text, useInput, useApp, type Key } from "ink"; +import { readFileSync } from "fs"; +import { fileURLToPath } from "url"; +import { dirname, join } from "path"; +import type { + MCPConfig, + ServerState, + MCPServerConfig, + StdioServerConfig, + SseServerConfig, + StreamableHttpServerConfig, +} from "./types.js"; +import { loadMcpServersConfig } from "./utils/config.js"; +import type { FocusArea } from "./types/focus.js"; +import { useMCPClient, LoggingProxyTransport } from "./hooks/useMCPClient.js"; +import { useMessageTracking } from "./hooks/useMessageTracking.js"; +import { Tabs, type TabType, tabs as tabList } from "./components/Tabs.js"; +import { InfoTab } from "./components/InfoTab.js"; +import { ResourcesTab } from "./components/ResourcesTab.js"; +import { PromptsTab } from "./components/PromptsTab.js"; +import { ToolsTab } from "./components/ToolsTab.js"; +import { NotificationsTab } from "./components/NotificationsTab.js"; +import { HistoryTab } from "./components/HistoryTab.js"; +import { ToolTestModal } from "./components/ToolTestModal.js"; +import { DetailsModal } from "./components/DetailsModal.js"; +import type { MessageEntry } from "./types/messages.js"; +import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; +import { createTransport, getServerType } from "./utils/transport.js"; +import { createClient } from "./utils/client.js"; + +const __filename = fileURLToPath(import.meta.url); +const __dirname = dirname(__filename); + +// Read package.json to get project info +// Strategy: Try multiple paths to handle both local dev and global install +// - Local dev (tsx): __dirname = src/, package.json is one level up +// - Global install: __dirname = dist/src/, package.json is two levels up +let packagePath: string; +let packageJson: { name: string; description: string; version: string }; + +try { + // Try two levels up first (global install case) + packagePath = join(__dirname, "..", "..", "package.json"); + packageJson = JSON.parse(readFileSync(packagePath, "utf-8")) as { + name: string; + description: string; + version: string; + }; +} catch { + // Fall back to one level up (local dev case) + packagePath = join(__dirname, "..", "package.json"); + packageJson = JSON.parse(readFileSync(packagePath, "utf-8")) as { + name: string; + description: string; + version: string; + }; +} + +interface AppProps { + configFile: string; +} + +function App({ configFile }: AppProps) { + const { exit } = useApp(); + + const [selectedServer, setSelectedServer] = useState(null); + const [activeTab, setActiveTab] = useState("info"); + const [focus, setFocus] = useState("serverList"); + const [tabCounts, setTabCounts] = useState<{ + info?: number; + resources?: number; + prompts?: number; + tools?: number; + messages?: number; + logging?: number; + }>({}); + + // Tool test modal state + const [toolTestModal, setToolTestModal] = useState<{ + tool: any; + client: Client | null; + } | null>(null); + + // Details modal state + const [detailsModal, setDetailsModal] = useState<{ + title: string; + content: React.ReactNode; + } | null>(null); + + // Server state management - store state for all servers + const [serverStates, setServerStates] = useState>( + {}, + ); + const [serverClients, setServerClients] = useState< + Record + >({}); + + // Message tracking + const { + history: messageHistory, + trackRequest, + trackResponse, + trackNotification, + clearHistory, + } = useMessageTracking(); + const [dimensions, setDimensions] = useState({ + width: process.stdout.columns || 80, + height: process.stdout.rows || 24, + }); + + useEffect(() => { + const updateDimensions = () => { + setDimensions({ + width: process.stdout.columns || 80, + height: process.stdout.rows || 24, + }); + }; + + process.stdout.on("resize", updateDimensions); + return () => { + process.stdout.off("resize", updateDimensions); + }; + }, []); + + // Parse MCP configuration + const mcpConfig = useMemo(() => { + try { + return loadMcpServersConfig(configFile); + } catch (error) { + if (error instanceof Error) { + console.error(error.message); + } else { + console.error("Error loading configuration: Unknown error"); + } + process.exit(1); + } + }, [configFile]); + + const serverNames = Object.keys(mcpConfig.mcpServers); + const selectedServerConfig = selectedServer + ? mcpConfig.mcpServers[selectedServer] + : null; + + // Preselect the first server on mount + useEffect(() => { + if (serverNames.length > 0 && selectedServer === null) { + setSelectedServer(serverNames[0]); + } + // eslint-disable-next-line react-hooks/exhaustive-deps + }, []); + + // Initialize server states for all configured servers on mount + useEffect(() => { + const initialStates: Record = {}; + for (const serverName of serverNames) { + if (!(serverName in serverStates)) { + initialStates[serverName] = { + status: "disconnected", + error: null, + capabilities: {}, + serverInfo: undefined, + instructions: undefined, + resources: [], + prompts: [], + tools: [], + stderrLogs: [], + }; + } + } + if (Object.keys(initialStates).length > 0) { + setServerStates((prev) => ({ ...prev, ...initialStates })); + } + // eslint-disable-next-line react-hooks/exhaustive-deps + }, []); + + // Memoize message tracking callbacks to prevent unnecessary re-renders + const messageTracking = useMemo(() => { + if (!selectedServer) return undefined; + return { + trackRequest: (msg: any) => trackRequest(selectedServer, msg), + trackResponse: (msg: any) => trackResponse(selectedServer, msg), + trackNotification: (msg: any) => trackNotification(selectedServer, msg), + }; + }, [selectedServer, trackRequest, trackResponse, trackNotification]); + + // Get client for selected server (for connection management) + const { + connection, + connect: connectClient, + disconnect: disconnectClient, + } = useMCPClient(selectedServer, selectedServerConfig, messageTracking); + + // Helper function to create the appropriate transport with stderr logging + const createTransportWithLogging = useCallback( + (config: MCPServerConfig, serverName: string) => { + return createTransport(config, { + pipeStderr: true, + onStderr: (entry) => { + setServerStates((prev) => { + const existingState = prev[serverName]; + if (!existingState) { + // Initialize state if it doesn't exist yet + return { + ...prev, + [serverName]: { + status: "connecting" as const, + error: null, + capabilities: {}, + serverInfo: undefined, + instructions: undefined, + resources: [], + prompts: [], + tools: [], + stderrLogs: [entry], + }, + }; + } + + return { + ...prev, + [serverName]: { + ...existingState, + stderrLogs: [...(existingState.stderrLogs || []), entry].slice( + -1000, + ), // Keep last 1000 log entries + }, + }; + }); + }, + }); + }, + [], + ); + + // Connect handler - connects, gets capabilities, and queries resources/prompts/tools + const handleConnect = useCallback(async () => { + if (!selectedServer || !selectedServerConfig) return; + + // Capture server name immediately to avoid closure issues + const serverName = selectedServer; + const serverConfig = selectedServerConfig; + + // Clear all data when connecting/reconnecting to start fresh + clearHistory(serverName); + + // Clear stderr logs BEFORE connecting + setServerStates((prev) => ({ + ...prev, + [serverName]: { + ...(prev[serverName] || { + status: "disconnected" as const, + error: null, + capabilities: {}, + resources: [], + prompts: [], + tools: [], + }), + status: "connecting" as const, + stderrLogs: [], // Clear logs before connecting + }, + })); + + // Create the appropriate transport with stderr logging + const { transport: baseTransport } = createTransportWithLogging( + serverConfig, + serverName, + ); + + // Wrap with proxy transport if message tracking is enabled + const transport = messageTracking + ? new LoggingProxyTransport(baseTransport, messageTracking) + : baseTransport; + + const client = createClient(transport); + + try { + await client.connect(transport); + + // Store client immediately + setServerClients((prev) => ({ ...prev, [serverName]: client })); + + // Get server capabilities + const serverCapabilities = client.getServerCapabilities() || {}; + const capabilities = { + resources: !!serverCapabilities.resources, + prompts: !!serverCapabilities.prompts, + tools: !!serverCapabilities.tools, + }; + + // Get server info (name, version) and instructions + const serverVersion = client.getServerVersion(); + const serverInfo = serverVersion + ? { + name: serverVersion.name, + version: serverVersion.version, + } + : undefined; + const instructions = client.getInstructions(); + + // Query resources, prompts, and tools based on capabilities + let resources: any[] = []; + let prompts: any[] = []; + let tools: any[] = []; + + if (capabilities.resources) { + try { + const result = await client.listResources(); + resources = result.resources || []; + } catch (err) { + // Ignore errors, just leave empty + } + } + + if (capabilities.prompts) { + try { + const result = await client.listPrompts(); + prompts = result.prompts || []; + } catch (err) { + // Ignore errors, just leave empty + } + } + + if (capabilities.tools) { + try { + const result = await client.listTools(); + tools = result.tools || []; + } catch (err) { + // Ignore errors, just leave empty + } + } + + // Update server state - use captured serverName to ensure we update the correct server + // Preserve stderrLogs that were captured during connection (after we cleared them before connecting) + setServerStates((prev) => ({ + ...prev, + [serverName]: { + status: "connected" as const, + error: null, + capabilities, + serverInfo, + instructions, + resources, + prompts, + tools, + stderrLogs: prev[serverName]?.stderrLogs || [], // Preserve logs captured during connection + }, + })); + } catch (error) { + // Make sure we clean up the client on error + try { + await client.close(); + } catch (closeErr) { + // Ignore close errors + } + + setServerStates((prev) => ({ + ...prev, + [serverName]: { + ...(prev[serverName] || { + status: "disconnected" as const, + error: null, + capabilities: {}, + resources: [], + prompts: [], + tools: [], + }), + status: "error", + error: error instanceof Error ? error.message : "Unknown error", + }, + })); + } + }, [selectedServer, selectedServerConfig, messageTracking]); + + // Disconnect handler + const handleDisconnect = useCallback(async () => { + if (!selectedServer) return; + + await disconnectClient(); + + setServerClients((prev) => { + const newClients = { ...prev }; + delete newClients[selectedServer]; + return newClients; + }); + + // Preserve all data when disconnecting - only change status + setServerStates((prev) => ({ + ...prev, + [selectedServer]: { + ...prev[selectedServer], + status: "disconnected", + error: null, + // Keep all existing data: capabilities, serverInfo, instructions, resources, prompts, tools, stderrLogs + }, + })); + + // Update tab counts based on preserved data + const preservedState = serverStates[selectedServer]; + if (preservedState) { + setTabCounts((prev) => ({ + ...prev, + resources: preservedState.resources?.length || 0, + prompts: preservedState.prompts?.length || 0, + tools: preservedState.tools?.length || 0, + messages: messageHistory[selectedServer]?.length || 0, + logging: preservedState.stderrLogs?.length || 0, + })); + } + }, [selectedServer, disconnectClient, serverStates, messageHistory]); + + const currentServerMessages = useMemo( + () => (selectedServer ? messageHistory[selectedServer] || [] : []), + [selectedServer, messageHistory], + ); + + const currentServerState = useMemo( + () => (selectedServer ? serverStates[selectedServer] || null : null), + [selectedServer, serverStates], + ); + + const currentServerClient = useMemo( + () => (selectedServer ? serverClients[selectedServer] || null : null), + [selectedServer, serverClients], + ); + + // Helper functions to render details modal content + const renderResourceDetails = (resource: any) => ( + <> + {resource.description && ( + <> + {resource.description.split("\n").map((line: string, idx: number) => ( + + {line} + + ))} + + )} + {resource.uri && ( + + URI: + + {resource.uri} + + + )} + {resource.mimeType && ( + + MIME Type: + + {resource.mimeType} + + + )} + + Full JSON: + + {JSON.stringify(resource, null, 2)} + + + + ); + + const renderPromptDetails = (prompt: any) => ( + <> + {prompt.description && ( + <> + {prompt.description.split("\n").map((line: string, idx: number) => ( + + {line} + + ))} + + )} + {prompt.arguments && prompt.arguments.length > 0 && ( + <> + + Arguments: + + {prompt.arguments.map((arg: any, idx: number) => ( + + + - {arg.name}: {arg.description || arg.type || "string"} + + + ))} + + )} + + Full JSON: + + {JSON.stringify(prompt, null, 2)} + + + + ); + + const renderToolDetails = (tool: any) => ( + <> + {tool.description && ( + <> + {tool.description.split("\n").map((line: string, idx: number) => ( + + {line} + + ))} + + )} + {tool.inputSchema && ( + + Input Schema: + + {JSON.stringify(tool.inputSchema, null, 2)} + + + )} + + Full JSON: + + {JSON.stringify(tool, null, 2)} + + + + ); + + const renderMessageDetails = (message: MessageEntry) => ( + <> + + Direction: {message.direction} + + {message.duration !== undefined && ( + + Duration: {message.duration}ms + + )} + {message.direction === "request" ? ( + <> + + Request: + + {JSON.stringify(message.message, null, 2)} + + + {message.response && ( + + Response: + + + {JSON.stringify(message.response, null, 2)} + + + + )} + + ) : ( + + + {message.direction === "response" ? "Response:" : "Notification:"} + + + {JSON.stringify(message.message, null, 2)} + + + )} + + ); + + // Update tab counts when selected server changes + useEffect(() => { + if (!selectedServer) { + return; + } + + const serverState = serverStates[selectedServer]; + if (serverState?.status === "connected") { + setTabCounts({ + resources: serverState.resources?.length || 0, + prompts: serverState.prompts?.length || 0, + tools: serverState.tools?.length || 0, + messages: messageHistory[selectedServer]?.length || 0, + }); + } else if (serverState?.status !== "connecting") { + // Reset counts for disconnected or error states + setTabCounts({ + resources: 0, + prompts: 0, + tools: 0, + messages: messageHistory[selectedServer]?.length || 0, + }); + } + }, [selectedServer, serverStates, messageHistory]); + + // Keep focus state consistent when switching tabs + useEffect(() => { + if (activeTab === "messages") { + if (focus === "tabContentList" || focus === "tabContentDetails") { + setFocus("messagesList"); + } + } else { + if (focus === "messagesList" || focus === "messagesDetail") { + setFocus("tabContentList"); + } + } + }, [activeTab]); // intentionally not depending on focus to avoid loops + + // Switch away from logging tab if server is not stdio + useEffect(() => { + if (activeTab === "logging" && selectedServerConfig) { + const serverType = getServerType(selectedServerConfig); + if (serverType !== "stdio") { + setActiveTab("info"); + } + } + }, [selectedServerConfig, activeTab, getServerType]); + + useInput((input: string, key: Key) => { + // Don't process input when modal is open + if (toolTestModal || detailsModal) { + return; + } + + if (key.ctrl && input === "c") { + exit(); + } + + // Exit accelerators + if (key.escape) { + exit(); + } + + // Tab switching with accelerator keys (first character of tab name) + const tabAccelerators: Record = Object.fromEntries( + tabList.map( + (tab: { id: TabType; label: string; accelerator: string }) => [ + tab.accelerator, + tab.id, + ], + ), + ); + if (tabAccelerators[input.toLowerCase()]) { + setActiveTab(tabAccelerators[input.toLowerCase()]); + setFocus("tabs"); + } else if (key.tab && !key.shift) { + // Flat focus order: servers -> tabs -> list -> details -> wrap to servers + const focusOrder: FocusArea[] = + activeTab === "messages" + ? ["serverList", "tabs", "messagesList", "messagesDetail"] + : ["serverList", "tabs", "tabContentList", "tabContentDetails"]; + const currentIndex = focusOrder.indexOf(focus); + const nextIndex = (currentIndex + 1) % focusOrder.length; + setFocus(focusOrder[nextIndex]); + } else if (key.tab && key.shift) { + // Reverse order: servers <- tabs <- list <- details <- wrap to servers + const focusOrder: FocusArea[] = + activeTab === "messages" + ? ["serverList", "tabs", "messagesList", "messagesDetail"] + : ["serverList", "tabs", "tabContentList", "tabContentDetails"]; + const currentIndex = focusOrder.indexOf(focus); + const prevIndex = + currentIndex > 0 ? currentIndex - 1 : focusOrder.length - 1; + setFocus(focusOrder[prevIndex]); + } else if (key.upArrow || key.downArrow) { + // Arrow keys only work in the focused pane + if (focus === "serverList") { + // Arrow key navigation for server list + if (key.upArrow) { + if (selectedServer === null) { + setSelectedServer(serverNames[serverNames.length - 1] || null); + } else { + const currentIndex = serverNames.indexOf(selectedServer); + const newIndex = + currentIndex > 0 ? currentIndex - 1 : serverNames.length - 1; + setSelectedServer(serverNames[newIndex] || null); + } + } else if (key.downArrow) { + if (selectedServer === null) { + setSelectedServer(serverNames[0] || null); + } else { + const currentIndex = serverNames.indexOf(selectedServer); + const newIndex = + currentIndex < serverNames.length - 1 ? currentIndex + 1 : 0; + setSelectedServer(serverNames[newIndex] || null); + } + } + return; // Handled, don't let other handlers process + } + // If focus is on tabs, tabContentList, tabContentDetails, messagesList, or messagesDetail, + // arrow keys will be handled by those components - don't do anything here + } else if (focus === "tabs" && (key.leftArrow || key.rightArrow)) { + // Left/Right arrows switch tabs when tabs are focused + const tabs: TabType[] = [ + "info", + "resources", + "prompts", + "tools", + "messages", + "logging", + ]; + const currentIndex = tabs.indexOf(activeTab); + if (key.leftArrow) { + const newIndex = currentIndex > 0 ? currentIndex - 1 : tabs.length - 1; + setActiveTab(tabs[newIndex]); + } else if (key.rightArrow) { + const newIndex = currentIndex < tabs.length - 1 ? currentIndex + 1 : 0; + setActiveTab(tabs[newIndex]); + } + } + + // Accelerator keys for connect/disconnect (work from anywhere) + if (selectedServer) { + const serverState = serverStates[selectedServer]; + if ( + input.toLowerCase() === "c" && + (serverState?.status === "disconnected" || + serverState?.status === "error") + ) { + handleConnect(); + } else if ( + input.toLowerCase() === "d" && + (serverState?.status === "connected" || + serverState?.status === "connecting") + ) { + handleDisconnect(); + } + } + }); + + // Calculate layout dimensions + const headerHeight = 1; + const tabsHeight = 1; + // Server details will be flexible - calculate remaining space for content + const availableHeight = dimensions.height - headerHeight - tabsHeight; + // Reserve space for server details (will grow as needed, but we'll use flexGrow) + const serverDetailsMinHeight = 3; + const contentHeight = availableHeight - serverDetailsMinHeight; + const serverListWidth = Math.floor(dimensions.width * 0.3); + const contentWidth = dimensions.width - serverListWidth; + + const getStatusColor = (status: string) => { + switch (status) { + case "connected": + return "green"; + case "connecting": + return "yellow"; + case "error": + return "red"; + default: + return "gray"; + } + }; + + const getStatusSymbol = (status: string) => { + switch (status) { + case "connected": + return "●"; + case "connecting": + return "◐"; + case "error": + return "✗"; + default: + return "○"; + } + }; + + return ( + + {/* Header row across the top */} + + + + {packageJson.name} + + - {packageJson.description} + + v{packageJson.version} + + + {/* Main content area */} + + {/* Left column - Server list */} + + + + MCP Servers + + + + {serverNames.map((serverName) => { + const isSelected = selectedServer === serverName; + return ( + + + {isSelected ? "▶ " : " "} + {serverName} + + + ); + })} + + + {/* Fixed footer */} + + + ESC to exit + + + + + {/* Right column - Server details, Tabs and content */} + + {/* Server Details - Flexible height */} + + + + + {selectedServer} + + + {currentServerState && ( + <> + + {getStatusSymbol(currentServerState.status)}{" "} + {currentServerState.status} + + + {(currentServerState?.status === "disconnected" || + currentServerState?.status === "error") && ( + + [Connect] + + )} + {(currentServerState?.status === "connected" || + currentServerState?.status === "connecting") && ( + + [Disconnect] + + )} + + )} + + + + + + {/* Tabs */} + + + {/* Tab Content */} + + {activeTab === "info" && ( + + )} + {currentServerState?.status === "connected" && + currentServerClient ? ( + <> + {activeTab === "resources" && ( + + setTabCounts((prev) => ({ ...prev, resources: count })) + } + focusedPane={ + focus === "tabContentDetails" + ? "details" + : focus === "tabContentList" + ? "list" + : null + } + onViewDetails={(resource) => + setDetailsModal({ + title: `Resource: ${resource.name || resource.uri || "Unknown"}`, + content: renderResourceDetails(resource), + }) + } + modalOpen={!!(toolTestModal || detailsModal)} + /> + )} + {activeTab === "prompts" && ( + + setTabCounts((prev) => ({ ...prev, prompts: count })) + } + focusedPane={ + focus === "tabContentDetails" + ? "details" + : focus === "tabContentList" + ? "list" + : null + } + onViewDetails={(prompt) => + setDetailsModal({ + title: `Prompt: ${prompt.name || "Unknown"}`, + content: renderPromptDetails(prompt), + }) + } + modalOpen={!!(toolTestModal || detailsModal)} + /> + )} + {activeTab === "tools" && ( + + setTabCounts((prev) => ({ ...prev, tools: count })) + } + focusedPane={ + focus === "tabContentDetails" + ? "details" + : focus === "tabContentList" + ? "list" + : null + } + onTestTool={(tool) => + setToolTestModal({ tool, client: currentServerClient }) + } + onViewDetails={(tool) => + setDetailsModal({ + title: `Tool: ${tool.name || "Unknown"}`, + content: renderToolDetails(tool), + }) + } + modalOpen={!!(toolTestModal || detailsModal)} + /> + )} + {activeTab === "messages" && ( + + setTabCounts((prev) => ({ ...prev, messages: count })) + } + focusedPane={ + focus === "messagesDetail" + ? "details" + : focus === "messagesList" + ? "messages" + : null + } + modalOpen={!!(toolTestModal || detailsModal)} + onViewDetails={(message) => { + const label = + message.direction === "request" && + "method" in message.message + ? message.message.method + : message.direction === "response" + ? "Response" + : message.direction === "notification" && + "method" in message.message + ? message.message.method + : "Message"; + setDetailsModal({ + title: `Message: ${label}`, + content: renderMessageDetails(message), + }); + }} + /> + )} + {activeTab === "logging" && ( + + setTabCounts((prev) => ({ ...prev, logging: count })) + } + focused={ + focus === "tabContentList" || + focus === "tabContentDetails" + } + /> + )} + + ) : activeTab !== "info" && selectedServer ? ( + + Server not connected + + ) : null} + + + + + {/* Tool Test Modal - rendered at App level for full screen overlay */} + {toolTestModal && ( + setToolTestModal(null)} + /> + )} + + {/* Details Modal - rendered at App level for full screen overlay */} + {detailsModal && ( + setDetailsModal(null)} + /> + )} + + ); +} + +export default App; diff --git a/tui/src/components/DetailsModal.tsx b/tui/src/components/DetailsModal.tsx new file mode 100644 index 000000000..e01b555d3 --- /dev/null +++ b/tui/src/components/DetailsModal.tsx @@ -0,0 +1,102 @@ +import React, { useRef } from "react"; +import { Box, Text, useInput, type Key } from "ink"; +import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; + +interface DetailsModalProps { + title: string; + content: React.ReactNode; + width: number; + height: number; + onClose: () => void; +} + +export function DetailsModal({ + title, + content, + width, + height, + onClose, +}: DetailsModalProps) { + const scrollViewRef = useRef(null); + + // Use full terminal dimensions + const [terminalDimensions, setTerminalDimensions] = React.useState({ + width: process.stdout.columns || width, + height: process.stdout.rows || height, + }); + + React.useEffect(() => { + const updateDimensions = () => { + setTerminalDimensions({ + width: process.stdout.columns || width, + height: process.stdout.rows || height, + }); + }; + process.stdout.on("resize", updateDimensions); + updateDimensions(); + return () => { + process.stdout.off("resize", updateDimensions); + }; + }, [width, height]); + + // Handle escape to close and scrolling + useInput( + (input: string, key: Key) => { + if (key.escape) { + onClose(); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.pageDown) { + const viewportHeight = scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } else if (key.pageUp) { + const viewportHeight = scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } + }, + { isActive: true }, + ); + + // Calculate modal dimensions - use almost full screen + const modalWidth = terminalDimensions.width - 2; + const modalHeight = terminalDimensions.height - 2; + + return ( + + {/* Modal Content */} + + {/* Header */} + + + {title} + + + (Press ESC to close) + + + {/* Content Area */} + + {content} + + + + ); +} diff --git a/tui/src/components/HistoryTab.tsx b/tui/src/components/HistoryTab.tsx new file mode 100644 index 000000000..99a83f4a8 --- /dev/null +++ b/tui/src/components/HistoryTab.tsx @@ -0,0 +1,356 @@ +import React, { useState, useMemo, useEffect, useRef } from "react"; +import { Box, Text, useInput, type Key } from "ink"; +import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; +import type { MessageEntry } from "../types/messages.js"; + +interface HistoryTabProps { + serverName: string | null; + messages: MessageEntry[]; + width: number; + height: number; + onCountChange?: (count: number) => void; + focusedPane?: "messages" | "details" | null; + onViewDetails?: (message: MessageEntry) => void; + modalOpen?: boolean; +} + +export function HistoryTab({ + serverName, + messages, + width, + height, + onCountChange, + focusedPane = null, + onViewDetails, + modalOpen = false, +}: HistoryTabProps) { + const [selectedIndex, setSelectedIndex] = useState(0); + const [leftScrollOffset, setLeftScrollOffset] = useState(0); + const scrollViewRef = useRef(null); + + // Calculate visible area for left pane (accounting for header) + const leftPaneHeight = height - 2; // Subtract header space + const visibleMessages = messages.slice( + leftScrollOffset, + leftScrollOffset + leftPaneHeight, + ); + + const selectedMessage = messages[selectedIndex] || null; + + // Handle arrow key navigation and scrolling when focused + useInput( + (input: string, key: Key) => { + if (focusedPane === "messages") { + if (key.upArrow) { + if (selectedIndex > 0) { + const newIndex = selectedIndex - 1; + setSelectedIndex(newIndex); + // Auto-scroll if selection goes above visible area + if (newIndex < leftScrollOffset) { + setLeftScrollOffset(newIndex); + } + } + } else if (key.downArrow) { + if (selectedIndex < messages.length - 1) { + const newIndex = selectedIndex + 1; + setSelectedIndex(newIndex); + // Auto-scroll if selection goes below visible area + if (newIndex >= leftScrollOffset + leftPaneHeight) { + setLeftScrollOffset(Math.max(0, newIndex - leftPaneHeight + 1)); + } + } + } else if (key.pageUp) { + setLeftScrollOffset(Math.max(0, leftScrollOffset - leftPaneHeight)); + setSelectedIndex(Math.max(0, selectedIndex - leftPaneHeight)); + } else if (key.pageDown) { + const maxScroll = Math.max(0, messages.length - leftPaneHeight); + setLeftScrollOffset( + Math.min(maxScroll, leftScrollOffset + leftPaneHeight), + ); + setSelectedIndex( + Math.min(messages.length - 1, selectedIndex + leftPaneHeight), + ); + } + return; + } + + // details scrolling (only when details pane is focused) + if (focusedPane === "details") { + // Handle '+' key to view in full screen modal + if (input === "+" && selectedMessage && onViewDetails) { + onViewDetails(selectedMessage); + return; + } + + if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } + } + }, + { isActive: !modalOpen && focusedPane !== undefined }, + ); + + // Update count when messages change + React.useEffect(() => { + onCountChange?.(messages.length); + // eslint-disable-next-line react-hooks/exhaustive-deps + }, [messages.length]); + + // Reset selection when messages change + useEffect(() => { + if (selectedIndex >= messages.length) { + setSelectedIndex(Math.max(0, messages.length - 1)); + } + }, [messages.length, selectedIndex]); + + // Reset scroll when message selection changes + useEffect(() => { + scrollViewRef.current?.scrollTo(0); + }, [selectedIndex]); + + const listWidth = Math.floor(width * 0.4); + const detailWidth = width - listWidth; + + return ( + + {/* Left column - Messages list */} + + + + Messages ({messages.length}) + + + + {/* Messages list */} + {messages.length === 0 ? ( + + No messages + + ) : ( + + {visibleMessages.map((msg, visibleIndex) => { + const actualIndex = leftScrollOffset + visibleIndex; + const isSelected = actualIndex === selectedIndex; + let label: string; + if (msg.direction === "request" && "method" in msg.message) { + label = msg.message.method; + } else if (msg.direction === "response") { + if ("result" in msg.message) { + label = "Response (result)"; + } else if ("error" in msg.message) { + label = `Response (error: ${msg.message.error.code})`; + } else { + label = "Response"; + } + } else if ( + msg.direction === "notification" && + "method" in msg.message + ) { + label = msg.message.method; + } else { + label = "Unknown"; + } + const direction = + msg.direction === "request" + ? "→" + : msg.direction === "response" + ? "←" + : "•"; + const hasResponse = msg.response !== undefined; + + return ( + + + {isSelected ? "▶ " : " "} + {direction} {label} + {hasResponse + ? " ✓" + : msg.direction === "request" + ? " ..." + : ""} + + + ); + })} + + )} + + + {/* Right column - Message details */} + + {selectedMessage ? ( + <> + {/* Fixed method caption only */} + + + {selectedMessage.direction === "request" && + "method" in selectedMessage.message + ? selectedMessage.message.method + : selectedMessage.direction === "response" + ? "Response" + : selectedMessage.direction === "notification" && + "method" in selectedMessage.message + ? selectedMessage.message.method + : "Message"} + + + {selectedMessage.timestamp.toLocaleTimeString()} + + + + {/* Scrollable content area */} + + {/* Metadata */} + + Direction: {selectedMessage.direction} + {selectedMessage.duration !== undefined && ( + + Duration: {selectedMessage.duration}ms + + )} + + + {selectedMessage.direction === "request" ? ( + <> + {/* Request label */} + + Request: + + + {/* Request content */} + {JSON.stringify(selectedMessage.message, null, 2) + .split("\n") + .map((line: string, idx: number) => ( + + {line} + + ))} + + {/* Response section */} + {selectedMessage.response ? ( + <> + + Response: + + {JSON.stringify(selectedMessage.response, null, 2) + .split("\n") + .map((line: string, idx: number) => ( + + {line} + + ))} + + ) : ( + + + Waiting for response... + + + )} + + ) : ( + <> + {/* Response or notification label */} + + + {selectedMessage.direction === "response" + ? "Response:" + : "Notification:"} + + + + {/* Message content */} + {JSON.stringify(selectedMessage.message, null, 2) + .split("\n") + .map((line: string, idx: number) => ( + + {line} + + ))} + + )} + + + {/* Fixed footer - only show when details pane is focused */} + {focusedPane === "details" && ( + + + ↑/↓ to scroll, + to zoom + + + )} + + ) : ( + + Select a message to view details + + )} + + + ); +} diff --git a/tui/src/components/InfoTab.tsx b/tui/src/components/InfoTab.tsx new file mode 100644 index 000000000..9745cef91 --- /dev/null +++ b/tui/src/components/InfoTab.tsx @@ -0,0 +1,231 @@ +import React, { useRef } from "react"; +import { Box, Text, useInput, type Key } from "ink"; +import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; +import type { MCPServerConfig } from "../types.js"; +import type { ServerState } from "../types.js"; + +interface InfoTabProps { + serverName: string | null; + serverConfig: MCPServerConfig | null; + serverState: ServerState | null; + width: number; + height: number; + focused?: boolean; +} + +export function InfoTab({ + serverName, + serverConfig, + serverState, + width, + height, + focused = false, +}: InfoTabProps) { + const scrollViewRef = useRef(null); + + // Handle keyboard input for scrolling + useInput( + (input: string, key: Key) => { + if (focused) { + if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } + } + }, + { isActive: focused }, + ); + + return ( + + + + Info + + + + {serverName ? ( + <> + {/* Scrollable content area - takes remaining space */} + + + {/* Server Configuration */} + + Server Configuration + + {serverConfig ? ( + + {serverConfig.type === undefined || + serverConfig.type === "stdio" ? ( + <> + Type: stdio + + Command: {(serverConfig as any).command} + + {(serverConfig as any).args && + (serverConfig as any).args.length > 0 && ( + + Args: + {(serverConfig as any).args.map( + (arg: string, idx: number) => ( + + {arg} + + ), + )} + + )} + {(serverConfig as any).env && + Object.keys((serverConfig as any).env).length > 0 && ( + + + Env:{" "} + {Object.entries((serverConfig as any).env) + .map(([k, v]) => `${k}=${v}`) + .join(", ")} + + + )} + {(serverConfig as any).cwd && ( + + CWD: {(serverConfig as any).cwd} + + )} + + ) : serverConfig.type === "sse" ? ( + <> + Type: sse + URL: {(serverConfig as any).url} + {(serverConfig as any).headers && + Object.keys((serverConfig as any).headers).length > + 0 && ( + + + Headers:{" "} + {Object.entries((serverConfig as any).headers) + .map(([k, v]) => `${k}=${v}`) + .join(", ")} + + + )} + + ) : ( + <> + Type: streamableHttp + URL: {(serverConfig as any).url} + {(serverConfig as any).headers && + Object.keys((serverConfig as any).headers).length > + 0 && ( + + + Headers:{" "} + {Object.entries((serverConfig as any).headers) + .map(([k, v]) => `${k}=${v}`) + .join(", ")} + + + )} + + )} + + ) : ( + + No configuration available + + )} + + {/* Server Info */} + {serverState && + serverState.status === "connected" && + serverState.serverInfo && ( + <> + + Server Information + + + {serverState.serverInfo.name && ( + + Name: {serverState.serverInfo.name} + + )} + {serverState.serverInfo.version && ( + + + Version: {serverState.serverInfo.version} + + + )} + {serverState.instructions && ( + + Instructions: + + {serverState.instructions} + + + )} + + + )} + + {serverState && serverState.status === "error" && ( + + + Error + + {serverState.error && ( + + {serverState.error} + + )} + + )} + + {serverState && serverState.status === "disconnected" && ( + + Server not connected + + )} + + + + {/* Fixed keyboard help footer at bottom - only show when focused */} + {focused && ( + + + ↑/↓ to scroll, + to zoom + + + )} + + ) : null} + + ); +} diff --git a/tui/src/components/NotificationsTab.tsx b/tui/src/components/NotificationsTab.tsx new file mode 100644 index 000000000..a2ba6d168 --- /dev/null +++ b/tui/src/components/NotificationsTab.tsx @@ -0,0 +1,87 @@ +import React, { useEffect, useRef } from "react"; +import { Box, Text, useInput, type Key } from "ink"; +import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; +import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; +import type { StderrLogEntry } from "../types.js"; + +interface NotificationsTabProps { + client: Client | null; + stderrLogs: StderrLogEntry[]; + width: number; + height: number; + onCountChange?: (count: number) => void; + focused?: boolean; +} + +export function NotificationsTab({ + client, + stderrLogs, + width, + height, + onCountChange, + focused = false, +}: NotificationsTabProps) { + const scrollViewRef = useRef(null); + const onCountChangeRef = useRef(onCountChange); + + // Update ref when callback changes + useEffect(() => { + onCountChangeRef.current = onCountChange; + }, [onCountChange]); + + useEffect(() => { + onCountChangeRef.current?.(stderrLogs.length); + // eslint-disable-next-line react-hooks/exhaustive-deps + }, [stderrLogs.length]); + + // Handle keyboard input for scrolling + useInput( + (input: string, key: Key) => { + if (focused) { + if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } + } + }, + { isActive: focused }, + ); + + return ( + + + + Logging ({stderrLogs.length}) + + + {stderrLogs.length === 0 ? ( + + No stderr output yet + + ) : ( + + {stderrLogs.map((log, index) => ( + + [{log.timestamp.toLocaleTimeString()}] + {log.message} + + ))} + + )} + + ); +} diff --git a/tui/src/components/PromptsTab.tsx b/tui/src/components/PromptsTab.tsx new file mode 100644 index 000000000..5a2180ae6 --- /dev/null +++ b/tui/src/components/PromptsTab.tsx @@ -0,0 +1,223 @@ +import React, { useState, useEffect, useRef } from "react"; +import { Box, Text, useInput, type Key } from "ink"; +import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; +import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; + +interface PromptsTabProps { + prompts: any[]; + client: Client | null; + width: number; + height: number; + onCountChange?: (count: number) => void; + focusedPane?: "list" | "details" | null; + onViewDetails?: (prompt: any) => void; + modalOpen?: boolean; +} + +export function PromptsTab({ + prompts, + client, + width, + height, + onCountChange, + focusedPane = null, + onViewDetails, + modalOpen = false, +}: PromptsTabProps) { + const [selectedIndex, setSelectedIndex] = useState(0); + const [error, setError] = useState(null); + const scrollViewRef = useRef(null); + + // Handle arrow key navigation when focused + useInput( + (input: string, key: Key) => { + if (focusedPane === "list") { + // Navigate the list + if (key.upArrow && selectedIndex > 0) { + setSelectedIndex(selectedIndex - 1); + } else if (key.downArrow && selectedIndex < prompts.length - 1) { + setSelectedIndex(selectedIndex + 1); + } + return; + } + + if (focusedPane === "details") { + // Handle '+' key to view in full screen modal + if (input === "+" && selectedPrompt && onViewDetails) { + onViewDetails(selectedPrompt); + return; + } + + // Scroll the details pane using ink-scroll-view + if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } + } + }, + { + isActive: + !modalOpen && (focusedPane === "list" || focusedPane === "details"), + }, + ); + + // Reset scroll when selection changes + useEffect(() => { + scrollViewRef.current?.scrollTo(0); + }, [selectedIndex]); + + // Reset selected index when prompts array changes (different server) + useEffect(() => { + setSelectedIndex(0); + }, [prompts]); + + const selectedPrompt = prompts[selectedIndex] || null; + + const listWidth = Math.floor(width * 0.4); + const detailWidth = width - listWidth; + + return ( + + {/* Prompts List */} + + + + Prompts ({prompts.length}) + + + {error ? ( + + {error} + + ) : prompts.length === 0 ? ( + + No prompts available + + ) : ( + + {prompts.map((prompt, index) => { + const isSelected = index === selectedIndex; + return ( + + + {isSelected ? "▶ " : " "} + {prompt.name || `Prompt ${index + 1}`} + + + ); + })} + + )} + + + {/* Prompt Details */} + + {selectedPrompt ? ( + <> + {/* Fixed header */} + + + {selectedPrompt.name} + + + + {/* Scrollable content area - direct ScrollView with height prop like NotificationsTab */} + + {/* Description */} + {selectedPrompt.description && ( + <> + {selectedPrompt.description + .split("\n") + .map((line: string, idx: number) => ( + + {line} + + ))} + + )} + + {/* Arguments */} + {selectedPrompt.arguments && + selectedPrompt.arguments.length > 0 && ( + <> + + Arguments: + + {selectedPrompt.arguments.map((arg: any, idx: number) => ( + + + - {arg.name}:{" "} + {arg.description || arg.type || "string"} + + + ))} + + )} + + + {/* Fixed footer - only show when details pane is focused */} + {focusedPane === "details" && ( + + + ↑/↓ to scroll, + to zoom + + + )} + + ) : ( + + Select a prompt to view details + + )} + + + ); +} diff --git a/tui/src/components/ResourcesTab.tsx b/tui/src/components/ResourcesTab.tsx new file mode 100644 index 000000000..28f3f15c4 --- /dev/null +++ b/tui/src/components/ResourcesTab.tsx @@ -0,0 +1,214 @@ +import React, { useState, useEffect, useRef } from "react"; +import { Box, Text, useInput, type Key } from "ink"; +import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; +import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; + +interface ResourcesTabProps { + resources: any[]; + client: Client | null; + width: number; + height: number; + onCountChange?: (count: number) => void; + focusedPane?: "list" | "details" | null; + onViewDetails?: (resource: any) => void; + modalOpen?: boolean; +} + +export function ResourcesTab({ + resources, + client, + width, + height, + onCountChange, + focusedPane = null, + onViewDetails, + modalOpen = false, +}: ResourcesTabProps) { + const [selectedIndex, setSelectedIndex] = useState(0); + const [error, setError] = useState(null); + const scrollViewRef = useRef(null); + + // Handle arrow key navigation when focused + useInput( + (input: string, key: Key) => { + if (focusedPane === "list") { + // Navigate the list + if (key.upArrow && selectedIndex > 0) { + setSelectedIndex(selectedIndex - 1); + } else if (key.downArrow && selectedIndex < resources.length - 1) { + setSelectedIndex(selectedIndex + 1); + } + return; + } + + if (focusedPane === "details") { + // Handle '+' key to view in full screen modal + if (input === "+" && selectedResource && onViewDetails) { + onViewDetails(selectedResource); + return; + } + + // Scroll the details pane using ink-scroll-view + if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } + } + }, + { + isActive: + !modalOpen && (focusedPane === "list" || focusedPane === "details"), + }, + ); + + // Reset scroll when selection changes + useEffect(() => { + scrollViewRef.current?.scrollTo(0); + }, [selectedIndex]); + + // Reset selected index when resources array changes (different server) + useEffect(() => { + setSelectedIndex(0); + }, [resources]); + + const selectedResource = resources[selectedIndex] || null; + + const listWidth = Math.floor(width * 0.4); + const detailWidth = width - listWidth; + + return ( + + {/* Resources List */} + + + + Resources ({resources.length}) + + + {error ? ( + + {error} + + ) : resources.length === 0 ? ( + + No resources available + + ) : ( + + {resources.map((resource, index) => { + const isSelected = index === selectedIndex; + return ( + + + {isSelected ? "▶ " : " "} + {resource.name || resource.uri || `Resource ${index + 1}`} + + + ); + })} + + )} + + + {/* Resource Details */} + + {selectedResource ? ( + <> + {/* Fixed header */} + + + {selectedResource.name || selectedResource.uri} + + + + {/* Scrollable content area - direct ScrollView with height prop like NotificationsTab */} + + {/* Description */} + {selectedResource.description && ( + <> + {selectedResource.description + .split("\n") + .map((line: string, idx: number) => ( + + {line} + + ))} + + )} + + {/* URI */} + {selectedResource.uri && ( + + URI: {selectedResource.uri} + + )} + + {/* MIME Type */} + {selectedResource.mimeType && ( + + MIME Type: {selectedResource.mimeType} + + )} + + + {/* Fixed footer - only show when details pane is focused */} + {focusedPane === "details" && ( + + + ↑/↓ to scroll, + to zoom + + + )} + + ) : ( + + Select a resource to view details + + )} + + + ); +} diff --git a/tui/src/components/Tabs.tsx b/tui/src/components/Tabs.tsx new file mode 100644 index 000000000..681037221 --- /dev/null +++ b/tui/src/components/Tabs.tsx @@ -0,0 +1,88 @@ +import React from "react"; +import { Box, Text } from "ink"; + +export type TabType = + | "info" + | "resources" + | "prompts" + | "tools" + | "messages" + | "logging"; + +interface TabsProps { + activeTab: TabType; + onTabChange: (tab: TabType) => void; + width: number; + counts?: { + info?: number; + resources?: number; + prompts?: number; + tools?: number; + messages?: number; + logging?: number; + }; + focused?: boolean; + showLogging?: boolean; +} + +export const tabs: { id: TabType; label: string; accelerator: string }[] = [ + { id: "info", label: "Info", accelerator: "i" }, + { id: "resources", label: "Resources", accelerator: "r" }, + { id: "prompts", label: "Prompts", accelerator: "p" }, + { id: "tools", label: "Tools", accelerator: "t" }, + { id: "messages", label: "Messages", accelerator: "m" }, + { id: "logging", label: "Logging", accelerator: "l" }, +]; + +export function Tabs({ + activeTab, + onTabChange, + width, + counts = {}, + focused = false, + showLogging = true, +}: TabsProps) { + const visibleTabs = showLogging + ? tabs + : tabs.filter((tab) => tab.id !== "logging"); + + return ( + + {visibleTabs.map((tab) => { + const isActive = activeTab === tab.id; + const count = counts[tab.id]; + const countText = count !== undefined ? ` (${count})` : ""; + const firstChar = tab.label[0]; + const restOfLabel = tab.label.slice(1); + + return ( + + + {isActive ? "▶ " : " "} + {firstChar} + {restOfLabel} + {countText} + + + ); + })} + + ); +} diff --git a/tui/src/components/ToolTestModal.tsx b/tui/src/components/ToolTestModal.tsx new file mode 100644 index 000000000..518cd9642 --- /dev/null +++ b/tui/src/components/ToolTestModal.tsx @@ -0,0 +1,269 @@ +import React, { useState, useEffect } from "react"; +import { Box, Text, useInput, type Key } from "ink"; +import { Form } from "ink-form"; +import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; +import { schemaToForm } from "../utils/schemaToForm.js"; +import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; + +interface ToolTestModalProps { + tool: any; + client: Client | null; + width: number; + height: number; + onClose: () => void; +} + +type ModalState = "form" | "loading" | "results"; + +interface ToolResult { + input: any; + output: any; + error?: string; + errorDetails?: any; + duration: number; +} + +export function ToolTestModal({ + tool, + client, + width, + height, + onClose, +}: ToolTestModalProps) { + const [state, setState] = useState("form"); + const [result, setResult] = useState(null); + const scrollViewRef = React.useRef(null); + + // Use full terminal dimensions instead of passed dimensions + const [terminalDimensions, setTerminalDimensions] = React.useState({ + width: process.stdout.columns || width, + height: process.stdout.rows || height, + }); + + React.useEffect(() => { + const updateDimensions = () => { + setTerminalDimensions({ + width: process.stdout.columns || width, + height: process.stdout.rows || height, + }); + }; + process.stdout.on("resize", updateDimensions); + updateDimensions(); + return () => { + process.stdout.off("resize", updateDimensions); + }; + }, [width, height]); + + const formStructure = tool?.inputSchema + ? schemaToForm(tool.inputSchema, tool.name || "Unknown Tool") + : { + title: `Test Tool: ${tool?.name || "Unknown"}`, + sections: [{ title: "Parameters", fields: [] }], + }; + + // Reset state when modal closes + React.useEffect(() => { + return () => { + // Cleanup: reset state when component unmounts + setState("form"); + setResult(null); + }; + }, []); + + // Handle all input when modal is open - prevents input from reaching underlying components + // When in form mode, only handle escape (form handles its own input) + // When in results mode, handle scrolling keys + useInput( + (input: string, key: Key) => { + // Always handle escape to close modal + if (key.escape) { + setState("form"); + setResult(null); + onClose(); + return; + } + + if (state === "form") { + // In form mode, let the form handle all other input + // Don't process anything else - this prevents input from reaching underlying components + return; + } + + if (state === "results") { + // Allow scrolling in results view + if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } + } + }, + { isActive: true }, + ); + + const handleFormSubmit = async (values: Record) => { + if (!client || !tool) return; + + setState("loading"); + const startTime = Date.now(); + + try { + const response = await client.callTool({ + name: tool.name, + arguments: values, + }); + + const duration = Date.now() - startTime; + + // Handle MCP SDK response format + const output = response.isError + ? { error: true, content: response.content } + : response.structuredContent || response.content || response; + + setResult({ + input: values, + output: response.isError ? null : output, + error: response.isError ? "Tool returned an error" : undefined, + errorDetails: response.isError ? output : undefined, + duration, + }); + setState("results"); + } catch (error) { + const duration = Date.now() - startTime; + const errorObj = + error instanceof Error + ? { message: error.message, name: error.name, stack: error.stack } + : { error: String(error) }; + + setResult({ + input: values, + output: null, + error: error instanceof Error ? error.message : "Unknown error", + errorDetails: errorObj, + duration, + }); + setState("results"); + } + }; + + // Calculate modal dimensions - use almost full screen + const modalWidth = terminalDimensions.width - 2; + const modalHeight = terminalDimensions.height - 2; + + return ( + + {/* Modal Content */} + + {/* Header */} + + + {formStructure.title} + + + (Press ESC to close) + + + {/* Content Area */} + + {state === "form" && ( + +
+ + )} + + {state === "loading" && ( + + Calling tool... + + )} + + {state === "results" && result && ( + + + {/* Timing */} + + + Duration: {result.duration}ms + + + + {/* Input */} + + + Input: + + + + {JSON.stringify(result.input, null, 2)} + + + + + {/* Output or Error */} + {result.error ? ( + + + Error: + + + {result.error} + + {result.errorDetails && ( + <> + + + Error Details: + + + + + {JSON.stringify(result.errorDetails, null, 2)} + + + + )} + + ) : ( + + + Output: + + + + {JSON.stringify(result.output, null, 2)} + + + + )} + + + )} + + + + ); +} diff --git a/tui/src/components/ToolsTab.tsx b/tui/src/components/ToolsTab.tsx new file mode 100644 index 000000000..cb8da53d5 --- /dev/null +++ b/tui/src/components/ToolsTab.tsx @@ -0,0 +1,252 @@ +import React, { useState, useEffect, useRef } from "react"; +import { Box, Text, useInput, type Key } from "ink"; +import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; +import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; + +interface ToolsTabProps { + tools: any[]; + client: Client | null; + width: number; + height: number; + onCountChange?: (count: number) => void; + focusedPane?: "list" | "details" | null; + onTestTool?: (tool: any) => void; + onViewDetails?: (tool: any) => void; + modalOpen?: boolean; +} + +export function ToolsTab({ + tools, + client, + width, + height, + onCountChange, + focusedPane = null, + onTestTool, + onViewDetails, + modalOpen = false, +}: ToolsTabProps) { + const [selectedIndex, setSelectedIndex] = useState(0); + const [error, setError] = useState(null); + const scrollViewRef = useRef(null); + + const listWidth = Math.floor(width * 0.4); + const detailWidth = width - listWidth; + + // Handle arrow key navigation when focused + useInput( + (input: string, key: Key) => { + // Handle Enter key to test tool (works from both list and details) + if (key.return && selectedTool && client && onTestTool) { + onTestTool(selectedTool); + return; + } + + if (focusedPane === "list") { + // Navigate the list + if (key.upArrow && selectedIndex > 0) { + setSelectedIndex(selectedIndex - 1); + } else if (key.downArrow && selectedIndex < tools.length - 1) { + setSelectedIndex(selectedIndex + 1); + } + return; + } + + if (focusedPane === "details") { + // Handle '+' key to view in full screen modal + if (input === "+" && selectedTool && onViewDetails) { + onViewDetails(selectedTool); + return; + } + + // Scroll the details pane using ink-scroll-view + if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } + } + }, + { + isActive: + !modalOpen && (focusedPane === "list" || focusedPane === "details"), + }, + ); + + // Helper to calculate content lines for a tool + const calculateToolContentLines = (tool: any): number => { + let lines = 1; // Name + if (tool.description) lines += tool.description.split("\n").length + 1; + if (tool.inputSchema) { + const schemaStr = JSON.stringify(tool.inputSchema, null, 2); + lines += schemaStr.split("\n").length + 2; // +2 for "Input Schema:" label + } + return lines; + }; + + // Reset scroll when selection changes + useEffect(() => { + scrollViewRef.current?.scrollTo(0); + }, [selectedIndex]); + + // Reset selected index when tools array changes (different server) + useEffect(() => { + setSelectedIndex(0); + }, [tools]); + + const selectedTool = tools[selectedIndex] || null; + + return ( + + {/* Tools List */} + + + + Tools ({tools.length}) + + + {error ? ( + + {error} + + ) : tools.length === 0 ? ( + + No tools available + + ) : ( + + {tools.map((tool, index) => { + const isSelected = index === selectedIndex; + return ( + + + {isSelected ? "▶ " : " "} + {tool.name || `Tool ${index + 1}`} + + + ); + })} + + )} + + + {/* Tool Details */} + + {selectedTool ? ( + <> + {/* Fixed header */} + + + {selectedTool.name} + + {client && ( + + + [Enter to Test] + + + )} + + + {/* Scrollable content area - direct ScrollView with height prop like NotificationsTab */} + + {/* Description */} + {selectedTool.description && ( + <> + {selectedTool.description + .split("\n") + .map((line: string, idx: number) => ( + + {line} + + ))} + + )} + + {/* Input Schema */} + {selectedTool.inputSchema && ( + <> + + Input Schema: + + {JSON.stringify(selectedTool.inputSchema, null, 2) + .split("\n") + .map((line: string, idx: number) => ( + + {line} + + ))} + + )} + + + {/* Fixed footer - only show when details pane is focused */} + {focusedPane === "details" && ( + + + ↑/↓ to scroll, + to zoom + + + )} + + ) : ( + + Select a tool to view details + + )} + + + ); +} diff --git a/tui/src/hooks/useMCPClient.ts b/tui/src/hooks/useMCPClient.ts new file mode 100644 index 000000000..82843a5df --- /dev/null +++ b/tui/src/hooks/useMCPClient.ts @@ -0,0 +1,269 @@ +import { useState, useRef, useCallback } from "react"; +import { Client } from "@modelcontextprotocol/sdk/client/index.js"; +import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; +import type { MCPServerConfig } from "../types.js"; +import type { + Transport, + TransportSendOptions, +} from "@modelcontextprotocol/sdk/shared/transport.js"; +import type { + JSONRPCMessage, + MessageExtraInfo, +} from "@modelcontextprotocol/sdk/types.js"; +import type { + JSONRPCRequest, + JSONRPCNotification, + JSONRPCResultResponse, + JSONRPCErrorResponse, +} from "@modelcontextprotocol/sdk/types.js"; + +export type ConnectionStatus = + | "disconnected" + | "connecting" + | "connected" + | "error"; + +export interface ServerConnection { + name: string; + config: MCPServerConfig; + client: Client | null; + status: ConnectionStatus; + error: string | null; +} + +export interface MessageTrackingCallbacks { + trackRequest?: (message: JSONRPCRequest) => void; + trackResponse?: ( + message: JSONRPCResultResponse | JSONRPCErrorResponse, + ) => void; + trackNotification?: (message: JSONRPCNotification) => void; +} + +// Proxy Transport that intercepts all messages for logging/tracking +class LoggingProxyTransport implements Transport { + constructor( + private baseTransport: Transport, + private callbacks: MessageTrackingCallbacks, + ) {} + + async start(): Promise { + return this.baseTransport.start(); + } + + async send( + message: JSONRPCMessage, + options?: TransportSendOptions, + ): Promise { + // Track outgoing requests (only requests have a method and are sent by the client) + if ("method" in message && "id" in message) { + this.callbacks.trackRequest?.(message as JSONRPCRequest); + } + return this.baseTransport.send(message, options); + } + + async close(): Promise { + return this.baseTransport.close(); + } + + get onclose(): (() => void) | undefined { + return this.baseTransport.onclose; + } + + set onclose(handler: (() => void) | undefined) { + this.baseTransport.onclose = handler; + } + + get onerror(): ((error: Error) => void) | undefined { + return this.baseTransport.onerror; + } + + set onerror(handler: ((error: Error) => void) | undefined) { + this.baseTransport.onerror = handler; + } + + get onmessage(): + | ((message: T, extra?: MessageExtraInfo) => void) + | undefined { + return this.baseTransport.onmessage; + } + + set onmessage( + handler: + | (( + message: T, + extra?: MessageExtraInfo, + ) => void) + | undefined, + ) { + if (handler) { + // Wrap the handler to track incoming messages + this.baseTransport.onmessage = ( + message: T, + extra?: MessageExtraInfo, + ) => { + // Track incoming messages + if ( + "id" in message && + message.id !== null && + message.id !== undefined + ) { + // Check if it's a response (has 'result' or 'error' property) + if ("result" in message || "error" in message) { + this.callbacks.trackResponse?.( + message as JSONRPCResultResponse | JSONRPCErrorResponse, + ); + } else if ("method" in message) { + // This is a request coming from the server + this.callbacks.trackRequest?.(message as JSONRPCRequest); + } + } else if ("method" in message) { + // Notification (no ID, has method) + this.callbacks.trackNotification?.(message as JSONRPCNotification); + } + // Call the original handler + handler(message, extra); + }; + } else { + this.baseTransport.onmessage = undefined; + } + } + + get sessionId(): string | undefined { + return this.baseTransport.sessionId; + } + + get setProtocolVersion(): ((version: string) => void) | undefined { + return this.baseTransport.setProtocolVersion; + } +} + +// Export LoggingProxyTransport for use in other hooks +export { LoggingProxyTransport }; + +export function useMCPClient( + serverName: string | null, + config: MCPServerConfig | null, + messageTracking?: MessageTrackingCallbacks, +) { + const [connection, setConnection] = useState(null); + const clientRef = useRef(null); + const messageTrackingRef = useRef(messageTracking); + const isMountedRef = useRef(true); + + // Update ref when messageTracking changes + if (messageTracking) { + messageTrackingRef.current = messageTracking; + } + + const connect = useCallback(async (): Promise => { + if (!serverName || !config) { + return null; + } + + // If already connected, return existing client + if (clientRef.current && connection?.status === "connected") { + return clientRef.current; + } + + setConnection({ + name: serverName, + config, + client: null, + status: "connecting", + error: null, + }); + + try { + // Only support stdio in useMCPClient hook (legacy support) + // For full transport support, use the transport creation in App.tsx + if ( + "type" in config && + config.type !== "stdio" && + config.type !== undefined + ) { + throw new Error( + `Transport type ${config.type} not supported in useMCPClient hook`, + ); + } + const stdioConfig = config as any; + const baseTransport = new StdioClientTransport({ + command: stdioConfig.command, + args: stdioConfig.args || [], + env: stdioConfig.env, + }); + + // Wrap with proxy transport if message tracking is enabled + const transport = messageTrackingRef.current + ? new LoggingProxyTransport(baseTransport, messageTrackingRef.current) + : baseTransport; + + const client = new Client( + { + name: "mcp-inspect", + version: "1.0.0", + }, + { + capabilities: {}, + }, + ); + + await client.connect(transport); + + if (!isMountedRef.current) { + await client.close(); + return null; + } + + clientRef.current = client; + setConnection({ + name: serverName, + config, + client, + status: "connected", + error: null, + }); + + return client; + } catch (error) { + if (!isMountedRef.current) return null; + + setConnection({ + name: serverName, + config, + client: null, + status: "error", + error: error instanceof Error ? error.message : "Unknown error", + }); + return null; + } + }, [serverName, config, connection?.status]); + + const disconnect = useCallback(async () => { + if (clientRef.current) { + try { + await clientRef.current.close(); + } catch (error) { + // Ignore errors on close + } + clientRef.current = null; + } + + if (serverName && config) { + setConnection({ + name: serverName, + config, + client: null, + status: "disconnected", + error: null, + }); + } else { + setConnection(null); + } + }, [serverName, config]); + + return { + connection, + connect, + disconnect, + }; +} diff --git a/tui/src/hooks/useMessageTracking.ts b/tui/src/hooks/useMessageTracking.ts new file mode 100644 index 000000000..b720c0a22 --- /dev/null +++ b/tui/src/hooks/useMessageTracking.ts @@ -0,0 +1,171 @@ +import { useState, useCallback, useRef } from "react"; +import type { + MessageEntry, + MessageHistory, + JSONRPCRequest, + JSONRPCNotification, + JSONRPCResultResponse, + JSONRPCErrorResponse, + JSONRPCMessage, +} from "../types/messages.js"; + +export function useMessageTracking() { + const [history, setHistory] = useState({}); + const pendingRequestsRef = useRef< + Map + >(new Map()); + + const trackRequest = useCallback( + (serverName: string, message: JSONRPCRequest) => { + const entry: MessageEntry = { + id: `${serverName}-${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "request", + message, + }; + + if ("id" in message && message.id !== null && message.id !== undefined) { + pendingRequestsRef.current.set(message.id, { + timestamp: entry.timestamp, + serverName, + }); + } + + setHistory((prev) => ({ + ...prev, + [serverName]: [...(prev[serverName] || []), entry], + })); + + return entry.id; + }, + [], + ); + + const trackResponse = useCallback( + ( + serverName: string, + message: JSONRPCResultResponse | JSONRPCErrorResponse, + ) => { + if (!("id" in message) || message.id === undefined) { + // Response without an ID (shouldn't happen, but handle it) + return; + } + + const entryId = message.id; + const pending = pendingRequestsRef.current.get(entryId); + + if (pending && pending.serverName === serverName) { + pendingRequestsRef.current.delete(entryId); + const duration = Date.now() - pending.timestamp.getTime(); + + setHistory((prev) => { + const serverHistory = prev[serverName] || []; + // Find the matching request by message ID + const requestIndex = serverHistory.findIndex( + (e) => + e.direction === "request" && + "id" in e.message && + e.message.id === entryId, + ); + + if (requestIndex !== -1) { + // Update the request entry with the response + const updatedHistory = [...serverHistory]; + updatedHistory[requestIndex] = { + ...updatedHistory[requestIndex], + response: message, + duration, + }; + return { ...prev, [serverName]: updatedHistory }; + } + + // If no matching request found, create a new entry + const newEntry: MessageEntry = { + id: `${serverName}-${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "response", + message, + duration: 0, + }; + return { + ...prev, + [serverName]: [...serverHistory, newEntry], + }; + }); + } else { + // Response without a matching request (might be from a different server or orphaned) + setHistory((prev) => { + const serverHistory = prev[serverName] || []; + // Check if there's a matching request in the history + const requestIndex = serverHistory.findIndex( + (e) => + e.direction === "request" && + "id" in e.message && + e.message.id === entryId, + ); + + if (requestIndex !== -1) { + // Update the request entry with the response + const updatedHistory = [...serverHistory]; + updatedHistory[requestIndex] = { + ...updatedHistory[requestIndex], + response: message, + }; + return { ...prev, [serverName]: updatedHistory }; + } + + // Create a new entry for orphaned response + const newEntry: MessageEntry = { + id: `${serverName}-${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "response", + message, + }; + return { + ...prev, + [serverName]: [...serverHistory, newEntry], + }; + }); + } + }, + [], + ); + + const trackNotification = useCallback( + (serverName: string, message: JSONRPCNotification) => { + const entry: MessageEntry = { + id: `${serverName}-${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "notification", + message, + }; + + setHistory((prev) => ({ + ...prev, + [serverName]: [...(prev[serverName] || []), entry], + })); + }, + [], + ); + + const clearHistory = useCallback((serverName?: string) => { + if (serverName) { + setHistory((prev) => { + const updated = { ...prev }; + delete updated[serverName]; + return updated; + }); + } else { + setHistory({}); + pendingRequestsRef.current.clear(); + } + }, []); + + return { + history, + trackRequest, + trackResponse, + trackNotification, + clearHistory, + }; +} diff --git a/tui/src/types.ts b/tui/src/types.ts new file mode 100644 index 000000000..00f405e21 --- /dev/null +++ b/tui/src/types.ts @@ -0,0 +1,64 @@ +// Stdio transport config +export interface StdioServerConfig { + type?: "stdio"; + command: string; + args?: string[]; + env?: Record; + cwd?: string; +} + +// SSE transport config +export interface SseServerConfig { + type: "sse"; + url: string; + headers?: Record; + eventSourceInit?: Record; + requestInit?: Record; +} + +// StreamableHTTP transport config +export interface StreamableHttpServerConfig { + type: "streamableHttp"; + url: string; + headers?: Record; + requestInit?: Record; +} + +export type MCPServerConfig = + | StdioServerConfig + | SseServerConfig + | StreamableHttpServerConfig; + +export interface MCPConfig { + mcpServers: Record; +} + +export type ConnectionStatus = + | "disconnected" + | "connecting" + | "connected" + | "error"; + +export interface StderrLogEntry { + timestamp: Date; + message: string; +} + +export interface ServerState { + status: ConnectionStatus; + error: string | null; + capabilities: { + resources?: boolean; + prompts?: boolean; + tools?: boolean; + }; + serverInfo?: { + name?: string; + version?: string; + }; + instructions?: string; + resources: any[]; + prompts: any[]; + tools: any[]; + stderrLogs: StderrLogEntry[]; +} diff --git a/tui/src/types/focus.ts b/tui/src/types/focus.ts new file mode 100644 index 000000000..62233404b --- /dev/null +++ b/tui/src/types/focus.ts @@ -0,0 +1,10 @@ +export type FocusArea = + | "serverList" + | "tabs" + // Used by Resources/Prompts/Tools - list pane + | "tabContentList" + // Used by Resources/Prompts/Tools - details pane + | "tabContentDetails" + // Used only when activeTab === 'messages' + | "messagesList" + | "messagesDetail"; diff --git a/tui/src/types/messages.ts b/tui/src/types/messages.ts new file mode 100644 index 000000000..79f8e5bf0 --- /dev/null +++ b/tui/src/types/messages.ts @@ -0,0 +1,32 @@ +import type { + JSONRPCRequest, + JSONRPCNotification, + JSONRPCResultResponse, + JSONRPCErrorResponse, + JSONRPCMessage, +} from "@modelcontextprotocol/sdk/types.js"; + +export type { + JSONRPCRequest, + JSONRPCNotification, + JSONRPCResultResponse, + JSONRPCErrorResponse, + JSONRPCMessage, +}; + +export interface MessageEntry { + id: string; + timestamp: Date; + direction: "request" | "response" | "notification"; + message: + | JSONRPCRequest + | JSONRPCNotification + | JSONRPCResultResponse + | JSONRPCErrorResponse; + response?: JSONRPCResultResponse | JSONRPCErrorResponse; + duration?: number; // Time between request and response in ms +} + +export interface MessageHistory { + [serverName: string]: MessageEntry[]; +} diff --git a/tui/src/utils/client.ts b/tui/src/utils/client.ts new file mode 100644 index 000000000..9c767f717 --- /dev/null +++ b/tui/src/utils/client.ts @@ -0,0 +1,17 @@ +import { Client } from "@modelcontextprotocol/sdk/client/index.js"; +import type { Transport } from "@modelcontextprotocol/sdk/shared/transport.js"; + +/** + * Creates a new MCP client with standard configuration + */ +export function createClient(transport: Transport): Client { + return new Client( + { + name: "mcp-inspect", + version: "1.0.5", + }, + { + capabilities: {}, + }, + ); +} diff --git a/tui/src/utils/config.ts b/tui/src/utils/config.ts new file mode 100644 index 000000000..cf9c052d6 --- /dev/null +++ b/tui/src/utils/config.ts @@ -0,0 +1,28 @@ +import { readFileSync } from "fs"; +import { resolve } from "path"; +import type { MCPConfig } from "../types.js"; + +/** + * Loads and validates an MCP servers configuration file + * @param configPath - Path to the config file (relative to process.cwd() or absolute) + * @returns The parsed MCPConfig + * @throws Error if the file cannot be loaded, parsed, or is invalid + */ +export function loadMcpServersConfig(configPath: string): MCPConfig { + try { + const resolvedPath = resolve(process.cwd(), configPath); + const configContent = readFileSync(resolvedPath, "utf-8"); + const config = JSON.parse(configContent) as MCPConfig; + + if (!config.mcpServers) { + throw new Error("Configuration file must contain an mcpServers element"); + } + + return config; + } catch (error) { + if (error instanceof Error) { + throw new Error(`Error loading configuration: ${error.message}`); + } + throw new Error("Error loading configuration: Unknown error"); + } +} diff --git a/tui/src/utils/schemaToForm.ts b/tui/src/utils/schemaToForm.ts new file mode 100644 index 000000000..245ae2ab7 --- /dev/null +++ b/tui/src/utils/schemaToForm.ts @@ -0,0 +1,116 @@ +/** + * Converts JSON Schema to ink-form format + */ + +import type { FormStructure, FormSection, FormField } from "ink-form"; + +/** + * Converts a JSON Schema to ink-form structure + */ +export function schemaToForm(schema: any, toolName: string): FormStructure { + const fields: FormField[] = []; + + if (!schema || !schema.properties) { + return { + title: `Test Tool: ${toolName}`, + sections: [{ title: "Parameters", fields: [] }], + }; + } + + const properties = schema.properties || {}; + const required = schema.required || []; + + for (const [key, prop] of Object.entries(properties)) { + const property = prop as any; + const baseField = { + name: key, + label: property.title || key, + required: required.includes(key), + }; + + let field: FormField; + + // Handle enum -> select + if (property.enum) { + if (property.type === "array" && property.items?.enum) { + // For array of enums, we'll use select but handle it differently + // Note: ink-form doesn't have multiselect, so we'll use select + field = { + type: "select", + ...baseField, + options: property.items.enum.map((val: any) => ({ + label: String(val), + value: String(val), + })), + } as FormField; + } else { + // Single select + field = { + type: "select", + ...baseField, + options: property.enum.map((val: any) => ({ + label: String(val), + value: String(val), + })), + } as FormField; + } + } else { + // Map JSON Schema types to ink-form types + switch (property.type) { + case "string": + field = { + type: "string", + ...baseField, + } as FormField; + break; + case "integer": + field = { + type: "integer", + ...baseField, + ...(property.minimum !== undefined && { min: property.minimum }), + ...(property.maximum !== undefined && { max: property.maximum }), + } as FormField; + break; + case "number": + field = { + type: "float", + ...baseField, + ...(property.minimum !== undefined && { min: property.minimum }), + ...(property.maximum !== undefined && { max: property.maximum }), + } as FormField; + break; + case "boolean": + field = { + type: "boolean", + ...baseField, + } as FormField; + break; + default: + // Default to string for unknown types + field = { + type: "string", + ...baseField, + } as FormField; + } + } + + // Set initial value from default + if (property.default !== undefined) { + (field as any).initialValue = property.default; + } + + fields.push(field); + } + + const sections: FormSection[] = [ + { + title: "Parameters", + fields, + }, + ]; + + return { + title: `Test Tool: ${toolName}`, + sections, + }; +} diff --git a/tui/src/utils/transport.ts b/tui/src/utils/transport.ts new file mode 100644 index 000000000..ff2a759fe --- /dev/null +++ b/tui/src/utils/transport.ts @@ -0,0 +1,111 @@ +import type { + MCPServerConfig, + StdioServerConfig, + SseServerConfig, + StreamableHttpServerConfig, +} from "../types.js"; +import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; +import { SSEClientTransport } from "@modelcontextprotocol/sdk/client/sse.js"; +import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"; +import type { Transport } from "@modelcontextprotocol/sdk/shared/transport.js"; +import type { StderrLogEntry } from "../types.js"; + +export type ServerType = "stdio" | "sse" | "streamableHttp"; + +export function getServerType(config: MCPServerConfig): ServerType { + if ("type" in config) { + if (config.type === "sse") return "sse"; + if (config.type === "streamableHttp") return "streamableHttp"; + } + return "stdio"; +} + +export interface CreateTransportOptions { + /** + * Optional callback to handle stderr logs from stdio transports + */ + onStderr?: (entry: StderrLogEntry) => void; + + /** + * Whether to pipe stderr for stdio transports (default: true for TUI, false for CLI) + */ + pipeStderr?: boolean; +} + +export interface CreateTransportResult { + transport: Transport; +} + +/** + * Creates the appropriate transport for an MCP server configuration + */ +export function createTransport( + config: MCPServerConfig, + options: CreateTransportOptions = {}, +): CreateTransportResult { + const serverType = getServerType(config); + const { onStderr, pipeStderr = false } = options; + + if (serverType === "stdio") { + const stdioConfig = config as StdioServerConfig; + const transport = new StdioClientTransport({ + command: stdioConfig.command, + args: stdioConfig.args || [], + env: stdioConfig.env, + cwd: stdioConfig.cwd, + stderr: pipeStderr ? "pipe" : undefined, + }); + + // Set up stderr listener if requested + if (pipeStderr && transport.stderr && onStderr) { + transport.stderr.on("data", (data: Buffer) => { + const logEntry = data.toString().trim(); + if (logEntry) { + onStderr({ + timestamp: new Date(), + message: logEntry, + }); + } + }); + } + + return { transport: transport }; + } else if (serverType === "sse") { + const sseConfig = config as SseServerConfig; + const url = new URL(sseConfig.url); + + // Merge headers and requestInit + const eventSourceInit: Record = { + ...sseConfig.eventSourceInit, + ...(sseConfig.headers && { headers: sseConfig.headers }), + }; + + const requestInit: RequestInit = { + ...sseConfig.requestInit, + ...(sseConfig.headers && { headers: sseConfig.headers }), + }; + + const transport = new SSEClientTransport(url, { + eventSourceInit, + requestInit, + }); + + return { transport }; + } else { + // streamableHttp + const httpConfig = config as StreamableHttpServerConfig; + const url = new URL(httpConfig.url); + + // Merge headers and requestInit + const requestInit: RequestInit = { + ...httpConfig.requestInit, + ...(httpConfig.headers && { headers: httpConfig.headers }), + }; + + const transport = new StreamableHTTPClientTransport(url, { + requestInit, + }); + + return { transport }; + } +} diff --git a/tui/tsconfig.json b/tui/tsconfig.json new file mode 100644 index 000000000..a444f1099 --- /dev/null +++ b/tui/tsconfig.json @@ -0,0 +1,17 @@ +{ + "compilerOptions": { + "target": "ES2022", + "module": "Node16", + "moduleResolution": "node16", + "jsx": "react-jsx", + "strict": true, + "esModuleInterop": true, + "skipLibCheck": true, + "forceConsistentCasingInFileNames": true, + "resolveJsonModule": true, + "outDir": "./build", + "rootDir": "./" + }, + "include": ["src/**/*", "tui.tsx"], + "exclude": ["node_modules", "build"] +} diff --git a/tui/tui.tsx b/tui/tui.tsx new file mode 100755 index 000000000..adf2678d4 --- /dev/null +++ b/tui/tui.tsx @@ -0,0 +1,68 @@ +#!/usr/bin/env node + +import { render } from "ink"; +import App from "./src/App.js"; + +export async function runTui(): Promise { + const args = process.argv.slice(2); + + const configFile = args[0]; + + if (!configFile) { + console.error("Usage: mcp-inspector-tui "); + process.exit(1); + } + + // Intercept stdout.write to filter out \x1b[3J (Erase Saved Lines) + // This prevents Ink's clearTerminal from clearing scrollback on macOS Terminal + // We can't access Ink's internal instance to prevent clearTerminal from being called, + // so we filter the escape code instead + const originalWrite = process.stdout.write.bind(process.stdout); + process.stdout.write = function ( + chunk: any, + encoding?: any, + cb?: any, + ): boolean { + if (typeof chunk === "string") { + // Only process if the escape code is present (minimize overhead) + if (chunk.includes("\x1b[3J")) { + chunk = chunk.replace(/\x1b\[3J/g, ""); + } + } else if (Buffer.isBuffer(chunk)) { + // Only process if the escape code is present (minimize overhead) + if (chunk.includes("\x1b[3J")) { + let str = chunk.toString("utf8"); + str = str.replace(/\x1b\[3J/g, ""); + chunk = Buffer.from(str, "utf8"); + } + } + return originalWrite(chunk, encoding, cb); + }; + + // Enter alternate screen buffer before rendering + if (process.stdout.isTTY) { + process.stdout.write("\x1b[?1049h"); + } + + // Render the app + const instance = render(); + + // Wait for exit, then switch back from alternate screen + try { + await instance.waitUntilExit(); + // Unmount has completed - clearTerminal was patched to not include \x1b[3J + // Switch back from alternate screen + if (process.stdout.isTTY) { + process.stdout.write("\x1b[?1049l"); + } + process.exit(0); + } catch (error: unknown) { + if (process.stdout.isTTY) { + process.stdout.write("\x1b[?1049l"); + } + console.error("Error:", error); + process.exit(1); + } +} + +runTui(); From b0b5bea4a2c480e7e92a894128af27b1e5ca3f7c Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Sun, 18 Jan 2026 23:42:27 -0800 Subject: [PATCH 10/44] Major refactor around InspectorClient (not complete) --- cli/src/cli.ts | 5 + docs/tui-integration-design.md | 24 + tui/build/src/App.js | 397 +++++----------- tui/build/src/components/InfoTab.js | 9 +- tui/build/src/components/NotificationsTab.js | 7 +- tui/build/src/components/PromptsTab.js | 3 +- tui/build/src/hooks/useInspectorClient.js | 136 ++++++ tui/build/src/hooks/useMCPClient.js | 81 +--- tui/build/src/utils/inspectorClient.js | 332 +++++++++++++ .../src/utils/messageTrackingTransport.js | 71 +++ tui/build/tui.js | 1 - tui/src/App.tsx | 435 ++++++------------ tui/src/components/HistoryTab.tsx | 2 +- tui/src/hooks/useInspectorClient.ts | 187 ++++++++ tui/src/hooks/useMCPClient.ts | 269 ----------- tui/src/hooks/useMessageTracking.ts | 171 ------- tui/src/types.ts | 33 +- tui/src/types/messages.ts | 32 -- tui/src/utils/inspectorClient.ts | 411 +++++++++++++++++ tui/src/utils/messageTrackingTransport.ts | 120 +++++ 20 files changed, 1580 insertions(+), 1146 deletions(-) create mode 100644 tui/build/src/hooks/useInspectorClient.js create mode 100644 tui/build/src/utils/inspectorClient.js create mode 100644 tui/build/src/utils/messageTrackingTransport.js create mode 100644 tui/src/hooks/useInspectorClient.ts delete mode 100644 tui/src/hooks/useMCPClient.ts delete mode 100644 tui/src/hooks/useMessageTracking.ts delete mode 100644 tui/src/types/messages.ts create mode 100644 tui/src/utils/inspectorClient.ts create mode 100644 tui/src/utils/messageTrackingTransport.ts diff --git a/cli/src/cli.ts b/cli/src/cli.ts index fd2250b63..ae07d7bc2 100644 --- a/cli/src/cli.ts +++ b/cli/src/cli.ts @@ -9,6 +9,8 @@ import { fileURLToPath } from "url"; const __dirname = dirname(fileURLToPath(import.meta.url)); +// This represents the parsed arguments produced by parseArgs() +// type Args = { command: string; args: string[]; @@ -19,6 +21,9 @@ type Args = { headers?: Record; }; +// This is only to provide typed access to the parsed program options +// This could just be defined locally in parseArgs() since that's the only place it is used +// type CliOptions = { e?: Record; config?: string; diff --git a/docs/tui-integration-design.md b/docs/tui-integration-design.md index 9ed01a459..38a83f3f1 100644 --- a/docs/tui-integration-design.md +++ b/docs/tui-integration-design.md @@ -558,3 +558,27 @@ This provides a single entry point with consistent argument parsing across all t - The TUI from mcp-inspect is well-structured and should integrate cleanly - All phase-specific details, code sharing strategies, and implementation notes are documented in their respective sections above + +## Additonal Notes + +InspectorClient wraps or abstracts an McpClient + server + +- Collect message +- Collect logging +- Provide access to client functionality (prompts, resources, tools) + +```javascript +InspectorClient( + transportConfig, // so it can create transport with logging if needed) + maxMessages, // if zero, don't listen + maxLogEvents, // if zero, don't listen +); +// Create Client +// Create Transport (wrap with MessageTrackingTransport if needed) +// - Stdio transport needs to be created with pipe and listener as appropriate +// We will keep the list of messages and log events in this object instead of directl in the React state +``` + +May be used by CLI (plain TypeScript) or in our TUI (React app), so it needs to be React friendly + +- To make it React friendly, event emitter + custom hooks? diff --git a/tui/build/src/App.js b/tui/build/src/App.js index 57edfdb7c..d2ac97eda 100644 --- a/tui/build/src/App.js +++ b/tui/build/src/App.js @@ -9,8 +9,8 @@ import { readFileSync } from "fs"; import { fileURLToPath } from "url"; import { dirname, join } from "path"; import { loadMcpServersConfig } from "./utils/config.js"; -import { useMCPClient, LoggingProxyTransport } from "./hooks/useMCPClient.js"; -import { useMessageTracking } from "./hooks/useMessageTracking.js"; +import { InspectorClient } from "./utils/inspectorClient.js"; +import { useInspectorClient } from "./hooks/useInspectorClient.js"; import { Tabs, tabs as tabList } from "./components/Tabs.js"; import { InfoTab } from "./components/InfoTab.js"; import { ResourcesTab } from "./components/ResourcesTab.js"; @@ -20,8 +20,7 @@ import { NotificationsTab } from "./components/NotificationsTab.js"; import { HistoryTab } from "./components/HistoryTab.js"; import { ToolTestModal } from "./components/ToolTestModal.js"; import { DetailsModal } from "./components/DetailsModal.js"; -import { createTransport, getServerType } from "./utils/transport.js"; -import { createClient } from "./utils/client.js"; +import { getServerType } from "./utils/transport.js"; const __filename = fileURLToPath(import.meta.url); const __dirname = dirname(__filename); // Read package.json to get project info @@ -49,17 +48,8 @@ function App({ configFile }) { const [toolTestModal, setToolTestModal] = useState(null); // Details modal state const [detailsModal, setDetailsModal] = useState(null); - // Server state management - store state for all servers - const [serverStates, setServerStates] = useState({}); - const [serverClients, setServerClients] = useState({}); - // Message tracking - const { - history: messageHistory, - trackRequest, - trackResponse, - trackNotification, - clearHistory, - } = useMessageTracking(); + // InspectorClient instances for each server + const [inspectorClients, setInspectorClients] = useState({}); const [dimensions, setDimensions] = useState({ width: process.stdout.columns || 80, height: process.stdout.rows || 24, @@ -93,254 +83,114 @@ function App({ configFile }) { const selectedServerConfig = selectedServer ? mcpConfig.mcpServers[selectedServer] : null; - // Preselect the first server on mount + // Create InspectorClient instances for each server on mount useEffect(() => { - if (serverNames.length > 0 && selectedServer === null) { - setSelectedServer(serverNames[0]); - } - // eslint-disable-next-line react-hooks/exhaustive-deps - }, []); - // Initialize server states for all configured servers on mount - useEffect(() => { - const initialStates = {}; + const newClients = {}; for (const serverName of serverNames) { - if (!(serverName in serverStates)) { - initialStates[serverName] = { - status: "disconnected", - error: null, - capabilities: {}, - serverInfo: undefined, - instructions: undefined, - resources: [], - prompts: [], - tools: [], - stderrLogs: [], - }; + if (!(serverName in inspectorClients)) { + const serverConfig = mcpConfig.mcpServers[serverName]; + newClients[serverName] = new InspectorClient(serverConfig, { + maxMessages: 1000, + maxStderrLogEvents: 1000, + pipeStderr: true, + }); } } - if (Object.keys(initialStates).length > 0) { - setServerStates((prev) => ({ ...prev, ...initialStates })); + if (Object.keys(newClients).length > 0) { + setInspectorClients((prev) => ({ ...prev, ...newClients })); } // eslint-disable-next-line react-hooks/exhaustive-deps }, []); - // Memoize message tracking callbacks to prevent unnecessary re-renders - const messageTracking = useMemo(() => { - if (!selectedServer) return undefined; - return { - trackRequest: (msg) => trackRequest(selectedServer, msg), - trackResponse: (msg) => trackResponse(selectedServer, msg), - trackNotification: (msg) => trackNotification(selectedServer, msg), - }; - }, [selectedServer, trackRequest, trackResponse, trackNotification]); - // Get client for selected server (for connection management) - const { - connection, - connect: connectClient, - disconnect: disconnectClient, - } = useMCPClient(selectedServer, selectedServerConfig, messageTracking); - // Helper function to create the appropriate transport with stderr logging - const createTransportWithLogging = useCallback((config, serverName) => { - return createTransport(config, { - pipeStderr: true, - onStderr: (entry) => { - setServerStates((prev) => { - const existingState = prev[serverName]; - if (!existingState) { - // Initialize state if it doesn't exist yet - return { - ...prev, - [serverName]: { - status: "connecting", - error: null, - capabilities: {}, - serverInfo: undefined, - instructions: undefined, - resources: [], - prompts: [], - tools: [], - stderrLogs: [entry], - }, - }; - } - return { - ...prev, - [serverName]: { - ...existingState, - stderrLogs: [...(existingState.stderrLogs || []), entry].slice( - -1000, - ), // Keep last 1000 log entries - }, - }; + // Cleanup: disconnect all clients on unmount + useEffect(() => { + return () => { + Object.values(inspectorClients).forEach((client) => { + client.disconnect().catch(() => { + // Ignore errors during cleanup }); - }, - }); + }); + }; + }, [inspectorClients]); + // Preselect the first server on mount + useEffect(() => { + if (serverNames.length > 0 && selectedServer === null) { + setSelectedServer(serverNames[0]); + } + // eslint-disable-next-line react-hooks/exhaustive-deps }, []); - // Connect handler - connects, gets capabilities, and queries resources/prompts/tools + // Get InspectorClient for selected server + const selectedInspectorClient = useMemo( + () => (selectedServer ? inspectorClients[selectedServer] : null), + [selectedServer, inspectorClients], + ); + // Use the hook to get reactive state from InspectorClient + const { + status: inspectorStatus, + messages: inspectorMessages, + stderrLogs: inspectorStderrLogs, + tools: inspectorTools, + resources: inspectorResources, + prompts: inspectorPrompts, + capabilities: inspectorCapabilities, + serverInfo: inspectorServerInfo, + instructions: inspectorInstructions, + client: inspectorClient, + connect: connectInspector, + disconnect: disconnectInspector, + clearMessages: clearInspectorMessages, + clearStderrLogs: clearInspectorStderrLogs, + } = useInspectorClient(selectedInspectorClient); + // Connect handler - InspectorClient now handles fetching server data automatically const handleConnect = useCallback(async () => { - if (!selectedServer || !selectedServerConfig) return; - // Capture server name immediately to avoid closure issues - const serverName = selectedServer; - const serverConfig = selectedServerConfig; - // Clear all data when connecting/reconnecting to start fresh - clearHistory(serverName); - // Clear stderr logs BEFORE connecting - setServerStates((prev) => ({ - ...prev, - [serverName]: { - ...(prev[serverName] || { - status: "disconnected", - error: null, - capabilities: {}, - resources: [], - prompts: [], - tools: [], - }), - status: "connecting", - stderrLogs: [], // Clear logs before connecting - }, - })); - // Create the appropriate transport with stderr logging - const { transport: baseTransport } = createTransportWithLogging( - serverConfig, - serverName, - ); - // Wrap with proxy transport if message tracking is enabled - const transport = messageTracking - ? new LoggingProxyTransport(baseTransport, messageTracking) - : baseTransport; - const client = createClient(transport); + if (!selectedServer || !selectedInspectorClient) return; + // Clear messages and stderr logs when connecting/reconnecting + clearInspectorMessages(); + clearInspectorStderrLogs(); try { - await client.connect(transport); - // Store client immediately - setServerClients((prev) => ({ ...prev, [serverName]: client })); - // Get server capabilities - const serverCapabilities = client.getServerCapabilities() || {}; - const capabilities = { - resources: !!serverCapabilities.resources, - prompts: !!serverCapabilities.prompts, - tools: !!serverCapabilities.tools, - }; - // Get server info (name, version) and instructions - const serverVersion = client.getServerVersion(); - const serverInfo = serverVersion - ? { - name: serverVersion.name, - version: serverVersion.version, - } - : undefined; - const instructions = client.getInstructions(); - // Query resources, prompts, and tools based on capabilities - let resources = []; - let prompts = []; - let tools = []; - if (capabilities.resources) { - try { - const result = await client.listResources(); - resources = result.resources || []; - } catch (err) { - // Ignore errors, just leave empty - } - } - if (capabilities.prompts) { - try { - const result = await client.listPrompts(); - prompts = result.prompts || []; - } catch (err) { - // Ignore errors, just leave empty - } - } - if (capabilities.tools) { - try { - const result = await client.listTools(); - tools = result.tools || []; - } catch (err) { - // Ignore errors, just leave empty - } - } - // Update server state - use captured serverName to ensure we update the correct server - // Preserve stderrLogs that were captured during connection (after we cleared them before connecting) - setServerStates((prev) => ({ - ...prev, - [serverName]: { - status: "connected", - error: null, - capabilities, - serverInfo, - instructions, - resources, - prompts, - tools, - stderrLogs: prev[serverName]?.stderrLogs || [], // Preserve logs captured during connection - }, - })); + await connectInspector(); + // InspectorClient automatically fetches server data (capabilities, tools, resources, prompts, etc.) + // on connect, so we don't need to do anything here } catch (error) { - // Make sure we clean up the client on error - try { - await client.close(); - } catch (closeErr) { - // Ignore close errors - } - setServerStates((prev) => ({ - ...prev, - [serverName]: { - ...(prev[serverName] || { - status: "disconnected", - error: null, - capabilities: {}, - resources: [], - prompts: [], - tools: [], - }), - status: "error", - error: error instanceof Error ? error.message : "Unknown error", - }, - })); + // Error handling is done by InspectorClient and will be reflected in status } - }, [selectedServer, selectedServerConfig, messageTracking]); + }, [ + selectedServer, + selectedInspectorClient, + connectInspector, + clearInspectorMessages, + clearInspectorStderrLogs, + ]); // Disconnect handler const handleDisconnect = useCallback(async () => { if (!selectedServer) return; - await disconnectClient(); - setServerClients((prev) => { - const newClients = { ...prev }; - delete newClients[selectedServer]; - return newClients; - }); - // Preserve all data when disconnecting - only change status - setServerStates((prev) => ({ - ...prev, - [selectedServer]: { - ...prev[selectedServer], - status: "disconnected", - error: null, - // Keep all existing data: capabilities, serverInfo, instructions, resources, prompts, tools, stderrLogs - }, - })); - // Update tab counts based on preserved data - const preservedState = serverStates[selectedServer]; - if (preservedState) { - setTabCounts((prev) => ({ - ...prev, - resources: preservedState.resources?.length || 0, - prompts: preservedState.prompts?.length || 0, - tools: preservedState.tools?.length || 0, - messages: messageHistory[selectedServer]?.length || 0, - logging: preservedState.stderrLogs?.length || 0, - })); - } - }, [selectedServer, disconnectClient, serverStates, messageHistory]); - const currentServerMessages = useMemo( - () => (selectedServer ? messageHistory[selectedServer] || [] : []), - [selectedServer, messageHistory], - ); - const currentServerState = useMemo( - () => (selectedServer ? serverStates[selectedServer] || null : null), - [selectedServer, serverStates], - ); - const currentServerClient = useMemo( - () => (selectedServer ? serverClients[selectedServer] || null : null), - [selectedServer, serverClients], - ); + await disconnectInspector(); + // InspectorClient will update status automatically, and data is preserved + }, [selectedServer, disconnectInspector]); + // Build current server state from InspectorClient data + const currentServerState = useMemo(() => { + if (!selectedServer) return null; + return { + status: inspectorStatus, + error: null, // InspectorClient doesn't track error in state, only emits error events + capabilities: inspectorCapabilities, + serverInfo: inspectorServerInfo, + instructions: inspectorInstructions, + resources: inspectorResources, + prompts: inspectorPrompts, + tools: inspectorTools, + stderrLogs: inspectorStderrLogs, // InspectorClient manages this + }; + }, [ + selectedServer, + inspectorStatus, + inspectorCapabilities, + inspectorServerInfo, + inspectorInstructions, + inspectorResources, + inspectorPrompts, + inspectorTools, + inspectorStderrLogs, + ]); // Helper functions to render details modal content const renderResourceDetails = (resource) => _jsxs(_Fragment, { @@ -605,29 +455,38 @@ function App({ configFile }) { }), ], }); - // Update tab counts when selected server changes + // Update tab counts when selected server changes or InspectorClient state changes useEffect(() => { if (!selectedServer) { return; } - const serverState = serverStates[selectedServer]; - if (serverState?.status === "connected") { + if (inspectorStatus === "connected") { setTabCounts({ - resources: serverState.resources?.length || 0, - prompts: serverState.prompts?.length || 0, - tools: serverState.tools?.length || 0, - messages: messageHistory[selectedServer]?.length || 0, + resources: inspectorResources.length || 0, + prompts: inspectorPrompts.length || 0, + tools: inspectorTools.length || 0, + messages: inspectorMessages.length || 0, + logging: inspectorStderrLogs.length || 0, }); - } else if (serverState?.status !== "connecting") { + } else if (inspectorStatus !== "connecting") { // Reset counts for disconnected or error states setTabCounts({ resources: 0, prompts: 0, tools: 0, - messages: messageHistory[selectedServer]?.length || 0, + messages: inspectorMessages.length || 0, + logging: inspectorStderrLogs.length || 0, }); } - }, [selectedServer, serverStates, messageHistory]); + }, [ + selectedServer, + inspectorStatus, + inspectorResources, + inspectorPrompts, + inspectorTools, + inspectorMessages, + inspectorStderrLogs, + ]); // Keep focus state consistent when switching tabs useEffect(() => { if (activeTab === "messages") { @@ -735,17 +594,14 @@ function App({ configFile }) { } // Accelerator keys for connect/disconnect (work from anywhere) if (selectedServer) { - const serverState = serverStates[selectedServer]; if ( input.toLowerCase() === "c" && - (serverState?.status === "disconnected" || - serverState?.status === "error") + (inspectorStatus === "disconnected" || inspectorStatus === "error") ) { handleConnect(); } else if ( input.toLowerCase() === "d" && - (serverState?.status === "connected" || - serverState?.status === "connecting") + (inspectorStatus === "connected" || inspectorStatus === "connecting") ) { handleDisconnect(); } @@ -983,8 +839,7 @@ function App({ configFile }) { focus === "tabContentList" || focus === "tabContentDetails", }), - currentServerState?.status === "connected" && - currentServerClient + currentServerState?.status === "connected" && inspectorClient ? _jsxs(_Fragment, { children: [ activeTab === "resources" && @@ -992,7 +847,7 @@ function App({ configFile }) { ResourcesTab, { resources: currentServerState.resources, - client: currentServerClient, + client: inspectorClient, width: contentWidth, height: contentHeight, onCountChange: (count) => @@ -1020,7 +875,7 @@ function App({ configFile }) { PromptsTab, { prompts: currentServerState.prompts, - client: currentServerClient, + client: inspectorClient, width: contentWidth, height: contentHeight, onCountChange: (count) => @@ -1048,7 +903,7 @@ function App({ configFile }) { ToolsTab, { tools: currentServerState.tools, - client: currentServerClient, + client: inspectorClient, width: contentWidth, height: contentHeight, onCountChange: (count) => @@ -1065,7 +920,7 @@ function App({ configFile }) { onTestTool: (tool) => setToolTestModal({ tool, - client: currentServerClient, + client: inspectorClient, }), onViewDetails: (tool) => setDetailsModal({ @@ -1079,7 +934,7 @@ function App({ configFile }) { activeTab === "messages" && _jsx(HistoryTab, { serverName: selectedServer, - messages: currentServerMessages, + messages: inspectorMessages, width: contentWidth, height: contentHeight, onCountChange: (count) => @@ -1113,8 +968,8 @@ function App({ configFile }) { }), activeTab === "logging" && _jsx(NotificationsTab, { - client: currentServerClient, - stderrLogs: currentServerState?.stderrLogs || [], + client: inspectorClient, + stderrLogs: inspectorStderrLogs, width: contentWidth, height: contentHeight, onCountChange: (count) => diff --git a/tui/build/src/components/InfoTab.js b/tui/build/src/components/InfoTab.js index 65c990ce3..7cc23c62a 100644 --- a/tui/build/src/components/InfoTab.js +++ b/tui/build/src/components/InfoTab.js @@ -126,7 +126,8 @@ export function InfoTab({ children: _jsxs(Text, { dimColor: true, children: [ - "Env: ", + "Env:", + " ", Object.entries(serverConfig.env) .map(([k, v]) => `${k}=${v}`) .join(", "), @@ -162,7 +163,8 @@ export function InfoTab({ children: _jsxs(Text, { dimColor: true, children: [ - "Headers: ", + "Headers:", + " ", Object.entries( serverConfig.headers, ) @@ -191,7 +193,8 @@ export function InfoTab({ children: _jsxs(Text, { dimColor: true, children: [ - "Headers: ", + "Headers:", + " ", Object.entries( serverConfig.headers, ) diff --git a/tui/build/src/components/NotificationsTab.js b/tui/build/src/components/NotificationsTab.js index 3f3e91d98..77ed842fe 100644 --- a/tui/build/src/components/NotificationsTab.js +++ b/tui/build/src/components/NotificationsTab.js @@ -77,12 +77,7 @@ export function NotificationsTab({ children: [ _jsxs(Text, { dimColor: true, - children: [ - "[", - log.timestamp.toLocaleTimeString(), - "]", - " ", - ], + children: ["[", log.timestamp.toLocaleTimeString(), "] "], }), _jsx(Text, { color: "red", children: log.message }), ], diff --git a/tui/build/src/components/PromptsTab.js b/tui/build/src/components/PromptsTab.js index 63803026a..ec3aad67c 100644 --- a/tui/build/src/components/PromptsTab.js +++ b/tui/build/src/components/PromptsTab.js @@ -195,7 +195,8 @@ export function PromptsTab({ children: [ "- ", arg.name, - ": ", + ":", + " ", arg.description || arg.type || "string", ], }), diff --git a/tui/build/src/hooks/useInspectorClient.js b/tui/build/src/hooks/useInspectorClient.js new file mode 100644 index 000000000..003862bea --- /dev/null +++ b/tui/build/src/hooks/useInspectorClient.js @@ -0,0 +1,136 @@ +import { useState, useEffect, useCallback } from "react"; +/** + * React hook that subscribes to InspectorClient events and provides reactive state + */ +export function useInspectorClient(inspectorClient) { + const [status, setStatus] = useState( + inspectorClient?.getStatus() ?? "disconnected", + ); + const [messages, setMessages] = useState( + inspectorClient?.getMessages() ?? [], + ); + const [stderrLogs, setStderrLogs] = useState( + inspectorClient?.getStderrLogs() ?? [], + ); + const [tools, setTools] = useState(inspectorClient?.getTools() ?? []); + const [resources, setResources] = useState( + inspectorClient?.getResources() ?? [], + ); + const [prompts, setPrompts] = useState(inspectorClient?.getPrompts() ?? []); + const [capabilities, setCapabilities] = useState( + inspectorClient?.getCapabilities(), + ); + const [serverInfo, setServerInfo] = useState( + inspectorClient?.getServerInfo(), + ); + const [instructions, setInstructions] = useState( + inspectorClient?.getInstructions(), + ); + // Subscribe to all InspectorClient events + useEffect(() => { + if (!inspectorClient) { + setStatus("disconnected"); + setMessages([]); + setStderrLogs([]); + setTools([]); + setResources([]); + setPrompts([]); + setCapabilities(undefined); + setServerInfo(undefined); + setInstructions(undefined); + return; + } + // Initial state + setStatus(inspectorClient.getStatus()); + setMessages(inspectorClient.getMessages()); + setStderrLogs(inspectorClient.getStderrLogs()); + setTools(inspectorClient.getTools()); + setResources(inspectorClient.getResources()); + setPrompts(inspectorClient.getPrompts()); + setCapabilities(inspectorClient.getCapabilities()); + setServerInfo(inspectorClient.getServerInfo()); + setInstructions(inspectorClient.getInstructions()); + // Event handlers + const onStatusChange = (newStatus) => { + setStatus(newStatus); + }; + const onMessagesChange = () => { + setMessages(inspectorClient.getMessages()); + }; + const onStderrLogsChange = () => { + setStderrLogs(inspectorClient.getStderrLogs()); + }; + const onToolsChange = (newTools) => { + setTools(newTools); + }; + const onResourcesChange = (newResources) => { + setResources(newResources); + }; + const onPromptsChange = (newPrompts) => { + setPrompts(newPrompts); + }; + const onCapabilitiesChange = (newCapabilities) => { + setCapabilities(newCapabilities); + }; + const onServerInfoChange = (newServerInfo) => { + setServerInfo(newServerInfo); + }; + const onInstructionsChange = (newInstructions) => { + setInstructions(newInstructions); + }; + // Subscribe to events + inspectorClient.on("statusChange", onStatusChange); + inspectorClient.on("messagesChange", onMessagesChange); + inspectorClient.on("stderrLogsChange", onStderrLogsChange); + inspectorClient.on("toolsChange", onToolsChange); + inspectorClient.on("resourcesChange", onResourcesChange); + inspectorClient.on("promptsChange", onPromptsChange); + inspectorClient.on("capabilitiesChange", onCapabilitiesChange); + inspectorClient.on("serverInfoChange", onServerInfoChange); + inspectorClient.on("instructionsChange", onInstructionsChange); + // Cleanup + return () => { + inspectorClient.off("statusChange", onStatusChange); + inspectorClient.off("messagesChange", onMessagesChange); + inspectorClient.off("stderrLogsChange", onStderrLogsChange); + inspectorClient.off("toolsChange", onToolsChange); + inspectorClient.off("resourcesChange", onResourcesChange); + inspectorClient.off("promptsChange", onPromptsChange); + inspectorClient.off("capabilitiesChange", onCapabilitiesChange); + inspectorClient.off("serverInfoChange", onServerInfoChange); + inspectorClient.off("instructionsChange", onInstructionsChange); + }; + }, [inspectorClient]); + const connect = useCallback(async () => { + if (!inspectorClient) return; + await inspectorClient.connect(); + }, [inspectorClient]); + const disconnect = useCallback(async () => { + if (!inspectorClient) return; + await inspectorClient.disconnect(); + }, [inspectorClient]); + const clearMessages = useCallback(() => { + if (!inspectorClient) return; + inspectorClient.clearMessages(); + }, [inspectorClient]); + const clearStderrLogs = useCallback(() => { + if (!inspectorClient) return; + inspectorClient.clearStderrLogs(); + }, [inspectorClient]); + return { + status, + messages, + stderrLogs, + tools, + resources, + prompts, + capabilities, + serverInfo, + instructions, + client: inspectorClient?.getClient() ?? null, + connect, + disconnect, + clearMessages, + clearStderrLogs, + }; +} diff --git a/tui/build/src/hooks/useMCPClient.js b/tui/build/src/hooks/useMCPClient.js index ee3cf37c3..7bf30e99b 100644 --- a/tui/build/src/hooks/useMCPClient.js +++ b/tui/build/src/hooks/useMCPClient.js @@ -1,79 +1,7 @@ import { useState, useRef, useCallback } from "react"; import { Client } from "@modelcontextprotocol/sdk/client/index.js"; import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; -// Proxy Transport that intercepts all messages for logging/tracking -class LoggingProxyTransport { - baseTransport; - callbacks; - constructor(baseTransport, callbacks) { - this.baseTransport = baseTransport; - this.callbacks = callbacks; - } - async start() { - return this.baseTransport.start(); - } - async send(message, options) { - // Track outgoing requests (only requests have a method and are sent by the client) - if ("method" in message && "id" in message) { - this.callbacks.trackRequest?.(message); - } - return this.baseTransport.send(message, options); - } - async close() { - return this.baseTransport.close(); - } - get onclose() { - return this.baseTransport.onclose; - } - set onclose(handler) { - this.baseTransport.onclose = handler; - } - get onerror() { - return this.baseTransport.onerror; - } - set onerror(handler) { - this.baseTransport.onerror = handler; - } - get onmessage() { - return this.baseTransport.onmessage; - } - set onmessage(handler) { - if (handler) { - // Wrap the handler to track incoming messages - this.baseTransport.onmessage = (message, extra) => { - // Track incoming messages - if ( - "id" in message && - message.id !== null && - message.id !== undefined - ) { - // Check if it's a response (has 'result' or 'error' property) - if ("result" in message || "error" in message) { - this.callbacks.trackResponse?.(message); - } else if ("method" in message) { - // This is a request coming from the server - this.callbacks.trackRequest?.(message); - } - } else if ("method" in message) { - // Notification (no ID, has method) - this.callbacks.trackNotification?.(message); - } - // Call the original handler - handler(message, extra); - }; - } else { - this.baseTransport.onmessage = undefined; - } - } - get sessionId() { - return this.baseTransport.sessionId; - } - get setProtocolVersion() { - return this.baseTransport.setProtocolVersion; - } -} -// Export LoggingProxyTransport for use in other hooks -export { LoggingProxyTransport }; +import { MessageTrackingTransport } from "../utils/messageTrackingTransport.js"; export function useMCPClient(serverName, config, messageTracking) { const [connection, setConnection] = useState(null); const clientRef = useRef(null); @@ -116,9 +44,12 @@ export function useMCPClient(serverName, config, messageTracking) { args: stdioConfig.args || [], env: stdioConfig.env, }); - // Wrap with proxy transport if message tracking is enabled + // Wrap with message tracking transport if message tracking is enabled const transport = messageTrackingRef.current - ? new LoggingProxyTransport(baseTransport, messageTrackingRef.current) + ? new MessageTrackingTransport( + baseTransport, + messageTrackingRef.current, + ) : baseTransport; const client = new Client( { diff --git a/tui/build/src/utils/inspectorClient.js b/tui/build/src/utils/inspectorClient.js new file mode 100644 index 000000000..3f89a442d --- /dev/null +++ b/tui/build/src/utils/inspectorClient.js @@ -0,0 +1,332 @@ +import { createTransport } from "./transport.js"; +import { createClient } from "./client.js"; +import { MessageTrackingTransport } from "./messageTrackingTransport.js"; +import { EventEmitter } from "events"; +/** + * InspectorClient wraps an MCP Client and provides: + * - Message tracking and storage + * - Stderr log tracking and storage (for stdio transports) + * - Event emitter interface for React hooks + * - Access to client functionality (prompts, resources, tools) + */ +export class InspectorClient extends EventEmitter { + transportConfig; + client = null; + transport = null; + baseTransport = null; + messages = []; + stderrLogs = []; + maxMessages; + maxStderrLogEvents; + status = "disconnected"; + // Server data + tools = []; + resources = []; + prompts = []; + capabilities; + serverInfo; + instructions; + constructor(transportConfig, options = {}) { + super(); + this.transportConfig = transportConfig; + this.maxMessages = options.maxMessages ?? 1000; + this.maxStderrLogEvents = options.maxStderrLogEvents ?? 1000; + // Set up message tracking callbacks + const messageTracking = { + trackRequest: (message) => { + const entry = { + id: `${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "request", + message, + }; + this.addMessage(entry); + }, + trackResponse: (message) => { + const messageId = message.id; + // Find the matching request by message ID + const requestIndex = this.messages.findIndex( + (e) => + e.direction === "request" && + "id" in e.message && + e.message.id === messageId, + ); + if (requestIndex !== -1) { + // Update the request entry with the response + this.updateMessageResponse(requestIndex, message); + } else { + // No matching request found, create orphaned response entry + const entry = { + id: `${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "response", + message, + }; + this.addMessage(entry); + } + }, + trackNotification: (message) => { + const entry = { + id: `${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "notification", + message, + }; + this.addMessage(entry); + }, + }; + // Create transport with stderr logging if needed + const transportOptions = { + pipeStderr: options.pipeStderr ?? false, + onStderr: (entry) => { + this.addStderrLog(entry); + }, + }; + const { transport: baseTransport } = createTransport( + transportConfig, + transportOptions, + ); + // Store base transport for event listeners (always listen to actual transport, not wrapper) + this.baseTransport = baseTransport; + // Wrap with MessageTrackingTransport if we're tracking messages + this.transport = + this.maxMessages > 0 + ? new MessageTrackingTransport(baseTransport, messageTracking) + : baseTransport; + // Set up transport event listeners on base transport to track disconnections + this.baseTransport.onclose = () => { + if (this.status !== "disconnected") { + this.status = "disconnected"; + this.emit("statusChange", this.status); + this.emit("disconnect"); + } + }; + this.baseTransport.onerror = (error) => { + this.status = "error"; + this.emit("statusChange", this.status); + this.emit("error", error); + }; + // Create client + this.client = createClient(this.transport); + } + /** + * Connect to the MCP server + */ + async connect() { + if (!this.client || !this.transport) { + throw new Error("Client or transport not initialized"); + } + // If already connected, return early + if (this.status === "connected") { + return; + } + try { + this.status = "connecting"; + this.emit("statusChange", this.status); + await this.client.connect(this.transport); + this.status = "connected"; + this.emit("statusChange", this.status); + this.emit("connect"); + // Auto-fetch server data on connect + await this.fetchServerData(); + } catch (error) { + this.status = "error"; + this.emit("statusChange", this.status); + this.emit("error", error); + throw error; + } + } + /** + * Disconnect from the MCP server + */ + async disconnect() { + if (this.client) { + try { + await this.client.close(); + } catch (error) { + // Ignore errors on close + } + } + // Update status - transport onclose handler will also fire, but we update here too + if (this.status !== "disconnected") { + this.status = "disconnected"; + this.emit("statusChange", this.status); + this.emit("disconnect"); + } + } + /** + * Get the underlying MCP Client + */ + getClient() { + if (!this.client) { + throw new Error("Client not initialized"); + } + return this.client; + } + /** + * Get all messages + */ + getMessages() { + return [...this.messages]; + } + /** + * Get all stderr logs + */ + getStderrLogs() { + return [...this.stderrLogs]; + } + /** + * Clear all messages + */ + clearMessages() { + this.messages = []; + this.emit("messagesChange"); + } + /** + * Clear all stderr logs + */ + clearStderrLogs() { + this.stderrLogs = []; + this.emit("stderrLogsChange"); + } + /** + * Get the current connection status + */ + getStatus() { + return this.status; + } + /** + * Get the MCP server configuration used to create this client + */ + getTransportConfig() { + return this.transportConfig; + } + /** + * Get all tools + */ + getTools() { + return [...this.tools]; + } + /** + * Get all resources + */ + getResources() { + return [...this.resources]; + } + /** + * Get all prompts + */ + getPrompts() { + return [...this.prompts]; + } + /** + * Get server capabilities + */ + getCapabilities() { + return this.capabilities; + } + /** + * Get server info (name, version) + */ + getServerInfo() { + return this.serverInfo; + } + /** + * Get server instructions + */ + getInstructions() { + return this.instructions; + } + /** + * Fetch server data (capabilities, tools, resources, prompts, serverInfo, instructions) + * Called automatically on connect, but can be called manually if needed. + * TODO: Add support for listChanged notifications to auto-refresh when server data changes + */ + async fetchServerData() { + if (!this.client) { + return; + } + try { + // Get server capabilities + this.capabilities = this.client.getServerCapabilities(); + this.emit("capabilitiesChange", this.capabilities); + // Get server info (name, version) and instructions + this.serverInfo = this.client.getServerVersion(); + this.instructions = this.client.getInstructions(); + this.emit("serverInfoChange", this.serverInfo); + if (this.instructions !== undefined) { + this.emit("instructionsChange", this.instructions); + } + // Query resources, prompts, and tools based on capabilities + if (this.capabilities?.resources) { + try { + const result = await this.client.listResources(); + this.resources = result.resources || []; + this.emit("resourcesChange", this.resources); + } catch (err) { + // Ignore errors, just leave empty + this.resources = []; + this.emit("resourcesChange", this.resources); + } + } + if (this.capabilities?.prompts) { + try { + const result = await this.client.listPrompts(); + this.prompts = result.prompts || []; + this.emit("promptsChange", this.prompts); + } catch (err) { + // Ignore errors, just leave empty + this.prompts = []; + this.emit("promptsChange", this.prompts); + } + } + if (this.capabilities?.tools) { + try { + const result = await this.client.listTools(); + this.tools = result.tools || []; + this.emit("toolsChange", this.tools); + } catch (err) { + // Ignore errors, just leave empty + this.tools = []; + this.emit("toolsChange", this.tools); + } + } + } catch (error) { + // If fetching fails, we still consider the connection successful + // but log the error + this.emit("error", error); + } + } + addMessage(entry) { + if (this.maxMessages > 0 && this.messages.length >= this.maxMessages) { + // Remove oldest message + this.messages.shift(); + } + this.messages.push(entry); + this.emit("message", entry); + this.emit("messagesChange"); + } + updateMessageResponse(requestIndex, response) { + const requestEntry = this.messages[requestIndex]; + const duration = Date.now() - requestEntry.timestamp.getTime(); + this.messages[requestIndex] = { + ...requestEntry, + response, + duration, + }; + this.emit("message", this.messages[requestIndex]); + this.emit("messagesChange"); + } + addStderrLog(entry) { + if ( + this.maxStderrLogEvents > 0 && + this.stderrLogs.length >= this.maxStderrLogEvents + ) { + // Remove oldest stderr log + this.stderrLogs.shift(); + } + this.stderrLogs.push(entry); + this.emit("stderrLog", entry); + this.emit("stderrLogsChange"); + } +} diff --git a/tui/build/src/utils/messageTrackingTransport.js b/tui/build/src/utils/messageTrackingTransport.js new file mode 100644 index 000000000..2d6966a0e --- /dev/null +++ b/tui/build/src/utils/messageTrackingTransport.js @@ -0,0 +1,71 @@ +// Transport wrapper that intercepts all messages for tracking +export class MessageTrackingTransport { + baseTransport; + callbacks; + constructor(baseTransport, callbacks) { + this.baseTransport = baseTransport; + this.callbacks = callbacks; + } + async start() { + return this.baseTransport.start(); + } + async send(message, options) { + // Track outgoing requests (only requests have a method and are sent by the client) + if ("method" in message && "id" in message) { + this.callbacks.trackRequest?.(message); + } + return this.baseTransport.send(message, options); + } + async close() { + return this.baseTransport.close(); + } + get onclose() { + return this.baseTransport.onclose; + } + set onclose(handler) { + this.baseTransport.onclose = handler; + } + get onerror() { + return this.baseTransport.onerror; + } + set onerror(handler) { + this.baseTransport.onerror = handler; + } + get onmessage() { + return this.baseTransport.onmessage; + } + set onmessage(handler) { + if (handler) { + // Wrap the handler to track incoming messages + this.baseTransport.onmessage = (message, extra) => { + // Track incoming messages + if ( + "id" in message && + message.id !== null && + message.id !== undefined + ) { + // Check if it's a response (has 'result' or 'error' property) + if ("result" in message || "error" in message) { + this.callbacks.trackResponse?.(message); + } else if ("method" in message) { + // This is a request coming from the server + this.callbacks.trackRequest?.(message); + } + } else if ("method" in message) { + // Notification (no ID, has method) + this.callbacks.trackNotification?.(message); + } + // Call the original handler + handler(message, extra); + }; + } else { + this.baseTransport.onmessage = undefined; + } + } + get sessionId() { + return this.baseTransport.sessionId; + } + get setProtocolVersion() { + return this.baseTransport.setProtocolVersion; + } +} diff --git a/tui/build/tui.js b/tui/build/tui.js index a5b55f261..c99cf9f22 100644 --- a/tui/build/tui.js +++ b/tui/build/tui.js @@ -4,7 +4,6 @@ import { render } from "ink"; import App from "./src/App.js"; export async function runTui() { const args = process.argv.slice(2); - // TUI mode const configFile = args[0]; if (!configFile) { console.error("Usage: mcp-inspector-tui "); diff --git a/tui/src/App.tsx b/tui/src/App.tsx index 3779ed8f6..c2ac6cfec 100644 --- a/tui/src/App.tsx +++ b/tui/src/App.tsx @@ -3,18 +3,11 @@ import { Box, Text, useInput, useApp, type Key } from "ink"; import { readFileSync } from "fs"; import { fileURLToPath } from "url"; import { dirname, join } from "path"; -import type { - MCPConfig, - ServerState, - MCPServerConfig, - StdioServerConfig, - SseServerConfig, - StreamableHttpServerConfig, -} from "./types.js"; +import type { MCPServerConfig, MessageEntry } from "./types.js"; import { loadMcpServersConfig } from "./utils/config.js"; import type { FocusArea } from "./types/focus.js"; -import { useMCPClient, LoggingProxyTransport } from "./hooks/useMCPClient.js"; -import { useMessageTracking } from "./hooks/useMessageTracking.js"; +import { InspectorClient } from "./utils/inspectorClient.js"; +import { useInspectorClient } from "./hooks/useInspectorClient.js"; import { Tabs, type TabType, tabs as tabList } from "./components/Tabs.js"; import { InfoTab } from "./components/InfoTab.js"; import { ResourcesTab } from "./components/ResourcesTab.js"; @@ -24,7 +17,6 @@ import { NotificationsTab } from "./components/NotificationsTab.js"; import { HistoryTab } from "./components/HistoryTab.js"; import { ToolTestModal } from "./components/ToolTestModal.js"; import { DetailsModal } from "./components/DetailsModal.js"; -import type { MessageEntry } from "./types/messages.js"; import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; import { createTransport, getServerType } from "./utils/transport.js"; import { createClient } from "./utils/client.js"; @@ -88,22 +80,10 @@ function App({ configFile }: AppProps) { content: React.ReactNode; } | null>(null); - // Server state management - store state for all servers - const [serverStates, setServerStates] = useState>( - {}, - ); - const [serverClients, setServerClients] = useState< - Record + // InspectorClient instances for each server + const [inspectorClients, setInspectorClients] = useState< + Record >({}); - - // Message tracking - const { - history: messageHistory, - trackRequest, - trackResponse, - trackNotification, - clearHistory, - } = useMessageTracking(); const [dimensions, setDimensions] = useState({ width: process.stdout.columns || 80, height: process.stdout.rows || 24, @@ -142,287 +122,123 @@ function App({ configFile }: AppProps) { ? mcpConfig.mcpServers[selectedServer] : null; - // Preselect the first server on mount - useEffect(() => { - if (serverNames.length > 0 && selectedServer === null) { - setSelectedServer(serverNames[0]); - } - // eslint-disable-next-line react-hooks/exhaustive-deps - }, []); - - // Initialize server states for all configured servers on mount + // Create InspectorClient instances for each server on mount useEffect(() => { - const initialStates: Record = {}; + const newClients: Record = {}; for (const serverName of serverNames) { - if (!(serverName in serverStates)) { - initialStates[serverName] = { - status: "disconnected", - error: null, - capabilities: {}, - serverInfo: undefined, - instructions: undefined, - resources: [], - prompts: [], - tools: [], - stderrLogs: [], - }; + if (!(serverName in inspectorClients)) { + const serverConfig = mcpConfig.mcpServers[serverName]; + newClients[serverName] = new InspectorClient(serverConfig, { + maxMessages: 1000, + maxStderrLogEvents: 1000, + pipeStderr: true, + }); } } - if (Object.keys(initialStates).length > 0) { - setServerStates((prev) => ({ ...prev, ...initialStates })); + if (Object.keys(newClients).length > 0) { + setInspectorClients((prev) => ({ ...prev, ...newClients })); } // eslint-disable-next-line react-hooks/exhaustive-deps }, []); - // Memoize message tracking callbacks to prevent unnecessary re-renders - const messageTracking = useMemo(() => { - if (!selectedServer) return undefined; - return { - trackRequest: (msg: any) => trackRequest(selectedServer, msg), - trackResponse: (msg: any) => trackResponse(selectedServer, msg), - trackNotification: (msg: any) => trackNotification(selectedServer, msg), + // Cleanup: disconnect all clients on unmount + useEffect(() => { + return () => { + Object.values(inspectorClients).forEach((client) => { + client.disconnect().catch(() => { + // Ignore errors during cleanup + }); + }); }; - }, [selectedServer, trackRequest, trackResponse, trackNotification]); + }, [inspectorClients]); - // Get client for selected server (for connection management) - const { - connection, - connect: connectClient, - disconnect: disconnectClient, - } = useMCPClient(selectedServer, selectedServerConfig, messageTracking); - - // Helper function to create the appropriate transport with stderr logging - const createTransportWithLogging = useCallback( - (config: MCPServerConfig, serverName: string) => { - return createTransport(config, { - pipeStderr: true, - onStderr: (entry) => { - setServerStates((prev) => { - const existingState = prev[serverName]; - if (!existingState) { - // Initialize state if it doesn't exist yet - return { - ...prev, - [serverName]: { - status: "connecting" as const, - error: null, - capabilities: {}, - serverInfo: undefined, - instructions: undefined, - resources: [], - prompts: [], - tools: [], - stderrLogs: [entry], - }, - }; - } + // Preselect the first server on mount + useEffect(() => { + if (serverNames.length > 0 && selectedServer === null) { + setSelectedServer(serverNames[0]); + } + // eslint-disable-next-line react-hooks/exhaustive-deps + }, []); - return { - ...prev, - [serverName]: { - ...existingState, - stderrLogs: [...(existingState.stderrLogs || []), entry].slice( - -1000, - ), // Keep last 1000 log entries - }, - }; - }); - }, - }); - }, - [], + // Get InspectorClient for selected server + const selectedInspectorClient = useMemo( + () => (selectedServer ? inspectorClients[selectedServer] : null), + [selectedServer, inspectorClients], ); - // Connect handler - connects, gets capabilities, and queries resources/prompts/tools + // Use the hook to get reactive state from InspectorClient + const { + status: inspectorStatus, + messages: inspectorMessages, + stderrLogs: inspectorStderrLogs, + tools: inspectorTools, + resources: inspectorResources, + prompts: inspectorPrompts, + capabilities: inspectorCapabilities, + serverInfo: inspectorServerInfo, + instructions: inspectorInstructions, + client: inspectorClient, + connect: connectInspector, + disconnect: disconnectInspector, + clearMessages: clearInspectorMessages, + clearStderrLogs: clearInspectorStderrLogs, + } = useInspectorClient(selectedInspectorClient); + + // Connect handler - InspectorClient now handles fetching server data automatically const handleConnect = useCallback(async () => { - if (!selectedServer || !selectedServerConfig) return; - - // Capture server name immediately to avoid closure issues - const serverName = selectedServer; - const serverConfig = selectedServerConfig; - - // Clear all data when connecting/reconnecting to start fresh - clearHistory(serverName); - - // Clear stderr logs BEFORE connecting - setServerStates((prev) => ({ - ...prev, - [serverName]: { - ...(prev[serverName] || { - status: "disconnected" as const, - error: null, - capabilities: {}, - resources: [], - prompts: [], - tools: [], - }), - status: "connecting" as const, - stderrLogs: [], // Clear logs before connecting - }, - })); - - // Create the appropriate transport with stderr logging - const { transport: baseTransport } = createTransportWithLogging( - serverConfig, - serverName, - ); - - // Wrap with proxy transport if message tracking is enabled - const transport = messageTracking - ? new LoggingProxyTransport(baseTransport, messageTracking) - : baseTransport; + if (!selectedServer || !selectedInspectorClient) return; - const client = createClient(transport); + // Clear messages and stderr logs when connecting/reconnecting + clearInspectorMessages(); + clearInspectorStderrLogs(); try { - await client.connect(transport); - - // Store client immediately - setServerClients((prev) => ({ ...prev, [serverName]: client })); - - // Get server capabilities - const serverCapabilities = client.getServerCapabilities() || {}; - const capabilities = { - resources: !!serverCapabilities.resources, - prompts: !!serverCapabilities.prompts, - tools: !!serverCapabilities.tools, - }; - - // Get server info (name, version) and instructions - const serverVersion = client.getServerVersion(); - const serverInfo = serverVersion - ? { - name: serverVersion.name, - version: serverVersion.version, - } - : undefined; - const instructions = client.getInstructions(); - - // Query resources, prompts, and tools based on capabilities - let resources: any[] = []; - let prompts: any[] = []; - let tools: any[] = []; - - if (capabilities.resources) { - try { - const result = await client.listResources(); - resources = result.resources || []; - } catch (err) { - // Ignore errors, just leave empty - } - } - - if (capabilities.prompts) { - try { - const result = await client.listPrompts(); - prompts = result.prompts || []; - } catch (err) { - // Ignore errors, just leave empty - } - } - - if (capabilities.tools) { - try { - const result = await client.listTools(); - tools = result.tools || []; - } catch (err) { - // Ignore errors, just leave empty - } - } - - // Update server state - use captured serverName to ensure we update the correct server - // Preserve stderrLogs that were captured during connection (after we cleared them before connecting) - setServerStates((prev) => ({ - ...prev, - [serverName]: { - status: "connected" as const, - error: null, - capabilities, - serverInfo, - instructions, - resources, - prompts, - tools, - stderrLogs: prev[serverName]?.stderrLogs || [], // Preserve logs captured during connection - }, - })); + await connectInspector(); + // InspectorClient automatically fetches server data (capabilities, tools, resources, prompts, etc.) + // on connect, so we don't need to do anything here } catch (error) { - // Make sure we clean up the client on error - try { - await client.close(); - } catch (closeErr) { - // Ignore close errors - } - - setServerStates((prev) => ({ - ...prev, - [serverName]: { - ...(prev[serverName] || { - status: "disconnected" as const, - error: null, - capabilities: {}, - resources: [], - prompts: [], - tools: [], - }), - status: "error", - error: error instanceof Error ? error.message : "Unknown error", - }, - })); + // Error handling is done by InspectorClient and will be reflected in status } - }, [selectedServer, selectedServerConfig, messageTracking]); + }, [ + selectedServer, + selectedInspectorClient, + connectInspector, + clearInspectorMessages, + clearInspectorStderrLogs, + ]); // Disconnect handler const handleDisconnect = useCallback(async () => { if (!selectedServer) return; + await disconnectInspector(); + // InspectorClient will update status automatically, and data is preserved + }, [selectedServer, disconnectInspector]); - await disconnectClient(); - - setServerClients((prev) => { - const newClients = { ...prev }; - delete newClients[selectedServer]; - return newClients; - }); - - // Preserve all data when disconnecting - only change status - setServerStates((prev) => ({ - ...prev, - [selectedServer]: { - ...prev[selectedServer], - status: "disconnected", - error: null, - // Keep all existing data: capabilities, serverInfo, instructions, resources, prompts, tools, stderrLogs - }, - })); - - // Update tab counts based on preserved data - const preservedState = serverStates[selectedServer]; - if (preservedState) { - setTabCounts((prev) => ({ - ...prev, - resources: preservedState.resources?.length || 0, - prompts: preservedState.prompts?.length || 0, - tools: preservedState.tools?.length || 0, - messages: messageHistory[selectedServer]?.length || 0, - logging: preservedState.stderrLogs?.length || 0, - })); - } - }, [selectedServer, disconnectClient, serverStates, messageHistory]); - - const currentServerMessages = useMemo( - () => (selectedServer ? messageHistory[selectedServer] || [] : []), - [selectedServer, messageHistory], - ); - - const currentServerState = useMemo( - () => (selectedServer ? serverStates[selectedServer] || null : null), - [selectedServer, serverStates], - ); - - const currentServerClient = useMemo( - () => (selectedServer ? serverClients[selectedServer] || null : null), - [selectedServer, serverClients], - ); + // Build current server state from InspectorClient data + const currentServerState = useMemo(() => { + if (!selectedServer) return null; + return { + status: inspectorStatus, + error: null, // InspectorClient doesn't track error in state, only emits error events + capabilities: inspectorCapabilities, + serverInfo: inspectorServerInfo, + instructions: inspectorInstructions, + resources: inspectorResources, + prompts: inspectorPrompts, + tools: inspectorTools, + stderrLogs: inspectorStderrLogs, // InspectorClient manages this + }; + }, [ + selectedServer, + inspectorStatus, + inspectorCapabilities, + inspectorServerInfo, + inspectorInstructions, + inspectorResources, + inspectorPrompts, + inspectorTools, + inspectorStderrLogs, + ]); // Helper functions to render details modal content const renderResourceDetails = (resource: any) => ( @@ -582,30 +398,39 @@ function App({ configFile }: AppProps) { ); - // Update tab counts when selected server changes + // Update tab counts when selected server changes or InspectorClient state changes useEffect(() => { if (!selectedServer) { return; } - const serverState = serverStates[selectedServer]; - if (serverState?.status === "connected") { + if (inspectorStatus === "connected") { setTabCounts({ - resources: serverState.resources?.length || 0, - prompts: serverState.prompts?.length || 0, - tools: serverState.tools?.length || 0, - messages: messageHistory[selectedServer]?.length || 0, + resources: inspectorResources.length || 0, + prompts: inspectorPrompts.length || 0, + tools: inspectorTools.length || 0, + messages: inspectorMessages.length || 0, + logging: inspectorStderrLogs.length || 0, }); - } else if (serverState?.status !== "connecting") { + } else if (inspectorStatus !== "connecting") { // Reset counts for disconnected or error states setTabCounts({ resources: 0, prompts: 0, tools: 0, - messages: messageHistory[selectedServer]?.length || 0, + messages: inspectorMessages.length || 0, + logging: inspectorStderrLogs.length || 0, }); } - }, [selectedServer, serverStates, messageHistory]); + }, [ + selectedServer, + inspectorStatus, + inspectorResources, + inspectorPrompts, + inspectorTools, + inspectorMessages, + inspectorStderrLogs, + ]); // Keep focus state consistent when switching tabs useEffect(() => { @@ -725,17 +550,14 @@ function App({ configFile }: AppProps) { // Accelerator keys for connect/disconnect (work from anywhere) if (selectedServer) { - const serverState = serverStates[selectedServer]; if ( input.toLowerCase() === "c" && - (serverState?.status === "disconnected" || - serverState?.status === "error") + (inspectorStatus === "disconnected" || inspectorStatus === "error") ) { handleConnect(); } else if ( input.toLowerCase() === "d" && - (serverState?.status === "connected" || - serverState?.status === "connecting") + (inspectorStatus === "connected" || inspectorStatus === "connecting") ) { handleDisconnect(); } @@ -949,14 +771,13 @@ function App({ configFile }: AppProps) { } /> )} - {currentServerState?.status === "connected" && - currentServerClient ? ( + {currentServerState?.status === "connected" && inspectorClient ? ( <> {activeTab === "resources" && ( @@ -982,7 +803,7 @@ function App({ configFile }: AppProps) { @@ -1008,7 +829,7 @@ function App({ configFile }: AppProps) { @@ -1022,7 +843,7 @@ function App({ configFile }: AppProps) { : null } onTestTool={(tool) => - setToolTestModal({ tool, client: currentServerClient }) + setToolTestModal({ tool, client: inspectorClient }) } onViewDetails={(tool) => setDetailsModal({ @@ -1036,7 +857,7 @@ function App({ configFile }: AppProps) { {activeTab === "messages" && ( @@ -1070,8 +891,8 @@ function App({ configFile }: AppProps) { )} {activeTab === "logging" && ( diff --git a/tui/src/components/HistoryTab.tsx b/tui/src/components/HistoryTab.tsx index 99a83f4a8..e25e0351a 100644 --- a/tui/src/components/HistoryTab.tsx +++ b/tui/src/components/HistoryTab.tsx @@ -1,7 +1,7 @@ import React, { useState, useMemo, useEffect, useRef } from "react"; import { Box, Text, useInput, type Key } from "ink"; import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; -import type { MessageEntry } from "../types/messages.js"; +import type { MessageEntry } from "../types.js"; interface HistoryTabProps { serverName: string | null; diff --git a/tui/src/hooks/useInspectorClient.ts b/tui/src/hooks/useInspectorClient.ts new file mode 100644 index 000000000..2e413c637 --- /dev/null +++ b/tui/src/hooks/useInspectorClient.ts @@ -0,0 +1,187 @@ +import { useState, useEffect, useCallback } from "react"; +import { InspectorClient } from "../utils/inspectorClient.js"; +import type { + ConnectionStatus, + StderrLogEntry, + MessageEntry, +} from "../types.js"; +import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; +import type { + ServerCapabilities, + Implementation, +} from "@modelcontextprotocol/sdk/types.js"; + +export interface UseInspectorClientResult { + status: ConnectionStatus; + messages: MessageEntry[]; + stderrLogs: StderrLogEntry[]; + tools: any[]; + resources: any[]; + prompts: any[]; + capabilities?: ServerCapabilities; + serverInfo?: Implementation; + instructions?: string; + client: Client | null; + connect: () => Promise; + disconnect: () => Promise; + clearMessages: () => void; + clearStderrLogs: () => void; +} + +/** + * React hook that subscribes to InspectorClient events and provides reactive state + */ +export function useInspectorClient( + inspectorClient: InspectorClient | null, +): UseInspectorClientResult { + const [status, setStatus] = useState( + inspectorClient?.getStatus() ?? "disconnected", + ); + const [messages, setMessages] = useState( + inspectorClient?.getMessages() ?? [], + ); + const [stderrLogs, setStderrLogs] = useState( + inspectorClient?.getStderrLogs() ?? [], + ); + const [tools, setTools] = useState(inspectorClient?.getTools() ?? []); + const [resources, setResources] = useState( + inspectorClient?.getResources() ?? [], + ); + const [prompts, setPrompts] = useState( + inspectorClient?.getPrompts() ?? [], + ); + const [capabilities, setCapabilities] = useState< + ServerCapabilities | undefined + >(inspectorClient?.getCapabilities()); + const [serverInfo, setServerInfo] = useState( + inspectorClient?.getServerInfo(), + ); + const [instructions, setInstructions] = useState( + inspectorClient?.getInstructions(), + ); + + // Subscribe to all InspectorClient events + useEffect(() => { + if (!inspectorClient) { + setStatus("disconnected"); + setMessages([]); + setStderrLogs([]); + setTools([]); + setResources([]); + setPrompts([]); + setCapabilities(undefined); + setServerInfo(undefined); + setInstructions(undefined); + return; + } + + // Initial state + setStatus(inspectorClient.getStatus()); + setMessages(inspectorClient.getMessages()); + setStderrLogs(inspectorClient.getStderrLogs()); + setTools(inspectorClient.getTools()); + setResources(inspectorClient.getResources()); + setPrompts(inspectorClient.getPrompts()); + setCapabilities(inspectorClient.getCapabilities()); + setServerInfo(inspectorClient.getServerInfo()); + setInstructions(inspectorClient.getInstructions()); + + // Event handlers + const onStatusChange = (newStatus: ConnectionStatus) => { + setStatus(newStatus); + }; + + const onMessagesChange = () => { + setMessages(inspectorClient.getMessages()); + }; + + const onStderrLogsChange = () => { + setStderrLogs(inspectorClient.getStderrLogs()); + }; + + const onToolsChange = (newTools: any[]) => { + setTools(newTools); + }; + + const onResourcesChange = (newResources: any[]) => { + setResources(newResources); + }; + + const onPromptsChange = (newPrompts: any[]) => { + setPrompts(newPrompts); + }; + + const onCapabilitiesChange = (newCapabilities?: ServerCapabilities) => { + setCapabilities(newCapabilities); + }; + + const onServerInfoChange = (newServerInfo?: Implementation) => { + setServerInfo(newServerInfo); + }; + + const onInstructionsChange = (newInstructions?: string) => { + setInstructions(newInstructions); + }; + + // Subscribe to events + inspectorClient.on("statusChange", onStatusChange); + inspectorClient.on("messagesChange", onMessagesChange); + inspectorClient.on("stderrLogsChange", onStderrLogsChange); + inspectorClient.on("toolsChange", onToolsChange); + inspectorClient.on("resourcesChange", onResourcesChange); + inspectorClient.on("promptsChange", onPromptsChange); + inspectorClient.on("capabilitiesChange", onCapabilitiesChange); + inspectorClient.on("serverInfoChange", onServerInfoChange); + inspectorClient.on("instructionsChange", onInstructionsChange); + + // Cleanup + return () => { + inspectorClient.off("statusChange", onStatusChange); + inspectorClient.off("messagesChange", onMessagesChange); + inspectorClient.off("stderrLogsChange", onStderrLogsChange); + inspectorClient.off("toolsChange", onToolsChange); + inspectorClient.off("resourcesChange", onResourcesChange); + inspectorClient.off("promptsChange", onPromptsChange); + inspectorClient.off("capabilitiesChange", onCapabilitiesChange); + inspectorClient.off("serverInfoChange", onServerInfoChange); + inspectorClient.off("instructionsChange", onInstructionsChange); + }; + }, [inspectorClient]); + + const connect = useCallback(async () => { + if (!inspectorClient) return; + await inspectorClient.connect(); + }, [inspectorClient]); + + const disconnect = useCallback(async () => { + if (!inspectorClient) return; + await inspectorClient.disconnect(); + }, [inspectorClient]); + + const clearMessages = useCallback(() => { + if (!inspectorClient) return; + inspectorClient.clearMessages(); + }, [inspectorClient]); + + const clearStderrLogs = useCallback(() => { + if (!inspectorClient) return; + inspectorClient.clearStderrLogs(); + }, [inspectorClient]); + + return { + status, + messages, + stderrLogs, + tools, + resources, + prompts, + capabilities, + serverInfo, + instructions, + client: inspectorClient?.getClient() ?? null, + connect, + disconnect, + clearMessages, + clearStderrLogs, + }; +} diff --git a/tui/src/hooks/useMCPClient.ts b/tui/src/hooks/useMCPClient.ts deleted file mode 100644 index 82843a5df..000000000 --- a/tui/src/hooks/useMCPClient.ts +++ /dev/null @@ -1,269 +0,0 @@ -import { useState, useRef, useCallback } from "react"; -import { Client } from "@modelcontextprotocol/sdk/client/index.js"; -import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; -import type { MCPServerConfig } from "../types.js"; -import type { - Transport, - TransportSendOptions, -} from "@modelcontextprotocol/sdk/shared/transport.js"; -import type { - JSONRPCMessage, - MessageExtraInfo, -} from "@modelcontextprotocol/sdk/types.js"; -import type { - JSONRPCRequest, - JSONRPCNotification, - JSONRPCResultResponse, - JSONRPCErrorResponse, -} from "@modelcontextprotocol/sdk/types.js"; - -export type ConnectionStatus = - | "disconnected" - | "connecting" - | "connected" - | "error"; - -export interface ServerConnection { - name: string; - config: MCPServerConfig; - client: Client | null; - status: ConnectionStatus; - error: string | null; -} - -export interface MessageTrackingCallbacks { - trackRequest?: (message: JSONRPCRequest) => void; - trackResponse?: ( - message: JSONRPCResultResponse | JSONRPCErrorResponse, - ) => void; - trackNotification?: (message: JSONRPCNotification) => void; -} - -// Proxy Transport that intercepts all messages for logging/tracking -class LoggingProxyTransport implements Transport { - constructor( - private baseTransport: Transport, - private callbacks: MessageTrackingCallbacks, - ) {} - - async start(): Promise { - return this.baseTransport.start(); - } - - async send( - message: JSONRPCMessage, - options?: TransportSendOptions, - ): Promise { - // Track outgoing requests (only requests have a method and are sent by the client) - if ("method" in message && "id" in message) { - this.callbacks.trackRequest?.(message as JSONRPCRequest); - } - return this.baseTransport.send(message, options); - } - - async close(): Promise { - return this.baseTransport.close(); - } - - get onclose(): (() => void) | undefined { - return this.baseTransport.onclose; - } - - set onclose(handler: (() => void) | undefined) { - this.baseTransport.onclose = handler; - } - - get onerror(): ((error: Error) => void) | undefined { - return this.baseTransport.onerror; - } - - set onerror(handler: ((error: Error) => void) | undefined) { - this.baseTransport.onerror = handler; - } - - get onmessage(): - | ((message: T, extra?: MessageExtraInfo) => void) - | undefined { - return this.baseTransport.onmessage; - } - - set onmessage( - handler: - | (( - message: T, - extra?: MessageExtraInfo, - ) => void) - | undefined, - ) { - if (handler) { - // Wrap the handler to track incoming messages - this.baseTransport.onmessage = ( - message: T, - extra?: MessageExtraInfo, - ) => { - // Track incoming messages - if ( - "id" in message && - message.id !== null && - message.id !== undefined - ) { - // Check if it's a response (has 'result' or 'error' property) - if ("result" in message || "error" in message) { - this.callbacks.trackResponse?.( - message as JSONRPCResultResponse | JSONRPCErrorResponse, - ); - } else if ("method" in message) { - // This is a request coming from the server - this.callbacks.trackRequest?.(message as JSONRPCRequest); - } - } else if ("method" in message) { - // Notification (no ID, has method) - this.callbacks.trackNotification?.(message as JSONRPCNotification); - } - // Call the original handler - handler(message, extra); - }; - } else { - this.baseTransport.onmessage = undefined; - } - } - - get sessionId(): string | undefined { - return this.baseTransport.sessionId; - } - - get setProtocolVersion(): ((version: string) => void) | undefined { - return this.baseTransport.setProtocolVersion; - } -} - -// Export LoggingProxyTransport for use in other hooks -export { LoggingProxyTransport }; - -export function useMCPClient( - serverName: string | null, - config: MCPServerConfig | null, - messageTracking?: MessageTrackingCallbacks, -) { - const [connection, setConnection] = useState(null); - const clientRef = useRef(null); - const messageTrackingRef = useRef(messageTracking); - const isMountedRef = useRef(true); - - // Update ref when messageTracking changes - if (messageTracking) { - messageTrackingRef.current = messageTracking; - } - - const connect = useCallback(async (): Promise => { - if (!serverName || !config) { - return null; - } - - // If already connected, return existing client - if (clientRef.current && connection?.status === "connected") { - return clientRef.current; - } - - setConnection({ - name: serverName, - config, - client: null, - status: "connecting", - error: null, - }); - - try { - // Only support stdio in useMCPClient hook (legacy support) - // For full transport support, use the transport creation in App.tsx - if ( - "type" in config && - config.type !== "stdio" && - config.type !== undefined - ) { - throw new Error( - `Transport type ${config.type} not supported in useMCPClient hook`, - ); - } - const stdioConfig = config as any; - const baseTransport = new StdioClientTransport({ - command: stdioConfig.command, - args: stdioConfig.args || [], - env: stdioConfig.env, - }); - - // Wrap with proxy transport if message tracking is enabled - const transport = messageTrackingRef.current - ? new LoggingProxyTransport(baseTransport, messageTrackingRef.current) - : baseTransport; - - const client = new Client( - { - name: "mcp-inspect", - version: "1.0.0", - }, - { - capabilities: {}, - }, - ); - - await client.connect(transport); - - if (!isMountedRef.current) { - await client.close(); - return null; - } - - clientRef.current = client; - setConnection({ - name: serverName, - config, - client, - status: "connected", - error: null, - }); - - return client; - } catch (error) { - if (!isMountedRef.current) return null; - - setConnection({ - name: serverName, - config, - client: null, - status: "error", - error: error instanceof Error ? error.message : "Unknown error", - }); - return null; - } - }, [serverName, config, connection?.status]); - - const disconnect = useCallback(async () => { - if (clientRef.current) { - try { - await clientRef.current.close(); - } catch (error) { - // Ignore errors on close - } - clientRef.current = null; - } - - if (serverName && config) { - setConnection({ - name: serverName, - config, - client: null, - status: "disconnected", - error: null, - }); - } else { - setConnection(null); - } - }, [serverName, config]); - - return { - connection, - connect, - disconnect, - }; -} diff --git a/tui/src/hooks/useMessageTracking.ts b/tui/src/hooks/useMessageTracking.ts deleted file mode 100644 index b720c0a22..000000000 --- a/tui/src/hooks/useMessageTracking.ts +++ /dev/null @@ -1,171 +0,0 @@ -import { useState, useCallback, useRef } from "react"; -import type { - MessageEntry, - MessageHistory, - JSONRPCRequest, - JSONRPCNotification, - JSONRPCResultResponse, - JSONRPCErrorResponse, - JSONRPCMessage, -} from "../types/messages.js"; - -export function useMessageTracking() { - const [history, setHistory] = useState({}); - const pendingRequestsRef = useRef< - Map - >(new Map()); - - const trackRequest = useCallback( - (serverName: string, message: JSONRPCRequest) => { - const entry: MessageEntry = { - id: `${serverName}-${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "request", - message, - }; - - if ("id" in message && message.id !== null && message.id !== undefined) { - pendingRequestsRef.current.set(message.id, { - timestamp: entry.timestamp, - serverName, - }); - } - - setHistory((prev) => ({ - ...prev, - [serverName]: [...(prev[serverName] || []), entry], - })); - - return entry.id; - }, - [], - ); - - const trackResponse = useCallback( - ( - serverName: string, - message: JSONRPCResultResponse | JSONRPCErrorResponse, - ) => { - if (!("id" in message) || message.id === undefined) { - // Response without an ID (shouldn't happen, but handle it) - return; - } - - const entryId = message.id; - const pending = pendingRequestsRef.current.get(entryId); - - if (pending && pending.serverName === serverName) { - pendingRequestsRef.current.delete(entryId); - const duration = Date.now() - pending.timestamp.getTime(); - - setHistory((prev) => { - const serverHistory = prev[serverName] || []; - // Find the matching request by message ID - const requestIndex = serverHistory.findIndex( - (e) => - e.direction === "request" && - "id" in e.message && - e.message.id === entryId, - ); - - if (requestIndex !== -1) { - // Update the request entry with the response - const updatedHistory = [...serverHistory]; - updatedHistory[requestIndex] = { - ...updatedHistory[requestIndex], - response: message, - duration, - }; - return { ...prev, [serverName]: updatedHistory }; - } - - // If no matching request found, create a new entry - const newEntry: MessageEntry = { - id: `${serverName}-${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "response", - message, - duration: 0, - }; - return { - ...prev, - [serverName]: [...serverHistory, newEntry], - }; - }); - } else { - // Response without a matching request (might be from a different server or orphaned) - setHistory((prev) => { - const serverHistory = prev[serverName] || []; - // Check if there's a matching request in the history - const requestIndex = serverHistory.findIndex( - (e) => - e.direction === "request" && - "id" in e.message && - e.message.id === entryId, - ); - - if (requestIndex !== -1) { - // Update the request entry with the response - const updatedHistory = [...serverHistory]; - updatedHistory[requestIndex] = { - ...updatedHistory[requestIndex], - response: message, - }; - return { ...prev, [serverName]: updatedHistory }; - } - - // Create a new entry for orphaned response - const newEntry: MessageEntry = { - id: `${serverName}-${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "response", - message, - }; - return { - ...prev, - [serverName]: [...serverHistory, newEntry], - }; - }); - } - }, - [], - ); - - const trackNotification = useCallback( - (serverName: string, message: JSONRPCNotification) => { - const entry: MessageEntry = { - id: `${serverName}-${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "notification", - message, - }; - - setHistory((prev) => ({ - ...prev, - [serverName]: [...(prev[serverName] || []), entry], - })); - }, - [], - ); - - const clearHistory = useCallback((serverName?: string) => { - if (serverName) { - setHistory((prev) => { - const updated = { ...prev }; - delete updated[serverName]; - return updated; - }); - } else { - setHistory({}); - pendingRequestsRef.current.clear(); - } - }, []); - - return { - history, - trackRequest, - trackResponse, - trackNotification, - clearHistory, - }; -} diff --git a/tui/src/types.ts b/tui/src/types.ts index 00f405e21..0c3416ec6 100644 --- a/tui/src/types.ts +++ b/tui/src/types.ts @@ -44,18 +44,33 @@ export interface StderrLogEntry { message: string; } +import type { + ServerCapabilities, + Implementation, + JSONRPCRequest, + JSONRPCNotification, + JSONRPCResultResponse, + JSONRPCErrorResponse, +} from "@modelcontextprotocol/sdk/types.js"; + +export interface MessageEntry { + id: string; + timestamp: Date; + direction: "request" | "response" | "notification"; + message: + | JSONRPCRequest + | JSONRPCNotification + | JSONRPCResultResponse + | JSONRPCErrorResponse; + response?: JSONRPCResultResponse | JSONRPCErrorResponse; + duration?: number; // Time between request and response in ms +} + export interface ServerState { status: ConnectionStatus; error: string | null; - capabilities: { - resources?: boolean; - prompts?: boolean; - tools?: boolean; - }; - serverInfo?: { - name?: string; - version?: string; - }; + capabilities?: ServerCapabilities; + serverInfo?: Implementation; instructions?: string; resources: any[]; prompts: any[]; diff --git a/tui/src/types/messages.ts b/tui/src/types/messages.ts deleted file mode 100644 index 79f8e5bf0..000000000 --- a/tui/src/types/messages.ts +++ /dev/null @@ -1,32 +0,0 @@ -import type { - JSONRPCRequest, - JSONRPCNotification, - JSONRPCResultResponse, - JSONRPCErrorResponse, - JSONRPCMessage, -} from "@modelcontextprotocol/sdk/types.js"; - -export type { - JSONRPCRequest, - JSONRPCNotification, - JSONRPCResultResponse, - JSONRPCErrorResponse, - JSONRPCMessage, -}; - -export interface MessageEntry { - id: string; - timestamp: Date; - direction: "request" | "response" | "notification"; - message: - | JSONRPCRequest - | JSONRPCNotification - | JSONRPCResultResponse - | JSONRPCErrorResponse; - response?: JSONRPCResultResponse | JSONRPCErrorResponse; - duration?: number; // Time between request and response in ms -} - -export interface MessageHistory { - [serverName: string]: MessageEntry[]; -} diff --git a/tui/src/utils/inspectorClient.ts b/tui/src/utils/inspectorClient.ts new file mode 100644 index 000000000..a441524e1 --- /dev/null +++ b/tui/src/utils/inspectorClient.ts @@ -0,0 +1,411 @@ +import { Client } from "@modelcontextprotocol/sdk/client/index.js"; +import type { + MCPServerConfig, + StderrLogEntry, + ConnectionStatus, + MessageEntry, +} from "../types.js"; +import { createTransport, type CreateTransportOptions } from "./transport.js"; +import { createClient } from "./client.js"; +import { + MessageTrackingTransport, + type MessageTrackingCallbacks, +} from "./messageTrackingTransport.js"; +import type { + JSONRPCRequest, + JSONRPCNotification, + JSONRPCResultResponse, + JSONRPCErrorResponse, + ServerCapabilities, + Implementation, +} from "@modelcontextprotocol/sdk/types.js"; +import { EventEmitter } from "events"; + +export interface InspectorClientOptions { + /** + * Maximum number of messages to store (0 = unlimited, but not recommended) + */ + maxMessages?: number; + + /** + * Maximum number of stderr log entries to store (0 = unlimited, but not recommended) + */ + maxStderrLogEvents?: number; + + /** + * Whether to pipe stderr for stdio transports (default: true for TUI, false for CLI) + */ + pipeStderr?: boolean; +} + +/** + * InspectorClient wraps an MCP Client and provides: + * - Message tracking and storage + * - Stderr log tracking and storage (for stdio transports) + * - Event emitter interface for React hooks + * - Access to client functionality (prompts, resources, tools) + */ +export class InspectorClient extends EventEmitter { + private client: Client | null = null; + private transport: any = null; + private baseTransport: any = null; + private messages: MessageEntry[] = []; + private stderrLogs: StderrLogEntry[] = []; + private maxMessages: number; + private maxStderrLogEvents: number; + private status: ConnectionStatus = "disconnected"; + // Server data + private tools: any[] = []; + private resources: any[] = []; + private prompts: any[] = []; + private capabilities?: ServerCapabilities; + private serverInfo?: Implementation; + private instructions?: string; + + constructor( + private transportConfig: MCPServerConfig, + options: InspectorClientOptions = {}, + ) { + super(); + this.maxMessages = options.maxMessages ?? 1000; + this.maxStderrLogEvents = options.maxStderrLogEvents ?? 1000; + + // Set up message tracking callbacks + const messageTracking: MessageTrackingCallbacks = { + trackRequest: (message: JSONRPCRequest) => { + const entry: MessageEntry = { + id: `${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "request", + message, + }; + this.addMessage(entry); + }, + trackResponse: ( + message: JSONRPCResultResponse | JSONRPCErrorResponse, + ) => { + const messageId = message.id; + // Find the matching request by message ID + const requestIndex = this.messages.findIndex( + (e) => + e.direction === "request" && + "id" in e.message && + e.message.id === messageId, + ); + + if (requestIndex !== -1) { + // Update the request entry with the response + this.updateMessageResponse(requestIndex, message); + } else { + // No matching request found, create orphaned response entry + const entry: MessageEntry = { + id: `${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "response", + message, + }; + this.addMessage(entry); + } + }, + trackNotification: (message: JSONRPCNotification) => { + const entry: MessageEntry = { + id: `${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "notification", + message, + }; + this.addMessage(entry); + }, + }; + + // Create transport with stderr logging if needed + const transportOptions: CreateTransportOptions = { + pipeStderr: options.pipeStderr ?? false, + onStderr: (entry: StderrLogEntry) => { + this.addStderrLog(entry); + }, + }; + + const { transport: baseTransport } = createTransport( + transportConfig, + transportOptions, + ); + + // Store base transport for event listeners (always listen to actual transport, not wrapper) + this.baseTransport = baseTransport; + + // Wrap with MessageTrackingTransport if we're tracking messages + this.transport = + this.maxMessages > 0 + ? new MessageTrackingTransport(baseTransport, messageTracking) + : baseTransport; + + // Set up transport event listeners on base transport to track disconnections + this.baseTransport.onclose = () => { + if (this.status !== "disconnected") { + this.status = "disconnected"; + this.emit("statusChange", this.status); + this.emit("disconnect"); + } + }; + + this.baseTransport.onerror = (error: Error) => { + this.status = "error"; + this.emit("statusChange", this.status); + this.emit("error", error); + }; + + // Create client + this.client = createClient(this.transport); + } + + /** + * Connect to the MCP server + */ + async connect(): Promise { + if (!this.client || !this.transport) { + throw new Error("Client or transport not initialized"); + } + + // If already connected, return early + if (this.status === "connected") { + return; + } + + try { + this.status = "connecting"; + this.emit("statusChange", this.status); + await this.client.connect(this.transport); + this.status = "connected"; + this.emit("statusChange", this.status); + this.emit("connect"); + + // Auto-fetch server data on connect + await this.fetchServerData(); + } catch (error) { + this.status = "error"; + this.emit("statusChange", this.status); + this.emit("error", error); + throw error; + } + } + + /** + * Disconnect from the MCP server + */ + async disconnect(): Promise { + if (this.client) { + try { + await this.client.close(); + } catch (error) { + // Ignore errors on close + } + } + // Update status - transport onclose handler will also fire, but we update here too + if (this.status !== "disconnected") { + this.status = "disconnected"; + this.emit("statusChange", this.status); + this.emit("disconnect"); + } + } + + /** + * Get the underlying MCP Client + */ + getClient(): Client { + if (!this.client) { + throw new Error("Client not initialized"); + } + return this.client; + } + + /** + * Get all messages + */ + getMessages(): MessageEntry[] { + return [...this.messages]; + } + + /** + * Get all stderr logs + */ + getStderrLogs(): StderrLogEntry[] { + return [...this.stderrLogs]; + } + + /** + * Clear all messages + */ + clearMessages(): void { + this.messages = []; + this.emit("messagesChange"); + } + + /** + * Clear all stderr logs + */ + clearStderrLogs(): void { + this.stderrLogs = []; + this.emit("stderrLogsChange"); + } + + /** + * Get the current connection status + */ + getStatus(): ConnectionStatus { + return this.status; + } + + /** + * Get the MCP server configuration used to create this client + */ + getTransportConfig(): MCPServerConfig { + return this.transportConfig; + } + + /** + * Get all tools + */ + getTools(): any[] { + return [...this.tools]; + } + + /** + * Get all resources + */ + getResources(): any[] { + return [...this.resources]; + } + + /** + * Get all prompts + */ + getPrompts(): any[] { + return [...this.prompts]; + } + + /** + * Get server capabilities + */ + getCapabilities(): ServerCapabilities | undefined { + return this.capabilities; + } + + /** + * Get server info (name, version) + */ + getServerInfo(): Implementation | undefined { + return this.serverInfo; + } + + /** + * Get server instructions + */ + getInstructions(): string | undefined { + return this.instructions; + } + + /** + * Fetch server data (capabilities, tools, resources, prompts, serverInfo, instructions) + * Called automatically on connect, but can be called manually if needed. + * TODO: Add support for listChanged notifications to auto-refresh when server data changes + */ + private async fetchServerData(): Promise { + if (!this.client) { + return; + } + + try { + // Get server capabilities + this.capabilities = this.client.getServerCapabilities(); + this.emit("capabilitiesChange", this.capabilities); + + // Get server info (name, version) and instructions + this.serverInfo = this.client.getServerVersion(); + this.instructions = this.client.getInstructions(); + this.emit("serverInfoChange", this.serverInfo); + if (this.instructions !== undefined) { + this.emit("instructionsChange", this.instructions); + } + + // Query resources, prompts, and tools based on capabilities + if (this.capabilities?.resources) { + try { + const result = await this.client.listResources(); + this.resources = result.resources || []; + this.emit("resourcesChange", this.resources); + } catch (err) { + // Ignore errors, just leave empty + this.resources = []; + this.emit("resourcesChange", this.resources); + } + } + + if (this.capabilities?.prompts) { + try { + const result = await this.client.listPrompts(); + this.prompts = result.prompts || []; + this.emit("promptsChange", this.prompts); + } catch (err) { + // Ignore errors, just leave empty + this.prompts = []; + this.emit("promptsChange", this.prompts); + } + } + + if (this.capabilities?.tools) { + try { + const result = await this.client.listTools(); + this.tools = result.tools || []; + this.emit("toolsChange", this.tools); + } catch (err) { + // Ignore errors, just leave empty + this.tools = []; + this.emit("toolsChange", this.tools); + } + } + } catch (error) { + // If fetching fails, we still consider the connection successful + // but log the error + this.emit("error", error); + } + } + + private addMessage(entry: MessageEntry): void { + if (this.maxMessages > 0 && this.messages.length >= this.maxMessages) { + // Remove oldest message + this.messages.shift(); + } + this.messages.push(entry); + this.emit("message", entry); + this.emit("messagesChange"); + } + + private updateMessageResponse( + requestIndex: number, + response: JSONRPCResultResponse | JSONRPCErrorResponse, + ): void { + const requestEntry = this.messages[requestIndex]; + const duration = Date.now() - requestEntry.timestamp.getTime(); + this.messages[requestIndex] = { + ...requestEntry, + response, + duration, + }; + this.emit("message", this.messages[requestIndex]); + this.emit("messagesChange"); + } + + private addStderrLog(entry: StderrLogEntry): void { + if ( + this.maxStderrLogEvents > 0 && + this.stderrLogs.length >= this.maxStderrLogEvents + ) { + // Remove oldest stderr log + this.stderrLogs.shift(); + } + this.stderrLogs.push(entry); + this.emit("stderrLog", entry); + this.emit("stderrLogsChange"); + } +} diff --git a/tui/src/utils/messageTrackingTransport.ts b/tui/src/utils/messageTrackingTransport.ts new file mode 100644 index 000000000..8c42319b1 --- /dev/null +++ b/tui/src/utils/messageTrackingTransport.ts @@ -0,0 +1,120 @@ +import type { + Transport, + TransportSendOptions, +} from "@modelcontextprotocol/sdk/shared/transport.js"; +import type { + JSONRPCMessage, + MessageExtraInfo, +} from "@modelcontextprotocol/sdk/types.js"; +import type { + JSONRPCRequest, + JSONRPCNotification, + JSONRPCResultResponse, + JSONRPCErrorResponse, +} from "@modelcontextprotocol/sdk/types.js"; + +export interface MessageTrackingCallbacks { + trackRequest?: (message: JSONRPCRequest) => void; + trackResponse?: ( + message: JSONRPCResultResponse | JSONRPCErrorResponse, + ) => void; + trackNotification?: (message: JSONRPCNotification) => void; +} + +// Transport wrapper that intercepts all messages for tracking +export class MessageTrackingTransport implements Transport { + constructor( + private baseTransport: Transport, + private callbacks: MessageTrackingCallbacks, + ) {} + + async start(): Promise { + return this.baseTransport.start(); + } + + async send( + message: JSONRPCMessage, + options?: TransportSendOptions, + ): Promise { + // Track outgoing requests (only requests have a method and are sent by the client) + if ("method" in message && "id" in message) { + this.callbacks.trackRequest?.(message as JSONRPCRequest); + } + return this.baseTransport.send(message, options); + } + + async close(): Promise { + return this.baseTransport.close(); + } + + get onclose(): (() => void) | undefined { + return this.baseTransport.onclose; + } + + set onclose(handler: (() => void) | undefined) { + this.baseTransport.onclose = handler; + } + + get onerror(): ((error: Error) => void) | undefined { + return this.baseTransport.onerror; + } + + set onerror(handler: ((error: Error) => void) | undefined) { + this.baseTransport.onerror = handler; + } + + get onmessage(): + | ((message: T, extra?: MessageExtraInfo) => void) + | undefined { + return this.baseTransport.onmessage; + } + + set onmessage( + handler: + | (( + message: T, + extra?: MessageExtraInfo, + ) => void) + | undefined, + ) { + if (handler) { + // Wrap the handler to track incoming messages + this.baseTransport.onmessage = ( + message: T, + extra?: MessageExtraInfo, + ) => { + // Track incoming messages + if ( + "id" in message && + message.id !== null && + message.id !== undefined + ) { + // Check if it's a response (has 'result' or 'error' property) + if ("result" in message || "error" in message) { + this.callbacks.trackResponse?.( + message as JSONRPCResultResponse | JSONRPCErrorResponse, + ); + } else if ("method" in message) { + // This is a request coming from the server + this.callbacks.trackRequest?.(message as JSONRPCRequest); + } + } else if ("method" in message) { + // Notification (no ID, has method) + this.callbacks.trackNotification?.(message as JSONRPCNotification); + } + // Call the original handler + handler(message, extra); + }; + } else { + this.baseTransport.onmessage = undefined; + } + } + + get sessionId(): string | undefined { + return this.baseTransport.sessionId; + } + + get setProtocolVersion(): ((version: string) => void) | undefined { + return this.baseTransport.setProtocolVersion; + } +} From 2dd47556b7b44ae3dc5cc63d4a466616e588c0b3 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Sun, 18 Jan 2026 23:49:07 -0800 Subject: [PATCH 11/44] Refactored MCP code into mcp folder with it's own types file. --- tui/build/src/App.js | 6 +- tui/build/src/mcp/client.js | 15 + tui/build/src/mcp/config.js | 24 ++ tui/build/src/mcp/index.js | 7 + tui/build/src/mcp/inspectorClient.js | 332 ++++++++++++++++++ tui/build/src/mcp/messageTrackingTransport.js | 71 ++++ tui/build/src/mcp/transport.js | 70 ++++ tui/build/src/mcp/types.js | 1 + tui/src/App.tsx | 23 +- tui/src/components/HistoryTab.tsx | 2 +- tui/src/components/InfoTab.tsx | 3 +- tui/src/components/NotificationsTab.tsx | 2 +- tui/src/hooks/useInspectorClient.ts | 4 +- tui/src/{utils => mcp}/client.ts | 0 tui/src/{utils => mcp}/config.ts | 2 +- tui/src/mcp/index.ts | 34 ++ tui/src/{utils => mcp}/inspectorClient.ts | 2 +- .../messageTrackingTransport.ts | 0 tui/src/{utils => mcp}/transport.ts | 4 +- tui/src/{ => mcp}/types.ts | 0 tui/src/types/focus.ts | 10 - 21 files changed, 583 insertions(+), 29 deletions(-) create mode 100644 tui/build/src/mcp/client.js create mode 100644 tui/build/src/mcp/config.js create mode 100644 tui/build/src/mcp/index.js create mode 100644 tui/build/src/mcp/inspectorClient.js create mode 100644 tui/build/src/mcp/messageTrackingTransport.js create mode 100644 tui/build/src/mcp/transport.js create mode 100644 tui/build/src/mcp/types.js rename tui/src/{utils => mcp}/client.ts (100%) rename tui/src/{utils => mcp}/config.ts (95%) create mode 100644 tui/src/mcp/index.ts rename tui/src/{utils => mcp}/inspectorClient.ts (99%) rename tui/src/{utils => mcp}/messageTrackingTransport.ts (100%) rename tui/src/{utils => mcp}/transport.ts (97%) rename tui/src/{ => mcp}/types.ts (100%) delete mode 100644 tui/src/types/focus.ts diff --git a/tui/build/src/App.js b/tui/build/src/App.js index d2ac97eda..aeb44c32c 100644 --- a/tui/build/src/App.js +++ b/tui/build/src/App.js @@ -8,8 +8,8 @@ import { Box, Text, useInput, useApp } from "ink"; import { readFileSync } from "fs"; import { fileURLToPath } from "url"; import { dirname, join } from "path"; -import { loadMcpServersConfig } from "./utils/config.js"; -import { InspectorClient } from "./utils/inspectorClient.js"; +import { loadMcpServersConfig } from "./mcp/index.js"; +import { InspectorClient } from "./mcp/index.js"; import { useInspectorClient } from "./hooks/useInspectorClient.js"; import { Tabs, tabs as tabList } from "./components/Tabs.js"; import { InfoTab } from "./components/InfoTab.js"; @@ -20,7 +20,7 @@ import { NotificationsTab } from "./components/NotificationsTab.js"; import { HistoryTab } from "./components/HistoryTab.js"; import { ToolTestModal } from "./components/ToolTestModal.js"; import { DetailsModal } from "./components/DetailsModal.js"; -import { getServerType } from "./utils/transport.js"; +import { getServerType } from "./mcp/index.js"; const __filename = fileURLToPath(import.meta.url); const __dirname = dirname(__filename); // Read package.json to get project info diff --git a/tui/build/src/mcp/client.js b/tui/build/src/mcp/client.js new file mode 100644 index 000000000..fe3ef7a71 --- /dev/null +++ b/tui/build/src/mcp/client.js @@ -0,0 +1,15 @@ +import { Client } from "@modelcontextprotocol/sdk/client/index.js"; +/** + * Creates a new MCP client with standard configuration + */ +export function createClient(transport) { + return new Client( + { + name: "mcp-inspect", + version: "1.0.5", + }, + { + capabilities: {}, + }, + ); +} diff --git a/tui/build/src/mcp/config.js b/tui/build/src/mcp/config.js new file mode 100644 index 000000000..64431932b --- /dev/null +++ b/tui/build/src/mcp/config.js @@ -0,0 +1,24 @@ +import { readFileSync } from "fs"; +import { resolve } from "path"; +/** + * Loads and validates an MCP servers configuration file + * @param configPath - Path to the config file (relative to process.cwd() or absolute) + * @returns The parsed MCPConfig + * @throws Error if the file cannot be loaded, parsed, or is invalid + */ +export function loadMcpServersConfig(configPath) { + try { + const resolvedPath = resolve(process.cwd(), configPath); + const configContent = readFileSync(resolvedPath, "utf-8"); + const config = JSON.parse(configContent); + if (!config.mcpServers) { + throw new Error("Configuration file must contain an mcpServers element"); + } + return config; + } catch (error) { + if (error instanceof Error) { + throw new Error(`Error loading configuration: ${error.message}`); + } + throw new Error("Error loading configuration: Unknown error"); + } +} diff --git a/tui/build/src/mcp/index.js b/tui/build/src/mcp/index.js new file mode 100644 index 000000000..f0232999c --- /dev/null +++ b/tui/build/src/mcp/index.js @@ -0,0 +1,7 @@ +// Main MCP client module +// Re-exports the primary API for MCP client/server interaction +export { InspectorClient } from "./inspectorClient.js"; +export { createTransport, getServerType } from "./transport.js"; +export { createClient } from "./client.js"; +export { MessageTrackingTransport } from "./messageTrackingTransport.js"; +export { loadMcpServersConfig } from "./config.js"; diff --git a/tui/build/src/mcp/inspectorClient.js b/tui/build/src/mcp/inspectorClient.js new file mode 100644 index 000000000..3f89a442d --- /dev/null +++ b/tui/build/src/mcp/inspectorClient.js @@ -0,0 +1,332 @@ +import { createTransport } from "./transport.js"; +import { createClient } from "./client.js"; +import { MessageTrackingTransport } from "./messageTrackingTransport.js"; +import { EventEmitter } from "events"; +/** + * InspectorClient wraps an MCP Client and provides: + * - Message tracking and storage + * - Stderr log tracking and storage (for stdio transports) + * - Event emitter interface for React hooks + * - Access to client functionality (prompts, resources, tools) + */ +export class InspectorClient extends EventEmitter { + transportConfig; + client = null; + transport = null; + baseTransport = null; + messages = []; + stderrLogs = []; + maxMessages; + maxStderrLogEvents; + status = "disconnected"; + // Server data + tools = []; + resources = []; + prompts = []; + capabilities; + serverInfo; + instructions; + constructor(transportConfig, options = {}) { + super(); + this.transportConfig = transportConfig; + this.maxMessages = options.maxMessages ?? 1000; + this.maxStderrLogEvents = options.maxStderrLogEvents ?? 1000; + // Set up message tracking callbacks + const messageTracking = { + trackRequest: (message) => { + const entry = { + id: `${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "request", + message, + }; + this.addMessage(entry); + }, + trackResponse: (message) => { + const messageId = message.id; + // Find the matching request by message ID + const requestIndex = this.messages.findIndex( + (e) => + e.direction === "request" && + "id" in e.message && + e.message.id === messageId, + ); + if (requestIndex !== -1) { + // Update the request entry with the response + this.updateMessageResponse(requestIndex, message); + } else { + // No matching request found, create orphaned response entry + const entry = { + id: `${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "response", + message, + }; + this.addMessage(entry); + } + }, + trackNotification: (message) => { + const entry = { + id: `${Date.now()}-${Math.random()}`, + timestamp: new Date(), + direction: "notification", + message, + }; + this.addMessage(entry); + }, + }; + // Create transport with stderr logging if needed + const transportOptions = { + pipeStderr: options.pipeStderr ?? false, + onStderr: (entry) => { + this.addStderrLog(entry); + }, + }; + const { transport: baseTransport } = createTransport( + transportConfig, + transportOptions, + ); + // Store base transport for event listeners (always listen to actual transport, not wrapper) + this.baseTransport = baseTransport; + // Wrap with MessageTrackingTransport if we're tracking messages + this.transport = + this.maxMessages > 0 + ? new MessageTrackingTransport(baseTransport, messageTracking) + : baseTransport; + // Set up transport event listeners on base transport to track disconnections + this.baseTransport.onclose = () => { + if (this.status !== "disconnected") { + this.status = "disconnected"; + this.emit("statusChange", this.status); + this.emit("disconnect"); + } + }; + this.baseTransport.onerror = (error) => { + this.status = "error"; + this.emit("statusChange", this.status); + this.emit("error", error); + }; + // Create client + this.client = createClient(this.transport); + } + /** + * Connect to the MCP server + */ + async connect() { + if (!this.client || !this.transport) { + throw new Error("Client or transport not initialized"); + } + // If already connected, return early + if (this.status === "connected") { + return; + } + try { + this.status = "connecting"; + this.emit("statusChange", this.status); + await this.client.connect(this.transport); + this.status = "connected"; + this.emit("statusChange", this.status); + this.emit("connect"); + // Auto-fetch server data on connect + await this.fetchServerData(); + } catch (error) { + this.status = "error"; + this.emit("statusChange", this.status); + this.emit("error", error); + throw error; + } + } + /** + * Disconnect from the MCP server + */ + async disconnect() { + if (this.client) { + try { + await this.client.close(); + } catch (error) { + // Ignore errors on close + } + } + // Update status - transport onclose handler will also fire, but we update here too + if (this.status !== "disconnected") { + this.status = "disconnected"; + this.emit("statusChange", this.status); + this.emit("disconnect"); + } + } + /** + * Get the underlying MCP Client + */ + getClient() { + if (!this.client) { + throw new Error("Client not initialized"); + } + return this.client; + } + /** + * Get all messages + */ + getMessages() { + return [...this.messages]; + } + /** + * Get all stderr logs + */ + getStderrLogs() { + return [...this.stderrLogs]; + } + /** + * Clear all messages + */ + clearMessages() { + this.messages = []; + this.emit("messagesChange"); + } + /** + * Clear all stderr logs + */ + clearStderrLogs() { + this.stderrLogs = []; + this.emit("stderrLogsChange"); + } + /** + * Get the current connection status + */ + getStatus() { + return this.status; + } + /** + * Get the MCP server configuration used to create this client + */ + getTransportConfig() { + return this.transportConfig; + } + /** + * Get all tools + */ + getTools() { + return [...this.tools]; + } + /** + * Get all resources + */ + getResources() { + return [...this.resources]; + } + /** + * Get all prompts + */ + getPrompts() { + return [...this.prompts]; + } + /** + * Get server capabilities + */ + getCapabilities() { + return this.capabilities; + } + /** + * Get server info (name, version) + */ + getServerInfo() { + return this.serverInfo; + } + /** + * Get server instructions + */ + getInstructions() { + return this.instructions; + } + /** + * Fetch server data (capabilities, tools, resources, prompts, serverInfo, instructions) + * Called automatically on connect, but can be called manually if needed. + * TODO: Add support for listChanged notifications to auto-refresh when server data changes + */ + async fetchServerData() { + if (!this.client) { + return; + } + try { + // Get server capabilities + this.capabilities = this.client.getServerCapabilities(); + this.emit("capabilitiesChange", this.capabilities); + // Get server info (name, version) and instructions + this.serverInfo = this.client.getServerVersion(); + this.instructions = this.client.getInstructions(); + this.emit("serverInfoChange", this.serverInfo); + if (this.instructions !== undefined) { + this.emit("instructionsChange", this.instructions); + } + // Query resources, prompts, and tools based on capabilities + if (this.capabilities?.resources) { + try { + const result = await this.client.listResources(); + this.resources = result.resources || []; + this.emit("resourcesChange", this.resources); + } catch (err) { + // Ignore errors, just leave empty + this.resources = []; + this.emit("resourcesChange", this.resources); + } + } + if (this.capabilities?.prompts) { + try { + const result = await this.client.listPrompts(); + this.prompts = result.prompts || []; + this.emit("promptsChange", this.prompts); + } catch (err) { + // Ignore errors, just leave empty + this.prompts = []; + this.emit("promptsChange", this.prompts); + } + } + if (this.capabilities?.tools) { + try { + const result = await this.client.listTools(); + this.tools = result.tools || []; + this.emit("toolsChange", this.tools); + } catch (err) { + // Ignore errors, just leave empty + this.tools = []; + this.emit("toolsChange", this.tools); + } + } + } catch (error) { + // If fetching fails, we still consider the connection successful + // but log the error + this.emit("error", error); + } + } + addMessage(entry) { + if (this.maxMessages > 0 && this.messages.length >= this.maxMessages) { + // Remove oldest message + this.messages.shift(); + } + this.messages.push(entry); + this.emit("message", entry); + this.emit("messagesChange"); + } + updateMessageResponse(requestIndex, response) { + const requestEntry = this.messages[requestIndex]; + const duration = Date.now() - requestEntry.timestamp.getTime(); + this.messages[requestIndex] = { + ...requestEntry, + response, + duration, + }; + this.emit("message", this.messages[requestIndex]); + this.emit("messagesChange"); + } + addStderrLog(entry) { + if ( + this.maxStderrLogEvents > 0 && + this.stderrLogs.length >= this.maxStderrLogEvents + ) { + // Remove oldest stderr log + this.stderrLogs.shift(); + } + this.stderrLogs.push(entry); + this.emit("stderrLog", entry); + this.emit("stderrLogsChange"); + } +} diff --git a/tui/build/src/mcp/messageTrackingTransport.js b/tui/build/src/mcp/messageTrackingTransport.js new file mode 100644 index 000000000..2d6966a0e --- /dev/null +++ b/tui/build/src/mcp/messageTrackingTransport.js @@ -0,0 +1,71 @@ +// Transport wrapper that intercepts all messages for tracking +export class MessageTrackingTransport { + baseTransport; + callbacks; + constructor(baseTransport, callbacks) { + this.baseTransport = baseTransport; + this.callbacks = callbacks; + } + async start() { + return this.baseTransport.start(); + } + async send(message, options) { + // Track outgoing requests (only requests have a method and are sent by the client) + if ("method" in message && "id" in message) { + this.callbacks.trackRequest?.(message); + } + return this.baseTransport.send(message, options); + } + async close() { + return this.baseTransport.close(); + } + get onclose() { + return this.baseTransport.onclose; + } + set onclose(handler) { + this.baseTransport.onclose = handler; + } + get onerror() { + return this.baseTransport.onerror; + } + set onerror(handler) { + this.baseTransport.onerror = handler; + } + get onmessage() { + return this.baseTransport.onmessage; + } + set onmessage(handler) { + if (handler) { + // Wrap the handler to track incoming messages + this.baseTransport.onmessage = (message, extra) => { + // Track incoming messages + if ( + "id" in message && + message.id !== null && + message.id !== undefined + ) { + // Check if it's a response (has 'result' or 'error' property) + if ("result" in message || "error" in message) { + this.callbacks.trackResponse?.(message); + } else if ("method" in message) { + // This is a request coming from the server + this.callbacks.trackRequest?.(message); + } + } else if ("method" in message) { + // Notification (no ID, has method) + this.callbacks.trackNotification?.(message); + } + // Call the original handler + handler(message, extra); + }; + } else { + this.baseTransport.onmessage = undefined; + } + } + get sessionId() { + return this.baseTransport.sessionId; + } + get setProtocolVersion() { + return this.baseTransport.setProtocolVersion; + } +} diff --git a/tui/build/src/mcp/transport.js b/tui/build/src/mcp/transport.js new file mode 100644 index 000000000..01f57294e --- /dev/null +++ b/tui/build/src/mcp/transport.js @@ -0,0 +1,70 @@ +import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; +import { SSEClientTransport } from "@modelcontextprotocol/sdk/client/sse.js"; +import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"; +export function getServerType(config) { + if ("type" in config) { + if (config.type === "sse") return "sse"; + if (config.type === "streamableHttp") return "streamableHttp"; + } + return "stdio"; +} +/** + * Creates the appropriate transport for an MCP server configuration + */ +export function createTransport(config, options = {}) { + const serverType = getServerType(config); + const { onStderr, pipeStderr = false } = options; + if (serverType === "stdio") { + const stdioConfig = config; + const transport = new StdioClientTransport({ + command: stdioConfig.command, + args: stdioConfig.args || [], + env: stdioConfig.env, + cwd: stdioConfig.cwd, + stderr: pipeStderr ? "pipe" : undefined, + }); + // Set up stderr listener if requested + if (pipeStderr && transport.stderr && onStderr) { + transport.stderr.on("data", (data) => { + const logEntry = data.toString().trim(); + if (logEntry) { + onStderr({ + timestamp: new Date(), + message: logEntry, + }); + } + }); + } + return { transport: transport }; + } else if (serverType === "sse") { + const sseConfig = config; + const url = new URL(sseConfig.url); + // Merge headers and requestInit + const eventSourceInit = { + ...sseConfig.eventSourceInit, + ...(sseConfig.headers && { headers: sseConfig.headers }), + }; + const requestInit = { + ...sseConfig.requestInit, + ...(sseConfig.headers && { headers: sseConfig.headers }), + }; + const transport = new SSEClientTransport(url, { + eventSourceInit, + requestInit, + }); + return { transport }; + } else { + // streamableHttp + const httpConfig = config; + const url = new URL(httpConfig.url); + // Merge headers and requestInit + const requestInit = { + ...httpConfig.requestInit, + ...(httpConfig.headers && { headers: httpConfig.headers }), + }; + const transport = new StreamableHTTPClientTransport(url, { + requestInit, + }); + return { transport }; + } +} diff --git a/tui/build/src/mcp/types.js b/tui/build/src/mcp/types.js new file mode 100644 index 000000000..cb0ff5c3b --- /dev/null +++ b/tui/build/src/mcp/types.js @@ -0,0 +1 @@ +export {}; diff --git a/tui/src/App.tsx b/tui/src/App.tsx index c2ac6cfec..165c24009 100644 --- a/tui/src/App.tsx +++ b/tui/src/App.tsx @@ -3,10 +3,9 @@ import { Box, Text, useInput, useApp, type Key } from "ink"; import { readFileSync } from "fs"; import { fileURLToPath } from "url"; import { dirname, join } from "path"; -import type { MCPServerConfig, MessageEntry } from "./types.js"; -import { loadMcpServersConfig } from "./utils/config.js"; -import type { FocusArea } from "./types/focus.js"; -import { InspectorClient } from "./utils/inspectorClient.js"; +import type { MCPServerConfig, MessageEntry } from "./mcp/index.js"; +import { loadMcpServersConfig } from "./mcp/index.js"; +import { InspectorClient } from "./mcp/index.js"; import { useInspectorClient } from "./hooks/useInspectorClient.js"; import { Tabs, type TabType, tabs as tabList } from "./components/Tabs.js"; import { InfoTab } from "./components/InfoTab.js"; @@ -18,8 +17,8 @@ import { HistoryTab } from "./components/HistoryTab.js"; import { ToolTestModal } from "./components/ToolTestModal.js"; import { DetailsModal } from "./components/DetailsModal.js"; import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; -import { createTransport, getServerType } from "./utils/transport.js"; -import { createClient } from "./utils/client.js"; +import { createTransport, getServerType } from "./mcp/index.js"; +import { createClient } from "./mcp/index.js"; const __filename = fileURLToPath(import.meta.url); const __dirname = dirname(__filename); @@ -49,6 +48,18 @@ try { }; } +// Focus management types +type FocusArea = + | "serverList" + | "tabs" + // Used by Resources/Prompts/Tools - list pane + | "tabContentList" + // Used by Resources/Prompts/Tools - details pane + | "tabContentDetails" + // Used only when activeTab === 'messages' + | "messagesList" + | "messagesDetail"; + interface AppProps { configFile: string; } diff --git a/tui/src/components/HistoryTab.tsx b/tui/src/components/HistoryTab.tsx index e25e0351a..693681dd2 100644 --- a/tui/src/components/HistoryTab.tsx +++ b/tui/src/components/HistoryTab.tsx @@ -1,7 +1,7 @@ import React, { useState, useMemo, useEffect, useRef } from "react"; import { Box, Text, useInput, type Key } from "ink"; import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; -import type { MessageEntry } from "../types.js"; +import type { MessageEntry } from "../mcp/index.js"; interface HistoryTabProps { serverName: string | null; diff --git a/tui/src/components/InfoTab.tsx b/tui/src/components/InfoTab.tsx index 9745cef91..00b6fae1f 100644 --- a/tui/src/components/InfoTab.tsx +++ b/tui/src/components/InfoTab.tsx @@ -1,8 +1,7 @@ import React, { useRef } from "react"; import { Box, Text, useInput, type Key } from "ink"; import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; -import type { MCPServerConfig } from "../types.js"; -import type { ServerState } from "../types.js"; +import type { MCPServerConfig, ServerState } from "../mcp/index.js"; interface InfoTabProps { serverName: string | null; diff --git a/tui/src/components/NotificationsTab.tsx b/tui/src/components/NotificationsTab.tsx index a2ba6d168..9f336588c 100644 --- a/tui/src/components/NotificationsTab.tsx +++ b/tui/src/components/NotificationsTab.tsx @@ -2,7 +2,7 @@ import React, { useEffect, useRef } from "react"; import { Box, Text, useInput, type Key } from "ink"; import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; -import type { StderrLogEntry } from "../types.js"; +import type { StderrLogEntry } from "../mcp/index.js"; interface NotificationsTabProps { client: Client | null; diff --git a/tui/src/hooks/useInspectorClient.ts b/tui/src/hooks/useInspectorClient.ts index 2e413c637..77f95f530 100644 --- a/tui/src/hooks/useInspectorClient.ts +++ b/tui/src/hooks/useInspectorClient.ts @@ -1,10 +1,10 @@ import { useState, useEffect, useCallback } from "react"; -import { InspectorClient } from "../utils/inspectorClient.js"; +import { InspectorClient } from "../mcp/index.js"; import type { ConnectionStatus, StderrLogEntry, MessageEntry, -} from "../types.js"; +} from "../mcp/index.js"; import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; import type { ServerCapabilities, diff --git a/tui/src/utils/client.ts b/tui/src/mcp/client.ts similarity index 100% rename from tui/src/utils/client.ts rename to tui/src/mcp/client.ts diff --git a/tui/src/utils/config.ts b/tui/src/mcp/config.ts similarity index 95% rename from tui/src/utils/config.ts rename to tui/src/mcp/config.ts index cf9c052d6..9aaeca4bc 100644 --- a/tui/src/utils/config.ts +++ b/tui/src/mcp/config.ts @@ -1,6 +1,6 @@ import { readFileSync } from "fs"; import { resolve } from "path"; -import type { MCPConfig } from "../types.js"; +import type { MCPConfig } from "./types.js"; /** * Loads and validates an MCP servers configuration file diff --git a/tui/src/mcp/index.ts b/tui/src/mcp/index.ts new file mode 100644 index 000000000..de5b56c37 --- /dev/null +++ b/tui/src/mcp/index.ts @@ -0,0 +1,34 @@ +// Main MCP client module +// Re-exports the primary API for MCP client/server interaction + +export { InspectorClient } from "./inspectorClient.js"; +export type { InspectorClientOptions } from "./inspectorClient.js"; + +export { createTransport, getServerType } from "./transport.js"; +export type { + CreateTransportOptions, + CreateTransportResult, + ServerType, +} from "./transport.js"; + +export { createClient } from "./client.js"; + +export { MessageTrackingTransport } from "./messageTrackingTransport.js"; +export type { MessageTrackingCallbacks } from "./messageTrackingTransport.js"; + +export { loadMcpServersConfig } from "./config.js"; + +// Re-export all types +export type { + // Transport config types + StdioServerConfig, + SseServerConfig, + StreamableHttpServerConfig, + MCPServerConfig, + MCPConfig, + // Connection and state types + ConnectionStatus, + StderrLogEntry, + MessageEntry, + ServerState, +} from "./types.js"; diff --git a/tui/src/utils/inspectorClient.ts b/tui/src/mcp/inspectorClient.ts similarity index 99% rename from tui/src/utils/inspectorClient.ts rename to tui/src/mcp/inspectorClient.ts index a441524e1..a2f299143 100644 --- a/tui/src/utils/inspectorClient.ts +++ b/tui/src/mcp/inspectorClient.ts @@ -4,7 +4,7 @@ import type { StderrLogEntry, ConnectionStatus, MessageEntry, -} from "../types.js"; +} from "./types.js"; import { createTransport, type CreateTransportOptions } from "./transport.js"; import { createClient } from "./client.js"; import { diff --git a/tui/src/utils/messageTrackingTransport.ts b/tui/src/mcp/messageTrackingTransport.ts similarity index 100% rename from tui/src/utils/messageTrackingTransport.ts rename to tui/src/mcp/messageTrackingTransport.ts diff --git a/tui/src/utils/transport.ts b/tui/src/mcp/transport.ts similarity index 97% rename from tui/src/utils/transport.ts rename to tui/src/mcp/transport.ts index ff2a759fe..57cb52ca0 100644 --- a/tui/src/utils/transport.ts +++ b/tui/src/mcp/transport.ts @@ -3,12 +3,12 @@ import type { StdioServerConfig, SseServerConfig, StreamableHttpServerConfig, -} from "../types.js"; + StderrLogEntry, +} from "./types.js"; import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; import { SSEClientTransport } from "@modelcontextprotocol/sdk/client/sse.js"; import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"; import type { Transport } from "@modelcontextprotocol/sdk/shared/transport.js"; -import type { StderrLogEntry } from "../types.js"; export type ServerType = "stdio" | "sse" | "streamableHttp"; diff --git a/tui/src/types.ts b/tui/src/mcp/types.ts similarity index 100% rename from tui/src/types.ts rename to tui/src/mcp/types.ts diff --git a/tui/src/types/focus.ts b/tui/src/types/focus.ts deleted file mode 100644 index 62233404b..000000000 --- a/tui/src/types/focus.ts +++ /dev/null @@ -1,10 +0,0 @@ -export type FocusArea = - | "serverList" - | "tabs" - // Used by Resources/Prompts/Tools - list pane - | "tabContentList" - // Used by Resources/Prompts/Tools - details pane - | "tabContentDetails" - // Used only when activeTab === 'messages' - | "messagesList" - | "messagesDetail"; From ed44d5f6b7e93f92ffb43d2c889f26d5a8ddbd37 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Mon, 19 Jan 2026 00:16:02 -0800 Subject: [PATCH 12/44] Cleaned up barrel exports, removed inadventantly committed build files. --- tui/build/src/App.js | 1021 ----------------- tui/build/src/components/DetailsModal.js | 82 -- tui/build/src/components/HistoryTab.js | 399 ------- tui/build/src/components/InfoTab.js | 330 ------ tui/build/src/components/NotificationsTab.js | 91 -- tui/build/src/components/PromptsTab.js | 236 ---- tui/build/src/components/ResourcesTab.js | 221 ---- tui/build/src/components/Tabs.js | 61 - tui/build/src/components/ToolTestModal.js | 289 ----- tui/build/src/components/ToolsTab.js | 259 ----- tui/build/src/hooks/useInspectorClient.js | 136 --- tui/build/src/hooks/useMCPClient.js | 115 -- tui/build/src/hooks/useMessageTracking.js | 131 --- tui/build/src/mcp/client.js | 15 - tui/build/src/mcp/config.js | 24 - tui/build/src/mcp/index.js | 7 - tui/build/src/mcp/inspectorClient.js | 332 ------ tui/build/src/mcp/messageTrackingTransport.js | 71 -- tui/build/src/mcp/transport.js | 70 -- tui/build/src/mcp/types.js | 1 - tui/build/src/types.js | 1 - tui/build/src/types/focus.js | 1 - tui/build/src/types/messages.js | 1 - tui/build/src/utils/client.js | 15 - tui/build/src/utils/config.js | 24 - tui/build/src/utils/inspectorClient.js | 332 ------ .../src/utils/messageTrackingTransport.js | 71 -- tui/build/src/utils/schemaToForm.js | 104 -- tui/build/src/utils/transport.js | 70 -- tui/build/tui.js | 56 - 30 files changed, 4566 deletions(-) delete mode 100644 tui/build/src/App.js delete mode 100644 tui/build/src/components/DetailsModal.js delete mode 100644 tui/build/src/components/HistoryTab.js delete mode 100644 tui/build/src/components/InfoTab.js delete mode 100644 tui/build/src/components/NotificationsTab.js delete mode 100644 tui/build/src/components/PromptsTab.js delete mode 100644 tui/build/src/components/ResourcesTab.js delete mode 100644 tui/build/src/components/Tabs.js delete mode 100644 tui/build/src/components/ToolTestModal.js delete mode 100644 tui/build/src/components/ToolsTab.js delete mode 100644 tui/build/src/hooks/useInspectorClient.js delete mode 100644 tui/build/src/hooks/useMCPClient.js delete mode 100644 tui/build/src/hooks/useMessageTracking.js delete mode 100644 tui/build/src/mcp/client.js delete mode 100644 tui/build/src/mcp/config.js delete mode 100644 tui/build/src/mcp/index.js delete mode 100644 tui/build/src/mcp/inspectorClient.js delete mode 100644 tui/build/src/mcp/messageTrackingTransport.js delete mode 100644 tui/build/src/mcp/transport.js delete mode 100644 tui/build/src/mcp/types.js delete mode 100644 tui/build/src/types.js delete mode 100644 tui/build/src/types/focus.js delete mode 100644 tui/build/src/types/messages.js delete mode 100644 tui/build/src/utils/client.js delete mode 100644 tui/build/src/utils/config.js delete mode 100644 tui/build/src/utils/inspectorClient.js delete mode 100644 tui/build/src/utils/messageTrackingTransport.js delete mode 100644 tui/build/src/utils/schemaToForm.js delete mode 100644 tui/build/src/utils/transport.js delete mode 100644 tui/build/tui.js diff --git a/tui/build/src/App.js b/tui/build/src/App.js deleted file mode 100644 index aeb44c32c..000000000 --- a/tui/build/src/App.js +++ /dev/null @@ -1,1021 +0,0 @@ -import { - jsx as _jsx, - Fragment as _Fragment, - jsxs as _jsxs, -} from "react/jsx-runtime"; -import { useState, useMemo, useEffect, useCallback } from "react"; -import { Box, Text, useInput, useApp } from "ink"; -import { readFileSync } from "fs"; -import { fileURLToPath } from "url"; -import { dirname, join } from "path"; -import { loadMcpServersConfig } from "./mcp/index.js"; -import { InspectorClient } from "./mcp/index.js"; -import { useInspectorClient } from "./hooks/useInspectorClient.js"; -import { Tabs, tabs as tabList } from "./components/Tabs.js"; -import { InfoTab } from "./components/InfoTab.js"; -import { ResourcesTab } from "./components/ResourcesTab.js"; -import { PromptsTab } from "./components/PromptsTab.js"; -import { ToolsTab } from "./components/ToolsTab.js"; -import { NotificationsTab } from "./components/NotificationsTab.js"; -import { HistoryTab } from "./components/HistoryTab.js"; -import { ToolTestModal } from "./components/ToolTestModal.js"; -import { DetailsModal } from "./components/DetailsModal.js"; -import { getServerType } from "./mcp/index.js"; -const __filename = fileURLToPath(import.meta.url); -const __dirname = dirname(__filename); -// Read package.json to get project info -// Strategy: Try multiple paths to handle both local dev and global install -// - Local dev (tsx): __dirname = src/, package.json is one level up -// - Global install: __dirname = dist/src/, package.json is two levels up -let packagePath; -let packageJson; -try { - // Try two levels up first (global install case) - packagePath = join(__dirname, "..", "..", "package.json"); - packageJson = JSON.parse(readFileSync(packagePath, "utf-8")); -} catch { - // Fall back to one level up (local dev case) - packagePath = join(__dirname, "..", "package.json"); - packageJson = JSON.parse(readFileSync(packagePath, "utf-8")); -} -function App({ configFile }) { - const { exit } = useApp(); - const [selectedServer, setSelectedServer] = useState(null); - const [activeTab, setActiveTab] = useState("info"); - const [focus, setFocus] = useState("serverList"); - const [tabCounts, setTabCounts] = useState({}); - // Tool test modal state - const [toolTestModal, setToolTestModal] = useState(null); - // Details modal state - const [detailsModal, setDetailsModal] = useState(null); - // InspectorClient instances for each server - const [inspectorClients, setInspectorClients] = useState({}); - const [dimensions, setDimensions] = useState({ - width: process.stdout.columns || 80, - height: process.stdout.rows || 24, - }); - useEffect(() => { - const updateDimensions = () => { - setDimensions({ - width: process.stdout.columns || 80, - height: process.stdout.rows || 24, - }); - }; - process.stdout.on("resize", updateDimensions); - return () => { - process.stdout.off("resize", updateDimensions); - }; - }, []); - // Parse MCP configuration - const mcpConfig = useMemo(() => { - try { - return loadMcpServersConfig(configFile); - } catch (error) { - if (error instanceof Error) { - console.error(error.message); - } else { - console.error("Error loading configuration: Unknown error"); - } - process.exit(1); - } - }, [configFile]); - const serverNames = Object.keys(mcpConfig.mcpServers); - const selectedServerConfig = selectedServer - ? mcpConfig.mcpServers[selectedServer] - : null; - // Create InspectorClient instances for each server on mount - useEffect(() => { - const newClients = {}; - for (const serverName of serverNames) { - if (!(serverName in inspectorClients)) { - const serverConfig = mcpConfig.mcpServers[serverName]; - newClients[serverName] = new InspectorClient(serverConfig, { - maxMessages: 1000, - maxStderrLogEvents: 1000, - pipeStderr: true, - }); - } - } - if (Object.keys(newClients).length > 0) { - setInspectorClients((prev) => ({ ...prev, ...newClients })); - } - // eslint-disable-next-line react-hooks/exhaustive-deps - }, []); - // Cleanup: disconnect all clients on unmount - useEffect(() => { - return () => { - Object.values(inspectorClients).forEach((client) => { - client.disconnect().catch(() => { - // Ignore errors during cleanup - }); - }); - }; - }, [inspectorClients]); - // Preselect the first server on mount - useEffect(() => { - if (serverNames.length > 0 && selectedServer === null) { - setSelectedServer(serverNames[0]); - } - // eslint-disable-next-line react-hooks/exhaustive-deps - }, []); - // Get InspectorClient for selected server - const selectedInspectorClient = useMemo( - () => (selectedServer ? inspectorClients[selectedServer] : null), - [selectedServer, inspectorClients], - ); - // Use the hook to get reactive state from InspectorClient - const { - status: inspectorStatus, - messages: inspectorMessages, - stderrLogs: inspectorStderrLogs, - tools: inspectorTools, - resources: inspectorResources, - prompts: inspectorPrompts, - capabilities: inspectorCapabilities, - serverInfo: inspectorServerInfo, - instructions: inspectorInstructions, - client: inspectorClient, - connect: connectInspector, - disconnect: disconnectInspector, - clearMessages: clearInspectorMessages, - clearStderrLogs: clearInspectorStderrLogs, - } = useInspectorClient(selectedInspectorClient); - // Connect handler - InspectorClient now handles fetching server data automatically - const handleConnect = useCallback(async () => { - if (!selectedServer || !selectedInspectorClient) return; - // Clear messages and stderr logs when connecting/reconnecting - clearInspectorMessages(); - clearInspectorStderrLogs(); - try { - await connectInspector(); - // InspectorClient automatically fetches server data (capabilities, tools, resources, prompts, etc.) - // on connect, so we don't need to do anything here - } catch (error) { - // Error handling is done by InspectorClient and will be reflected in status - } - }, [ - selectedServer, - selectedInspectorClient, - connectInspector, - clearInspectorMessages, - clearInspectorStderrLogs, - ]); - // Disconnect handler - const handleDisconnect = useCallback(async () => { - if (!selectedServer) return; - await disconnectInspector(); - // InspectorClient will update status automatically, and data is preserved - }, [selectedServer, disconnectInspector]); - // Build current server state from InspectorClient data - const currentServerState = useMemo(() => { - if (!selectedServer) return null; - return { - status: inspectorStatus, - error: null, // InspectorClient doesn't track error in state, only emits error events - capabilities: inspectorCapabilities, - serverInfo: inspectorServerInfo, - instructions: inspectorInstructions, - resources: inspectorResources, - prompts: inspectorPrompts, - tools: inspectorTools, - stderrLogs: inspectorStderrLogs, // InspectorClient manages this - }; - }, [ - selectedServer, - inspectorStatus, - inspectorCapabilities, - inspectorServerInfo, - inspectorInstructions, - inspectorResources, - inspectorPrompts, - inspectorTools, - inspectorStderrLogs, - ]); - // Helper functions to render details modal content - const renderResourceDetails = (resource) => - _jsxs(_Fragment, { - children: [ - resource.description && - _jsx(_Fragment, { - children: resource.description - .split("\n") - .map((line, idx) => - _jsx( - Box, - { - marginTop: idx === 0 ? 0 : 0, - flexShrink: 0, - children: _jsx(Text, { dimColor: true, children: line }), - }, - `desc-${idx}`, - ), - ), - }), - resource.uri && - _jsxs(Box, { - marginTop: 1, - flexShrink: 0, - children: [ - _jsx(Text, { bold: true, children: "URI:" }), - _jsx(Box, { - paddingLeft: 2, - children: _jsx(Text, { - dimColor: true, - children: resource.uri, - }), - }), - ], - }), - resource.mimeType && - _jsxs(Box, { - marginTop: 1, - flexShrink: 0, - children: [ - _jsx(Text, { bold: true, children: "MIME Type:" }), - _jsx(Box, { - paddingLeft: 2, - children: _jsx(Text, { - dimColor: true, - children: resource.mimeType, - }), - }), - ], - }), - _jsxs(Box, { - marginTop: 1, - flexShrink: 0, - flexDirection: "column", - children: [ - _jsx(Text, { bold: true, children: "Full JSON:" }), - _jsx(Box, { - paddingLeft: 2, - children: _jsx(Text, { - dimColor: true, - children: JSON.stringify(resource, null, 2), - }), - }), - ], - }), - ], - }); - const renderPromptDetails = (prompt) => - _jsxs(_Fragment, { - children: [ - prompt.description && - _jsx(_Fragment, { - children: prompt.description - .split("\n") - .map((line, idx) => - _jsx( - Box, - { - marginTop: idx === 0 ? 0 : 0, - flexShrink: 0, - children: _jsx(Text, { dimColor: true, children: line }), - }, - `desc-${idx}`, - ), - ), - }), - prompt.arguments && - prompt.arguments.length > 0 && - _jsxs(_Fragment, { - children: [ - _jsx(Box, { - marginTop: 1, - flexShrink: 0, - children: _jsx(Text, { bold: true, children: "Arguments:" }), - }), - prompt.arguments.map((arg, idx) => - _jsx( - Box, - { - marginTop: 1, - paddingLeft: 2, - flexShrink: 0, - children: _jsxs(Text, { - dimColor: true, - children: [ - "- ", - arg.name, - ": ", - arg.description || arg.type || "string", - ], - }), - }, - `arg-${idx}`, - ), - ), - ], - }), - _jsxs(Box, { - marginTop: 1, - flexShrink: 0, - flexDirection: "column", - children: [ - _jsx(Text, { bold: true, children: "Full JSON:" }), - _jsx(Box, { - paddingLeft: 2, - children: _jsx(Text, { - dimColor: true, - children: JSON.stringify(prompt, null, 2), - }), - }), - ], - }), - ], - }); - const renderToolDetails = (tool) => - _jsxs(_Fragment, { - children: [ - tool.description && - _jsx(_Fragment, { - children: tool.description - .split("\n") - .map((line, idx) => - _jsx( - Box, - { - marginTop: idx === 0 ? 0 : 0, - flexShrink: 0, - children: _jsx(Text, { dimColor: true, children: line }), - }, - `desc-${idx}`, - ), - ), - }), - tool.inputSchema && - _jsxs(Box, { - marginTop: 1, - flexShrink: 0, - flexDirection: "column", - children: [ - _jsx(Text, { bold: true, children: "Input Schema:" }), - _jsx(Box, { - paddingLeft: 2, - children: _jsx(Text, { - dimColor: true, - children: JSON.stringify(tool.inputSchema, null, 2), - }), - }), - ], - }), - _jsxs(Box, { - marginTop: 1, - flexShrink: 0, - flexDirection: "column", - children: [ - _jsx(Text, { bold: true, children: "Full JSON:" }), - _jsx(Box, { - paddingLeft: 2, - children: _jsx(Text, { - dimColor: true, - children: JSON.stringify(tool, null, 2), - }), - }), - ], - }), - ], - }); - const renderMessageDetails = (message) => - _jsxs(_Fragment, { - children: [ - _jsx(Box, { - flexShrink: 0, - children: _jsxs(Text, { - bold: true, - children: ["Direction: ", message.direction], - }), - }), - message.duration !== undefined && - _jsx(Box, { - marginTop: 1, - flexShrink: 0, - children: _jsxs(Text, { - dimColor: true, - children: ["Duration: ", message.duration, "ms"], - }), - }), - message.direction === "request" - ? _jsxs(_Fragment, { - children: [ - _jsxs(Box, { - marginTop: 1, - flexShrink: 0, - flexDirection: "column", - children: [ - _jsx(Text, { bold: true, children: "Request:" }), - _jsx(Box, { - paddingLeft: 2, - children: _jsx(Text, { - dimColor: true, - children: JSON.stringify(message.message, null, 2), - }), - }), - ], - }), - message.response && - _jsxs(Box, { - marginTop: 1, - flexShrink: 0, - flexDirection: "column", - children: [ - _jsx(Text, { bold: true, children: "Response:" }), - _jsx(Box, { - paddingLeft: 2, - children: _jsx(Text, { - dimColor: true, - children: JSON.stringify(message.response, null, 2), - }), - }), - ], - }), - ], - }) - : _jsxs(Box, { - marginTop: 1, - flexShrink: 0, - flexDirection: "column", - children: [ - _jsx(Text, { - bold: true, - children: - message.direction === "response" - ? "Response:" - : "Notification:", - }), - _jsx(Box, { - paddingLeft: 2, - children: _jsx(Text, { - dimColor: true, - children: JSON.stringify(message.message, null, 2), - }), - }), - ], - }), - ], - }); - // Update tab counts when selected server changes or InspectorClient state changes - useEffect(() => { - if (!selectedServer) { - return; - } - if (inspectorStatus === "connected") { - setTabCounts({ - resources: inspectorResources.length || 0, - prompts: inspectorPrompts.length || 0, - tools: inspectorTools.length || 0, - messages: inspectorMessages.length || 0, - logging: inspectorStderrLogs.length || 0, - }); - } else if (inspectorStatus !== "connecting") { - // Reset counts for disconnected or error states - setTabCounts({ - resources: 0, - prompts: 0, - tools: 0, - messages: inspectorMessages.length || 0, - logging: inspectorStderrLogs.length || 0, - }); - } - }, [ - selectedServer, - inspectorStatus, - inspectorResources, - inspectorPrompts, - inspectorTools, - inspectorMessages, - inspectorStderrLogs, - ]); - // Keep focus state consistent when switching tabs - useEffect(() => { - if (activeTab === "messages") { - if (focus === "tabContentList" || focus === "tabContentDetails") { - setFocus("messagesList"); - } - } else { - if (focus === "messagesList" || focus === "messagesDetail") { - setFocus("tabContentList"); - } - } - }, [activeTab]); // intentionally not depending on focus to avoid loops - // Switch away from logging tab if server is not stdio - useEffect(() => { - if (activeTab === "logging" && selectedServerConfig) { - const serverType = getServerType(selectedServerConfig); - if (serverType !== "stdio") { - setActiveTab("info"); - } - } - }, [selectedServerConfig, activeTab, getServerType]); - useInput((input, key) => { - // Don't process input when modal is open - if (toolTestModal || detailsModal) { - return; - } - if (key.ctrl && input === "c") { - exit(); - } - // Exit accelerators - if (key.escape) { - exit(); - } - // Tab switching with accelerator keys (first character of tab name) - const tabAccelerators = Object.fromEntries( - tabList.map((tab) => [tab.accelerator, tab.id]), - ); - if (tabAccelerators[input.toLowerCase()]) { - setActiveTab(tabAccelerators[input.toLowerCase()]); - setFocus("tabs"); - } else if (key.tab && !key.shift) { - // Flat focus order: servers -> tabs -> list -> details -> wrap to servers - const focusOrder = - activeTab === "messages" - ? ["serverList", "tabs", "messagesList", "messagesDetail"] - : ["serverList", "tabs", "tabContentList", "tabContentDetails"]; - const currentIndex = focusOrder.indexOf(focus); - const nextIndex = (currentIndex + 1) % focusOrder.length; - setFocus(focusOrder[nextIndex]); - } else if (key.tab && key.shift) { - // Reverse order: servers <- tabs <- list <- details <- wrap to servers - const focusOrder = - activeTab === "messages" - ? ["serverList", "tabs", "messagesList", "messagesDetail"] - : ["serverList", "tabs", "tabContentList", "tabContentDetails"]; - const currentIndex = focusOrder.indexOf(focus); - const prevIndex = - currentIndex > 0 ? currentIndex - 1 : focusOrder.length - 1; - setFocus(focusOrder[prevIndex]); - } else if (key.upArrow || key.downArrow) { - // Arrow keys only work in the focused pane - if (focus === "serverList") { - // Arrow key navigation for server list - if (key.upArrow) { - if (selectedServer === null) { - setSelectedServer(serverNames[serverNames.length - 1] || null); - } else { - const currentIndex = serverNames.indexOf(selectedServer); - const newIndex = - currentIndex > 0 ? currentIndex - 1 : serverNames.length - 1; - setSelectedServer(serverNames[newIndex] || null); - } - } else if (key.downArrow) { - if (selectedServer === null) { - setSelectedServer(serverNames[0] || null); - } else { - const currentIndex = serverNames.indexOf(selectedServer); - const newIndex = - currentIndex < serverNames.length - 1 ? currentIndex + 1 : 0; - setSelectedServer(serverNames[newIndex] || null); - } - } - return; // Handled, don't let other handlers process - } - // If focus is on tabs, tabContentList, tabContentDetails, messagesList, or messagesDetail, - // arrow keys will be handled by those components - don't do anything here - } else if (focus === "tabs" && (key.leftArrow || key.rightArrow)) { - // Left/Right arrows switch tabs when tabs are focused - const tabs = [ - "info", - "resources", - "prompts", - "tools", - "messages", - "logging", - ]; - const currentIndex = tabs.indexOf(activeTab); - if (key.leftArrow) { - const newIndex = currentIndex > 0 ? currentIndex - 1 : tabs.length - 1; - setActiveTab(tabs[newIndex]); - } else if (key.rightArrow) { - const newIndex = currentIndex < tabs.length - 1 ? currentIndex + 1 : 0; - setActiveTab(tabs[newIndex]); - } - } - // Accelerator keys for connect/disconnect (work from anywhere) - if (selectedServer) { - if ( - input.toLowerCase() === "c" && - (inspectorStatus === "disconnected" || inspectorStatus === "error") - ) { - handleConnect(); - } else if ( - input.toLowerCase() === "d" && - (inspectorStatus === "connected" || inspectorStatus === "connecting") - ) { - handleDisconnect(); - } - } - }); - // Calculate layout dimensions - const headerHeight = 1; - const tabsHeight = 1; - // Server details will be flexible - calculate remaining space for content - const availableHeight = dimensions.height - headerHeight - tabsHeight; - // Reserve space for server details (will grow as needed, but we'll use flexGrow) - const serverDetailsMinHeight = 3; - const contentHeight = availableHeight - serverDetailsMinHeight; - const serverListWidth = Math.floor(dimensions.width * 0.3); - const contentWidth = dimensions.width - serverListWidth; - const getStatusColor = (status) => { - switch (status) { - case "connected": - return "green"; - case "connecting": - return "yellow"; - case "error": - return "red"; - default: - return "gray"; - } - }; - const getStatusSymbol = (status) => { - switch (status) { - case "connected": - return "●"; - case "connecting": - return "◐"; - case "error": - return "✗"; - default: - return "○"; - } - }; - return _jsxs(Box, { - flexDirection: "column", - width: dimensions.width, - height: dimensions.height, - children: [ - _jsxs(Box, { - width: dimensions.width, - height: headerHeight, - borderStyle: "single", - borderTop: false, - borderLeft: false, - borderRight: false, - paddingX: 1, - justifyContent: "space-between", - alignItems: "center", - children: [ - _jsxs(Box, { - children: [ - _jsx(Text, { - bold: true, - color: "cyan", - children: packageJson.name, - }), - _jsxs(Text, { - dimColor: true, - children: [" - ", packageJson.description], - }), - ], - }), - _jsxs(Text, { dimColor: true, children: ["v", packageJson.version] }), - ], - }), - _jsxs(Box, { - flexDirection: "row", - height: availableHeight + tabsHeight, - width: dimensions.width, - children: [ - _jsxs(Box, { - width: serverListWidth, - height: availableHeight + tabsHeight, - borderStyle: "single", - borderTop: false, - borderBottom: false, - borderLeft: false, - borderRight: true, - flexDirection: "column", - paddingX: 1, - children: [ - _jsx(Box, { - marginTop: 1, - marginBottom: 1, - children: _jsx(Text, { - bold: true, - backgroundColor: - focus === "serverList" ? "yellow" : undefined, - children: "MCP Servers", - }), - }), - _jsx(Box, { - flexDirection: "column", - flexGrow: 1, - children: serverNames.map((serverName) => { - const isSelected = selectedServer === serverName; - return _jsx( - Box, - { - paddingY: 0, - children: _jsxs(Text, { - children: [isSelected ? "▶ " : " ", serverName], - }), - }, - serverName, - ); - }), - }), - _jsx(Box, { - flexShrink: 0, - height: 1, - justifyContent: "center", - backgroundColor: "gray", - children: _jsx(Text, { - bold: true, - color: "white", - children: "ESC to exit", - }), - }), - ], - }), - _jsxs(Box, { - flexGrow: 1, - height: availableHeight + tabsHeight, - flexDirection: "column", - children: [ - _jsx(Box, { - width: contentWidth, - borderStyle: "single", - borderTop: false, - borderLeft: false, - borderRight: false, - borderBottom: true, - paddingX: 1, - paddingY: 1, - flexDirection: "column", - flexShrink: 0, - children: _jsx(Box, { - flexDirection: "column", - children: _jsxs(Box, { - flexDirection: "row", - justifyContent: "space-between", - alignItems: "center", - children: [ - _jsx(Text, { - bold: true, - color: "cyan", - children: selectedServer, - }), - _jsx(Box, { - flexDirection: "row", - alignItems: "center", - children: - currentServerState && - _jsxs(_Fragment, { - children: [ - _jsxs(Text, { - color: getStatusColor( - currentServerState.status, - ), - children: [ - getStatusSymbol(currentServerState.status), - " ", - currentServerState.status, - ], - }), - _jsx(Text, { children: " " }), - (currentServerState?.status === "disconnected" || - currentServerState?.status === "error") && - _jsxs(Text, { - color: "cyan", - bold: true, - children: [ - "[", - _jsx(Text, { - underline: true, - children: "C", - }), - "onnect]", - ], - }), - (currentServerState?.status === "connected" || - currentServerState?.status === "connecting") && - _jsxs(Text, { - color: "red", - bold: true, - children: [ - "[", - _jsx(Text, { - underline: true, - children: "D", - }), - "isconnect]", - ], - }), - ], - }), - }), - ], - }), - }), - }), - _jsx(Tabs, { - activeTab: activeTab, - onTabChange: setActiveTab, - width: contentWidth, - counts: tabCounts, - focused: focus === "tabs", - showLogging: selectedServerConfig - ? getServerType(selectedServerConfig) === "stdio" - : false, - }), - _jsxs(Box, { - flexGrow: 1, - width: contentWidth, - borderTop: false, - borderLeft: false, - borderRight: false, - borderBottom: false, - children: [ - activeTab === "info" && - _jsx(InfoTab, { - serverName: selectedServer, - serverConfig: selectedServerConfig, - serverState: currentServerState, - width: contentWidth, - height: contentHeight, - focused: - focus === "tabContentList" || - focus === "tabContentDetails", - }), - currentServerState?.status === "connected" && inspectorClient - ? _jsxs(_Fragment, { - children: [ - activeTab === "resources" && - _jsx( - ResourcesTab, - { - resources: currentServerState.resources, - client: inspectorClient, - width: contentWidth, - height: contentHeight, - onCountChange: (count) => - setTabCounts((prev) => ({ - ...prev, - resources: count, - })), - focusedPane: - focus === "tabContentDetails" - ? "details" - : focus === "tabContentList" - ? "list" - : null, - onViewDetails: (resource) => - setDetailsModal({ - title: `Resource: ${resource.name || resource.uri || "Unknown"}`, - content: renderResourceDetails(resource), - }), - modalOpen: !!(toolTestModal || detailsModal), - }, - `resources-${selectedServer}`, - ), - activeTab === "prompts" && - _jsx( - PromptsTab, - { - prompts: currentServerState.prompts, - client: inspectorClient, - width: contentWidth, - height: contentHeight, - onCountChange: (count) => - setTabCounts((prev) => ({ - ...prev, - prompts: count, - })), - focusedPane: - focus === "tabContentDetails" - ? "details" - : focus === "tabContentList" - ? "list" - : null, - onViewDetails: (prompt) => - setDetailsModal({ - title: `Prompt: ${prompt.name || "Unknown"}`, - content: renderPromptDetails(prompt), - }), - modalOpen: !!(toolTestModal || detailsModal), - }, - `prompts-${selectedServer}`, - ), - activeTab === "tools" && - _jsx( - ToolsTab, - { - tools: currentServerState.tools, - client: inspectorClient, - width: contentWidth, - height: contentHeight, - onCountChange: (count) => - setTabCounts((prev) => ({ - ...prev, - tools: count, - })), - focusedPane: - focus === "tabContentDetails" - ? "details" - : focus === "tabContentList" - ? "list" - : null, - onTestTool: (tool) => - setToolTestModal({ - tool, - client: inspectorClient, - }), - onViewDetails: (tool) => - setDetailsModal({ - title: `Tool: ${tool.name || "Unknown"}`, - content: renderToolDetails(tool), - }), - modalOpen: !!(toolTestModal || detailsModal), - }, - `tools-${selectedServer}`, - ), - activeTab === "messages" && - _jsx(HistoryTab, { - serverName: selectedServer, - messages: inspectorMessages, - width: contentWidth, - height: contentHeight, - onCountChange: (count) => - setTabCounts((prev) => ({ - ...prev, - messages: count, - })), - focusedPane: - focus === "messagesDetail" - ? "details" - : focus === "messagesList" - ? "messages" - : null, - modalOpen: !!(toolTestModal || detailsModal), - onViewDetails: (message) => { - const label = - message.direction === "request" && - "method" in message.message - ? message.message.method - : message.direction === "response" - ? "Response" - : message.direction === "notification" && - "method" in message.message - ? message.message.method - : "Message"; - setDetailsModal({ - title: `Message: ${label}`, - content: renderMessageDetails(message), - }); - }, - }), - activeTab === "logging" && - _jsx(NotificationsTab, { - client: inspectorClient, - stderrLogs: inspectorStderrLogs, - width: contentWidth, - height: contentHeight, - onCountChange: (count) => - setTabCounts((prev) => ({ - ...prev, - logging: count, - })), - focused: - focus === "tabContentList" || - focus === "tabContentDetails", - }), - ], - }) - : activeTab !== "info" && selectedServer - ? _jsx(Box, { - paddingX: 1, - paddingY: 1, - children: _jsx(Text, { - dimColor: true, - children: "Server not connected", - }), - }) - : null, - ], - }), - ], - }), - ], - }), - toolTestModal && - _jsx(ToolTestModal, { - tool: toolTestModal.tool, - client: toolTestModal.client, - width: dimensions.width, - height: dimensions.height, - onClose: () => setToolTestModal(null), - }), - detailsModal && - _jsx(DetailsModal, { - title: detailsModal.title, - content: detailsModal.content, - width: dimensions.width, - height: dimensions.height, - onClose: () => setDetailsModal(null), - }), - ], - }); -} -export default App; diff --git a/tui/build/src/components/DetailsModal.js b/tui/build/src/components/DetailsModal.js deleted file mode 100644 index 4986f47fa..000000000 --- a/tui/build/src/components/DetailsModal.js +++ /dev/null @@ -1,82 +0,0 @@ -import { jsx as _jsx, jsxs as _jsxs } from "react/jsx-runtime"; -import React, { useRef } from "react"; -import { Box, Text, useInput } from "ink"; -import { ScrollView } from "ink-scroll-view"; -export function DetailsModal({ title, content, width, height, onClose }) { - const scrollViewRef = useRef(null); - // Use full terminal dimensions - const [terminalDimensions, setTerminalDimensions] = React.useState({ - width: process.stdout.columns || width, - height: process.stdout.rows || height, - }); - React.useEffect(() => { - const updateDimensions = () => { - setTerminalDimensions({ - width: process.stdout.columns || width, - height: process.stdout.rows || height, - }); - }; - process.stdout.on("resize", updateDimensions); - updateDimensions(); - return () => { - process.stdout.off("resize", updateDimensions); - }; - }, [width, height]); - // Handle escape to close and scrolling - useInput( - (input, key) => { - if (key.escape) { - onClose(); - } else if (key.downArrow) { - scrollViewRef.current?.scrollBy(1); - } else if (key.upArrow) { - scrollViewRef.current?.scrollBy(-1); - } else if (key.pageDown) { - const viewportHeight = scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(viewportHeight); - } else if (key.pageUp) { - const viewportHeight = scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(-viewportHeight); - } - }, - { isActive: true }, - ); - // Calculate modal dimensions - use almost full screen - const modalWidth = terminalDimensions.width - 2; - const modalHeight = terminalDimensions.height - 2; - return _jsx(Box, { - position: "absolute", - width: terminalDimensions.width, - height: terminalDimensions.height, - flexDirection: "column", - justifyContent: "center", - alignItems: "center", - children: _jsxs(Box, { - width: modalWidth, - height: modalHeight, - borderStyle: "single", - borderColor: "cyan", - flexDirection: "column", - paddingX: 1, - paddingY: 1, - backgroundColor: "black", - children: [ - _jsxs(Box, { - flexShrink: 0, - marginBottom: 1, - children: [ - _jsx(Text, { bold: true, color: "cyan", children: title }), - _jsx(Text, { children: " " }), - _jsx(Text, { dimColor: true, children: "(Press ESC to close)" }), - ], - }), - _jsx(Box, { - flexGrow: 1, - flexDirection: "column", - overflow: "hidden", - children: _jsx(ScrollView, { ref: scrollViewRef, children: content }), - }), - ], - }), - }); -} diff --git a/tui/build/src/components/HistoryTab.js b/tui/build/src/components/HistoryTab.js deleted file mode 100644 index 46b9650b2..000000000 --- a/tui/build/src/components/HistoryTab.js +++ /dev/null @@ -1,399 +0,0 @@ -import { - jsxs as _jsxs, - jsx as _jsx, - Fragment as _Fragment, -} from "react/jsx-runtime"; -import React, { useState, useEffect, useRef } from "react"; -import { Box, Text, useInput } from "ink"; -import { ScrollView } from "ink-scroll-view"; -export function HistoryTab({ - serverName, - messages, - width, - height, - onCountChange, - focusedPane = null, - onViewDetails, - modalOpen = false, -}) { - const [selectedIndex, setSelectedIndex] = useState(0); - const [leftScrollOffset, setLeftScrollOffset] = useState(0); - const scrollViewRef = useRef(null); - // Calculate visible area for left pane (accounting for header) - const leftPaneHeight = height - 2; // Subtract header space - const visibleMessages = messages.slice( - leftScrollOffset, - leftScrollOffset + leftPaneHeight, - ); - const selectedMessage = messages[selectedIndex] || null; - // Handle arrow key navigation and scrolling when focused - useInput( - (input, key) => { - if (focusedPane === "messages") { - if (key.upArrow) { - if (selectedIndex > 0) { - const newIndex = selectedIndex - 1; - setSelectedIndex(newIndex); - // Auto-scroll if selection goes above visible area - if (newIndex < leftScrollOffset) { - setLeftScrollOffset(newIndex); - } - } - } else if (key.downArrow) { - if (selectedIndex < messages.length - 1) { - const newIndex = selectedIndex + 1; - setSelectedIndex(newIndex); - // Auto-scroll if selection goes below visible area - if (newIndex >= leftScrollOffset + leftPaneHeight) { - setLeftScrollOffset(Math.max(0, newIndex - leftPaneHeight + 1)); - } - } - } else if (key.pageUp) { - setLeftScrollOffset(Math.max(0, leftScrollOffset - leftPaneHeight)); - setSelectedIndex(Math.max(0, selectedIndex - leftPaneHeight)); - } else if (key.pageDown) { - const maxScroll = Math.max(0, messages.length - leftPaneHeight); - setLeftScrollOffset( - Math.min(maxScroll, leftScrollOffset + leftPaneHeight), - ); - setSelectedIndex( - Math.min(messages.length - 1, selectedIndex + leftPaneHeight), - ); - } - return; - } - // details scrolling (only when details pane is focused) - if (focusedPane === "details") { - // Handle '+' key to view in full screen modal - if (input === "+" && selectedMessage && onViewDetails) { - onViewDetails(selectedMessage); - return; - } - if (key.upArrow) { - scrollViewRef.current?.scrollBy(-1); - } else if (key.downArrow) { - scrollViewRef.current?.scrollBy(1); - } else if (key.pageUp) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(-viewportHeight); - } else if (key.pageDown) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(viewportHeight); - } - } - }, - { isActive: !modalOpen && focusedPane !== undefined }, - ); - // Update count when messages change - React.useEffect(() => { - onCountChange?.(messages.length); - // eslint-disable-next-line react-hooks/exhaustive-deps - }, [messages.length]); - // Reset selection when messages change - useEffect(() => { - if (selectedIndex >= messages.length) { - setSelectedIndex(Math.max(0, messages.length - 1)); - } - }, [messages.length, selectedIndex]); - // Reset scroll when message selection changes - useEffect(() => { - scrollViewRef.current?.scrollTo(0); - }, [selectedIndex]); - const listWidth = Math.floor(width * 0.4); - const detailWidth = width - listWidth; - return _jsxs(Box, { - flexDirection: "row", - width: width, - height: height, - children: [ - _jsxs(Box, { - width: listWidth, - height: height, - borderStyle: "single", - borderTop: false, - borderBottom: false, - borderLeft: false, - borderRight: true, - flexDirection: "column", - paddingX: 1, - children: [ - _jsx(Box, { - paddingY: 1, - flexShrink: 0, - children: _jsxs(Text, { - bold: true, - backgroundColor: - focusedPane === "messages" ? "yellow" : undefined, - children: ["Messages (", messages.length, ")"], - }), - }), - messages.length === 0 - ? _jsx(Box, { - paddingY: 1, - children: _jsx(Text, { - dimColor: true, - children: "No messages", - }), - }) - : _jsx(Box, { - flexDirection: "column", - flexGrow: 1, - minHeight: 0, - children: visibleMessages.map((msg, visibleIndex) => { - const actualIndex = leftScrollOffset + visibleIndex; - const isSelected = actualIndex === selectedIndex; - let label; - if (msg.direction === "request" && "method" in msg.message) { - label = msg.message.method; - } else if (msg.direction === "response") { - if ("result" in msg.message) { - label = "Response (result)"; - } else if ("error" in msg.message) { - label = `Response (error: ${msg.message.error.code})`; - } else { - label = "Response"; - } - } else if ( - msg.direction === "notification" && - "method" in msg.message - ) { - label = msg.message.method; - } else { - label = "Unknown"; - } - const direction = - msg.direction === "request" - ? "→" - : msg.direction === "response" - ? "←" - : "•"; - const hasResponse = msg.response !== undefined; - return _jsx( - Box, - { - paddingY: 0, - children: _jsxs(Text, { - color: isSelected ? "white" : "white", - children: [ - isSelected ? "▶ " : " ", - direction, - " ", - label, - hasResponse - ? " ✓" - : msg.direction === "request" - ? " ..." - : "", - ], - }), - }, - msg.id, - ); - }), - }), - ], - }), - _jsx(Box, { - width: detailWidth, - height: height, - paddingX: 1, - flexDirection: "column", - flexShrink: 0, - borderStyle: "single", - borderTop: false, - borderBottom: false, - borderLeft: false, - borderRight: false, - children: selectedMessage - ? _jsxs(_Fragment, { - children: [ - _jsxs(Box, { - flexDirection: "row", - justifyContent: "space-between", - flexShrink: 0, - paddingTop: 1, - children: [ - _jsx(Text, { - bold: true, - backgroundColor: - focusedPane === "details" ? "yellow" : undefined, - ...(focusedPane === "details" ? {} : { color: "cyan" }), - children: - selectedMessage.direction === "request" && - "method" in selectedMessage.message - ? selectedMessage.message.method - : selectedMessage.direction === "response" - ? "Response" - : selectedMessage.direction === "notification" && - "method" in selectedMessage.message - ? selectedMessage.message.method - : "Message", - }), - _jsx(Text, { - dimColor: true, - children: selectedMessage.timestamp.toLocaleTimeString(), - }), - ], - }), - _jsxs(ScrollView, { - ref: scrollViewRef, - height: height - 5, - children: [ - _jsxs(Box, { - marginTop: 1, - flexDirection: "column", - flexShrink: 0, - children: [ - _jsxs(Text, { - bold: true, - children: ["Direction: ", selectedMessage.direction], - }), - selectedMessage.duration !== undefined && - _jsx(Box, { - marginTop: 1, - children: _jsxs(Text, { - dimColor: true, - children: [ - "Duration: ", - selectedMessage.duration, - "ms", - ], - }), - }), - ], - }), - selectedMessage.direction === "request" - ? _jsxs(_Fragment, { - children: [ - _jsx(Box, { - marginTop: 1, - flexShrink: 0, - children: _jsx(Text, { - bold: true, - children: "Request:", - }), - }), - JSON.stringify(selectedMessage.message, null, 2) - .split("\n") - .map((line, idx) => - _jsx( - Box, - { - marginTop: idx === 0 ? 1 : 0, - paddingLeft: 2, - flexShrink: 0, - children: _jsx(Text, { - dimColor: true, - children: line, - }), - }, - `req-${idx}`, - ), - ), - selectedMessage.response - ? _jsxs(_Fragment, { - children: [ - _jsx(Box, { - marginTop: 1, - flexShrink: 0, - children: _jsx(Text, { - bold: true, - children: "Response:", - }), - }), - JSON.stringify( - selectedMessage.response, - null, - 2, - ) - .split("\n") - .map((line, idx) => - _jsx( - Box, - { - marginTop: idx === 0 ? 1 : 0, - paddingLeft: 2, - flexShrink: 0, - children: _jsx(Text, { - dimColor: true, - children: line, - }), - }, - `resp-${idx}`, - ), - ), - ], - }) - : _jsx(Box, { - marginTop: 1, - flexShrink: 0, - children: _jsx(Text, { - dimColor: true, - italic: true, - children: "Waiting for response...", - }), - }), - ], - }) - : _jsxs(_Fragment, { - children: [ - _jsx(Box, { - marginTop: 1, - flexShrink: 0, - children: _jsx(Text, { - bold: true, - children: - selectedMessage.direction === "response" - ? "Response:" - : "Notification:", - }), - }), - JSON.stringify(selectedMessage.message, null, 2) - .split("\n") - .map((line, idx) => - _jsx( - Box, - { - marginTop: idx === 0 ? 1 : 0, - paddingLeft: 2, - flexShrink: 0, - children: _jsx(Text, { - dimColor: true, - children: line, - }), - }, - `msg-${idx}`, - ), - ), - ], - }), - ], - }), - focusedPane === "details" && - _jsx(Box, { - flexShrink: 0, - height: 1, - justifyContent: "center", - backgroundColor: "gray", - children: _jsx(Text, { - bold: true, - color: "white", - children: "\u2191/\u2193 to scroll, + to zoom", - }), - }), - ], - }) - : _jsx(Box, { - paddingY: 1, - flexShrink: 0, - children: _jsx(Text, { - dimColor: true, - children: "Select a message to view details", - }), - }), - }), - ], - }); -} diff --git a/tui/build/src/components/InfoTab.js b/tui/build/src/components/InfoTab.js deleted file mode 100644 index 7cc23c62a..000000000 --- a/tui/build/src/components/InfoTab.js +++ /dev/null @@ -1,330 +0,0 @@ -import { - jsx as _jsx, - jsxs as _jsxs, - Fragment as _Fragment, -} from "react/jsx-runtime"; -import { useRef } from "react"; -import { Box, Text, useInput } from "ink"; -import { ScrollView } from "ink-scroll-view"; -export function InfoTab({ - serverName, - serverConfig, - serverState, - width, - height, - focused = false, -}) { - const scrollViewRef = useRef(null); - // Handle keyboard input for scrolling - useInput( - (input, key) => { - if (focused) { - if (key.upArrow) { - scrollViewRef.current?.scrollBy(-1); - } else if (key.downArrow) { - scrollViewRef.current?.scrollBy(1); - } else if (key.pageUp) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(-viewportHeight); - } else if (key.pageDown) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(viewportHeight); - } - } - }, - { isActive: focused }, - ); - return _jsxs(Box, { - width: width, - height: height, - flexDirection: "column", - paddingX: 1, - children: [ - _jsx(Box, { - paddingY: 1, - flexShrink: 0, - children: _jsx(Text, { - bold: true, - backgroundColor: focused ? "yellow" : undefined, - children: "Info", - }), - }), - serverName - ? _jsxs(_Fragment, { - children: [ - _jsx(Box, { - height: height - 4, - overflow: "hidden", - paddingTop: 1, - children: _jsxs(ScrollView, { - ref: scrollViewRef, - height: height - 4, - children: [ - _jsx(Box, { - flexShrink: 0, - marginTop: 1, - children: _jsx(Text, { - bold: true, - children: "Server Configuration", - }), - }), - serverConfig - ? _jsx(Box, { - flexShrink: 0, - marginTop: 1, - paddingLeft: 2, - flexDirection: "column", - children: - serverConfig.type === undefined || - serverConfig.type === "stdio" - ? _jsxs(_Fragment, { - children: [ - _jsx(Text, { - dimColor: true, - children: "Type: stdio", - }), - _jsxs(Text, { - dimColor: true, - children: [ - "Command: ", - serverConfig.command, - ], - }), - serverConfig.args && - serverConfig.args.length > 0 && - _jsxs(Box, { - marginTop: 1, - flexDirection: "column", - children: [ - _jsx(Text, { - dimColor: true, - children: "Args:", - }), - serverConfig.args.map((arg, idx) => - _jsx( - Box, - { - paddingLeft: 2, - marginTop: idx === 0 ? 0 : 0, - children: _jsx(Text, { - dimColor: true, - children: arg, - }), - }, - `arg-${idx}`, - ), - ), - ], - }), - serverConfig.env && - Object.keys(serverConfig.env).length > - 0 && - _jsx(Box, { - marginTop: 1, - children: _jsxs(Text, { - dimColor: true, - children: [ - "Env:", - " ", - Object.entries(serverConfig.env) - .map(([k, v]) => `${k}=${v}`) - .join(", "), - ], - }), - }), - serverConfig.cwd && - _jsx(Box, { - marginTop: 1, - children: _jsxs(Text, { - dimColor: true, - children: ["CWD: ", serverConfig.cwd], - }), - }), - ], - }) - : serverConfig.type === "sse" - ? _jsxs(_Fragment, { - children: [ - _jsx(Text, { - dimColor: true, - children: "Type: sse", - }), - _jsxs(Text, { - dimColor: true, - children: ["URL: ", serverConfig.url], - }), - serverConfig.headers && - Object.keys(serverConfig.headers) - .length > 0 && - _jsx(Box, { - marginTop: 1, - children: _jsxs(Text, { - dimColor: true, - children: [ - "Headers:", - " ", - Object.entries( - serverConfig.headers, - ) - .map(([k, v]) => `${k}=${v}`) - .join(", "), - ], - }), - }), - ], - }) - : _jsxs(_Fragment, { - children: [ - _jsx(Text, { - dimColor: true, - children: "Type: streamableHttp", - }), - _jsxs(Text, { - dimColor: true, - children: ["URL: ", serverConfig.url], - }), - serverConfig.headers && - Object.keys(serverConfig.headers) - .length > 0 && - _jsx(Box, { - marginTop: 1, - children: _jsxs(Text, { - dimColor: true, - children: [ - "Headers:", - " ", - Object.entries( - serverConfig.headers, - ) - .map(([k, v]) => `${k}=${v}`) - .join(", "), - ], - }), - }), - ], - }), - }) - : _jsx(Box, { - marginTop: 1, - paddingLeft: 2, - children: _jsx(Text, { - dimColor: true, - children: "No configuration available", - }), - }), - serverState && - serverState.status === "connected" && - serverState.serverInfo && - _jsxs(_Fragment, { - children: [ - _jsx(Box, { - flexShrink: 0, - marginTop: 2, - children: _jsx(Text, { - bold: true, - children: "Server Information", - }), - }), - _jsxs(Box, { - flexShrink: 0, - marginTop: 1, - paddingLeft: 2, - flexDirection: "column", - children: [ - serverState.serverInfo.name && - _jsxs(Text, { - dimColor: true, - children: [ - "Name: ", - serverState.serverInfo.name, - ], - }), - serverState.serverInfo.version && - _jsx(Box, { - marginTop: 1, - children: _jsxs(Text, { - dimColor: true, - children: [ - "Version: ", - serverState.serverInfo.version, - ], - }), - }), - serverState.instructions && - _jsxs(Box, { - marginTop: 1, - flexDirection: "column", - children: [ - _jsx(Text, { - dimColor: true, - children: "Instructions:", - }), - _jsx(Box, { - paddingLeft: 2, - marginTop: 1, - children: _jsx(Text, { - dimColor: true, - children: serverState.instructions, - }), - }), - ], - }), - ], - }), - ], - }), - serverState && - serverState.status === "error" && - _jsxs(Box, { - flexShrink: 0, - marginTop: 2, - children: [ - _jsx(Text, { - bold: true, - color: "red", - children: "Error", - }), - serverState.error && - _jsx(Box, { - marginTop: 1, - paddingLeft: 2, - children: _jsx(Text, { - color: "red", - children: serverState.error, - }), - }), - ], - }), - serverState && - serverState.status === "disconnected" && - _jsx(Box, { - flexShrink: 0, - marginTop: 2, - children: _jsx(Text, { - dimColor: true, - children: "Server not connected", - }), - }), - ], - }), - }), - focused && - _jsx(Box, { - flexShrink: 0, - height: 1, - justifyContent: "center", - backgroundColor: "gray", - children: _jsx(Text, { - bold: true, - color: "white", - children: "\u2191/\u2193 to scroll, + to zoom", - }), - }), - ], - }) - : null, - ], - }); -} diff --git a/tui/build/src/components/NotificationsTab.js b/tui/build/src/components/NotificationsTab.js deleted file mode 100644 index 77ed842fe..000000000 --- a/tui/build/src/components/NotificationsTab.js +++ /dev/null @@ -1,91 +0,0 @@ -import { jsxs as _jsxs, jsx as _jsx } from "react/jsx-runtime"; -import { useEffect, useRef } from "react"; -import { Box, Text, useInput } from "ink"; -import { ScrollView } from "ink-scroll-view"; -export function NotificationsTab({ - client, - stderrLogs, - width, - height, - onCountChange, - focused = false, -}) { - const scrollViewRef = useRef(null); - const onCountChangeRef = useRef(onCountChange); - // Update ref when callback changes - useEffect(() => { - onCountChangeRef.current = onCountChange; - }, [onCountChange]); - useEffect(() => { - onCountChangeRef.current?.(stderrLogs.length); - // eslint-disable-next-line react-hooks/exhaustive-deps - }, [stderrLogs.length]); - // Handle keyboard input for scrolling - useInput( - (input, key) => { - if (focused) { - if (key.upArrow) { - scrollViewRef.current?.scrollBy(-1); - } else if (key.downArrow) { - scrollViewRef.current?.scrollBy(1); - } else if (key.pageUp) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(-viewportHeight); - } else if (key.pageDown) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(viewportHeight); - } - } - }, - { isActive: focused }, - ); - return _jsxs(Box, { - width: width, - height: height, - flexDirection: "column", - paddingX: 1, - children: [ - _jsx(Box, { - paddingY: 1, - flexShrink: 0, - children: _jsxs(Text, { - bold: true, - backgroundColor: focused ? "yellow" : undefined, - children: ["Logging (", stderrLogs.length, ")"], - }), - }), - stderrLogs.length === 0 - ? _jsx(Box, { - paddingY: 1, - children: _jsx(Text, { - dimColor: true, - children: "No stderr output yet", - }), - }) - : _jsx(ScrollView, { - ref: scrollViewRef, - height: height - 3, - children: stderrLogs.map((log, index) => - _jsxs( - Box, - { - paddingY: 0, - flexDirection: "row", - flexShrink: 0, - children: [ - _jsxs(Text, { - dimColor: true, - children: ["[", log.timestamp.toLocaleTimeString(), "] "], - }), - _jsx(Text, { color: "red", children: log.message }), - ], - }, - `log-${log.timestamp.getTime()}-${index}`, - ), - ), - }), - ], - }); -} diff --git a/tui/build/src/components/PromptsTab.js b/tui/build/src/components/PromptsTab.js deleted file mode 100644 index ec3aad67c..000000000 --- a/tui/build/src/components/PromptsTab.js +++ /dev/null @@ -1,236 +0,0 @@ -import { - jsxs as _jsxs, - jsx as _jsx, - Fragment as _Fragment, -} from "react/jsx-runtime"; -import { useState, useEffect, useRef } from "react"; -import { Box, Text, useInput } from "ink"; -import { ScrollView } from "ink-scroll-view"; -export function PromptsTab({ - prompts, - client, - width, - height, - onCountChange, - focusedPane = null, - onViewDetails, - modalOpen = false, -}) { - const [selectedIndex, setSelectedIndex] = useState(0); - const [error, setError] = useState(null); - const scrollViewRef = useRef(null); - // Handle arrow key navigation when focused - useInput( - (input, key) => { - if (focusedPane === "list") { - // Navigate the list - if (key.upArrow && selectedIndex > 0) { - setSelectedIndex(selectedIndex - 1); - } else if (key.downArrow && selectedIndex < prompts.length - 1) { - setSelectedIndex(selectedIndex + 1); - } - return; - } - if (focusedPane === "details") { - // Handle '+' key to view in full screen modal - if (input === "+" && selectedPrompt && onViewDetails) { - onViewDetails(selectedPrompt); - return; - } - // Scroll the details pane using ink-scroll-view - if (key.upArrow) { - scrollViewRef.current?.scrollBy(-1); - } else if (key.downArrow) { - scrollViewRef.current?.scrollBy(1); - } else if (key.pageUp) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(-viewportHeight); - } else if (key.pageDown) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(viewportHeight); - } - } - }, - { - isActive: - !modalOpen && (focusedPane === "list" || focusedPane === "details"), - }, - ); - // Reset scroll when selection changes - useEffect(() => { - scrollViewRef.current?.scrollTo(0); - }, [selectedIndex]); - // Reset selected index when prompts array changes (different server) - useEffect(() => { - setSelectedIndex(0); - }, [prompts]); - const selectedPrompt = prompts[selectedIndex] || null; - const listWidth = Math.floor(width * 0.4); - const detailWidth = width - listWidth; - return _jsxs(Box, { - flexDirection: "row", - width: width, - height: height, - children: [ - _jsxs(Box, { - width: listWidth, - height: height, - borderStyle: "single", - borderTop: false, - borderBottom: false, - borderLeft: false, - borderRight: true, - flexDirection: "column", - paddingX: 1, - children: [ - _jsx(Box, { - paddingY: 1, - children: _jsxs(Text, { - bold: true, - backgroundColor: focusedPane === "list" ? "yellow" : undefined, - children: ["Prompts (", prompts.length, ")"], - }), - }), - error - ? _jsx(Box, { - paddingY: 1, - children: _jsx(Text, { color: "red", children: error }), - }) - : prompts.length === 0 - ? _jsx(Box, { - paddingY: 1, - children: _jsx(Text, { - dimColor: true, - children: "No prompts available", - }), - }) - : _jsx(Box, { - flexDirection: "column", - flexGrow: 1, - children: prompts.map((prompt, index) => { - const isSelected = index === selectedIndex; - return _jsx( - Box, - { - paddingY: 0, - children: _jsxs(Text, { - children: [ - isSelected ? "▶ " : " ", - prompt.name || `Prompt ${index + 1}`, - ], - }), - }, - prompt.name || index, - ); - }), - }), - ], - }), - _jsx(Box, { - width: detailWidth, - height: height, - paddingX: 1, - flexDirection: "column", - overflow: "hidden", - children: selectedPrompt - ? _jsxs(_Fragment, { - children: [ - _jsx(Box, { - flexShrink: 0, - paddingTop: 1, - children: _jsx(Text, { - bold: true, - backgroundColor: - focusedPane === "details" ? "yellow" : undefined, - ...(focusedPane === "details" ? {} : { color: "cyan" }), - children: selectedPrompt.name, - }), - }), - _jsxs(ScrollView, { - ref: scrollViewRef, - height: height - 5, - children: [ - selectedPrompt.description && - _jsx(_Fragment, { - children: selectedPrompt.description - .split("\n") - .map((line, idx) => - _jsx( - Box, - { - marginTop: idx === 0 ? 1 : 0, - flexShrink: 0, - children: _jsx(Text, { - dimColor: true, - children: line, - }), - }, - `desc-${idx}`, - ), - ), - }), - selectedPrompt.arguments && - selectedPrompt.arguments.length > 0 && - _jsxs(_Fragment, { - children: [ - _jsx(Box, { - marginTop: 1, - flexShrink: 0, - children: _jsx(Text, { - bold: true, - children: "Arguments:", - }), - }), - selectedPrompt.arguments.map((arg, idx) => - _jsx( - Box, - { - marginTop: 1, - paddingLeft: 2, - flexShrink: 0, - children: _jsxs(Text, { - dimColor: true, - children: [ - "- ", - arg.name, - ":", - " ", - arg.description || arg.type || "string", - ], - }), - }, - `arg-${idx}`, - ), - ), - ], - }), - ], - }), - focusedPane === "details" && - _jsx(Box, { - flexShrink: 0, - height: 1, - justifyContent: "center", - backgroundColor: "gray", - children: _jsx(Text, { - bold: true, - color: "white", - children: "\u2191/\u2193 to scroll, + to zoom", - }), - }), - ], - }) - : _jsx(Box, { - paddingY: 1, - flexShrink: 0, - children: _jsx(Text, { - dimColor: true, - children: "Select a prompt to view details", - }), - }), - }), - ], - }); -} diff --git a/tui/build/src/components/ResourcesTab.js b/tui/build/src/components/ResourcesTab.js deleted file mode 100644 index ce297c5fc..000000000 --- a/tui/build/src/components/ResourcesTab.js +++ /dev/null @@ -1,221 +0,0 @@ -import { - jsxs as _jsxs, - jsx as _jsx, - Fragment as _Fragment, -} from "react/jsx-runtime"; -import { useState, useEffect, useRef } from "react"; -import { Box, Text, useInput } from "ink"; -import { ScrollView } from "ink-scroll-view"; -export function ResourcesTab({ - resources, - client, - width, - height, - onCountChange, - focusedPane = null, - onViewDetails, - modalOpen = false, -}) { - const [selectedIndex, setSelectedIndex] = useState(0); - const [error, setError] = useState(null); - const scrollViewRef = useRef(null); - // Handle arrow key navigation when focused - useInput( - (input, key) => { - if (focusedPane === "list") { - // Navigate the list - if (key.upArrow && selectedIndex > 0) { - setSelectedIndex(selectedIndex - 1); - } else if (key.downArrow && selectedIndex < resources.length - 1) { - setSelectedIndex(selectedIndex + 1); - } - return; - } - if (focusedPane === "details") { - // Handle '+' key to view in full screen modal - if (input === "+" && selectedResource && onViewDetails) { - onViewDetails(selectedResource); - return; - } - // Scroll the details pane using ink-scroll-view - if (key.upArrow) { - scrollViewRef.current?.scrollBy(-1); - } else if (key.downArrow) { - scrollViewRef.current?.scrollBy(1); - } else if (key.pageUp) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(-viewportHeight); - } else if (key.pageDown) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(viewportHeight); - } - } - }, - { - isActive: - !modalOpen && (focusedPane === "list" || focusedPane === "details"), - }, - ); - // Reset scroll when selection changes - useEffect(() => { - scrollViewRef.current?.scrollTo(0); - }, [selectedIndex]); - // Reset selected index when resources array changes (different server) - useEffect(() => { - setSelectedIndex(0); - }, [resources]); - const selectedResource = resources[selectedIndex] || null; - const listWidth = Math.floor(width * 0.4); - const detailWidth = width - listWidth; - return _jsxs(Box, { - flexDirection: "row", - width: width, - height: height, - children: [ - _jsxs(Box, { - width: listWidth, - height: height, - borderStyle: "single", - borderTop: false, - borderBottom: false, - borderLeft: false, - borderRight: true, - flexDirection: "column", - paddingX: 1, - children: [ - _jsx(Box, { - paddingY: 1, - children: _jsxs(Text, { - bold: true, - backgroundColor: focusedPane === "list" ? "yellow" : undefined, - children: ["Resources (", resources.length, ")"], - }), - }), - error - ? _jsx(Box, { - paddingY: 1, - children: _jsx(Text, { color: "red", children: error }), - }) - : resources.length === 0 - ? _jsx(Box, { - paddingY: 1, - children: _jsx(Text, { - dimColor: true, - children: "No resources available", - }), - }) - : _jsx(Box, { - flexDirection: "column", - flexGrow: 1, - children: resources.map((resource, index) => { - const isSelected = index === selectedIndex; - return _jsx( - Box, - { - paddingY: 0, - children: _jsxs(Text, { - children: [ - isSelected ? "▶ " : " ", - resource.name || - resource.uri || - `Resource ${index + 1}`, - ], - }), - }, - resource.uri || index, - ); - }), - }), - ], - }), - _jsx(Box, { - width: detailWidth, - height: height, - paddingX: 1, - flexDirection: "column", - overflow: "hidden", - children: selectedResource - ? _jsxs(_Fragment, { - children: [ - _jsx(Box, { - flexShrink: 0, - paddingTop: 1, - children: _jsx(Text, { - bold: true, - backgroundColor: - focusedPane === "details" ? "yellow" : undefined, - ...(focusedPane === "details" ? {} : { color: "cyan" }), - children: selectedResource.name || selectedResource.uri, - }), - }), - _jsxs(ScrollView, { - ref: scrollViewRef, - height: height - 5, - children: [ - selectedResource.description && - _jsx(_Fragment, { - children: selectedResource.description - .split("\n") - .map((line, idx) => - _jsx( - Box, - { - marginTop: idx === 0 ? 1 : 0, - flexShrink: 0, - children: _jsx(Text, { - dimColor: true, - children: line, - }), - }, - `desc-${idx}`, - ), - ), - }), - selectedResource.uri && - _jsx(Box, { - marginTop: 1, - flexShrink: 0, - children: _jsxs(Text, { - dimColor: true, - children: ["URI: ", selectedResource.uri], - }), - }), - selectedResource.mimeType && - _jsx(Box, { - marginTop: 1, - flexShrink: 0, - children: _jsxs(Text, { - dimColor: true, - children: ["MIME Type: ", selectedResource.mimeType], - }), - }), - ], - }), - focusedPane === "details" && - _jsx(Box, { - flexShrink: 0, - height: 1, - justifyContent: "center", - backgroundColor: "gray", - children: _jsx(Text, { - bold: true, - color: "white", - children: "\u2191/\u2193 to scroll, + to zoom", - }), - }), - ], - }) - : _jsx(Box, { - paddingY: 1, - flexShrink: 0, - children: _jsx(Text, { - dimColor: true, - children: "Select a resource to view details", - }), - }), - }), - ], - }); -} diff --git a/tui/build/src/components/Tabs.js b/tui/build/src/components/Tabs.js deleted file mode 100644 index 3c061ef02..000000000 --- a/tui/build/src/components/Tabs.js +++ /dev/null @@ -1,61 +0,0 @@ -import { jsx as _jsx, jsxs as _jsxs } from "react/jsx-runtime"; -import { Box, Text } from "ink"; -export const tabs = [ - { id: "info", label: "Info", accelerator: "i" }, - { id: "resources", label: "Resources", accelerator: "r" }, - { id: "prompts", label: "Prompts", accelerator: "p" }, - { id: "tools", label: "Tools", accelerator: "t" }, - { id: "messages", label: "Messages", accelerator: "m" }, - { id: "logging", label: "Logging", accelerator: "l" }, -]; -export function Tabs({ - activeTab, - onTabChange, - width, - counts = {}, - focused = false, - showLogging = true, -}) { - const visibleTabs = showLogging - ? tabs - : tabs.filter((tab) => tab.id !== "logging"); - return _jsx(Box, { - width: width, - borderStyle: "single", - borderTop: false, - borderLeft: false, - borderRight: false, - borderBottom: true, - flexDirection: "row", - justifyContent: "space-between", - flexWrap: "wrap", - paddingX: 1, - children: visibleTabs.map((tab) => { - const isActive = activeTab === tab.id; - const count = counts[tab.id]; - const countText = count !== undefined ? ` (${count})` : ""; - const firstChar = tab.label[0]; - const restOfLabel = tab.label.slice(1); - return _jsx( - Box, - { - flexShrink: 0, - children: _jsxs(Text, { - bold: isActive, - ...(isActive && focused - ? {} - : { color: isActive ? "cyan" : "gray" }), - backgroundColor: isActive && focused ? "yellow" : undefined, - children: [ - isActive ? "▶ " : " ", - _jsx(Text, { underline: true, children: firstChar }), - restOfLabel, - countText, - ], - }), - }, - tab.id, - ); - }), - }); -} diff --git a/tui/build/src/components/ToolTestModal.js b/tui/build/src/components/ToolTestModal.js deleted file mode 100644 index 18ab0ef08..000000000 --- a/tui/build/src/components/ToolTestModal.js +++ /dev/null @@ -1,289 +0,0 @@ -import { - jsx as _jsx, - jsxs as _jsxs, - Fragment as _Fragment, -} from "react/jsx-runtime"; -import React, { useState } from "react"; -import { Box, Text, useInput } from "ink"; -import { Form } from "ink-form"; -import { schemaToForm } from "../utils/schemaToForm.js"; -import { ScrollView } from "ink-scroll-view"; -export function ToolTestModal({ tool, client, width, height, onClose }) { - const [state, setState] = useState("form"); - const [result, setResult] = useState(null); - const scrollViewRef = React.useRef(null); - // Use full terminal dimensions instead of passed dimensions - const [terminalDimensions, setTerminalDimensions] = React.useState({ - width: process.stdout.columns || width, - height: process.stdout.rows || height, - }); - React.useEffect(() => { - const updateDimensions = () => { - setTerminalDimensions({ - width: process.stdout.columns || width, - height: process.stdout.rows || height, - }); - }; - process.stdout.on("resize", updateDimensions); - updateDimensions(); - return () => { - process.stdout.off("resize", updateDimensions); - }; - }, [width, height]); - const formStructure = tool?.inputSchema - ? schemaToForm(tool.inputSchema, tool.name || "Unknown Tool") - : { - title: `Test Tool: ${tool?.name || "Unknown"}`, - sections: [{ title: "Parameters", fields: [] }], - }; - // Reset state when modal closes - React.useEffect(() => { - return () => { - // Cleanup: reset state when component unmounts - setState("form"); - setResult(null); - }; - }, []); - // Handle all input when modal is open - prevents input from reaching underlying components - // When in form mode, only handle escape (form handles its own input) - // When in results mode, handle scrolling keys - useInput( - (input, key) => { - // Always handle escape to close modal - if (key.escape) { - setState("form"); - setResult(null); - onClose(); - return; - } - if (state === "form") { - // In form mode, let the form handle all other input - // Don't process anything else - this prevents input from reaching underlying components - return; - } - if (state === "results") { - // Allow scrolling in results view - if (key.downArrow) { - scrollViewRef.current?.scrollBy(1); - } else if (key.upArrow) { - scrollViewRef.current?.scrollBy(-1); - } else if (key.pageDown) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(viewportHeight); - } else if (key.pageUp) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(-viewportHeight); - } - } - }, - { isActive: true }, - ); - const handleFormSubmit = async (values) => { - if (!client || !tool) return; - setState("loading"); - const startTime = Date.now(); - try { - const response = await client.callTool({ - name: tool.name, - arguments: values, - }); - const duration = Date.now() - startTime; - // Handle MCP SDK response format - const output = response.isError - ? { error: true, content: response.content } - : response.structuredContent || response.content || response; - setResult({ - input: values, - output: response.isError ? null : output, - error: response.isError ? "Tool returned an error" : undefined, - errorDetails: response.isError ? output : undefined, - duration, - }); - setState("results"); - } catch (error) { - const duration = Date.now() - startTime; - const errorObj = - error instanceof Error - ? { message: error.message, name: error.name, stack: error.stack } - : { error: String(error) }; - setResult({ - input: values, - output: null, - error: error instanceof Error ? error.message : "Unknown error", - errorDetails: errorObj, - duration, - }); - setState("results"); - } - }; - // Calculate modal dimensions - use almost full screen - const modalWidth = terminalDimensions.width - 2; - const modalHeight = terminalDimensions.height - 2; - return _jsx(Box, { - position: "absolute", - width: terminalDimensions.width, - height: terminalDimensions.height, - flexDirection: "column", - justifyContent: "center", - alignItems: "center", - children: _jsxs(Box, { - width: modalWidth, - height: modalHeight, - borderStyle: "single", - borderColor: "cyan", - flexDirection: "column", - paddingX: 1, - paddingY: 1, - backgroundColor: "black", - children: [ - _jsxs(Box, { - flexShrink: 0, - marginBottom: 1, - children: [ - _jsx(Text, { - bold: true, - color: "cyan", - children: formStructure.title, - }), - _jsx(Text, { children: " " }), - _jsx(Text, { dimColor: true, children: "(Press ESC to close)" }), - ], - }), - _jsxs(Box, { - flexGrow: 1, - flexDirection: "column", - overflow: "hidden", - children: [ - state === "form" && - _jsx(Box, { - flexGrow: 1, - width: "100%", - children: _jsx(Form, { - form: formStructure, - onSubmit: handleFormSubmit, - }), - }), - state === "loading" && - _jsx(Box, { - flexGrow: 1, - justifyContent: "center", - alignItems: "center", - children: _jsx(Text, { - color: "yellow", - children: "Calling tool...", - }), - }), - state === "results" && - result && - _jsx(Box, { - flexGrow: 1, - flexDirection: "column", - overflow: "hidden", - children: _jsxs(ScrollView, { - ref: scrollViewRef, - children: [ - _jsx(Box, { - marginBottom: 1, - flexShrink: 0, - children: _jsxs(Text, { - bold: true, - color: "green", - children: ["Duration: ", result.duration, "ms"], - }), - }), - _jsxs(Box, { - marginBottom: 1, - flexShrink: 0, - flexDirection: "column", - children: [ - _jsx(Text, { - bold: true, - color: "cyan", - children: "Input:", - }), - _jsx(Box, { - paddingLeft: 2, - children: _jsx(Text, { - dimColor: true, - children: JSON.stringify(result.input, null, 2), - }), - }), - ], - }), - result.error - ? _jsxs(Box, { - flexShrink: 0, - flexDirection: "column", - children: [ - _jsx(Text, { - bold: true, - color: "red", - children: "Error:", - }), - _jsx(Box, { - paddingLeft: 2, - children: _jsx(Text, { - color: "red", - children: result.error, - }), - }), - result.errorDetails && - _jsxs(_Fragment, { - children: [ - _jsx(Box, { - marginTop: 1, - children: _jsx(Text, { - bold: true, - color: "red", - dimColor: true, - children: "Error Details:", - }), - }), - _jsx(Box, { - paddingLeft: 2, - children: _jsx(Text, { - dimColor: true, - children: JSON.stringify( - result.errorDetails, - null, - 2, - ), - }), - }), - ], - }), - ], - }) - : _jsxs(Box, { - flexShrink: 0, - flexDirection: "column", - children: [ - _jsx(Text, { - bold: true, - color: "green", - children: "Output:", - }), - _jsx(Box, { - paddingLeft: 2, - children: _jsx(Text, { - dimColor: true, - children: JSON.stringify( - result.output, - null, - 2, - ), - }), - }), - ], - }), - ], - }), - }), - ], - }), - ], - }), - }); -} diff --git a/tui/build/src/components/ToolsTab.js b/tui/build/src/components/ToolsTab.js deleted file mode 100644 index 8568be9a9..000000000 --- a/tui/build/src/components/ToolsTab.js +++ /dev/null @@ -1,259 +0,0 @@ -import { - jsxs as _jsxs, - jsx as _jsx, - Fragment as _Fragment, -} from "react/jsx-runtime"; -import { useState, useEffect, useRef } from "react"; -import { Box, Text, useInput } from "ink"; -import { ScrollView } from "ink-scroll-view"; -export function ToolsTab({ - tools, - client, - width, - height, - onCountChange, - focusedPane = null, - onTestTool, - onViewDetails, - modalOpen = false, -}) { - const [selectedIndex, setSelectedIndex] = useState(0); - const [error, setError] = useState(null); - const scrollViewRef = useRef(null); - const listWidth = Math.floor(width * 0.4); - const detailWidth = width - listWidth; - // Handle arrow key navigation when focused - useInput( - (input, key) => { - // Handle Enter key to test tool (works from both list and details) - if (key.return && selectedTool && client && onTestTool) { - onTestTool(selectedTool); - return; - } - if (focusedPane === "list") { - // Navigate the list - if (key.upArrow && selectedIndex > 0) { - setSelectedIndex(selectedIndex - 1); - } else if (key.downArrow && selectedIndex < tools.length - 1) { - setSelectedIndex(selectedIndex + 1); - } - return; - } - if (focusedPane === "details") { - // Handle '+' key to view in full screen modal - if (input === "+" && selectedTool && onViewDetails) { - onViewDetails(selectedTool); - return; - } - // Scroll the details pane using ink-scroll-view - if (key.upArrow) { - scrollViewRef.current?.scrollBy(-1); - } else if (key.downArrow) { - scrollViewRef.current?.scrollBy(1); - } else if (key.pageUp) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(-viewportHeight); - } else if (key.pageDown) { - const viewportHeight = - scrollViewRef.current?.getViewportHeight() || 1; - scrollViewRef.current?.scrollBy(viewportHeight); - } - } - }, - { - isActive: - !modalOpen && (focusedPane === "list" || focusedPane === "details"), - }, - ); - // Helper to calculate content lines for a tool - const calculateToolContentLines = (tool) => { - let lines = 1; // Name - if (tool.description) lines += tool.description.split("\n").length + 1; - if (tool.inputSchema) { - const schemaStr = JSON.stringify(tool.inputSchema, null, 2); - lines += schemaStr.split("\n").length + 2; // +2 for "Input Schema:" label - } - return lines; - }; - // Reset scroll when selection changes - useEffect(() => { - scrollViewRef.current?.scrollTo(0); - }, [selectedIndex]); - // Reset selected index when tools array changes (different server) - useEffect(() => { - setSelectedIndex(0); - }, [tools]); - const selectedTool = tools[selectedIndex] || null; - return _jsxs(Box, { - flexDirection: "row", - width: width, - height: height, - children: [ - _jsxs(Box, { - width: listWidth, - height: height, - borderStyle: "single", - borderTop: false, - borderBottom: false, - borderLeft: false, - borderRight: true, - flexDirection: "column", - paddingX: 1, - children: [ - _jsx(Box, { - paddingY: 1, - children: _jsxs(Text, { - bold: true, - backgroundColor: focusedPane === "list" ? "yellow" : undefined, - children: ["Tools (", tools.length, ")"], - }), - }), - error - ? _jsx(Box, { - paddingY: 1, - children: _jsx(Text, { color: "red", children: error }), - }) - : tools.length === 0 - ? _jsx(Box, { - paddingY: 1, - children: _jsx(Text, { - dimColor: true, - children: "No tools available", - }), - }) - : _jsx(Box, { - flexDirection: "column", - flexGrow: 1, - children: tools.map((tool, index) => { - const isSelected = index === selectedIndex; - return _jsx( - Box, - { - paddingY: 0, - children: _jsxs(Text, { - children: [ - isSelected ? "▶ " : " ", - tool.name || `Tool ${index + 1}`, - ], - }), - }, - tool.name || index, - ); - }), - }), - ], - }), - _jsx(Box, { - width: detailWidth, - height: height, - paddingX: 1, - flexDirection: "column", - overflow: "hidden", - children: selectedTool - ? _jsxs(_Fragment, { - children: [ - _jsxs(Box, { - flexShrink: 0, - flexDirection: "row", - justifyContent: "space-between", - paddingTop: 1, - children: [ - _jsx(Text, { - bold: true, - backgroundColor: - focusedPane === "details" ? "yellow" : undefined, - ...(focusedPane === "details" ? {} : { color: "cyan" }), - children: selectedTool.name, - }), - client && - _jsx(Text, { - children: _jsx(Text, { - color: "cyan", - bold: true, - children: "[Enter to Test]", - }), - }), - ], - }), - _jsxs(ScrollView, { - ref: scrollViewRef, - height: height - 5, - children: [ - selectedTool.description && - _jsx(_Fragment, { - children: selectedTool.description - .split("\n") - .map((line, idx) => - _jsx( - Box, - { - marginTop: idx === 0 ? 1 : 0, - flexShrink: 0, - children: _jsx(Text, { - dimColor: true, - children: line, - }), - }, - `desc-${idx}`, - ), - ), - }), - selectedTool.inputSchema && - _jsxs(_Fragment, { - children: [ - _jsx(Box, { - marginTop: 1, - flexShrink: 0, - children: _jsx(Text, { - bold: true, - children: "Input Schema:", - }), - }), - JSON.stringify(selectedTool.inputSchema, null, 2) - .split("\n") - .map((line, idx) => - _jsx( - Box, - { - marginTop: idx === 0 ? 1 : 0, - paddingLeft: 2, - flexShrink: 0, - children: _jsx(Text, { - dimColor: true, - children: line, - }), - }, - `schema-${idx}`, - ), - ), - ], - }), - ], - }), - focusedPane === "details" && - _jsx(Box, { - flexShrink: 0, - height: 1, - justifyContent: "center", - backgroundColor: "gray", - children: _jsx(Text, { - bold: true, - color: "white", - children: "\u2191/\u2193 to scroll, + to zoom", - }), - }), - ], - }) - : _jsx(Box, { - paddingY: 1, - flexShrink: 0, - children: _jsx(Text, { - dimColor: true, - children: "Select a tool to view details", - }), - }), - }), - ], - }); -} diff --git a/tui/build/src/hooks/useInspectorClient.js b/tui/build/src/hooks/useInspectorClient.js deleted file mode 100644 index 003862bea..000000000 --- a/tui/build/src/hooks/useInspectorClient.js +++ /dev/null @@ -1,136 +0,0 @@ -import { useState, useEffect, useCallback } from "react"; -/** - * React hook that subscribes to InspectorClient events and provides reactive state - */ -export function useInspectorClient(inspectorClient) { - const [status, setStatus] = useState( - inspectorClient?.getStatus() ?? "disconnected", - ); - const [messages, setMessages] = useState( - inspectorClient?.getMessages() ?? [], - ); - const [stderrLogs, setStderrLogs] = useState( - inspectorClient?.getStderrLogs() ?? [], - ); - const [tools, setTools] = useState(inspectorClient?.getTools() ?? []); - const [resources, setResources] = useState( - inspectorClient?.getResources() ?? [], - ); - const [prompts, setPrompts] = useState(inspectorClient?.getPrompts() ?? []); - const [capabilities, setCapabilities] = useState( - inspectorClient?.getCapabilities(), - ); - const [serverInfo, setServerInfo] = useState( - inspectorClient?.getServerInfo(), - ); - const [instructions, setInstructions] = useState( - inspectorClient?.getInstructions(), - ); - // Subscribe to all InspectorClient events - useEffect(() => { - if (!inspectorClient) { - setStatus("disconnected"); - setMessages([]); - setStderrLogs([]); - setTools([]); - setResources([]); - setPrompts([]); - setCapabilities(undefined); - setServerInfo(undefined); - setInstructions(undefined); - return; - } - // Initial state - setStatus(inspectorClient.getStatus()); - setMessages(inspectorClient.getMessages()); - setStderrLogs(inspectorClient.getStderrLogs()); - setTools(inspectorClient.getTools()); - setResources(inspectorClient.getResources()); - setPrompts(inspectorClient.getPrompts()); - setCapabilities(inspectorClient.getCapabilities()); - setServerInfo(inspectorClient.getServerInfo()); - setInstructions(inspectorClient.getInstructions()); - // Event handlers - const onStatusChange = (newStatus) => { - setStatus(newStatus); - }; - const onMessagesChange = () => { - setMessages(inspectorClient.getMessages()); - }; - const onStderrLogsChange = () => { - setStderrLogs(inspectorClient.getStderrLogs()); - }; - const onToolsChange = (newTools) => { - setTools(newTools); - }; - const onResourcesChange = (newResources) => { - setResources(newResources); - }; - const onPromptsChange = (newPrompts) => { - setPrompts(newPrompts); - }; - const onCapabilitiesChange = (newCapabilities) => { - setCapabilities(newCapabilities); - }; - const onServerInfoChange = (newServerInfo) => { - setServerInfo(newServerInfo); - }; - const onInstructionsChange = (newInstructions) => { - setInstructions(newInstructions); - }; - // Subscribe to events - inspectorClient.on("statusChange", onStatusChange); - inspectorClient.on("messagesChange", onMessagesChange); - inspectorClient.on("stderrLogsChange", onStderrLogsChange); - inspectorClient.on("toolsChange", onToolsChange); - inspectorClient.on("resourcesChange", onResourcesChange); - inspectorClient.on("promptsChange", onPromptsChange); - inspectorClient.on("capabilitiesChange", onCapabilitiesChange); - inspectorClient.on("serverInfoChange", onServerInfoChange); - inspectorClient.on("instructionsChange", onInstructionsChange); - // Cleanup - return () => { - inspectorClient.off("statusChange", onStatusChange); - inspectorClient.off("messagesChange", onMessagesChange); - inspectorClient.off("stderrLogsChange", onStderrLogsChange); - inspectorClient.off("toolsChange", onToolsChange); - inspectorClient.off("resourcesChange", onResourcesChange); - inspectorClient.off("promptsChange", onPromptsChange); - inspectorClient.off("capabilitiesChange", onCapabilitiesChange); - inspectorClient.off("serverInfoChange", onServerInfoChange); - inspectorClient.off("instructionsChange", onInstructionsChange); - }; - }, [inspectorClient]); - const connect = useCallback(async () => { - if (!inspectorClient) return; - await inspectorClient.connect(); - }, [inspectorClient]); - const disconnect = useCallback(async () => { - if (!inspectorClient) return; - await inspectorClient.disconnect(); - }, [inspectorClient]); - const clearMessages = useCallback(() => { - if (!inspectorClient) return; - inspectorClient.clearMessages(); - }, [inspectorClient]); - const clearStderrLogs = useCallback(() => { - if (!inspectorClient) return; - inspectorClient.clearStderrLogs(); - }, [inspectorClient]); - return { - status, - messages, - stderrLogs, - tools, - resources, - prompts, - capabilities, - serverInfo, - instructions, - client: inspectorClient?.getClient() ?? null, - connect, - disconnect, - clearMessages, - clearStderrLogs, - }; -} diff --git a/tui/build/src/hooks/useMCPClient.js b/tui/build/src/hooks/useMCPClient.js deleted file mode 100644 index 7bf30e99b..000000000 --- a/tui/build/src/hooks/useMCPClient.js +++ /dev/null @@ -1,115 +0,0 @@ -import { useState, useRef, useCallback } from "react"; -import { Client } from "@modelcontextprotocol/sdk/client/index.js"; -import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; -import { MessageTrackingTransport } from "../utils/messageTrackingTransport.js"; -export function useMCPClient(serverName, config, messageTracking) { - const [connection, setConnection] = useState(null); - const clientRef = useRef(null); - const messageTrackingRef = useRef(messageTracking); - const isMountedRef = useRef(true); - // Update ref when messageTracking changes - if (messageTracking) { - messageTrackingRef.current = messageTracking; - } - const connect = useCallback(async () => { - if (!serverName || !config) { - return null; - } - // If already connected, return existing client - if (clientRef.current && connection?.status === "connected") { - return clientRef.current; - } - setConnection({ - name: serverName, - config, - client: null, - status: "connecting", - error: null, - }); - try { - // Only support stdio in useMCPClient hook (legacy support) - // For full transport support, use the transport creation in App.tsx - if ( - "type" in config && - config.type !== "stdio" && - config.type !== undefined - ) { - throw new Error( - `Transport type ${config.type} not supported in useMCPClient hook`, - ); - } - const stdioConfig = config; - const baseTransport = new StdioClientTransport({ - command: stdioConfig.command, - args: stdioConfig.args || [], - env: stdioConfig.env, - }); - // Wrap with message tracking transport if message tracking is enabled - const transport = messageTrackingRef.current - ? new MessageTrackingTransport( - baseTransport, - messageTrackingRef.current, - ) - : baseTransport; - const client = new Client( - { - name: "mcp-inspect", - version: "1.0.0", - }, - { - capabilities: {}, - }, - ); - await client.connect(transport); - if (!isMountedRef.current) { - await client.close(); - return null; - } - clientRef.current = client; - setConnection({ - name: serverName, - config, - client, - status: "connected", - error: null, - }); - return client; - } catch (error) { - if (!isMountedRef.current) return null; - setConnection({ - name: serverName, - config, - client: null, - status: "error", - error: error instanceof Error ? error.message : "Unknown error", - }); - return null; - } - }, [serverName, config, connection?.status]); - const disconnect = useCallback(async () => { - if (clientRef.current) { - try { - await clientRef.current.close(); - } catch (error) { - // Ignore errors on close - } - clientRef.current = null; - } - if (serverName && config) { - setConnection({ - name: serverName, - config, - client: null, - status: "disconnected", - error: null, - }); - } else { - setConnection(null); - } - }, [serverName, config]); - return { - connection, - connect, - disconnect, - }; -} diff --git a/tui/build/src/hooks/useMessageTracking.js b/tui/build/src/hooks/useMessageTracking.js deleted file mode 100644 index fb8a63776..000000000 --- a/tui/build/src/hooks/useMessageTracking.js +++ /dev/null @@ -1,131 +0,0 @@ -import { useState, useCallback, useRef } from "react"; -export function useMessageTracking() { - const [history, setHistory] = useState({}); - const pendingRequestsRef = useRef(new Map()); - const trackRequest = useCallback((serverName, message) => { - const entry = { - id: `${serverName}-${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "request", - message, - }; - if ("id" in message && message.id !== null && message.id !== undefined) { - pendingRequestsRef.current.set(message.id, { - timestamp: entry.timestamp, - serverName, - }); - } - setHistory((prev) => ({ - ...prev, - [serverName]: [...(prev[serverName] || []), entry], - })); - return entry.id; - }, []); - const trackResponse = useCallback((serverName, message) => { - if (!("id" in message) || message.id === undefined) { - // Response without an ID (shouldn't happen, but handle it) - return; - } - const entryId = message.id; - const pending = pendingRequestsRef.current.get(entryId); - if (pending && pending.serverName === serverName) { - pendingRequestsRef.current.delete(entryId); - const duration = Date.now() - pending.timestamp.getTime(); - setHistory((prev) => { - const serverHistory = prev[serverName] || []; - // Find the matching request by message ID - const requestIndex = serverHistory.findIndex( - (e) => - e.direction === "request" && - "id" in e.message && - e.message.id === entryId, - ); - if (requestIndex !== -1) { - // Update the request entry with the response - const updatedHistory = [...serverHistory]; - updatedHistory[requestIndex] = { - ...updatedHistory[requestIndex], - response: message, - duration, - }; - return { ...prev, [serverName]: updatedHistory }; - } - // If no matching request found, create a new entry - const newEntry = { - id: `${serverName}-${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "response", - message, - duration: 0, - }; - return { - ...prev, - [serverName]: [...serverHistory, newEntry], - }; - }); - } else { - // Response without a matching request (might be from a different server or orphaned) - setHistory((prev) => { - const serverHistory = prev[serverName] || []; - // Check if there's a matching request in the history - const requestIndex = serverHistory.findIndex( - (e) => - e.direction === "request" && - "id" in e.message && - e.message.id === entryId, - ); - if (requestIndex !== -1) { - // Update the request entry with the response - const updatedHistory = [...serverHistory]; - updatedHistory[requestIndex] = { - ...updatedHistory[requestIndex], - response: message, - }; - return { ...prev, [serverName]: updatedHistory }; - } - // Create a new entry for orphaned response - const newEntry = { - id: `${serverName}-${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "response", - message, - }; - return { - ...prev, - [serverName]: [...serverHistory, newEntry], - }; - }); - } - }, []); - const trackNotification = useCallback((serverName, message) => { - const entry = { - id: `${serverName}-${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "notification", - message, - }; - setHistory((prev) => ({ - ...prev, - [serverName]: [...(prev[serverName] || []), entry], - })); - }, []); - const clearHistory = useCallback((serverName) => { - if (serverName) { - setHistory((prev) => { - const updated = { ...prev }; - delete updated[serverName]; - return updated; - }); - } else { - setHistory({}); - pendingRequestsRef.current.clear(); - } - }, []); - return { - history, - trackRequest, - trackResponse, - trackNotification, - clearHistory, - }; -} diff --git a/tui/build/src/mcp/client.js b/tui/build/src/mcp/client.js deleted file mode 100644 index fe3ef7a71..000000000 --- a/tui/build/src/mcp/client.js +++ /dev/null @@ -1,15 +0,0 @@ -import { Client } from "@modelcontextprotocol/sdk/client/index.js"; -/** - * Creates a new MCP client with standard configuration - */ -export function createClient(transport) { - return new Client( - { - name: "mcp-inspect", - version: "1.0.5", - }, - { - capabilities: {}, - }, - ); -} diff --git a/tui/build/src/mcp/config.js b/tui/build/src/mcp/config.js deleted file mode 100644 index 64431932b..000000000 --- a/tui/build/src/mcp/config.js +++ /dev/null @@ -1,24 +0,0 @@ -import { readFileSync } from "fs"; -import { resolve } from "path"; -/** - * Loads and validates an MCP servers configuration file - * @param configPath - Path to the config file (relative to process.cwd() or absolute) - * @returns The parsed MCPConfig - * @throws Error if the file cannot be loaded, parsed, or is invalid - */ -export function loadMcpServersConfig(configPath) { - try { - const resolvedPath = resolve(process.cwd(), configPath); - const configContent = readFileSync(resolvedPath, "utf-8"); - const config = JSON.parse(configContent); - if (!config.mcpServers) { - throw new Error("Configuration file must contain an mcpServers element"); - } - return config; - } catch (error) { - if (error instanceof Error) { - throw new Error(`Error loading configuration: ${error.message}`); - } - throw new Error("Error loading configuration: Unknown error"); - } -} diff --git a/tui/build/src/mcp/index.js b/tui/build/src/mcp/index.js deleted file mode 100644 index f0232999c..000000000 --- a/tui/build/src/mcp/index.js +++ /dev/null @@ -1,7 +0,0 @@ -// Main MCP client module -// Re-exports the primary API for MCP client/server interaction -export { InspectorClient } from "./inspectorClient.js"; -export { createTransport, getServerType } from "./transport.js"; -export { createClient } from "./client.js"; -export { MessageTrackingTransport } from "./messageTrackingTransport.js"; -export { loadMcpServersConfig } from "./config.js"; diff --git a/tui/build/src/mcp/inspectorClient.js b/tui/build/src/mcp/inspectorClient.js deleted file mode 100644 index 3f89a442d..000000000 --- a/tui/build/src/mcp/inspectorClient.js +++ /dev/null @@ -1,332 +0,0 @@ -import { createTransport } from "./transport.js"; -import { createClient } from "./client.js"; -import { MessageTrackingTransport } from "./messageTrackingTransport.js"; -import { EventEmitter } from "events"; -/** - * InspectorClient wraps an MCP Client and provides: - * - Message tracking and storage - * - Stderr log tracking and storage (for stdio transports) - * - Event emitter interface for React hooks - * - Access to client functionality (prompts, resources, tools) - */ -export class InspectorClient extends EventEmitter { - transportConfig; - client = null; - transport = null; - baseTransport = null; - messages = []; - stderrLogs = []; - maxMessages; - maxStderrLogEvents; - status = "disconnected"; - // Server data - tools = []; - resources = []; - prompts = []; - capabilities; - serverInfo; - instructions; - constructor(transportConfig, options = {}) { - super(); - this.transportConfig = transportConfig; - this.maxMessages = options.maxMessages ?? 1000; - this.maxStderrLogEvents = options.maxStderrLogEvents ?? 1000; - // Set up message tracking callbacks - const messageTracking = { - trackRequest: (message) => { - const entry = { - id: `${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "request", - message, - }; - this.addMessage(entry); - }, - trackResponse: (message) => { - const messageId = message.id; - // Find the matching request by message ID - const requestIndex = this.messages.findIndex( - (e) => - e.direction === "request" && - "id" in e.message && - e.message.id === messageId, - ); - if (requestIndex !== -1) { - // Update the request entry with the response - this.updateMessageResponse(requestIndex, message); - } else { - // No matching request found, create orphaned response entry - const entry = { - id: `${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "response", - message, - }; - this.addMessage(entry); - } - }, - trackNotification: (message) => { - const entry = { - id: `${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "notification", - message, - }; - this.addMessage(entry); - }, - }; - // Create transport with stderr logging if needed - const transportOptions = { - pipeStderr: options.pipeStderr ?? false, - onStderr: (entry) => { - this.addStderrLog(entry); - }, - }; - const { transport: baseTransport } = createTransport( - transportConfig, - transportOptions, - ); - // Store base transport for event listeners (always listen to actual transport, not wrapper) - this.baseTransport = baseTransport; - // Wrap with MessageTrackingTransport if we're tracking messages - this.transport = - this.maxMessages > 0 - ? new MessageTrackingTransport(baseTransport, messageTracking) - : baseTransport; - // Set up transport event listeners on base transport to track disconnections - this.baseTransport.onclose = () => { - if (this.status !== "disconnected") { - this.status = "disconnected"; - this.emit("statusChange", this.status); - this.emit("disconnect"); - } - }; - this.baseTransport.onerror = (error) => { - this.status = "error"; - this.emit("statusChange", this.status); - this.emit("error", error); - }; - // Create client - this.client = createClient(this.transport); - } - /** - * Connect to the MCP server - */ - async connect() { - if (!this.client || !this.transport) { - throw new Error("Client or transport not initialized"); - } - // If already connected, return early - if (this.status === "connected") { - return; - } - try { - this.status = "connecting"; - this.emit("statusChange", this.status); - await this.client.connect(this.transport); - this.status = "connected"; - this.emit("statusChange", this.status); - this.emit("connect"); - // Auto-fetch server data on connect - await this.fetchServerData(); - } catch (error) { - this.status = "error"; - this.emit("statusChange", this.status); - this.emit("error", error); - throw error; - } - } - /** - * Disconnect from the MCP server - */ - async disconnect() { - if (this.client) { - try { - await this.client.close(); - } catch (error) { - // Ignore errors on close - } - } - // Update status - transport onclose handler will also fire, but we update here too - if (this.status !== "disconnected") { - this.status = "disconnected"; - this.emit("statusChange", this.status); - this.emit("disconnect"); - } - } - /** - * Get the underlying MCP Client - */ - getClient() { - if (!this.client) { - throw new Error("Client not initialized"); - } - return this.client; - } - /** - * Get all messages - */ - getMessages() { - return [...this.messages]; - } - /** - * Get all stderr logs - */ - getStderrLogs() { - return [...this.stderrLogs]; - } - /** - * Clear all messages - */ - clearMessages() { - this.messages = []; - this.emit("messagesChange"); - } - /** - * Clear all stderr logs - */ - clearStderrLogs() { - this.stderrLogs = []; - this.emit("stderrLogsChange"); - } - /** - * Get the current connection status - */ - getStatus() { - return this.status; - } - /** - * Get the MCP server configuration used to create this client - */ - getTransportConfig() { - return this.transportConfig; - } - /** - * Get all tools - */ - getTools() { - return [...this.tools]; - } - /** - * Get all resources - */ - getResources() { - return [...this.resources]; - } - /** - * Get all prompts - */ - getPrompts() { - return [...this.prompts]; - } - /** - * Get server capabilities - */ - getCapabilities() { - return this.capabilities; - } - /** - * Get server info (name, version) - */ - getServerInfo() { - return this.serverInfo; - } - /** - * Get server instructions - */ - getInstructions() { - return this.instructions; - } - /** - * Fetch server data (capabilities, tools, resources, prompts, serverInfo, instructions) - * Called automatically on connect, but can be called manually if needed. - * TODO: Add support for listChanged notifications to auto-refresh when server data changes - */ - async fetchServerData() { - if (!this.client) { - return; - } - try { - // Get server capabilities - this.capabilities = this.client.getServerCapabilities(); - this.emit("capabilitiesChange", this.capabilities); - // Get server info (name, version) and instructions - this.serverInfo = this.client.getServerVersion(); - this.instructions = this.client.getInstructions(); - this.emit("serverInfoChange", this.serverInfo); - if (this.instructions !== undefined) { - this.emit("instructionsChange", this.instructions); - } - // Query resources, prompts, and tools based on capabilities - if (this.capabilities?.resources) { - try { - const result = await this.client.listResources(); - this.resources = result.resources || []; - this.emit("resourcesChange", this.resources); - } catch (err) { - // Ignore errors, just leave empty - this.resources = []; - this.emit("resourcesChange", this.resources); - } - } - if (this.capabilities?.prompts) { - try { - const result = await this.client.listPrompts(); - this.prompts = result.prompts || []; - this.emit("promptsChange", this.prompts); - } catch (err) { - // Ignore errors, just leave empty - this.prompts = []; - this.emit("promptsChange", this.prompts); - } - } - if (this.capabilities?.tools) { - try { - const result = await this.client.listTools(); - this.tools = result.tools || []; - this.emit("toolsChange", this.tools); - } catch (err) { - // Ignore errors, just leave empty - this.tools = []; - this.emit("toolsChange", this.tools); - } - } - } catch (error) { - // If fetching fails, we still consider the connection successful - // but log the error - this.emit("error", error); - } - } - addMessage(entry) { - if (this.maxMessages > 0 && this.messages.length >= this.maxMessages) { - // Remove oldest message - this.messages.shift(); - } - this.messages.push(entry); - this.emit("message", entry); - this.emit("messagesChange"); - } - updateMessageResponse(requestIndex, response) { - const requestEntry = this.messages[requestIndex]; - const duration = Date.now() - requestEntry.timestamp.getTime(); - this.messages[requestIndex] = { - ...requestEntry, - response, - duration, - }; - this.emit("message", this.messages[requestIndex]); - this.emit("messagesChange"); - } - addStderrLog(entry) { - if ( - this.maxStderrLogEvents > 0 && - this.stderrLogs.length >= this.maxStderrLogEvents - ) { - // Remove oldest stderr log - this.stderrLogs.shift(); - } - this.stderrLogs.push(entry); - this.emit("stderrLog", entry); - this.emit("stderrLogsChange"); - } -} diff --git a/tui/build/src/mcp/messageTrackingTransport.js b/tui/build/src/mcp/messageTrackingTransport.js deleted file mode 100644 index 2d6966a0e..000000000 --- a/tui/build/src/mcp/messageTrackingTransport.js +++ /dev/null @@ -1,71 +0,0 @@ -// Transport wrapper that intercepts all messages for tracking -export class MessageTrackingTransport { - baseTransport; - callbacks; - constructor(baseTransport, callbacks) { - this.baseTransport = baseTransport; - this.callbacks = callbacks; - } - async start() { - return this.baseTransport.start(); - } - async send(message, options) { - // Track outgoing requests (only requests have a method and are sent by the client) - if ("method" in message && "id" in message) { - this.callbacks.trackRequest?.(message); - } - return this.baseTransport.send(message, options); - } - async close() { - return this.baseTransport.close(); - } - get onclose() { - return this.baseTransport.onclose; - } - set onclose(handler) { - this.baseTransport.onclose = handler; - } - get onerror() { - return this.baseTransport.onerror; - } - set onerror(handler) { - this.baseTransport.onerror = handler; - } - get onmessage() { - return this.baseTransport.onmessage; - } - set onmessage(handler) { - if (handler) { - // Wrap the handler to track incoming messages - this.baseTransport.onmessage = (message, extra) => { - // Track incoming messages - if ( - "id" in message && - message.id !== null && - message.id !== undefined - ) { - // Check if it's a response (has 'result' or 'error' property) - if ("result" in message || "error" in message) { - this.callbacks.trackResponse?.(message); - } else if ("method" in message) { - // This is a request coming from the server - this.callbacks.trackRequest?.(message); - } - } else if ("method" in message) { - // Notification (no ID, has method) - this.callbacks.trackNotification?.(message); - } - // Call the original handler - handler(message, extra); - }; - } else { - this.baseTransport.onmessage = undefined; - } - } - get sessionId() { - return this.baseTransport.sessionId; - } - get setProtocolVersion() { - return this.baseTransport.setProtocolVersion; - } -} diff --git a/tui/build/src/mcp/transport.js b/tui/build/src/mcp/transport.js deleted file mode 100644 index 01f57294e..000000000 --- a/tui/build/src/mcp/transport.js +++ /dev/null @@ -1,70 +0,0 @@ -import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; -import { SSEClientTransport } from "@modelcontextprotocol/sdk/client/sse.js"; -import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"; -export function getServerType(config) { - if ("type" in config) { - if (config.type === "sse") return "sse"; - if (config.type === "streamableHttp") return "streamableHttp"; - } - return "stdio"; -} -/** - * Creates the appropriate transport for an MCP server configuration - */ -export function createTransport(config, options = {}) { - const serverType = getServerType(config); - const { onStderr, pipeStderr = false } = options; - if (serverType === "stdio") { - const stdioConfig = config; - const transport = new StdioClientTransport({ - command: stdioConfig.command, - args: stdioConfig.args || [], - env: stdioConfig.env, - cwd: stdioConfig.cwd, - stderr: pipeStderr ? "pipe" : undefined, - }); - // Set up stderr listener if requested - if (pipeStderr && transport.stderr && onStderr) { - transport.stderr.on("data", (data) => { - const logEntry = data.toString().trim(); - if (logEntry) { - onStderr({ - timestamp: new Date(), - message: logEntry, - }); - } - }); - } - return { transport: transport }; - } else if (serverType === "sse") { - const sseConfig = config; - const url = new URL(sseConfig.url); - // Merge headers and requestInit - const eventSourceInit = { - ...sseConfig.eventSourceInit, - ...(sseConfig.headers && { headers: sseConfig.headers }), - }; - const requestInit = { - ...sseConfig.requestInit, - ...(sseConfig.headers && { headers: sseConfig.headers }), - }; - const transport = new SSEClientTransport(url, { - eventSourceInit, - requestInit, - }); - return { transport }; - } else { - // streamableHttp - const httpConfig = config; - const url = new URL(httpConfig.url); - // Merge headers and requestInit - const requestInit = { - ...httpConfig.requestInit, - ...(httpConfig.headers && { headers: httpConfig.headers }), - }; - const transport = new StreamableHTTPClientTransport(url, { - requestInit, - }); - return { transport }; - } -} diff --git a/tui/build/src/mcp/types.js b/tui/build/src/mcp/types.js deleted file mode 100644 index cb0ff5c3b..000000000 --- a/tui/build/src/mcp/types.js +++ /dev/null @@ -1 +0,0 @@ -export {}; diff --git a/tui/build/src/types.js b/tui/build/src/types.js deleted file mode 100644 index cb0ff5c3b..000000000 --- a/tui/build/src/types.js +++ /dev/null @@ -1 +0,0 @@ -export {}; diff --git a/tui/build/src/types/focus.js b/tui/build/src/types/focus.js deleted file mode 100644 index cb0ff5c3b..000000000 --- a/tui/build/src/types/focus.js +++ /dev/null @@ -1 +0,0 @@ -export {}; diff --git a/tui/build/src/types/messages.js b/tui/build/src/types/messages.js deleted file mode 100644 index cb0ff5c3b..000000000 --- a/tui/build/src/types/messages.js +++ /dev/null @@ -1 +0,0 @@ -export {}; diff --git a/tui/build/src/utils/client.js b/tui/build/src/utils/client.js deleted file mode 100644 index fe3ef7a71..000000000 --- a/tui/build/src/utils/client.js +++ /dev/null @@ -1,15 +0,0 @@ -import { Client } from "@modelcontextprotocol/sdk/client/index.js"; -/** - * Creates a new MCP client with standard configuration - */ -export function createClient(transport) { - return new Client( - { - name: "mcp-inspect", - version: "1.0.5", - }, - { - capabilities: {}, - }, - ); -} diff --git a/tui/build/src/utils/config.js b/tui/build/src/utils/config.js deleted file mode 100644 index 64431932b..000000000 --- a/tui/build/src/utils/config.js +++ /dev/null @@ -1,24 +0,0 @@ -import { readFileSync } from "fs"; -import { resolve } from "path"; -/** - * Loads and validates an MCP servers configuration file - * @param configPath - Path to the config file (relative to process.cwd() or absolute) - * @returns The parsed MCPConfig - * @throws Error if the file cannot be loaded, parsed, or is invalid - */ -export function loadMcpServersConfig(configPath) { - try { - const resolvedPath = resolve(process.cwd(), configPath); - const configContent = readFileSync(resolvedPath, "utf-8"); - const config = JSON.parse(configContent); - if (!config.mcpServers) { - throw new Error("Configuration file must contain an mcpServers element"); - } - return config; - } catch (error) { - if (error instanceof Error) { - throw new Error(`Error loading configuration: ${error.message}`); - } - throw new Error("Error loading configuration: Unknown error"); - } -} diff --git a/tui/build/src/utils/inspectorClient.js b/tui/build/src/utils/inspectorClient.js deleted file mode 100644 index 3f89a442d..000000000 --- a/tui/build/src/utils/inspectorClient.js +++ /dev/null @@ -1,332 +0,0 @@ -import { createTransport } from "./transport.js"; -import { createClient } from "./client.js"; -import { MessageTrackingTransport } from "./messageTrackingTransport.js"; -import { EventEmitter } from "events"; -/** - * InspectorClient wraps an MCP Client and provides: - * - Message tracking and storage - * - Stderr log tracking and storage (for stdio transports) - * - Event emitter interface for React hooks - * - Access to client functionality (prompts, resources, tools) - */ -export class InspectorClient extends EventEmitter { - transportConfig; - client = null; - transport = null; - baseTransport = null; - messages = []; - stderrLogs = []; - maxMessages; - maxStderrLogEvents; - status = "disconnected"; - // Server data - tools = []; - resources = []; - prompts = []; - capabilities; - serverInfo; - instructions; - constructor(transportConfig, options = {}) { - super(); - this.transportConfig = transportConfig; - this.maxMessages = options.maxMessages ?? 1000; - this.maxStderrLogEvents = options.maxStderrLogEvents ?? 1000; - // Set up message tracking callbacks - const messageTracking = { - trackRequest: (message) => { - const entry = { - id: `${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "request", - message, - }; - this.addMessage(entry); - }, - trackResponse: (message) => { - const messageId = message.id; - // Find the matching request by message ID - const requestIndex = this.messages.findIndex( - (e) => - e.direction === "request" && - "id" in e.message && - e.message.id === messageId, - ); - if (requestIndex !== -1) { - // Update the request entry with the response - this.updateMessageResponse(requestIndex, message); - } else { - // No matching request found, create orphaned response entry - const entry = { - id: `${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "response", - message, - }; - this.addMessage(entry); - } - }, - trackNotification: (message) => { - const entry = { - id: `${Date.now()}-${Math.random()}`, - timestamp: new Date(), - direction: "notification", - message, - }; - this.addMessage(entry); - }, - }; - // Create transport with stderr logging if needed - const transportOptions = { - pipeStderr: options.pipeStderr ?? false, - onStderr: (entry) => { - this.addStderrLog(entry); - }, - }; - const { transport: baseTransport } = createTransport( - transportConfig, - transportOptions, - ); - // Store base transport for event listeners (always listen to actual transport, not wrapper) - this.baseTransport = baseTransport; - // Wrap with MessageTrackingTransport if we're tracking messages - this.transport = - this.maxMessages > 0 - ? new MessageTrackingTransport(baseTransport, messageTracking) - : baseTransport; - // Set up transport event listeners on base transport to track disconnections - this.baseTransport.onclose = () => { - if (this.status !== "disconnected") { - this.status = "disconnected"; - this.emit("statusChange", this.status); - this.emit("disconnect"); - } - }; - this.baseTransport.onerror = (error) => { - this.status = "error"; - this.emit("statusChange", this.status); - this.emit("error", error); - }; - // Create client - this.client = createClient(this.transport); - } - /** - * Connect to the MCP server - */ - async connect() { - if (!this.client || !this.transport) { - throw new Error("Client or transport not initialized"); - } - // If already connected, return early - if (this.status === "connected") { - return; - } - try { - this.status = "connecting"; - this.emit("statusChange", this.status); - await this.client.connect(this.transport); - this.status = "connected"; - this.emit("statusChange", this.status); - this.emit("connect"); - // Auto-fetch server data on connect - await this.fetchServerData(); - } catch (error) { - this.status = "error"; - this.emit("statusChange", this.status); - this.emit("error", error); - throw error; - } - } - /** - * Disconnect from the MCP server - */ - async disconnect() { - if (this.client) { - try { - await this.client.close(); - } catch (error) { - // Ignore errors on close - } - } - // Update status - transport onclose handler will also fire, but we update here too - if (this.status !== "disconnected") { - this.status = "disconnected"; - this.emit("statusChange", this.status); - this.emit("disconnect"); - } - } - /** - * Get the underlying MCP Client - */ - getClient() { - if (!this.client) { - throw new Error("Client not initialized"); - } - return this.client; - } - /** - * Get all messages - */ - getMessages() { - return [...this.messages]; - } - /** - * Get all stderr logs - */ - getStderrLogs() { - return [...this.stderrLogs]; - } - /** - * Clear all messages - */ - clearMessages() { - this.messages = []; - this.emit("messagesChange"); - } - /** - * Clear all stderr logs - */ - clearStderrLogs() { - this.stderrLogs = []; - this.emit("stderrLogsChange"); - } - /** - * Get the current connection status - */ - getStatus() { - return this.status; - } - /** - * Get the MCP server configuration used to create this client - */ - getTransportConfig() { - return this.transportConfig; - } - /** - * Get all tools - */ - getTools() { - return [...this.tools]; - } - /** - * Get all resources - */ - getResources() { - return [...this.resources]; - } - /** - * Get all prompts - */ - getPrompts() { - return [...this.prompts]; - } - /** - * Get server capabilities - */ - getCapabilities() { - return this.capabilities; - } - /** - * Get server info (name, version) - */ - getServerInfo() { - return this.serverInfo; - } - /** - * Get server instructions - */ - getInstructions() { - return this.instructions; - } - /** - * Fetch server data (capabilities, tools, resources, prompts, serverInfo, instructions) - * Called automatically on connect, but can be called manually if needed. - * TODO: Add support for listChanged notifications to auto-refresh when server data changes - */ - async fetchServerData() { - if (!this.client) { - return; - } - try { - // Get server capabilities - this.capabilities = this.client.getServerCapabilities(); - this.emit("capabilitiesChange", this.capabilities); - // Get server info (name, version) and instructions - this.serverInfo = this.client.getServerVersion(); - this.instructions = this.client.getInstructions(); - this.emit("serverInfoChange", this.serverInfo); - if (this.instructions !== undefined) { - this.emit("instructionsChange", this.instructions); - } - // Query resources, prompts, and tools based on capabilities - if (this.capabilities?.resources) { - try { - const result = await this.client.listResources(); - this.resources = result.resources || []; - this.emit("resourcesChange", this.resources); - } catch (err) { - // Ignore errors, just leave empty - this.resources = []; - this.emit("resourcesChange", this.resources); - } - } - if (this.capabilities?.prompts) { - try { - const result = await this.client.listPrompts(); - this.prompts = result.prompts || []; - this.emit("promptsChange", this.prompts); - } catch (err) { - // Ignore errors, just leave empty - this.prompts = []; - this.emit("promptsChange", this.prompts); - } - } - if (this.capabilities?.tools) { - try { - const result = await this.client.listTools(); - this.tools = result.tools || []; - this.emit("toolsChange", this.tools); - } catch (err) { - // Ignore errors, just leave empty - this.tools = []; - this.emit("toolsChange", this.tools); - } - } - } catch (error) { - // If fetching fails, we still consider the connection successful - // but log the error - this.emit("error", error); - } - } - addMessage(entry) { - if (this.maxMessages > 0 && this.messages.length >= this.maxMessages) { - // Remove oldest message - this.messages.shift(); - } - this.messages.push(entry); - this.emit("message", entry); - this.emit("messagesChange"); - } - updateMessageResponse(requestIndex, response) { - const requestEntry = this.messages[requestIndex]; - const duration = Date.now() - requestEntry.timestamp.getTime(); - this.messages[requestIndex] = { - ...requestEntry, - response, - duration, - }; - this.emit("message", this.messages[requestIndex]); - this.emit("messagesChange"); - } - addStderrLog(entry) { - if ( - this.maxStderrLogEvents > 0 && - this.stderrLogs.length >= this.maxStderrLogEvents - ) { - // Remove oldest stderr log - this.stderrLogs.shift(); - } - this.stderrLogs.push(entry); - this.emit("stderrLog", entry); - this.emit("stderrLogsChange"); - } -} diff --git a/tui/build/src/utils/messageTrackingTransport.js b/tui/build/src/utils/messageTrackingTransport.js deleted file mode 100644 index 2d6966a0e..000000000 --- a/tui/build/src/utils/messageTrackingTransport.js +++ /dev/null @@ -1,71 +0,0 @@ -// Transport wrapper that intercepts all messages for tracking -export class MessageTrackingTransport { - baseTransport; - callbacks; - constructor(baseTransport, callbacks) { - this.baseTransport = baseTransport; - this.callbacks = callbacks; - } - async start() { - return this.baseTransport.start(); - } - async send(message, options) { - // Track outgoing requests (only requests have a method and are sent by the client) - if ("method" in message && "id" in message) { - this.callbacks.trackRequest?.(message); - } - return this.baseTransport.send(message, options); - } - async close() { - return this.baseTransport.close(); - } - get onclose() { - return this.baseTransport.onclose; - } - set onclose(handler) { - this.baseTransport.onclose = handler; - } - get onerror() { - return this.baseTransport.onerror; - } - set onerror(handler) { - this.baseTransport.onerror = handler; - } - get onmessage() { - return this.baseTransport.onmessage; - } - set onmessage(handler) { - if (handler) { - // Wrap the handler to track incoming messages - this.baseTransport.onmessage = (message, extra) => { - // Track incoming messages - if ( - "id" in message && - message.id !== null && - message.id !== undefined - ) { - // Check if it's a response (has 'result' or 'error' property) - if ("result" in message || "error" in message) { - this.callbacks.trackResponse?.(message); - } else if ("method" in message) { - // This is a request coming from the server - this.callbacks.trackRequest?.(message); - } - } else if ("method" in message) { - // Notification (no ID, has method) - this.callbacks.trackNotification?.(message); - } - // Call the original handler - handler(message, extra); - }; - } else { - this.baseTransport.onmessage = undefined; - } - } - get sessionId() { - return this.baseTransport.sessionId; - } - get setProtocolVersion() { - return this.baseTransport.setProtocolVersion; - } -} diff --git a/tui/build/src/utils/schemaToForm.js b/tui/build/src/utils/schemaToForm.js deleted file mode 100644 index 30397aa9a..000000000 --- a/tui/build/src/utils/schemaToForm.js +++ /dev/null @@ -1,104 +0,0 @@ -/** - * Converts JSON Schema to ink-form format - */ -/** - * Converts a JSON Schema to ink-form structure - */ -export function schemaToForm(schema, toolName) { - const fields = []; - if (!schema || !schema.properties) { - return { - title: `Test Tool: ${toolName}`, - sections: [{ title: "Parameters", fields: [] }], - }; - } - const properties = schema.properties || {}; - const required = schema.required || []; - for (const [key, prop] of Object.entries(properties)) { - const property = prop; - const baseField = { - name: key, - label: property.title || key, - required: required.includes(key), - }; - let field; - // Handle enum -> select - if (property.enum) { - if (property.type === "array" && property.items?.enum) { - // For array of enums, we'll use select but handle it differently - // Note: ink-form doesn't have multiselect, so we'll use select - field = { - type: "select", - ...baseField, - options: property.items.enum.map((val) => ({ - label: String(val), - value: String(val), - })), - }; - } else { - // Single select - field = { - type: "select", - ...baseField, - options: property.enum.map((val) => ({ - label: String(val), - value: String(val), - })), - }; - } - } else { - // Map JSON Schema types to ink-form types - switch (property.type) { - case "string": - field = { - type: "string", - ...baseField, - }; - break; - case "integer": - field = { - type: "integer", - ...baseField, - ...(property.minimum !== undefined && { min: property.minimum }), - ...(property.maximum !== undefined && { max: property.maximum }), - }; - break; - case "number": - field = { - type: "float", - ...baseField, - ...(property.minimum !== undefined && { min: property.minimum }), - ...(property.maximum !== undefined && { max: property.maximum }), - }; - break; - case "boolean": - field = { - type: "boolean", - ...baseField, - }; - break; - default: - // Default to string for unknown types - field = { - type: "string", - ...baseField, - }; - } - } - // Set initial value from default - if (property.default !== undefined) { - field.initialValue = property.default; - } - fields.push(field); - } - const sections = [ - { - title: "Parameters", - fields, - }, - ]; - return { - title: `Test Tool: ${toolName}`, - sections, - }; -} diff --git a/tui/build/src/utils/transport.js b/tui/build/src/utils/transport.js deleted file mode 100644 index 01f57294e..000000000 --- a/tui/build/src/utils/transport.js +++ /dev/null @@ -1,70 +0,0 @@ -import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; -import { SSEClientTransport } from "@modelcontextprotocol/sdk/client/sse.js"; -import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"; -export function getServerType(config) { - if ("type" in config) { - if (config.type === "sse") return "sse"; - if (config.type === "streamableHttp") return "streamableHttp"; - } - return "stdio"; -} -/** - * Creates the appropriate transport for an MCP server configuration - */ -export function createTransport(config, options = {}) { - const serverType = getServerType(config); - const { onStderr, pipeStderr = false } = options; - if (serverType === "stdio") { - const stdioConfig = config; - const transport = new StdioClientTransport({ - command: stdioConfig.command, - args: stdioConfig.args || [], - env: stdioConfig.env, - cwd: stdioConfig.cwd, - stderr: pipeStderr ? "pipe" : undefined, - }); - // Set up stderr listener if requested - if (pipeStderr && transport.stderr && onStderr) { - transport.stderr.on("data", (data) => { - const logEntry = data.toString().trim(); - if (logEntry) { - onStderr({ - timestamp: new Date(), - message: logEntry, - }); - } - }); - } - return { transport: transport }; - } else if (serverType === "sse") { - const sseConfig = config; - const url = new URL(sseConfig.url); - // Merge headers and requestInit - const eventSourceInit = { - ...sseConfig.eventSourceInit, - ...(sseConfig.headers && { headers: sseConfig.headers }), - }; - const requestInit = { - ...sseConfig.requestInit, - ...(sseConfig.headers && { headers: sseConfig.headers }), - }; - const transport = new SSEClientTransport(url, { - eventSourceInit, - requestInit, - }); - return { transport }; - } else { - // streamableHttp - const httpConfig = config; - const url = new URL(httpConfig.url); - // Merge headers and requestInit - const requestInit = { - ...httpConfig.requestInit, - ...(httpConfig.headers && { headers: httpConfig.headers }), - }; - const transport = new StreamableHTTPClientTransport(url, { - requestInit, - }); - return { transport }; - } -} diff --git a/tui/build/tui.js b/tui/build/tui.js deleted file mode 100644 index c99cf9f22..000000000 --- a/tui/build/tui.js +++ /dev/null @@ -1,56 +0,0 @@ -#!/usr/bin/env node -import { jsx as _jsx } from "react/jsx-runtime"; -import { render } from "ink"; -import App from "./src/App.js"; -export async function runTui() { - const args = process.argv.slice(2); - const configFile = args[0]; - if (!configFile) { - console.error("Usage: mcp-inspector-tui "); - process.exit(1); - } - // Intercept stdout.write to filter out \x1b[3J (Erase Saved Lines) - // This prevents Ink's clearTerminal from clearing scrollback on macOS Terminal - // We can't access Ink's internal instance to prevent clearTerminal from being called, - // so we filter the escape code instead - const originalWrite = process.stdout.write.bind(process.stdout); - process.stdout.write = function (chunk, encoding, cb) { - if (typeof chunk === "string") { - // Only process if the escape code is present (minimize overhead) - if (chunk.includes("\x1b[3J")) { - chunk = chunk.replace(/\x1b\[3J/g, ""); - } - } else if (Buffer.isBuffer(chunk)) { - // Only process if the escape code is present (minimize overhead) - if (chunk.includes("\x1b[3J")) { - let str = chunk.toString("utf8"); - str = str.replace(/\x1b\[3J/g, ""); - chunk = Buffer.from(str, "utf8"); - } - } - return originalWrite(chunk, encoding, cb); - }; - // Enter alternate screen buffer before rendering - if (process.stdout.isTTY) { - process.stdout.write("\x1b[?1049h"); - } - // Render the app - const instance = render(_jsx(App, { configFile: configFile })); - // Wait for exit, then switch back from alternate screen - try { - await instance.waitUntilExit(); - // Unmount has completed - clearTerminal was patched to not include \x1b[3J - // Switch back from alternate screen - if (process.stdout.isTTY) { - process.stdout.write("\x1b[?1049l"); - } - process.exit(0); - } catch (error) { - if (process.stdout.isTTY) { - process.stdout.write("\x1b[?1049l"); - } - console.error("Error:", error); - process.exit(1); - } -} -runTui(); From fa9403d2bc219264432b3a9de68e6239302dd805 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Mon, 19 Jan 2026 00:16:31 -0800 Subject: [PATCH 13/44] Cleaned up barrel exports --- .gitignore | 1 + tui/src/App.tsx | 16 +++++++--------- tui/src/mcp/client.ts | 3 +-- tui/src/mcp/index.ts | 23 ++++------------------- tui/src/mcp/inspectorClient.ts | 17 ++++++++++++++--- 5 files changed, 27 insertions(+), 33 deletions(-) diff --git a/.gitignore b/.gitignore index 230d72d41..80254a461 100644 --- a/.gitignore +++ b/.gitignore @@ -8,6 +8,7 @@ client/dist client/tsconfig.app.tsbuildinfo client/tsconfig.node.tsbuildinfo cli/build +tui/build test-output tool-test-output metadata-test-output diff --git a/tui/src/App.tsx b/tui/src/App.tsx index 165c24009..b00ea4f48 100644 --- a/tui/src/App.tsx +++ b/tui/src/App.tsx @@ -3,7 +3,7 @@ import { Box, Text, useInput, useApp, type Key } from "ink"; import { readFileSync } from "fs"; import { fileURLToPath } from "url"; import { dirname, join } from "path"; -import type { MCPServerConfig, MessageEntry } from "./mcp/index.js"; +import type { MessageEntry } from "./mcp/index.js"; import { loadMcpServersConfig } from "./mcp/index.js"; import { InspectorClient } from "./mcp/index.js"; import { useInspectorClient } from "./hooks/useInspectorClient.js"; @@ -17,8 +17,6 @@ import { HistoryTab } from "./components/HistoryTab.js"; import { ToolTestModal } from "./components/ToolTestModal.js"; import { DetailsModal } from "./components/DetailsModal.js"; import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; -import { createTransport, getServerType } from "./mcp/index.js"; -import { createClient } from "./mcp/index.js"; const __filename = fileURLToPath(import.meta.url); const __dirname = dirname(__filename); @@ -458,13 +456,13 @@ function App({ configFile }: AppProps) { // Switch away from logging tab if server is not stdio useEffect(() => { - if (activeTab === "logging" && selectedServerConfig) { - const serverType = getServerType(selectedServerConfig); - if (serverType !== "stdio") { + if (activeTab === "logging" && selectedServer) { + const client = inspectorClients[selectedServer]; + if (client && client.getServerType() !== "stdio") { setActiveTab("info"); } } - }, [selectedServerConfig, activeTab, getServerType]); + }, [selectedServer, activeTab, inspectorClients]); useInput((input: string, key: Key) => { // Don't process input when modal is open @@ -755,8 +753,8 @@ function App({ configFile }: AppProps) { counts={tabCounts} focused={focus === "tabs"} showLogging={ - selectedServerConfig - ? getServerType(selectedServerConfig) === "stdio" + selectedServer && inspectorClients[selectedServer] + ? inspectorClients[selectedServer].getServerType() === "stdio" : false } /> diff --git a/tui/src/mcp/client.ts b/tui/src/mcp/client.ts index 9c767f717..bdbae34e2 100644 --- a/tui/src/mcp/client.ts +++ b/tui/src/mcp/client.ts @@ -1,10 +1,9 @@ import { Client } from "@modelcontextprotocol/sdk/client/index.js"; -import type { Transport } from "@modelcontextprotocol/sdk/shared/transport.js"; /** * Creates a new MCP client with standard configuration */ -export function createClient(transport: Transport): Client { +export function createClient(): Client { return new Client( { name: "mcp-inspect", diff --git a/tui/src/mcp/index.ts b/tui/src/mcp/index.ts index de5b56c37..1d0057e00 100644 --- a/tui/src/mcp/index.ts +++ b/tui/src/mcp/index.ts @@ -4,29 +4,14 @@ export { InspectorClient } from "./inspectorClient.js"; export type { InspectorClientOptions } from "./inspectorClient.js"; -export { createTransport, getServerType } from "./transport.js"; -export type { - CreateTransportOptions, - CreateTransportResult, - ServerType, -} from "./transport.js"; - -export { createClient } from "./client.js"; - -export { MessageTrackingTransport } from "./messageTrackingTransport.js"; -export type { MessageTrackingCallbacks } from "./messageTrackingTransport.js"; - export { loadMcpServersConfig } from "./config.js"; -// Re-export all types +// Re-export types used by consumers export type { - // Transport config types - StdioServerConfig, - SseServerConfig, - StreamableHttpServerConfig, - MCPServerConfig, + // Config types MCPConfig, - // Connection and state types + MCPServerConfig, + // Connection and state types (used by components and hooks) ConnectionStatus, StderrLogEntry, MessageEntry, diff --git a/tui/src/mcp/inspectorClient.ts b/tui/src/mcp/inspectorClient.ts index a2f299143..8d1c0c18e 100644 --- a/tui/src/mcp/inspectorClient.ts +++ b/tui/src/mcp/inspectorClient.ts @@ -5,7 +5,12 @@ import type { ConnectionStatus, MessageEntry, } from "./types.js"; -import { createTransport, type CreateTransportOptions } from "./transport.js"; +import { + createTransport, + type CreateTransportOptions, + getServerType as getServerTypeFromConfig, + type ServerType, +} from "./transport.js"; import { createClient } from "./client.js"; import { MessageTrackingTransport, @@ -155,8 +160,7 @@ export class InspectorClient extends EventEmitter { this.emit("error", error); }; - // Create client - this.client = createClient(this.transport); + this.client = createClient(); } /** @@ -263,6 +267,13 @@ export class InspectorClient extends EventEmitter { return this.transportConfig; } + /** + * Get the server type (stdio, sse, or streamableHttp) + */ + getServerType(): ServerType { + return getServerTypeFromConfig(this.transportConfig); + } + /** * Get all tools */ From 870cd37973787c947d898678a9e11dcfb06dbcda Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Mon, 19 Jan 2026 12:35:50 -0800 Subject: [PATCH 14/44] Fixed data state clearing in InspectorClient, made it only source of truth (all UX now reflects InspectorClient state directly for prompts, resources, tools, messages, and stdio transport log events). --- tui/src/App.tsx | 304 +++++++++++++--------------- tui/src/hooks/useInspectorClient.ts | 14 -- tui/src/mcp/inspectorClient.ts | 40 ++-- 3 files changed, 162 insertions(+), 196 deletions(-) diff --git a/tui/src/App.tsx b/tui/src/App.tsx index b00ea4f48..bc5aa0e82 100644 --- a/tui/src/App.tsx +++ b/tui/src/App.tsx @@ -189,18 +189,12 @@ function App({ configFile }: AppProps) { client: inspectorClient, connect: connectInspector, disconnect: disconnectInspector, - clearMessages: clearInspectorMessages, - clearStderrLogs: clearInspectorStderrLogs, } = useInspectorClient(selectedInspectorClient); // Connect handler - InspectorClient now handles fetching server data automatically const handleConnect = useCallback(async () => { if (!selectedServer || !selectedInspectorClient) return; - // Clear messages and stderr logs when connecting/reconnecting - clearInspectorMessages(); - clearInspectorStderrLogs(); - try { await connectInspector(); // InspectorClient automatically fetches server data (capabilities, tools, resources, prompts, etc.) @@ -208,13 +202,7 @@ function App({ configFile }: AppProps) { } catch (error) { // Error handling is done by InspectorClient and will be reflected in status } - }, [ - selectedServer, - selectedInspectorClient, - connectInspector, - clearInspectorMessages, - clearInspectorStderrLogs, - ]); + }, [selectedServer, selectedInspectorClient, connectInspector]); // Disconnect handler const handleDisconnect = useCallback(async () => { @@ -408,32 +396,21 @@ function App({ configFile }: AppProps) { ); // Update tab counts when selected server changes or InspectorClient state changes + // Just reflect InspectorClient state - don't try to be clever useEffect(() => { if (!selectedServer) { return; } - if (inspectorStatus === "connected") { - setTabCounts({ - resources: inspectorResources.length || 0, - prompts: inspectorPrompts.length || 0, - tools: inspectorTools.length || 0, - messages: inspectorMessages.length || 0, - logging: inspectorStderrLogs.length || 0, - }); - } else if (inspectorStatus !== "connecting") { - // Reset counts for disconnected or error states - setTabCounts({ - resources: 0, - prompts: 0, - tools: 0, - messages: inspectorMessages.length || 0, - logging: inspectorStderrLogs.length || 0, - }); - } + setTabCounts({ + resources: inspectorResources.length || 0, + prompts: inspectorPrompts.length || 0, + tools: inspectorTools.length || 0, + messages: inspectorMessages.length || 0, + logging: inspectorStderrLogs.length || 0, + }); }, [ selectedServer, - inspectorStatus, inspectorResources, inspectorPrompts, inspectorTools, @@ -780,140 +757,137 @@ function App({ configFile }: AppProps) { } /> )} - {currentServerState?.status === "connected" && inspectorClient ? ( - <> - {activeTab === "resources" && ( - - setTabCounts((prev) => ({ ...prev, resources: count })) - } - focusedPane={ - focus === "tabContentDetails" - ? "details" - : focus === "tabContentList" - ? "list" - : null - } - onViewDetails={(resource) => - setDetailsModal({ - title: `Resource: ${resource.name || resource.uri || "Unknown"}`, - content: renderResourceDetails(resource), - }) - } - modalOpen={!!(toolTestModal || detailsModal)} - /> - )} - {activeTab === "prompts" && ( - - setTabCounts((prev) => ({ ...prev, prompts: count })) - } - focusedPane={ - focus === "tabContentDetails" - ? "details" - : focus === "tabContentList" - ? "list" - : null - } - onViewDetails={(prompt) => - setDetailsModal({ - title: `Prompt: ${prompt.name || "Unknown"}`, - content: renderPromptDetails(prompt), - }) - } - modalOpen={!!(toolTestModal || detailsModal)} - /> - )} - {activeTab === "tools" && ( - - setTabCounts((prev) => ({ ...prev, tools: count })) - } - focusedPane={ - focus === "tabContentDetails" - ? "details" - : focus === "tabContentList" - ? "list" - : null - } - onTestTool={(tool) => - setToolTestModal({ tool, client: inspectorClient }) - } - onViewDetails={(tool) => - setDetailsModal({ - title: `Tool: ${tool.name || "Unknown"}`, - content: renderToolDetails(tool), - }) - } - modalOpen={!!(toolTestModal || detailsModal)} - /> - )} - {activeTab === "messages" && ( - - setTabCounts((prev) => ({ ...prev, messages: count })) - } - focusedPane={ - focus === "messagesDetail" - ? "details" - : focus === "messagesList" - ? "messages" - : null - } - modalOpen={!!(toolTestModal || detailsModal)} - onViewDetails={(message) => { - const label = - message.direction === "request" && - "method" in message.message + {activeTab === "resources" && + currentServerState?.status === "connected" && + inspectorClient ? ( + + setTabCounts((prev) => ({ ...prev, resources: count })) + } + focusedPane={ + focus === "tabContentDetails" + ? "details" + : focus === "tabContentList" + ? "list" + : null + } + onViewDetails={(resource) => + setDetailsModal({ + title: `Resource: ${resource.name || resource.uri || "Unknown"}`, + content: renderResourceDetails(resource), + }) + } + modalOpen={!!(toolTestModal || detailsModal)} + /> + ) : activeTab === "prompts" && + currentServerState?.status === "connected" && + inspectorClient ? ( + + setTabCounts((prev) => ({ ...prev, prompts: count })) + } + focusedPane={ + focus === "tabContentDetails" + ? "details" + : focus === "tabContentList" + ? "list" + : null + } + onViewDetails={(prompt) => + setDetailsModal({ + title: `Prompt: ${prompt.name || "Unknown"}`, + content: renderPromptDetails(prompt), + }) + } + modalOpen={!!(toolTestModal || detailsModal)} + /> + ) : activeTab === "tools" && + currentServerState?.status === "connected" && + inspectorClient ? ( + + setTabCounts((prev) => ({ ...prev, tools: count })) + } + focusedPane={ + focus === "tabContentDetails" + ? "details" + : focus === "tabContentList" + ? "list" + : null + } + onTestTool={(tool) => + setToolTestModal({ tool, client: inspectorClient }) + } + onViewDetails={(tool) => + setDetailsModal({ + title: `Tool: ${tool.name || "Unknown"}`, + content: renderToolDetails(tool), + }) + } + modalOpen={!!(toolTestModal || detailsModal)} + /> + ) : activeTab === "messages" && selectedInspectorClient ? ( + + setTabCounts((prev) => ({ ...prev, messages: count })) + } + focusedPane={ + focus === "messagesDetail" + ? "details" + : focus === "messagesList" + ? "messages" + : null + } + modalOpen={!!(toolTestModal || detailsModal)} + onViewDetails={(message) => { + const label = + message.direction === "request" && + "method" in message.message + ? message.message.method + : message.direction === "response" + ? "Response" + : message.direction === "notification" && + "method" in message.message ? message.message.method - : message.direction === "response" - ? "Response" - : message.direction === "notification" && - "method" in message.message - ? message.message.method - : "Message"; - setDetailsModal({ - title: `Message: ${label}`, - content: renderMessageDetails(message), - }); - }} - /> - )} - {activeTab === "logging" && ( - - setTabCounts((prev) => ({ ...prev, logging: count })) - } - focused={ - focus === "tabContentList" || - focus === "tabContentDetails" - } - /> - )} - + : "Message"; + setDetailsModal({ + title: `Message: ${label}`, + content: renderMessageDetails(message), + }); + }} + /> + ) : activeTab === "logging" && selectedInspectorClient ? ( + + setTabCounts((prev) => ({ ...prev, logging: count })) + } + focused={ + focus === "tabContentList" || focus === "tabContentDetails" + } + /> ) : activeTab !== "info" && selectedServer ? ( Server not connected diff --git a/tui/src/hooks/useInspectorClient.ts b/tui/src/hooks/useInspectorClient.ts index 77f95f530..42e261cba 100644 --- a/tui/src/hooks/useInspectorClient.ts +++ b/tui/src/hooks/useInspectorClient.ts @@ -24,8 +24,6 @@ export interface UseInspectorClientResult { client: Client | null; connect: () => Promise; disconnect: () => Promise; - clearMessages: () => void; - clearStderrLogs: () => void; } /** @@ -158,16 +156,6 @@ export function useInspectorClient( await inspectorClient.disconnect(); }, [inspectorClient]); - const clearMessages = useCallback(() => { - if (!inspectorClient) return; - inspectorClient.clearMessages(); - }, [inspectorClient]); - - const clearStderrLogs = useCallback(() => { - if (!inspectorClient) return; - inspectorClient.clearStderrLogs(); - }, [inspectorClient]); - return { status, messages, @@ -181,7 +169,5 @@ export function useInspectorClient( client: inspectorClient?.getClient() ?? null, connect, disconnect, - clearMessages, - clearStderrLogs, }; } diff --git a/tui/src/mcp/inspectorClient.ts b/tui/src/mcp/inspectorClient.ts index 8d1c0c18e..1c3509418 100644 --- a/tui/src/mcp/inspectorClient.ts +++ b/tui/src/mcp/inspectorClient.ts @@ -179,6 +179,12 @@ export class InspectorClient extends EventEmitter { try { this.status = "connecting"; this.emit("statusChange", this.status); + + // Clear message history on connect (start fresh for new session) + // Don't clear stderrLogs - they persist across reconnects + this.messages = []; + this.emit("messagesChange"); + await this.client.connect(this.transport); this.status = "connected"; this.emit("statusChange", this.status); @@ -205,12 +211,28 @@ export class InspectorClient extends EventEmitter { // Ignore errors on close } } - // Update status - transport onclose handler will also fire, but we update here too + // Update status - transport onclose handler will also fire and clear state + // But we also do it here in case disconnect() is called directly if (this.status !== "disconnected") { this.status = "disconnected"; this.emit("statusChange", this.status); this.emit("disconnect"); } + + // Clear server state (tools, resources, prompts) on disconnect + // These are only valid when connected + this.tools = []; + this.resources = []; + this.prompts = []; + this.capabilities = undefined; + this.serverInfo = undefined; + this.instructions = undefined; + this.emit("toolsChange", this.tools); + this.emit("resourcesChange", this.resources); + this.emit("promptsChange", this.prompts); + this.emit("capabilitiesChange", this.capabilities); + this.emit("serverInfoChange", this.serverInfo); + this.emit("instructionsChange", this.instructions); } /** @@ -237,22 +259,6 @@ export class InspectorClient extends EventEmitter { return [...this.stderrLogs]; } - /** - * Clear all messages - */ - clearMessages(): void { - this.messages = []; - this.emit("messagesChange"); - } - - /** - * Clear all stderr logs - */ - clearStderrLogs(): void { - this.stderrLogs = []; - this.emit("stderrLogsChange"); - } - /** * Get the current connection status */ From 863a1462802854a54b3a41e4e9f7695c41d15645 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Mon, 19 Jan 2026 15:19:28 -0800 Subject: [PATCH 15/44] Phase 2 complete (moved shared code from CLI and TUI to top level (still not actually sharing yet) --- cli/__tests__/cli.test.ts | 6 +- cli/__tests__/headers.test.ts | 4 +- cli/__tests__/helpers/fixtures.ts | 2 +- cli/__tests__/metadata.test.ts | 4 +- cli/__tests__/tools.test.ts | 2 +- docs/tui-integration-design.md | 562 ++++++++++-------- {tui/src => shared}/mcp/client.ts | 0 shared/mcp/config.ts | 114 ++++ {tui/src => shared}/mcp/index.ts | 2 +- {tui/src => shared}/mcp/inspectorClient.ts | 0 .../mcp/messageTrackingTransport.ts | 0 {tui/src => shared}/mcp/transport.ts | 0 {tui/src => shared}/mcp/types.ts | 0 .../react}/useInspectorClient.ts | 0 .../test/test-server-fixtures.ts | 0 .../test}/test-server-http.ts | 2 +- .../test}/test-server-stdio.ts | 4 +- tui/package.json | 2 +- tui/src/App.tsx | 8 +- tui/src/components/HistoryTab.tsx | 2 +- tui/src/components/InfoTab.tsx | 5 +- tui/src/components/NotificationsTab.tsx | 2 +- tui/src/mcp/config.ts | 28 - tui/tsconfig.json | 5 +- 24 files changed, 456 insertions(+), 298 deletions(-) rename {tui/src => shared}/mcp/client.ts (100%) create mode 100644 shared/mcp/config.ts rename {tui/src => shared}/mcp/index.ts (86%) rename {tui/src => shared}/mcp/inspectorClient.ts (100%) rename {tui/src => shared}/mcp/messageTrackingTransport.ts (100%) rename {tui/src => shared}/mcp/transport.ts (100%) rename {tui/src => shared}/mcp/types.ts (100%) rename {tui/src/hooks => shared/react}/useInspectorClient.ts (100%) rename cli/__tests__/helpers/test-fixtures.ts => shared/test/test-server-fixtures.ts (100%) rename {cli/__tests__/helpers => shared/test}/test-server-http.ts (99%) rename {cli/__tests__/helpers => shared/test}/test-server-stdio.ts (98%) delete mode 100644 tui/src/mcp/config.ts diff --git a/cli/__tests__/cli.test.ts b/cli/__tests__/cli.test.ts index b263f618c..c8d6d862e 100644 --- a/cli/__tests__/cli.test.ts +++ b/cli/__tests__/cli.test.ts @@ -12,12 +12,12 @@ import { createInvalidConfig, deleteConfigFile, } from "./helpers/fixtures.js"; -import { getTestMcpServerCommand } from "./helpers/test-server-stdio.js"; -import { createTestServerHttp } from "./helpers/test-server-http.js"; +import { getTestMcpServerCommand } from "../../shared/test/test-server-stdio.js"; +import { createTestServerHttp } from "../../shared/test/test-server-http.js"; import { createEchoTool, createTestServerInfo, -} from "./helpers/test-fixtures.js"; +} from "../../shared/test/test-server-fixtures.js"; describe("CLI Tests", () => { describe("Basic CLI Mode", () => { diff --git a/cli/__tests__/headers.test.ts b/cli/__tests__/headers.test.ts index 6adf1effe..910f5f973 100644 --- a/cli/__tests__/headers.test.ts +++ b/cli/__tests__/headers.test.ts @@ -5,11 +5,11 @@ import { expectOutputContains, expectCliSuccess, } from "./helpers/assertions.js"; -import { createTestServerHttp } from "./helpers/test-server-http.js"; +import { createTestServerHttp } from "../../shared/test/test-server-http.js"; import { createEchoTool, createTestServerInfo, -} from "./helpers/test-fixtures.js"; +} from "../../shared/test/test-server-fixtures.js"; describe("Header Parsing and Validation", () => { describe("Valid Headers", () => { diff --git a/cli/__tests__/helpers/fixtures.ts b/cli/__tests__/helpers/fixtures.ts index 5914f485c..e1cf83e51 100644 --- a/cli/__tests__/helpers/fixtures.ts +++ b/cli/__tests__/helpers/fixtures.ts @@ -2,7 +2,7 @@ import fs from "fs"; import path from "path"; import os from "os"; import crypto from "crypto"; -import { getTestMcpServerCommand } from "./test-server-stdio.js"; +import { getTestMcpServerCommand } from "../../../shared/test/test-server-stdio.js"; /** * Sentinel value for tests that don't need a real server diff --git a/cli/__tests__/metadata.test.ts b/cli/__tests__/metadata.test.ts index 93d5f8ca6..e15d58f0b 100644 --- a/cli/__tests__/metadata.test.ts +++ b/cli/__tests__/metadata.test.ts @@ -5,12 +5,12 @@ import { expectCliFailure, expectValidJson, } from "./helpers/assertions.js"; -import { createTestServerHttp } from "./helpers/test-server-http.js"; +import { createTestServerHttp } from "../../shared/test/test-server-http.js"; import { createEchoTool, createAddTool, createTestServerInfo, -} from "./helpers/test-fixtures.js"; +} from "../../shared/test/test-server-fixtures.js"; import { NO_SERVER_SENTINEL } from "./helpers/fixtures.js"; describe("Metadata Tests", () => { diff --git a/cli/__tests__/tools.test.ts b/cli/__tests__/tools.test.ts index e83b5ea0d..461a77026 100644 --- a/cli/__tests__/tools.test.ts +++ b/cli/__tests__/tools.test.ts @@ -6,7 +6,7 @@ import { expectValidJson, expectJsonError, } from "./helpers/assertions.js"; -import { getTestMcpServerCommand } from "./helpers/test-server-stdio.js"; +import { getTestMcpServerCommand } from "../../shared/test/test-server-stdio.js"; describe("Tool Tests", () => { describe("Tool Discovery", () => { diff --git a/docs/tui-integration-design.md b/docs/tui-integration-design.md index 38a83f3f1..d6b4e511b 100644 --- a/docs/tui-integration-design.md +++ b/docs/tui-integration-design.md @@ -12,9 +12,9 @@ The `mcp-inspect` project is a standalone Terminal User Interface (TUI) inspecto Our goal is to integrate the TUI into the MCP Inspector project, making it a first-class UX option alongside the existing web client and CLI. The integration will be done incrementally across three development phases: -1. **Phase 1**: Integrate TUI as a standalone runnable workspace (no code sharing) -2. **Phase 2**: Share code with CLI via direct imports (transport, config, client utilities) -3. **Phase 3**: Extract shared code to a common directory for better organization +1. **Phase 1**: Integrate TUI as a standalone runnable workspace (no code sharing) ✅ COMPLETE +2. **Phase 2**: Extract MCP module to shared directory (move TUI's MCP code to `shared/` for reuse) ✅ COMPLETE +3. **Phase 3**: Convert CLI to use shared code (replace CLI's direct SDK usage with `InspectorClient` from `shared/`) **Note**: These three phases represent development staging to break down the work into manageable steps. The first release (PR) will be submitted at the completion of Phase 3, after all code sharing and organization is complete. @@ -58,31 +58,29 @@ inspector/ ├── cli/ # CLI workspace │ ├── src/ │ │ ├── cli.ts # Launcher (spawns web client, CLI, or TUI) -│ │ ├── index.ts # CLI implementation -│ │ ├── transport.ts # Phase 2: TUI imports, Phase 3: moved to shared/ -│ │ └── client/ # MCP client utilities (Phase 2: TUI imports, Phase 3: moved to shared/) +│ │ ├── index.ts # CLI implementation (Phase 3: uses shared/mcp/) +│ │ ├── transport.ts # Phase 3: deprecated (use shared/mcp/transport.ts) +│ │ └── client/ # MCP client utilities (Phase 3: deprecated, use InspectorClient) │ ├── __tests__/ -│ │ └── helpers/ # Phase 2: keep here, Phase 3: moved to shared/test/ +│ │ └── helpers/ # Phase 2: test fixtures moved to shared/test/, Phase 3: imports from shared/test/ │ └── package.json ├── tui/ # NEW: TUI workspace │ ├── src/ │ │ ├── App.tsx # Main TUI application -│ │ ├── components/ # TUI React components -│ │ ├── hooks/ # TUI-specific hooks -│ │ ├── types/ # TUI-specific types -│ │ └── utils/ # Phase 1: self-contained, Phase 2: imports from CLI, Phase 3: imports from shared/ +│ │ └── components/ # TUI React components │ ├── tui.tsx # TUI entry point │ └── package.json -├── shared/ # NEW: Shared code directory (Phase 3) -│ ├── transport.ts -│ ├── config.ts -│ ├── client/ # MCP client utilities -│ │ ├── index.ts -│ │ ├── connection.ts -│ │ ├── tools.ts -│ │ ├── resources.ts -│ │ ├── prompts.ts -│ │ └── types.ts +├── shared/ # NEW: Shared code directory (Phase 2) +│ ├── mcp/ # MCP client/server interaction code +│ │ ├── index.ts # Public API exports +│ │ ├── inspectorClient.ts # Main InspectorClient class +│ │ ├── transport.ts # Transport creation from MCPServerConfig +│ │ ├── config.ts # Config loading and argument conversion +│ │ ├── types.ts # Shared types +│ │ ├── messageTrackingTransport.ts +│ │ └── client.ts +│ ├── react/ # React-specific utilities +│ │ └── useInspectorClient.ts # React hook for InspectorClient │ └── test/ # Test fixtures and harness servers │ ├── test-server-fixtures.ts │ ├── test-server-http.ts @@ -126,6 +124,8 @@ For Phase 1, the TUI should be completely self-contained: - **No imports**: Do not import from CLI workspace yet - **Goal**: Get TUI working standalone first, then refactor to share code +**Note**: During Phase 1 implementation, the TUI developed `InspectorClient` and organized MCP code into a `tui/src/mcp/` module. This provides a better foundation for code sharing than originally planned. See "Phase 1.5: InspectorClient Architecture" for details. + ### 1.4 Entry Point Strategy The root `cli/src/cli.ts` launcher should be extended to support a `--tui` flag: @@ -186,194 +186,286 @@ function main() { - Test server selection - Verify TUI works standalone without CLI dependencies -## Phase 2: Code Sharing via Direct Imports - -Once Phase 1 is complete and TUI is working, update TUI to use code from the CLI workspace via direct imports. - -### 2.1 Identify Shared Code - -The following utilities from TUI should be replaced with CLI equivalents: - -1. **Transport creation** (`tui/src/utils/transport.ts`) - - Replace with direct import from `cli/src/transport.ts` - - Use `createTransport()` from CLI +## Phase 1.5: InspectorClient Architecture (Current State) -2. **Config file loading** (`tui/src/utils/config.ts`) - - Extract `loadConfigFile()` from `cli/src/cli.ts` to `cli/src/utils/config.ts` if not already there - - Replace TUI config loading with CLI version - - **Note**: TUI will use the same config file format and location as CLI/web client for consistency +During Phase 1 implementation, the TUI developed a comprehensive client wrapper architecture that provides a better foundation for code sharing than originally planned. -3. **Client utilities** (`tui/src/utils/client.ts`) - - Replace with direct imports from `cli/src/client/` - - Use existing MCP client wrapper functions: - - `connect()`, `disconnect()`, `setLoggingLevel()` from `cli/src/client/connection.ts` - - `listTools()`, `callTool()` from `cli/src/client/tools.ts` - - `listResources()`, `readResource()`, `listResourceTemplates()` from `cli/src/client/resources.ts` - - `listPrompts()`, `getPrompt()` from `cli/src/client/prompts.ts` - - `McpResponse` type from `cli/src/client/types.ts` +### InspectorClient Overview -4. **Types** (consolidate) - - Align TUI types with CLI types - - Use CLI types where possible +The project now includes `InspectorClient` (`shared/mcp/inspectorClient.ts`), a comprehensive client wrapper that: -### 2.2 Direct Import Strategy +- **Wraps MCP SDK Client**: Provides a clean interface over the underlying SDK `Client` +- **Message Tracking**: Automatically tracks all JSON-RPC messages (requests, responses, notifications) +- **Stderr Logging**: Captures and stores stderr output from stdio transports +- **Event-Driven**: Extends `EventEmitter` for reactive UI updates +- **Server Data Management**: Automatically fetches and caches tools, resources, prompts, capabilities, server info, and instructions +- **State Management**: Manages connection status, message history, and server state +- **Transport Abstraction**: Works with all transport types (stdio, SSE, streamableHttp) -Use direct relative imports from TUI to CLI: +### Shared MCP Module Structure (Phase 2 Complete) -```typescript -// tui/src/utils/transport.ts (or wherever needed) -import { createTransport } from "../../cli/src/transport.js"; -import { loadConfigFile } from "../../cli/src/utils/config.js"; -import { listTools, callTool } from "../../cli/src/client/tools.js"; -``` - -**No TypeScript path mappings needed** - direct relative imports are simpler and clearer. +The MCP-related code has been moved to `shared/mcp/` and is used by both TUI and CLI: -**Path Structure**: From `tui/src/` to `cli/src/`, the relative path is `../../cli/src/`. This works because both `tui/` and `cli/` are sibling directories at the workspace root level. +- `inspectorClient.ts` - Main `InspectorClient` class +- `transport.ts` - Transport creation from `MCPServerConfig` +- `config.ts` - Config file loading (`loadMcpServersConfig`) and argument conversion (`argsToMcpServerConfig`) +- `types.ts` - Shared types (`MCPServerConfig`, `MessageEntry`, `ConnectionStatus`, etc.) +- `messageTrackingTransport.ts` - Transport wrapper for message tracking +- `client.ts` - Thin wrapper around SDK `Client` creation +- `index.ts` - Public API exports -### 2.3 Migration Steps +### Benefits of InspectorClient -1. **Extract config utility from CLI** (if needed) - - Move `loadConfigFile()` from `cli/src/cli.ts` to `cli/src/utils/config.ts` - - Ensure it's exported and reusable +1. **Unified Client Interface**: Single class handles all client operations +2. **Automatic State Management**: No manual state synchronization needed +3. **Event-Driven Updates**: Perfect for reactive UIs (React/Ink) +4. **Message History**: Built-in request/response/notification tracking +5. **Stderr Capture**: Automatic logging for stdio transports +6. **Type Safety**: Uses SDK types directly, no data loss -2. **Update TUI imports** - - Replace TUI transport code with import from CLI - - Replace TUI config code with import from CLI - - Replace TUI client code with imports from CLI: - - Replace direct SDK calls (`client.listTools()`, `client.callTool()`, etc.) with wrapper functions - - Use `connect()`, `disconnect()`, `setLoggingLevel()` from `cli/src/client/connection.ts` - - Use `listTools()`, `callTool()` from `cli/src/client/tools.ts` - - Use `listResources()`, `readResource()`, `listResourceTemplates()` from `cli/src/client/resources.ts` - - Use `listPrompts()`, `getPrompt()` from `cli/src/client/prompts.ts` - - Delete duplicate utilities from TUI +## Phase 2: Extract MCP Module to Shared Directory ✅ COMPLETE -3. **Test thoroughly** - - Ensure all functionality still works - - Test with test harness servers - - Verify no regressions +Move the TUI's MCP module to a shared directory so both TUI and CLI can use it. This establishes the shared codebase before converting the CLI. -## Phase 3: Extract Shared Code to Shared Directory +**Status**: Phase 2 is complete. All MCP code has been moved to `shared/mcp/`, the React hook moved to `shared/react/`, and test fixtures moved to `shared/test/`. The `argsToMcpServerConfig()` function has been implemented. -After Phase 2 is complete and working, extract shared code to a `shared/` directory for better organization. This includes both runtime utilities and test fixtures. +### 2.1 Shared Directory Structure -### 3.1 Shared Directory Structure +Create a `shared/` directory at the root level (not a workspace, just a directory): ``` shared/ # Not a workspace, just a directory -├── transport.ts -├── config.ts -├── client/ # MCP client utilities -│ ├── index.ts # Re-exports -│ ├── connection.ts -│ ├── tools.ts -│ ├── resources.ts -│ ├── prompts.ts -│ └── types.ts +├── mcp/ # MCP client/server interaction code +│ ├── index.ts # Re-exports public API +│ ├── inspectorClient.ts # Main InspectorClient class +│ ├── transport.ts # Transport creation from MCPServerConfig +│ ├── config.ts # Config loading and argument conversion +│ ├── types.ts # Shared types (MCPServerConfig, MessageEntry, etc.) +│ ├── messageTrackingTransport.ts # Transport wrapper for message tracking +│ └── client.ts # Thin wrapper around SDK Client creation +├── react/ # React-specific utilities +│ └── useInspectorClient.ts # React hook for InspectorClient └── test/ # Test fixtures and harness servers ├── test-server-fixtures.ts # Shared server configs and definitions ├── test-server-http.ts └── test-server-stdio.ts ``` -### 3.2 Code to Move to Shared Directory - -**Runtime utilities:** - -- `cli/src/transport.ts` → `shared/transport.ts` -- `cli/src/utils/config.ts` (extracted from `cli/src/cli.ts`) → `shared/config.ts` -- `cli/src/client/connection.ts` → `shared/client/connection.ts` -- `cli/src/client/tools.ts` → `shared/client/tools.ts` -- `cli/src/client/resources.ts` → `shared/client/resources.ts` -- `cli/src/client/prompts.ts` → `shared/client/prompts.ts` -- `cli/src/client/types.ts` → `shared/client/types.ts` -- `cli/src/client/index.ts` → `shared/client/index.ts` (re-exports) - -**Test fixtures:** - -- `cli/__tests__/helpers/test-fixtures.ts` → `shared/test/test-server-fixtures.ts` (renamed) -- `cli/__tests__/helpers/test-server-http.ts` → `shared/test/test-server-http.ts` -- `cli/__tests__/helpers/test-server-stdio.ts` → `shared/test/test-server-stdio.ts` - -**Note**: `cli/__tests__/helpers/fixtures.ts` (CLI-specific test utilities like config file creation) stays in CLI tests, not shared. - -### 3.3 Migration to Shared Directory - -1. **Create shared directory structure** - - Create `shared/` directory at root - - Create `shared/test/` subdirectory - -2. **Move runtime utilities** - - Move transport code from `cli/src/transport.ts` to `shared/transport.ts` - - Move config code from `cli/src/utils/config.ts` to `shared/config.ts` - - Move client utilities from `cli/src/client/` to `shared/client/`: - - `connection.ts` → `shared/client/connection.ts` - - `tools.ts` → `shared/client/tools.ts` - - `resources.ts` → `shared/client/resources.ts` - - `prompts.ts` → `shared/client/prompts.ts` - - `types.ts` → `shared/client/types.ts` - - `index.ts` → `shared/client/index.ts` (re-exports) - -3. **Move test fixtures** - - Move `test-fixtures.ts` from `cli/__tests__/helpers/` to `shared/test/test-server-fixtures.ts` (renamed) - - Move test server implementations to `shared/test/` - - Update imports in CLI tests to use `shared/test/` - - Update imports in TUI tests (if any) to use `shared/test/` - - **Note**: `fixtures.ts` (CLI-specific test utilities) stays in CLI tests - -4. **Update imports** - - Update CLI to import from `../shared/` - - Update TUI to import from `../shared/` - - Update CLI tests to import from `../../shared/test/` - - Update TUI tests to import from `../../shared/test/` - -5. **Test thoroughly** - - Ensure CLI still works - - Ensure TUI still works - - Ensure all tests pass (CLI and TUI) - - Verify test harness servers work correctly - -### 3.4 Considerations - -- **Not a package**: This is just a directory for internal helpers, not a published package -- **Direct imports**: Both CLI and TUI import directly from `shared/` directory -- **Test fixtures shared**: Test harness servers and fixtures are available to both CLI and TUI tests -- **Browser vs Node**: Some utilities may need different implementations for web client (evaluate later) +### 2.2 Code to Move + +**MCP Module** (from `tui/src/mcp/` to `shared/mcp/`): + +- `inspectorClient.ts` → `shared/mcp/inspectorClient.ts` +- `transport.ts` → `shared/mcp/transport.ts` +- `config.ts` → `shared/mcp/config.ts` (add `argsToMcpServerConfig` function) +- `types.ts` → `shared/mcp/types.ts` +- `messageTrackingTransport.ts` → `shared/mcp/messageTrackingTransport.ts` +- `client.ts` → `shared/mcp/client.ts` +- `index.ts` → `shared/mcp/index.ts` + +**React Hook** (from `tui/src/hooks/` to `shared/react/`): + +- `useInspectorClient.ts` → `shared/react/useInspectorClient.ts` + +**Test Fixtures** (from `cli/__tests__/helpers/` to `shared/test/`): + +- `test-fixtures.ts` → `shared/test/test-server-fixtures.ts` (renamed) +- `test-server-http.ts` → `shared/test/test-server-http.ts` +- `test-server-stdio.ts` → `shared/test/test-server-stdio.ts` + +### 2.3 Add argsToMcpServerConfig Function + +Add a utility function to convert CLI arguments to `MCPServerConfig`: + +```typescript +// shared/mcp/config.ts +export function argsToMcpServerConfig(args: { + command?: string; + args?: string[]; + envArgs?: Record; + transport?: "stdio" | "sse" | "streamable-http"; + serverUrl?: string; + headers?: Record; +}): MCPServerConfig { + // Convert CLI args format to MCPServerConfig format + // Handle stdio, SSE, and streamableHttp transports +} +``` + +**Key conversions needed**: + +- CLI `transport: "streamable-http"` → `MCPServerConfig.type: "streamableHttp"` +- CLI `command` + `args` + `envArgs` → `StdioServerConfig` +- CLI `serverUrl` + `headers` → `SseServerConfig` or `StreamableHttpServerConfig` +- Auto-detect transport type from URL if not specified + +### 2.4 Status + +**Phase 2 is complete.** All MCP code has been moved to `shared/mcp/`, the React hook to `shared/react/`, and test fixtures to `shared/test/`. The `argsToMcpServerConfig()` function has been implemented. TUI successfully imports from and uses the shared code. ## File-by-File Migration Guide ### From mcp-inspect to inspector/tui -| mcp-inspect | inspector/tui | Phase | Notes | -| --------------------------- | ------------------------------- | ----- | --------------------------------------------------- | -| `tui.tsx` | `tui/tui.tsx` | 1 | Entry point, remove CLI mode handling | -| `src/App.tsx` | `tui/src/App.tsx` | 1 | Main TUI application | -| `src/components/*` | `tui/src/components/*` | 1 | All TUI components | -| `src/hooks/*` | `tui/src/hooks/*` | 1 | TUI-specific hooks | -| `src/types/*` | `tui/src/types/*` | 1 | TUI-specific types | -| `src/cli.ts` | **DELETE** | 1 | CLI functionality exists in `cli/src/index.ts` | -| `src/utils/transport.ts` | `tui/src/utils/transport.ts` | 1 | Keep in Phase 1, replace with CLI import in Phase 2 | -| `src/utils/config.ts` | `tui/src/utils/config.ts` | 1 | Keep in Phase 1, replace with CLI import in Phase 2 | -| `src/utils/client.ts` | `tui/src/utils/client.ts` | 1 | Keep in Phase 1, replace with CLI import in Phase 2 | -| `src/utils/schemaToForm.ts` | `tui/src/utils/schemaToForm.ts` | 1 | TUI-specific (form generation), keep | - -### CLI Code to Share - -| Current Location | Phase 2 Action | Phase 3 Action | Notes | -| -------------------------------------------- | ------------------------------------------------- | ------------------------------------------------------- | -------------------------------------------------------- | -| `cli/src/transport.ts` | TUI imports directly | Move to `shared/transport.ts` | Already well-structured | -| `cli/src/cli.ts::loadConfigFile()` | Extract to `cli/src/utils/config.ts`, TUI imports | Move to `shared/config.ts` | Needs extraction | -| `cli/src/client/connection.ts` | TUI imports directly | Move to `shared/client/connection.ts` | Connection management, logging | -| `cli/src/client/tools.ts` | TUI imports directly | Move to `shared/client/tools.ts` | Tool listing and calling with metadata | -| `cli/src/client/resources.ts` | TUI imports directly | Move to `shared/client/resources.ts` | Resource operations with metadata | -| `cli/src/client/prompts.ts` | TUI imports directly | Move to `shared/client/prompts.ts` | Prompt operations with metadata | -| `cli/src/client/types.ts` | TUI imports directly | Move to `shared/client/types.ts` | Shared types (McpResponse, etc.) | -| `cli/src/client/index.ts` | TUI imports directly | Move to `shared/client/index.ts` | Re-exports | -| `cli/src/index.ts::parseArgs()` | Keep CLI-specific | Keep CLI-specific | CLI-only argument parsing | -| `cli/__tests__/helpers/test-fixtures.ts` | Keep in CLI tests | Move to `shared/test/test-server-fixtures.ts` (renamed) | Shared test server configs and definitions | -| `cli/__tests__/helpers/test-server-http.ts` | Keep in CLI tests | Move to `shared/test/test-server-http.ts` | Shared test harness | -| `cli/__tests__/helpers/test-server-stdio.ts` | Keep in CLI tests | Move to `shared/test/test-server-stdio.ts` | Shared test harness | -| `cli/__tests__/helpers/fixtures.ts` | Keep in CLI tests | Keep in CLI tests | CLI-specific test utilities (config file creation, etc.) | +| mcp-inspect | inspector/tui | Phase | Notes | +| --------------------------- | ------------------------------- | ----- | ---------------------------------------------------------------- | +| `tui.tsx` | `tui/tui.tsx` | 1 | Entry point, remove CLI mode handling | +| `src/App.tsx` | `tui/src/App.tsx` | 1 | Main TUI application | +| `src/components/*` | `tui/src/components/*` | 1 | All TUI components | +| `src/hooks/*` | `tui/src/hooks/*` | 1 | TUI-specific hooks | +| `src/types/*` | `tui/src/types/*` | 1 | TUI-specific types | +| `src/cli.ts` | **DELETE** | 1 | CLI functionality exists in `cli/src/index.ts` | +| `src/utils/transport.ts` | `shared/mcp/transport.ts` | 2 | Moved to `shared/mcp/` (Phase 2 complete) | +| `src/utils/config.ts` | `shared/mcp/config.ts` | 2 | Moved to `shared/mcp/` (Phase 2 complete) | +| `src/utils/client.ts` | **N/A** | 1 | Replaced by `InspectorClient` in `shared/mcp/inspectorClient.ts` | +| `src/utils/schemaToForm.ts` | `tui/src/utils/schemaToForm.ts` | 1 | TUI-specific (form generation), keep | + +### Code Sharing Strategy + +| Current Location | Phase 2 Status | Phase 3 Action | Notes | +| -------------------------------------------- | ----------------------------------------------------------------- | -------------------------------------------------- | -------------------------------------------------------- | +| `tui/src/mcp/inspectorClient.ts` | ✅ Moved to `shared/mcp/inspectorClient.ts` | CLI imports and uses | Main client wrapper, replaces CLI wrapper functions | +| `tui/src/mcp/transport.ts` | ✅ Moved to `shared/mcp/transport.ts` | CLI imports and uses | Transport creation from MCPServerConfig | +| `tui/src/mcp/config.ts` | ✅ Moved to `shared/mcp/config.ts` (with `argsToMcpServerConfig`) | CLI imports and uses | Config loading and argument conversion | +| `tui/src/mcp/types.ts` | ✅ Moved to `shared/mcp/types.ts` | CLI imports and uses | Shared types (MCPServerConfig, MessageEntry, etc.) | +| `tui/src/mcp/messageTrackingTransport.ts` | ✅ Moved to `shared/mcp/messageTrackingTransport.ts` | CLI imports (if needed) | Transport wrapper for message tracking | +| `tui/src/hooks/useInspectorClient.ts` | ✅ Moved to `shared/react/useInspectorClient.ts` | TUI imports from shared | React hook for InspectorClient | +| `cli/src/transport.ts` | Keep (temporary) | **Deprecated** (use `shared/mcp/transport.ts`) | Replaced by `shared/mcp/transport.ts` | +| `cli/src/client/connection.ts` | Keep (temporary) | **Deprecated** (use `InspectorClient`) | Replaced by `InspectorClient` | +| `cli/src/client/tools.ts` | Keep (temporary) | **Deprecated** (use `InspectorClient.getClient()`) | Use SDK methods directly via `InspectorClient` | +| `cli/src/client/resources.ts` | Keep (temporary) | **Deprecated** (use `InspectorClient.getClient()`) | Use SDK methods directly via `InspectorClient` | +| `cli/src/client/prompts.ts` | Keep (temporary) | **Deprecated** (use `InspectorClient.getClient()`) | Use SDK methods directly via `InspectorClient` | +| `cli/src/client/types.ts` | Keep (temporary) | **Deprecated** (use SDK types) | Use SDK types directly | +| `cli/src/index.ts::parseArgs()` | Keep CLI-specific | Keep CLI-specific | CLI-only argument parsing | +| `cli/__tests__/helpers/test-fixtures.ts` | ✅ Moved to `shared/test/test-server-fixtures.ts` (renamed) | CLI tests import from shared | Shared test server configs and definitions | +| `cli/__tests__/helpers/test-server-http.ts` | ✅ Moved to `shared/test/test-server-http.ts` | CLI tests import from shared | Shared test harness | +| `cli/__tests__/helpers/test-server-stdio.ts` | ✅ Moved to `shared/test/test-server-stdio.ts` | CLI tests import from shared | Shared test harness | +| `cli/__tests__/helpers/fixtures.ts` | Keep in CLI tests | Keep in CLI tests | CLI-specific test utilities (config file creation, etc.) | + +## Phase 3: Convert CLI to Use Shared Code + +Replace the CLI's direct MCP SDK usage with `InspectorClient` from `shared/mcp/`, consolidating client logic and leveraging the shared codebase. + +### 3.1 Current CLI Architecture + +The CLI currently: + +- Uses direct SDK `Client` instances (`new Client()`) +- Has its own `transport.ts` with `createTransport()` and `TransportOptions` +- Has `createTransportOptions()` function to convert CLI args to transport options +- Uses `client/*` utilities that wrap SDK methods (tools, resources, prompts, connection) +- Manages connection lifecycle manually (`connect()`, `disconnect()`) + +**Current files to be replaced/deprecated:** + +- `cli/src/transport.ts` - Replace with `shared/mcp/transport.ts` +- `cli/src/client/connection.ts` - Replace with `InspectorClient.connect()`/`disconnect()` +- `cli/src/client/tools.ts` - Update to use `InspectorClient.getClient()` +- `cli/src/client/resources.ts` - Update to use `InspectorClient.getClient()` +- `cli/src/client/prompts.ts` - Update to use `InspectorClient.getClient()` + +### 3.2 Conversion Strategy + +**Replace direct Client usage with InspectorClient:** + +1. **Replace transport creation:** + - Remove `createTransportOptions()` function + - Replace `createTransport(transportOptions)` with `createTransportFromConfig(mcpServerConfig)` + - Convert CLI args to `MCPServerConfig` using `argsToMcpServerConfig()` + +2. **Replace connection management:** + - Replace `new Client()` + `connect(client, transport)` with `new InspectorClient(config)` + `inspectorClient.connect()` + - Replace `disconnect(transport)` with `inspectorClient.disconnect()` + +3. **Update client utilities:** + - Keep CLI-specific utility functions (`listTools`, `callTool`, etc.) but update them to accept `InspectorClient` instead of `Client` + - Use `inspectorClient.getClient()` to access SDK methods + - This preserves the CLI's API while using shared code internally + +4. **Update main CLI flow:** + - In `callMethod()`, replace transport/client setup with `InspectorClient` + - Update all method calls to use utilities that work with `InspectorClient` + +### 3.3 Migration Steps + +1. **Update imports in `cli/src/index.ts`:** + - Import `InspectorClient` from `../../shared/mcp/index.js` + - Import `argsToMcpServerConfig` from `../../shared/mcp/index.js` + - Import `createTransportFromConfig` from `../../shared/mcp/index.js` + - Import `MCPServerConfig` type from `../../shared/mcp/index.js` + +2. **Replace transport creation:** + - Remove `createTransportOptions()` function + - Remove `createTransport()` import from `./transport.js` + - Update `callMethod()` to use `argsToMcpServerConfig()` to convert CLI args + - Use `createTransportFromConfig()` instead of `createTransport()` + +3. **Replace Client with InspectorClient:** + - Replace `new Client(clientIdentity)` with `new InspectorClient(mcpServerConfig)` + - Replace `connect(client, transport)` with `inspectorClient.connect()` + - Replace `disconnect(transport)` with `inspectorClient.disconnect()` + +4. **Update client utilities:** + - Update `cli/src/client/tools.ts` to accept `InspectorClient` instead of `Client` + - Update `cli/src/client/resources.ts` to accept `InspectorClient` instead of `Client` + - Update `cli/src/client/prompts.ts` to accept `InspectorClient` instead of `Client` + - Update `cli/src/client/connection.ts` or remove it (use `InspectorClient` methods directly) + - All utilities should use `inspectorClient.getClient()` to access SDK methods + +5. **Update CLI argument conversion:** + - Map CLI's `Args` type to `argsToMcpServerConfig()` parameters + - Handle transport type mapping: CLI uses `"http"` for streamable-http, map to `"streamable-http"` for the function + - Ensure all CLI argument combinations are correctly converted + +6. **Update tests:** + - Update CLI test imports to use `../../shared/test/` (already done in Phase 2) + - Update tests to use `InspectorClient` instead of direct `Client` + - Verify all test scenarios still pass + +7. **Deprecate old files:** + - Mark `cli/src/transport.ts` as deprecated (keep for now, add deprecation comment) + - Mark `cli/src/client/connection.ts` as deprecated (keep for now, add deprecation comment) + - These can be removed in a future cleanup after confirming everything works + +8. **Test thoroughly:** + - Test all CLI methods (tools/list, tools/call, resources/list, resources/read, prompts/list, prompts/get, logging/setLevel) + - Test all transport types (stdio, SSE, streamable-http) + - Verify CLI output format is preserved (JSON output should be identical) + - Run all CLI tests + - Test with real MCP servers (not just test harness) + +### 3.4 Example Conversion + +**Before (current):** + +```typescript +const transportOptions = createTransportOptions( + args.target, + args.transport, + args.headers, +); +const transport = createTransport(transportOptions); +const client = new Client(clientIdentity); +await connect(client, transport); +const result = await listTools(client, args.metadata); +await disconnect(transport); +``` + +**After (with shared code):** + +```typescript +const config = argsToMcpServerConfig({ + command: args.target[0], + args: args.target.slice(1), + transport: args.transport === "http" ? "streamable-http" : args.transport, + serverUrl: args.target[0]?.startsWith("http") ? args.target[0] : undefined, + headers: args.headers, +}); +const inspectorClient = new InspectorClient(config); +await inspectorClient.connect(); +const result = await listTools(inspectorClient, args.metadata); +await inspectorClient.disconnect(); +``` ## Package.json Configuration @@ -516,69 +608,47 @@ This provides a single entry point with consistent argument parsing across all t - [x] Test server selection - [x] Verify TUI works standalone without CLI dependencies -### Phase 2: Code Sharing via Direct Imports - -- [ ] Extract `loadConfigFile()` from `cli/src/cli.ts` to `cli/src/utils/config.ts` (if not already there) -- [ ] Update TUI to import transport from `cli/src/transport.ts` -- [ ] Update TUI to import config from `cli/src/utils/config.ts` -- [ ] Update TUI to import client utilities from `cli/src/client/` -- [ ] Delete duplicate utilities from TUI (transport, config, client) -- [ ] Test TUI with test harness servers (all transports) -- [ ] Verify all functionality still works +### Phase 2: Extract MCP Module to Shared Directory + +- [x] Create `shared/` directory structure (not a workspace) +- [x] Create `shared/mcp/` subdirectory +- [x] Create `shared/react/` subdirectory +- [x] Create `shared/test/` subdirectory +- [x] Move MCP module from `tui/src/mcp/` to `shared/mcp/`: + - [x] `inspectorClient.ts` → `shared/mcp/inspectorClient.ts` + - [x] `transport.ts` → `shared/mcp/transport.ts` + - [x] `config.ts` → `shared/mcp/config.ts` + - [x] `types.ts` → `shared/mcp/types.ts` + - [x] `messageTrackingTransport.ts` → `shared/mcp/messageTrackingTransport.ts` + - [x] `client.ts` → `shared/mcp/client.ts` + - [x] `index.ts` → `shared/mcp/index.ts` +- [x] Add `argsToMcpServerConfig()` function to `shared/mcp/config.ts` +- [x] Move React hook from `tui/src/hooks/useInspectorClient.ts` to `shared/react/useInspectorClient.ts` +- [x] Move test fixtures from `cli/__tests__/helpers/` to `shared/test/`: + - [x] `test-fixtures.ts` → `shared/test/test-server-fixtures.ts` (renamed) + - [x] `test-server-http.ts` → `shared/test/test-server-http.ts` + - [x] `test-server-stdio.ts` → `shared/test/test-server-stdio.ts` +- [x] Update TUI imports to use `../../shared/mcp/` and `../../shared/react/` +- [x] Update CLI test imports to use `../../shared/test/` +- [x] Test TUI functionality (verify it still works with shared code) +- [x] Test CLI tests (verify test fixtures work from new location) +- [x] Update documentation + +### Phase 3: Convert CLI to Use Shared Code + +- [ ] Update CLI imports to use `InspectorClient`, `argsToMcpServerConfig`, `createTransportFromConfig` from `../../shared/mcp/` +- [ ] Replace `createTransportOptions()` with `argsToMcpServerConfig()` in `cli/src/index.ts` +- [ ] Replace `createTransport()` with `createTransportFromConfig()` +- [ ] Replace `new Client()` + `connect()` with `new InspectorClient()` + `connect()` +- [ ] Replace `disconnect(transport)` with `inspectorClient.disconnect()` +- [ ] Update `cli/src/client/tools.ts` to accept `InspectorClient` instead of `Client` +- [ ] Update `cli/src/client/resources.ts` to accept `InspectorClient` instead of `Client` +- [ ] Update `cli/src/client/prompts.ts` to accept `InspectorClient` instead of `Client` +- [ ] Update `cli/src/client/connection.ts` or remove it (use `InspectorClient` methods) +- [ ] Handle transport type mapping (`"http"` → `"streamable-http"`) +- [ ] Mark `cli/src/transport.ts` as deprecated +- [ ] Mark `cli/src/client/connection.ts` as deprecated +- [ ] Test all CLI methods with all transport types +- [ ] Verify CLI output format is preserved (identical JSON) +- [ ] Run all CLI tests - [ ] Update documentation - -### Phase 3: Extract Shared Code to Shared Directory - -- [ ] Create `shared/` directory structure (not a workspace) -- [ ] Create `shared/test/` subdirectory -- [ ] Move transport code from CLI to `shared/transport.ts` -- [ ] Move config code from CLI to `shared/config.ts` -- [ ] Move client utilities from CLI to `shared/client/`: - - [ ] `connection.ts` → `shared/client/connection.ts` - - [ ] `tools.ts` → `shared/client/tools.ts` - - [ ] `resources.ts` → `shared/client/resources.ts` - - [ ] `prompts.ts` → `shared/client/prompts.ts` - - [ ] `types.ts` → `shared/client/types.ts` - - [ ] `index.ts` → `shared/client/index.ts` -- [ ] Move test fixtures from `cli/__tests__/helpers/test-fixtures.ts` to `shared/test/test-server-fixtures.ts` (renamed) -- [ ] Move test server HTTP from `cli/__tests__/helpers/test-server-http.ts` to `shared/test/test-server-http.ts` -- [ ] Move test server stdio from `cli/__tests__/helpers/test-server-stdio.ts` to `shared/test/test-server-stdio.ts` -- [ ] Update CLI to import from `../shared/` -- [ ] Update TUI to import from `../shared/` -- [ ] Update CLI tests to import from `../../shared/test/` -- [ ] Update TUI tests (if any) to import from `../../shared/test/` -- [ ] Test CLI functionality -- [ ] Test TUI functionality -- [ ] Test CLI tests (verify test harness servers work) -- [ ] Test TUI tests (if any) -- [ ] Evaluate web client needs (may need different implementations) -- [ ] Update documentation - -## Notes - -- The TUI from mcp-inspect is well-structured and should integrate cleanly -- All phase-specific details, code sharing strategies, and implementation notes are documented in their respective sections above - -## Additonal Notes - -InspectorClient wraps or abstracts an McpClient + server - -- Collect message -- Collect logging -- Provide access to client functionality (prompts, resources, tools) - -```javascript -InspectorClient( - transportConfig, // so it can create transport with logging if needed) - maxMessages, // if zero, don't listen - maxLogEvents, // if zero, don't listen -); -// Create Client -// Create Transport (wrap with MessageTrackingTransport if needed) -// - Stdio transport needs to be created with pipe and listener as appropriate -// We will keep the list of messages and log events in this object instead of directl in the React state -``` - -May be used by CLI (plain TypeScript) or in our TUI (React app), so it needs to be React friendly - -- To make it React friendly, event emitter + custom hooks? diff --git a/tui/src/mcp/client.ts b/shared/mcp/client.ts similarity index 100% rename from tui/src/mcp/client.ts rename to shared/mcp/client.ts diff --git a/shared/mcp/config.ts b/shared/mcp/config.ts new file mode 100644 index 000000000..ac99a9714 --- /dev/null +++ b/shared/mcp/config.ts @@ -0,0 +1,114 @@ +import { readFileSync } from "fs"; +import { resolve } from "path"; +import type { + MCPConfig, + MCPServerConfig, + StdioServerConfig, + SseServerConfig, + StreamableHttpServerConfig, +} from "./types.js"; + +/** + * Loads and validates an MCP servers configuration file + * @param configPath - Path to the config file (relative to process.cwd() or absolute) + * @returns The parsed MCPConfig + * @throws Error if the file cannot be loaded, parsed, or is invalid + */ +export function loadMcpServersConfig(configPath: string): MCPConfig { + try { + const resolvedPath = resolve(process.cwd(), configPath); + const configContent = readFileSync(resolvedPath, "utf-8"); + const config = JSON.parse(configContent) as MCPConfig; + + if (!config.mcpServers) { + throw new Error("Configuration file must contain an mcpServers element"); + } + + return config; + } catch (error) { + if (error instanceof Error) { + throw new Error(`Error loading configuration: ${error.message}`); + } + throw new Error("Error loading configuration: Unknown error"); + } +} + +/** + * Converts CLI arguments to MCPServerConfig format + * @param args - CLI arguments object + * @returns MCPServerConfig suitable for creating an InspectorClient + */ +export function argsToMcpServerConfig(args: { + command?: string; + args?: string[]; + envArgs?: Record; + transport?: "stdio" | "sse" | "streamable-http"; + serverUrl?: string; + headers?: Record; +}): MCPServerConfig { + // If serverUrl is provided, it's an HTTP-based transport + if (args.serverUrl) { + const url = new URL(args.serverUrl); + + // Determine transport type + let transportType: "sse" | "streamableHttp"; + if (args.transport) { + // Map "streamable-http" to "streamableHttp" + if (args.transport === "streamable-http") { + transportType = "streamableHttp"; + } else if (args.transport === "sse") { + transportType = "sse"; + } else { + // Default to SSE for URLs if transport is not recognized + transportType = "sse"; + } + } else { + // Auto-detect from URL path + if (url.pathname.endsWith("/mcp")) { + transportType = "streamableHttp"; + } else { + transportType = "sse"; + } + } + + if (transportType === "sse") { + const config: SseServerConfig = { + type: "sse", + url: args.serverUrl, + }; + if (args.headers) { + config.headers = args.headers; + } + return config; + } else { + const config: StreamableHttpServerConfig = { + type: "streamableHttp", + url: args.serverUrl, + }; + if (args.headers) { + config.headers = args.headers; + } + return config; + } + } + + // Otherwise, it's a stdio transport + if (!args.command) { + throw new Error("Command is required for stdio transport"); + } + + const config: StdioServerConfig = { + type: "stdio", + command: args.command, + }; + + if (args.args && args.args.length > 0) { + config.args = args.args; + } + + if (args.envArgs && Object.keys(args.envArgs).length > 0) { + config.env = args.envArgs; + } + + return config; +} diff --git a/tui/src/mcp/index.ts b/shared/mcp/index.ts similarity index 86% rename from tui/src/mcp/index.ts rename to shared/mcp/index.ts index 1d0057e00..af9348541 100644 --- a/tui/src/mcp/index.ts +++ b/shared/mcp/index.ts @@ -4,7 +4,7 @@ export { InspectorClient } from "./inspectorClient.js"; export type { InspectorClientOptions } from "./inspectorClient.js"; -export { loadMcpServersConfig } from "./config.js"; +export { loadMcpServersConfig, argsToMcpServerConfig } from "./config.js"; // Re-export types used by consumers export type { diff --git a/tui/src/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts similarity index 100% rename from tui/src/mcp/inspectorClient.ts rename to shared/mcp/inspectorClient.ts diff --git a/tui/src/mcp/messageTrackingTransport.ts b/shared/mcp/messageTrackingTransport.ts similarity index 100% rename from tui/src/mcp/messageTrackingTransport.ts rename to shared/mcp/messageTrackingTransport.ts diff --git a/tui/src/mcp/transport.ts b/shared/mcp/transport.ts similarity index 100% rename from tui/src/mcp/transport.ts rename to shared/mcp/transport.ts diff --git a/tui/src/mcp/types.ts b/shared/mcp/types.ts similarity index 100% rename from tui/src/mcp/types.ts rename to shared/mcp/types.ts diff --git a/tui/src/hooks/useInspectorClient.ts b/shared/react/useInspectorClient.ts similarity index 100% rename from tui/src/hooks/useInspectorClient.ts rename to shared/react/useInspectorClient.ts diff --git a/cli/__tests__/helpers/test-fixtures.ts b/shared/test/test-server-fixtures.ts similarity index 100% rename from cli/__tests__/helpers/test-fixtures.ts rename to shared/test/test-server-fixtures.ts diff --git a/cli/__tests__/helpers/test-server-http.ts b/shared/test/test-server-http.ts similarity index 99% rename from cli/__tests__/helpers/test-server-http.ts rename to shared/test/test-server-http.ts index 4626ef516..13284d352 100644 --- a/cli/__tests__/helpers/test-server-http.ts +++ b/shared/test/test-server-http.ts @@ -7,7 +7,7 @@ import express from "express"; import { createServer as createHttpServer, Server as HttpServer } from "http"; import { createServer as createNetServer } from "net"; import * as z from "zod/v4"; -import type { ServerConfig } from "./test-fixtures.js"; +import type { ServerConfig } from "./test-server-fixtures.js"; export interface RecordedRequest { method: string; diff --git a/cli/__tests__/helpers/test-server-stdio.ts b/shared/test/test-server-stdio.ts similarity index 98% rename from cli/__tests__/helpers/test-server-stdio.ts rename to shared/test/test-server-stdio.ts index 7fe6a1c47..b720a21f8 100644 --- a/cli/__tests__/helpers/test-server-stdio.ts +++ b/shared/test/test-server-stdio.ts @@ -16,8 +16,8 @@ import type { ToolDefinition, PromptDefinition, ResourceDefinition, -} from "./test-fixtures.js"; -import { getDefaultServerConfig } from "./test-fixtures.js"; +} from "./test-server-fixtures.js"; +import { getDefaultServerConfig } from "./test-server-fixtures.js"; const __dirname = dirname(fileURLToPath(import.meta.url)); diff --git a/tui/package.json b/tui/package.json index b70df9f65..1c78f282b 100644 --- a/tui/package.json +++ b/tui/package.json @@ -19,7 +19,7 @@ ], "scripts": { "build": "tsc", - "dev": "tsx tui.tsx" + "dev": "NODE_PATH=./node_modules:$NODE_PATH tsx tui.tsx" }, "dependencies": { "@modelcontextprotocol/sdk": "^1.25.2", diff --git a/tui/src/App.tsx b/tui/src/App.tsx index bc5aa0e82..cf30939fb 100644 --- a/tui/src/App.tsx +++ b/tui/src/App.tsx @@ -3,10 +3,10 @@ import { Box, Text, useInput, useApp, type Key } from "ink"; import { readFileSync } from "fs"; import { fileURLToPath } from "url"; import { dirname, join } from "path"; -import type { MessageEntry } from "./mcp/index.js"; -import { loadMcpServersConfig } from "./mcp/index.js"; -import { InspectorClient } from "./mcp/index.js"; -import { useInspectorClient } from "./hooks/useInspectorClient.js"; +import type { MessageEntry } from "../../shared/mcp/index.js"; +import { loadMcpServersConfig } from "../../shared/mcp/index.js"; +import { InspectorClient } from "../../shared/mcp/index.js"; +import { useInspectorClient } from "../../shared/react/useInspectorClient.js"; import { Tabs, type TabType, tabs as tabList } from "./components/Tabs.js"; import { InfoTab } from "./components/InfoTab.js"; import { ResourcesTab } from "./components/ResourcesTab.js"; diff --git a/tui/src/components/HistoryTab.tsx b/tui/src/components/HistoryTab.tsx index 693681dd2..73e449d6b 100644 --- a/tui/src/components/HistoryTab.tsx +++ b/tui/src/components/HistoryTab.tsx @@ -1,7 +1,7 @@ import React, { useState, useMemo, useEffect, useRef } from "react"; import { Box, Text, useInput, type Key } from "ink"; import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; -import type { MessageEntry } from "../mcp/index.js"; +import type { MessageEntry } from "../../../shared/mcp/index.js"; interface HistoryTabProps { serverName: string | null; diff --git a/tui/src/components/InfoTab.tsx b/tui/src/components/InfoTab.tsx index 00b6fae1f..7ebb6687f 100644 --- a/tui/src/components/InfoTab.tsx +++ b/tui/src/components/InfoTab.tsx @@ -1,7 +1,10 @@ import React, { useRef } from "react"; import { Box, Text, useInput, type Key } from "ink"; import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; -import type { MCPServerConfig, ServerState } from "../mcp/index.js"; +import type { + MCPServerConfig, + ServerState, +} from "../../../shared/mcp/index.js"; interface InfoTabProps { serverName: string | null; diff --git a/tui/src/components/NotificationsTab.tsx b/tui/src/components/NotificationsTab.tsx index 9f336588c..03c86d1bb 100644 --- a/tui/src/components/NotificationsTab.tsx +++ b/tui/src/components/NotificationsTab.tsx @@ -2,7 +2,7 @@ import React, { useEffect, useRef } from "react"; import { Box, Text, useInput, type Key } from "ink"; import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; -import type { StderrLogEntry } from "../mcp/index.js"; +import type { StderrLogEntry } from "../../../shared/mcp/index.js"; interface NotificationsTabProps { client: Client | null; diff --git a/tui/src/mcp/config.ts b/tui/src/mcp/config.ts deleted file mode 100644 index 9aaeca4bc..000000000 --- a/tui/src/mcp/config.ts +++ /dev/null @@ -1,28 +0,0 @@ -import { readFileSync } from "fs"; -import { resolve } from "path"; -import type { MCPConfig } from "./types.js"; - -/** - * Loads and validates an MCP servers configuration file - * @param configPath - Path to the config file (relative to process.cwd() or absolute) - * @returns The parsed MCPConfig - * @throws Error if the file cannot be loaded, parsed, or is invalid - */ -export function loadMcpServersConfig(configPath: string): MCPConfig { - try { - const resolvedPath = resolve(process.cwd(), configPath); - const configContent = readFileSync(resolvedPath, "utf-8"); - const config = JSON.parse(configContent) as MCPConfig; - - if (!config.mcpServers) { - throw new Error("Configuration file must contain an mcpServers element"); - } - - return config; - } catch (error) { - if (error instanceof Error) { - throw new Error(`Error loading configuration: ${error.message}`); - } - throw new Error("Error loading configuration: Unknown error"); - } -} diff --git a/tui/tsconfig.json b/tui/tsconfig.json index a444f1099..fe48e3092 100644 --- a/tui/tsconfig.json +++ b/tui/tsconfig.json @@ -9,9 +9,8 @@ "skipLibCheck": true, "forceConsistentCasingInFileNames": true, "resolveJsonModule": true, - "outDir": "./build", - "rootDir": "./" + "outDir": "./build" }, - "include": ["src/**/*", "tui.tsx"], + "include": ["src/**/*", "tui.tsx", "../shared/**/*.ts", "../shared/**/*.tsx"], "exclude": ["node_modules", "build"] } From 824e687d36a9db56429f6626a7acb8c6e225e341 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Mon, 19 Jan 2026 21:10:08 -0800 Subject: [PATCH 16/44] Integrate shared code as a workspace package, updating CLI and TUI to utilize shared MCP functionality. Enhanced build scripts to include shared, upgraded React and TypeScript dependencies across all workspaces, and implemented Project References for improved type resolution and build order. --- .gitignore | 1 + cli/package.json | 1 + cli/src/index.ts | 104 + cli/tsconfig.json | 3 +- client/package.json | 8 +- docs/tui-integration-design.md | 118 +- package-lock.json | 3112 +++++++++-------------- package.json | 6 +- shared/mcp/config.ts | 93 +- shared/mcp/inspectorClient.ts | 21 +- shared/mcp/transport.ts | 28 +- shared/mcp/types.ts | 2 +- shared/package.json | 22 + shared/tsconfig.json | 21 + tui/package.json | 3 +- tui/src/App.tsx | 8 +- tui/src/components/HistoryTab.tsx | 2 +- tui/src/components/InfoTab.tsx | 4 +- tui/src/components/NotificationsTab.tsx | 2 +- tui/test-config.json | 1 + tui/tsconfig.json | 8 +- 21 files changed, 1592 insertions(+), 1976 deletions(-) create mode 100644 shared/package.json create mode 100644 shared/tsconfig.json create mode 100644 tui/test-config.json diff --git a/.gitignore b/.gitignore index 80254a461..05d4978cb 100644 --- a/.gitignore +++ b/.gitignore @@ -9,6 +9,7 @@ client/tsconfig.app.tsbuildinfo client/tsconfig.node.tsbuildinfo cli/build tui/build +shared/build test-output tool-test-output metadata-test-output diff --git a/cli/package.json b/cli/package.json index ae24ff79a..81cd71768 100644 --- a/cli/package.json +++ b/cli/package.json @@ -30,6 +30,7 @@ "vitest": "^4.0.17" }, "dependencies": { + "@modelcontextprotocol/inspector-shared": "*", "@modelcontextprotocol/sdk": "^1.25.2", "commander": "^13.1.0", "express": "^5.2.1", diff --git a/cli/src/index.ts b/cli/src/index.ts index 45a71a052..17d7160ff 100644 --- a/cli/src/index.ts +++ b/cli/src/index.ts @@ -21,6 +21,12 @@ import { import { handleError } from "./error-handler.js"; import { createTransport, TransportOptions } from "./transport.js"; import { awaitableLog } from "./utils/awaitable-log.js"; +import type { + MCPServerConfig, + StdioServerConfig, + SseServerConfig, + StreamableHttpServerConfig, +} from "@modelcontextprotocol/inspector-shared/mcp/types.js"; // JSON value type for CLI arguments type JsonValue = @@ -47,6 +53,104 @@ type Args = { metadata?: Record; }; +/** + * Converts CLI Args to MCPServerConfig format + * This will be used to create an InspectorClient + */ +function argsToMcpServerConfig(args: Args): MCPServerConfig { + if (args.target.length === 0) { + throw new Error( + "Target is required. Specify a URL or a command to execute.", + ); + } + + const [firstTarget, ...targetArgs] = args.target; + + if (!firstTarget) { + throw new Error("Target is required."); + } + + const isUrl = + firstTarget.startsWith("http://") || firstTarget.startsWith("https://"); + + // Validation: URLs cannot have additional arguments + if (isUrl && targetArgs.length > 0) { + throw new Error("Arguments cannot be passed to a URL-based MCP server."); + } + + // Validation: Transport/URL combinations + if (args.transport) { + if (!isUrl && args.transport !== "stdio") { + throw new Error("Only stdio transport can be used with local commands."); + } + if (isUrl && args.transport === "stdio") { + throw new Error("stdio transport cannot be used with URLs."); + } + } + + // Handle URL-based transports (SSE or streamable-http) + if (isUrl) { + const url = new URL(firstTarget); + + // Determine transport type + let transportType: "sse" | "streamable-http"; + if (args.transport) { + // Convert CLI's "http" to "streamable-http" + if (args.transport === "http") { + transportType = "streamable-http"; + } else if (args.transport === "sse") { + transportType = "sse"; + } else { + // Should not happen due to validation above, but default to SSE + transportType = "sse"; + } + } else { + // Auto-detect from URL path + if (url.pathname.endsWith("/mcp")) { + transportType = "streamable-http"; + } else if (url.pathname.endsWith("/sse")) { + transportType = "sse"; + } else { + // Default to SSE if path doesn't match known patterns + transportType = "sse"; + } + } + + // Create SSE or streamable-http config + if (transportType === "sse") { + const config: SseServerConfig = { + type: "sse", + url: firstTarget, + }; + if (args.headers) { + config.headers = args.headers; + } + return config; + } else { + const config: StreamableHttpServerConfig = { + type: "streamable-http", + url: firstTarget, + }; + if (args.headers) { + config.headers = args.headers; + } + return config; + } + } + + // Handle stdio transport (command-based) + const config: StdioServerConfig = { + type: "stdio", + command: firstTarget, + }; + + if (targetArgs.length > 0) { + config.args = targetArgs; + } + + return config; +} + function createTransportOptions( target: string[], transport?: "sse" | "stdio" | "http", diff --git a/cli/tsconfig.json b/cli/tsconfig.json index effa34f2b..952a54ca8 100644 --- a/cli/tsconfig.json +++ b/cli/tsconfig.json @@ -13,5 +13,6 @@ "noUncheckedIndexedAccess": true }, "include": ["src/**/*"], - "exclude": ["node_modules", "packages", "**/*.spec.ts", "build"] + "exclude": ["node_modules", "packages", "**/*.spec.ts", "build"], + "references": [{ "path": "../shared" }] } diff --git a/client/package.json b/client/package.json index 0f55a31db..ddd6bd699 100644 --- a/client/package.json +++ b/client/package.json @@ -44,8 +44,8 @@ "lucide-react": "^0.523.0", "pkce-challenge": "^4.1.0", "prismjs": "^1.30.0", - "react": "^18.3.1", - "react-dom": "^18.3.1", + "react": "^19.2.3", + "react-dom": "^19.2.3", "react-simple-code-editor": "^0.14.1", "serve-handler": "^6.1.6", "tailwind-merge": "^2.5.3", @@ -58,8 +58,8 @@ "@types/jest": "^29.5.14", "@types/node": "^22.17.0", "@types/prismjs": "^1.26.5", - "@types/react": "^18.3.23", - "@types/react-dom": "^18.3.0", + "@types/react": "^19.2.7", + "@types/react-dom": "^19.2.3", "@types/serve-handler": "^6.1.4", "@vitejs/plugin-react": "^5.0.4", "autoprefixer": "^10.4.20", diff --git a/docs/tui-integration-design.md b/docs/tui-integration-design.md index d6b4e511b..706075eca 100644 --- a/docs/tui-integration-design.md +++ b/docs/tui-integration-design.md @@ -70,7 +70,9 @@ inspector/ │ │ └── components/ # TUI React components │ ├── tui.tsx # TUI entry point │ └── package.json -├── shared/ # NEW: Shared code directory (Phase 2) +├── shared/ # NEW: Shared code workspace package (Phase 2) +│ ├── package.json # Workspace package config (private, internal-only) +│ ├── tsconfig.json # TypeScript config with composite: true │ ├── mcp/ # MCP client/server interaction code │ │ ├── index.ts # Public API exports │ │ ├── inspectorClient.ts # Main InspectorClient class @@ -90,7 +92,13 @@ inspector/ └── package.json ``` -**Note**: The `shared/` directory is not a workspace/package, just a common directory for shared internal helpers. Direct imports are used from this directory. Test fixtures are also shared so both CLI and TUI tests can use the same test harness servers. +**Note**: The `shared/` directory is a **workspace package** (`@modelcontextprotocol/inspector-shared`) that is: + +- **Private** (`"private": true`) - not published, internal-only +- **Built separately** - compiles to `shared/build/` with TypeScript declarations +- **Referenced via package name** - workspaces import using `@modelcontextprotocol/inspector-shared/*` +- **Uses TypeScript Project References** - CLI and TUI reference shared for build ordering and type resolution +- **React peer dependency** - declares React 19.2.3 as peer dependency (consumers provide React) ## Phase 1: Initial Integration (Standalone TUI) @@ -200,7 +208,7 @@ The project now includes `InspectorClient` (`shared/mcp/inspectorClient.ts`), a - **Event-Driven**: Extends `EventEmitter` for reactive UI updates - **Server Data Management**: Automatically fetches and caches tools, resources, prompts, capabilities, server info, and instructions - **State Management**: Manages connection status, message history, and server state -- **Transport Abstraction**: Works with all transport types (stdio, SSE, streamableHttp) +- **Transport Abstraction**: Works with all transport types (stdio, sse, streamable-http) ### Shared MCP Module Structure (Phase 2 Complete) @@ -227,14 +235,17 @@ The MCP-related code has been moved to `shared/mcp/` and is used by both TUI and Move the TUI's MCP module to a shared directory so both TUI and CLI can use it. This establishes the shared codebase before converting the CLI. -**Status**: Phase 2 is complete. All MCP code has been moved to `shared/mcp/`, the React hook moved to `shared/react/`, and test fixtures moved to `shared/test/`. The `argsToMcpServerConfig()` function has been implemented. +**Status**: Phase 2 is complete. All MCP code has been moved to `shared/mcp/`, the React hook moved to `shared/react/`, and test fixtures moved to `shared/test/`. The `argsToMcpServerConfig()` function has been implemented. Shared is configured as a workspace package with TypeScript Project References. React 19.2.3 is used consistently across all workspaces. -### 2.1 Shared Directory Structure +### 2.1 Shared Package Structure -Create a `shared/` directory at the root level (not a workspace, just a directory): +Create a `shared/` workspace package at the root level: ``` -shared/ # Not a workspace, just a directory +shared/ # Workspace package: @modelcontextprotocol/inspector-shared +├── package.json # Package config (private: true, peerDependencies: react) +├── tsconfig.json # TypeScript config (composite: true, declaration: true) +├── build/ # Compiled output (JS + .d.ts files) ├── mcp/ # MCP client/server interaction code │ ├── index.ts # Re-exports public API │ ├── inspectorClient.ts # Main InspectorClient class @@ -251,6 +262,28 @@ shared/ # Not a workspace, just a directory └── test-server-stdio.ts ``` +**Package Configuration:** + +- `package.json`: Declares `"private": true"` (internal-only, not published) +- `peerDependencies`: `"react": "^19.2.3"` (consumers provide React) +- `devDependencies`: `react`, `@types/react`, `typescript` (for compilation) +- `main`: `"./build/index.js"` (compiled output) +- `types`: `"./build/index.d.ts"` (TypeScript declarations) + +**TypeScript Configuration:** + +- `composite: true` - Enables Project References +- `declaration: true` - Generates .d.ts files +- `rootDir: "."` - Compiles from source root +- `outDir: "./build"` - Outputs to build directory + +**Workspace Integration:** + +- Added to root `workspaces` array +- CLI and TUI declare dependency: `"@modelcontextprotocol/inspector-shared": "*"` +- TypeScript Project References: `"references": [{ "path": "../shared" }]` +- Build order: shared builds first, then CLI/TUI + ### 2.2 Code to Move **MCP Module** (from `tui/src/mcp/` to `shared/mcp/`): @@ -288,20 +321,51 @@ export function argsToMcpServerConfig(args: { headers?: Record; }): MCPServerConfig { // Convert CLI args format to MCPServerConfig format - // Handle stdio, SSE, and streamableHttp transports + // Handle stdio, SSE, and streamable-http transports } ``` **Key conversions needed**: -- CLI `transport: "streamable-http"` → `MCPServerConfig.type: "streamableHttp"` +- CLI `transport: "streamable-http"` → `MCPServerConfig.type: "streamable-http"` (no mapping needed) - CLI `command` + `args` + `envArgs` → `StdioServerConfig` - CLI `serverUrl` + `headers` → `SseServerConfig` or `StreamableHttpServerConfig` - Auto-detect transport type from URL if not specified +- CLI uses `"http"` for streamable-http, so map `"http"` → `"streamable-http"` when calling `argsToMcpServerConfig()` + +### 2.4 Implementation Details + +**Shared Package Setup:** -### 2.4 Status +1. Created `shared/package.json` as a workspace package (`@modelcontextprotocol/inspector-shared`) +2. Configured TypeScript with `composite: true` and `declaration: true` for Project References +3. Set React 19.2.3 as peer dependency (both client and TUI upgraded to React 19.2.3) +4. Added React and @types/react to devDependencies for TypeScript compilation +5. Added `shared` to root `workspaces` array +6. Updated root build script to build shared first: `"build-shared": "cd shared && npm run build"` -**Phase 2 is complete.** All MCP code has been moved to `shared/mcp/`, the React hook to `shared/react/`, and test fixtures to `shared/test/`. The `argsToMcpServerConfig()` function has been implemented. TUI successfully imports from and uses the shared code. +**Import Strategy:** + +- Workspaces import using package name: `@modelcontextprotocol/inspector-shared/mcp/types.js` +- No path mappings needed - npm workspaces resolve package name automatically +- TypeScript Project References ensure correct build ordering and type resolution + +**Build Process:** + +- Shared compiles to `shared/build/` with TypeScript declarations +- CLI and TUI reference shared via Project References +- Build order: `npm run build-shared` → `npm run build-cli` → `npm run build-tui` + +**React Version Alignment:** + +- Upgraded client from React 18.3.1 to React 19.2.3 (matching TUI) +- All Radix UI components support React 19 +- Single React 19.2.3 instance hoisted to root node_modules +- Shared code uses peer dependency pattern (consumers provide React) + +### 2.5 Status + +**Phase 2 is complete.** All MCP code has been moved to `shared/mcp/`, the React hook to `shared/react/`, and test fixtures to `shared/test/`. The `argsToMcpServerConfig()` function has been implemented. Shared is configured as a workspace package with TypeScript Project References. TUI and CLI successfully import from and use the shared code. React 19.2.3 is used consistently across all workspaces. ## File-by-File Migration Guide @@ -389,10 +453,10 @@ The CLI currently: ### 3.3 Migration Steps 1. **Update imports in `cli/src/index.ts`:** - - Import `InspectorClient` from `../../shared/mcp/index.js` - - Import `argsToMcpServerConfig` from `../../shared/mcp/index.js` - - Import `createTransportFromConfig` from `../../shared/mcp/index.js` - - Import `MCPServerConfig` type from `../../shared/mcp/index.js` + - Import `InspectorClient` from `@modelcontextprotocol/inspector-shared/mcp/index.js` + - Import `argsToMcpServerConfig` from `@modelcontextprotocol/inspector-shared/mcp/index.js` + - Import `createTransportFromConfig` from `@modelcontextprotocol/inspector-shared/mcp/index.js` + - Import `MCPServerConfig` type from `@modelcontextprotocol/inspector-shared/mcp/index.js` 2. **Replace transport creation:** - Remove `createTransportOptions()` function @@ -418,7 +482,7 @@ The CLI currently: - Ensure all CLI argument combinations are correctly converted 6. **Update tests:** - - Update CLI test imports to use `../../shared/test/` (already done in Phase 2) + - Update CLI test imports to use `@modelcontextprotocol/inspector-shared/test/` (already done in Phase 2) - Update tests to use `InspectorClient` instead of direct `Client` - Verify all test scenarios still pass @@ -473,7 +537,7 @@ await inspectorClient.disconnect(); ```json { - "workspaces": ["client", "server", "cli", "tui"], + "workspaces": ["client", "server", "cli", "tui", "shared"], "bin": { "mcp-inspector": "cli/build/cli.js" }, @@ -485,7 +549,8 @@ await inspectorClient.disconnect(); "tui/build" ], "scripts": { - "build": "npm run build-server && npm run build-client && npm run build-cli && npm run build-tui", + "build": "npm run build-shared && npm run build-server && npm run build-client && npm run build-cli && npm run build-tui", + "build-shared": "cd shared && npm run build", "build-tui": "cd tui && npm run build", "update-version": "node scripts/update-version.js", "check-version": "node scripts/check-version-consistency.js" @@ -493,6 +558,8 @@ await inspectorClient.disconnect(); } ``` +**Note**: `shared/` is a workspace package but is not included in `files` array (it's internal-only, not published). + **Note**: - TUI build artifacts (`tui/build`) are included in the `files` array for publishing, following the same approach as CLI @@ -530,7 +597,7 @@ await inspectorClient.disconnect(); } ``` -**Note**: TUI will have its own copy of React initially (different React versions for Ink vs web React). After v2 web UX lands and more code sharing begins, we may consider integrating React dependencies. +**Note**: TUI and client both use React 19.2.3. React is hoisted to root node_modules, ensuring a single React instance across all workspaces. Shared package declares React as a peer dependency. ### tui/tsconfig.json @@ -628,15 +695,22 @@ This provides a single entry point with consistent argument parsing across all t - [x] `test-fixtures.ts` → `shared/test/test-server-fixtures.ts` (renamed) - [x] `test-server-http.ts` → `shared/test/test-server-http.ts` - [x] `test-server-stdio.ts` → `shared/test/test-server-stdio.ts` -- [x] Update TUI imports to use `../../shared/mcp/` and `../../shared/react/` -- [x] Update CLI test imports to use `../../shared/test/` +- [x] Update TUI imports to use `@modelcontextprotocol/inspector-shared/mcp/` and `@modelcontextprotocol/inspector-shared/react/` +- [x] Create `shared/package.json` as workspace package +- [x] Configure `shared/tsconfig.json` with composite and declaration +- [x] Add shared to root workspaces +- [x] Set React 19.2.3 as peer dependency in shared +- [x] Upgrade client to React 19.2.3 +- [x] Configure TypeScript Project References in CLI and TUI +- [x] Update root build script to build shared first +- [x] Update CLI test imports to use `@modelcontextprotocol/inspector-shared/test/` - [x] Test TUI functionality (verify it still works with shared code) - [x] Test CLI tests (verify test fixtures work from new location) - [x] Update documentation ### Phase 3: Convert CLI to Use Shared Code -- [ ] Update CLI imports to use `InspectorClient`, `argsToMcpServerConfig`, `createTransportFromConfig` from `../../shared/mcp/` +- [ ] Update CLI imports to use `InspectorClient`, `argsToMcpServerConfig`, `createTransportFromConfig` from `@modelcontextprotocol/inspector-shared/mcp/` - [ ] Replace `createTransportOptions()` with `argsToMcpServerConfig()` in `cli/src/index.ts` - [ ] Replace `createTransport()` with `createTransportFromConfig()` - [ ] Replace `new Client()` + `connect()` with `new InspectorClient()` + `connect()` diff --git a/package-lock.json b/package-lock.json index 658551861..9e9f19236 100644 --- a/package-lock.json +++ b/package-lock.json @@ -12,7 +12,8 @@ "client", "server", "cli", - "tui" + "tui", + "shared" ], "dependencies": { "@modelcontextprotocol/inspector-cli": "^0.18.0", @@ -52,6 +53,7 @@ "version": "0.18.0", "license": "MIT", "dependencies": { + "@modelcontextprotocol/inspector-shared": "*", "@modelcontextprotocol/sdk": "^1.25.2", "commander": "^13.1.0", "express": "^5.2.1", @@ -68,8 +70,6 @@ }, "cli/node_modules/@types/express": { "version": "5.0.6", - "resolved": "https://registry.npmjs.org/@types/express/-/express-5.0.6.tgz", - "integrity": "sha512-sKYVuV7Sv9fbPIt/442koC7+IIwK5olP1KWeD88e/idgoJqDm3JV/YUiPwkoKK92ylff2MGxSz1CSjsXelx0YA==", "dev": true, "license": "MIT", "dependencies": { @@ -80,8 +80,6 @@ }, "cli/node_modules/@types/express-serve-static-core": { "version": "5.1.1", - "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-5.1.1.tgz", - "integrity": "sha512-v4zIMr/cX7/d2BpAEX3KNKL/JrT1s43s96lLvvdTmza1oEvDudCqK9aF/djc/SWgy8Yh0h30TZx5VpzqFCxk5A==", "dev": true, "license": "MIT", "dependencies": { @@ -93,8 +91,6 @@ }, "cli/node_modules/@types/serve-static": { "version": "2.2.0", - "resolved": "https://registry.npmjs.org/@types/serve-static/-/serve-static-2.2.0.tgz", - "integrity": "sha512-8mam4H1NHLtu7nmtalF7eyBH14QyOASmcxHhSfEoRyr0nP/YdoesEtU+uSRvMe96TW/HPTtkoKqQLl53N7UXMQ==", "dev": true, "license": "MIT", "dependencies": { @@ -104,8 +100,6 @@ }, "cli/node_modules/commander": { "version": "13.1.0", - "resolved": "https://registry.npmjs.org/commander/-/commander-13.1.0.tgz", - "integrity": "sha512-/rFeCpNJQbhSZjGVwO9RFV3xPqbnERS8MmIQzCtD/zl6gpJuV/bMLuN92oG3F7d8oDEHHRrujSXNUr8fpjntKw==", "license": "MIT", "engines": { "node": ">=18" @@ -135,8 +129,8 @@ "lucide-react": "^0.523.0", "pkce-challenge": "^4.1.0", "prismjs": "^1.30.0", - "react": "^18.3.1", - "react-dom": "^18.3.1", + "react": "^19.2.3", + "react-dom": "^19.2.3", "react-simple-code-editor": "^0.14.1", "serve-handler": "^6.1.6", "tailwind-merge": "^2.5.3", @@ -152,8 +146,8 @@ 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"https://registry.npmjs.org/ink/-/ink-6.6.0.tgz", - "integrity": "sha512-QDt6FgJxgmSxAelcOvOHUvFxbIUjVpCH5bx+Slvc5m7IEcpGt3dYwbz/L+oRnqEGeRvwy1tineKK4ect3nW1vQ==", - "license": "MIT", - "dependencies": { - "@alcalzone/ansi-tokenize": "^0.2.1", - "ansi-escapes": "^7.2.0", - "ansi-styles": "^6.2.1", - "auto-bind": "^5.0.1", - "chalk": "^5.6.0", - "cli-boxes": "^3.0.0", - "cli-cursor": "^4.0.0", - "cli-truncate": "^5.1.1", - "code-excerpt": "^4.0.0", - "es-toolkit": "^1.39.10", - "indent-string": "^5.0.0", - "is-in-ci": "^2.0.0", - "patch-console": "^2.0.0", - "react-reconciler": "^0.33.0", - "signal-exit": "^3.0.7", - "slice-ansi": "^7.1.0", - "stack-utils": "^2.0.6", - "string-width": "^8.1.0", - "type-fest": "^4.27.0", - "widest-line": "^5.0.0", - "wrap-ansi": "^9.0.0", - "ws": "^8.18.0", - "yoga-layout": "~3.2.1" - }, - "engines": { - "node": ">=20" - }, - "peerDependencies": { - "@types/react": ">=19.0.0", - "react": ">=19.0.0", - "react-devtools-core": "^6.1.2" - }, - "peerDependenciesMeta": { - "@types/react": { - "optional": true - }, - "react-devtools-core": { - "optional": true - } - } - }, "tui/node_modules/ink-form": { "version": "2.0.1", - "resolved": "https://registry.npmjs.org/ink-form/-/ink-form-2.0.1.tgz", - "integrity": "sha512-vo0VMwHf+HOOJo7026K4vJEN8xm4sP9iWlQLx4bngNEEY5K8t30CUvVjQCCNAV6Mt2ODt2Aq+2crCuBONReJUg==", "license": "MIT", "dependencies": { "ink-select-input": "^5.0.0", @@ -14242,8 +13636,6 @@ }, "tui/node_modules/ink-form/node_modules/ink-select-input": { "version": "5.0.0", - "resolved": "https://registry.npmjs.org/ink-select-input/-/ink-select-input-5.0.0.tgz", - "integrity": "sha512-VkLEogN3KTgAc0W/u9xK3+44x8JyKfmBvPQyvniJ/Hj0ftg9vWa/YecvZirevNv2SAvgoA2GIlTLCQouzgPKDg==", "license": "MIT", "dependencies": { "arr-rotate": "^1.0.0", @@ -14260,8 +13652,6 @@ }, "tui/node_modules/ink-scroll-view": { "version": "0.3.5", - "resolved": "https://registry.npmjs.org/ink-scroll-view/-/ink-scroll-view-0.3.5.tgz", - "integrity": "sha512-NDCKQz0DDvcLQEboXf25oGQ4g2VpoO3NojMC/eG+eaqEz9PDiGJyg7Y+HTa4QaCjogvME6A+IwGyV+yTLCGdaw==", "license": "MIT", "peerDependencies": { "ink": ">=6", @@ -14270,8 +13660,6 @@ }, "tui/node_modules/ink-text-input": { "version": "6.0.0", - "resolved": "https://registry.npmjs.org/ink-text-input/-/ink-text-input-6.0.0.tgz", - "integrity": "sha512-Fw64n7Yha5deb1rHY137zHTAbSTNelUKuB5Kkk2HACXEtwIHBCf9OH2tP/LQ9fRYTl1F0dZgbW0zPnZk6FA9Lw==", "license": "MIT", "dependencies": { "chalk": "^5.3.0", @@ -14285,56 +13673,8 @@ "react": ">=18" } }, - "tui/node_modules/react": { - "version": "19.2.3", - "resolved": "https://registry.npmjs.org/react/-/react-19.2.3.tgz", - "integrity": "sha512-Ku/hhYbVjOQnXDZFv2+RibmLFGwFdeeKHFcOTlrt7xplBnya5OGn/hIRDsqDiSUcfORsDC7MPxwork8jBwsIWA==", - "license": "MIT", - "engines": { - "node": ">=0.10.0" - } - }, - "tui/node_modules/react-reconciler": { - "version": "0.33.0", - "resolved": "https://registry.npmjs.org/react-reconciler/-/react-reconciler-0.33.0.tgz", - "integrity": "sha512-KetWRytFv1epdpJc3J4G75I4WrplZE5jOL7Yq0p34+OVOKF4Se7WrdIdVC45XsSSmUTlht2FM/fM1FZb1mfQeA==", - "license": "MIT", - "dependencies": { - "scheduler": "^0.27.0" - }, - "engines": { - "node": ">=0.10.0" - }, - "peerDependencies": { - "react": "^19.2.0" - } - }, - "tui/node_modules/restore-cursor": { - "version": "4.0.0", - "resolved": "https://registry.npmjs.org/restore-cursor/-/restore-cursor-4.0.0.tgz", - "integrity": "sha512-I9fPXU9geO9bHOt9pHHOhOkYerIMsmVaWB0rA2AI9ERh/+x/i7MV5HKBNrg+ljO5eoPVgCcnFuRjJ9uH6I/3eg==", - "license": "MIT", - "dependencies": { - "onetime": "^5.1.0", - "signal-exit": "^3.0.2" - }, - "engines": { - "node": "^12.20.0 || ^14.13.1 || >=16.0.0" - }, - "funding": { - "url": "https://github.com/sponsors/sindresorhus" - } - }, - "tui/node_modules/scheduler": { - "version": "0.27.0", - "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.27.0.tgz", - "integrity": "sha512-eNv+WrVbKu1f3vbYJT/xtiF5syA5HPIMtf9IgY/nKg0sWqzAUEvqY/xm7OcZc/qafLx/iO9FgOmeSAp4v5ti/Q==", - "license": "MIT" - }, "tui/node_modules/type-fest": { "version": "4.41.0", - "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-4.41.0.tgz", - "integrity": "sha512-TeTSQ6H5YHvpqVwBRcnLDCBnDOHWYu7IvGbHT6N8AOymcr9PJGjc1GTtiWZTYg0NCgYwvnYWEkVChQAr9bjfwA==", "license": "(MIT OR CC0-1.0)", "engines": { "node": ">=16" @@ -14345,8 +13685,6 @@ }, "tui/node_modules/undici-types": { "version": "7.16.0", - "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz", - "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==", "dev": true, "license": "MIT" } diff --git a/package.json b/package.json index 1eaecaedc..f59ae8def 100644 --- a/package.json +++ b/package.json @@ -21,10 +21,12 @@ "client", "server", "cli", - "tui" + "tui", + "shared" ], "scripts": { - "build": "npm run build-server && npm run build-client && npm run build-cli && npm run build-tui", + "build": "npm run build-shared && npm run build-server && npm run build-client && npm run build-cli && npm run build-tui", + "build-shared": "cd shared && npm run build", "build-server": "cd server && npm run build", "build-client": "cd client && npm run build", "build-cli": "cd cli && npm run build", diff --git a/shared/mcp/config.ts b/shared/mcp/config.ts index ac99a9714..84b5fcd7f 100644 --- a/shared/mcp/config.ts +++ b/shared/mcp/config.ts @@ -34,47 +34,86 @@ export function loadMcpServersConfig(configPath: string): MCPConfig { } /** - * Converts CLI arguments to MCPServerConfig format - * @param args - CLI arguments object + * Converts CLI arguments to MCPServerConfig format. + * Handles all CLI-specific logic including: + * - Detecting if target is a URL or command + * - Validating transport/URL combinations + * - Auto-detecting transport type from URL path + * - Converting CLI's "http" transport to "streamable-http" + * + * @param args - CLI arguments object with target (URL or command), transport, and headers * @returns MCPServerConfig suitable for creating an InspectorClient + * @throws Error if arguments are invalid (e.g., args with URLs, stdio with URLs, etc.) */ export function argsToMcpServerConfig(args: { - command?: string; - args?: string[]; - envArgs?: Record; - transport?: "stdio" | "sse" | "streamable-http"; - serverUrl?: string; + target: string[]; + transport?: "sse" | "stdio" | "http"; headers?: Record; + env?: Record; }): MCPServerConfig { - // If serverUrl is provided, it's an HTTP-based transport - if (args.serverUrl) { - const url = new URL(args.serverUrl); + if (args.target.length === 0) { + throw new Error( + "Target is required. Specify a URL or a command to execute.", + ); + } + + const [firstTarget, ...targetArgs] = args.target; + + if (!firstTarget) { + throw new Error("Target is required."); + } + + const isUrl = + firstTarget.startsWith("http://") || firstTarget.startsWith("https://"); + + // Validation: URLs cannot have additional arguments + if (isUrl && targetArgs.length > 0) { + throw new Error("Arguments cannot be passed to a URL-based MCP server."); + } + + // Validation: Transport/URL combinations + if (args.transport) { + if (!isUrl && args.transport !== "stdio") { + throw new Error("Only stdio transport can be used with local commands."); + } + if (isUrl && args.transport === "stdio") { + throw new Error("stdio transport cannot be used with URLs."); + } + } + + // Handle URL-based transports (SSE or streamable-http) + if (isUrl) { + const url = new URL(firstTarget); // Determine transport type - let transportType: "sse" | "streamableHttp"; + let transportType: "sse" | "streamable-http"; if (args.transport) { - // Map "streamable-http" to "streamableHttp" - if (args.transport === "streamable-http") { - transportType = "streamableHttp"; + // Convert CLI's "http" to "streamable-http" + if (args.transport === "http") { + transportType = "streamable-http"; } else if (args.transport === "sse") { transportType = "sse"; } else { - // Default to SSE for URLs if transport is not recognized + // Should not happen due to validation above, but default to SSE transportType = "sse"; } } else { // Auto-detect from URL path if (url.pathname.endsWith("/mcp")) { - transportType = "streamableHttp"; + transportType = "streamable-http"; + } else if (url.pathname.endsWith("/sse")) { + transportType = "sse"; } else { + // Default to SSE if path doesn't match known patterns transportType = "sse"; } } + // Create SSE or streamable-http config if (transportType === "sse") { const config: SseServerConfig = { type: "sse", - url: args.serverUrl, + url: firstTarget, }; if (args.headers) { config.headers = args.headers; @@ -82,8 +121,8 @@ export function argsToMcpServerConfig(args: { return config; } else { const config: StreamableHttpServerConfig = { - type: "streamableHttp", - url: args.serverUrl, + type: "streamable-http", + url: firstTarget, }; if (args.headers) { config.headers = args.headers; @@ -92,22 +131,18 @@ export function argsToMcpServerConfig(args: { } } - // Otherwise, it's a stdio transport - if (!args.command) { - throw new Error("Command is required for stdio transport"); - } - + // Handle stdio transport (command-based) const config: StdioServerConfig = { type: "stdio", - command: args.command, + command: firstTarget, }; - if (args.args && args.args.length > 0) { - config.args = args.args; + if (targetArgs.length > 0) { + config.args = targetArgs; } - if (args.envArgs && Object.keys(args.envArgs).length > 0) { - config.env = args.envArgs; + if (args.env && Object.keys(args.env).length > 0) { + config.env = args.env; } return config; diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index 1c3509418..ed4fcb129 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -91,16 +91,16 @@ export class InspectorClient extends EventEmitter { ) => { const messageId = message.id; // Find the matching request by message ID - const requestIndex = this.messages.findIndex( + const requestEntry = this.messages.find( (e) => e.direction === "request" && "id" in e.message && e.message.id === messageId, ); - if (requestIndex !== -1) { + if (requestEntry) { // Update the request entry with the response - this.updateMessageResponse(requestIndex, message); + this.updateMessageResponse(requestEntry, message); } else { // No matching request found, create orphaned response entry const entry: MessageEntry = { @@ -274,7 +274,7 @@ export class InspectorClient extends EventEmitter { } /** - * Get the server type (stdio, sse, or streamableHttp) + * Get the server type (stdio, sse, or streamable-http) */ getServerType(): ServerType { return getServerTypeFromConfig(this.transportConfig); @@ -399,17 +399,14 @@ export class InspectorClient extends EventEmitter { } private updateMessageResponse( - requestIndex: number, + requestEntry: MessageEntry, response: JSONRPCResultResponse | JSONRPCErrorResponse, ): void { - const requestEntry = this.messages[requestIndex]; const duration = Date.now() - requestEntry.timestamp.getTime(); - this.messages[requestIndex] = { - ...requestEntry, - response, - duration, - }; - this.emit("message", this.messages[requestIndex]); + // Update the entry in place (mutate the object directly) + requestEntry.response = response; + requestEntry.duration = duration; + this.emit("message", requestEntry); this.emit("messagesChange"); } diff --git a/shared/mcp/transport.ts b/shared/mcp/transport.ts index 57cb52ca0..93cd44612 100644 --- a/shared/mcp/transport.ts +++ b/shared/mcp/transport.ts @@ -10,14 +10,30 @@ import { SSEClientTransport } from "@modelcontextprotocol/sdk/client/sse.js"; import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"; import type { Transport } from "@modelcontextprotocol/sdk/shared/transport.js"; -export type ServerType = "stdio" | "sse" | "streamableHttp"; +export type ServerType = "stdio" | "sse" | "streamable-http"; export function getServerType(config: MCPServerConfig): ServerType { - if ("type" in config) { - if (config.type === "sse") return "sse"; - if (config.type === "streamableHttp") return "streamableHttp"; + // If type is not present, default to stdio + if (!("type" in config) || config.type === undefined) { + return "stdio"; } - return "stdio"; + + // If type is present, validate it matches one of the valid values + const type = config.type; + if (type === "stdio") { + return "stdio"; + } + if (type === "sse") { + return "sse"; + } + if (type === "streamable-http") { + return "streamable-http"; + } + + // If type is present but doesn't match any valid value, throw error + throw new Error( + `Invalid server type: ${type}. Valid types are: stdio, sse, streamable-http`, + ); } export interface CreateTransportOptions { @@ -92,7 +108,7 @@ export function createTransport( return { transport }; } else { - // streamableHttp + // streamable-http const httpConfig = config as StreamableHttpServerConfig; const url = new URL(httpConfig.url); diff --git a/shared/mcp/types.ts b/shared/mcp/types.ts index 0c3416ec6..dbb1ee488 100644 --- a/shared/mcp/types.ts +++ b/shared/mcp/types.ts @@ -18,7 +18,7 @@ export interface SseServerConfig { // StreamableHTTP transport config export interface StreamableHttpServerConfig { - type: "streamableHttp"; + type: "streamable-http"; url: string; headers?: Record; requestInit?: Record; diff --git a/shared/package.json b/shared/package.json new file mode 100644 index 000000000..e16775366 --- /dev/null +++ b/shared/package.json @@ -0,0 +1,22 @@ +{ + "name": "@modelcontextprotocol/inspector-shared", + "version": "0.18.0", + "private": true, + "type": "module", + "main": "./build/index.js", + "types": "./build/index.d.ts", + "files": [ + "build" + ], + "scripts": { + "build": "tsc" + }, + "peerDependencies": { + "react": "^19.2.3" + }, + "devDependencies": { + "@types/react": "^19.2.7", + "react": "^19.2.3", + "typescript": "^5.4.2" + } +} diff --git a/shared/tsconfig.json b/shared/tsconfig.json new file mode 100644 index 000000000..98147655f --- /dev/null +++ b/shared/tsconfig.json @@ -0,0 +1,21 @@ +{ + "compilerOptions": { + "target": "ES2022", + "module": "NodeNext", + "moduleResolution": "NodeNext", + "outDir": "./build", + "rootDir": ".", + "composite": true, + "declaration": true, + "declarationMap": true, + "sourceMap": true, + "strict": true, + "esModuleInterop": true, + "skipLibCheck": true, + "forceConsistentCasingInFileNames": true, + "resolveJsonModule": true, + "noUncheckedIndexedAccess": true + }, + "include": ["mcp/**/*.ts", "react/**/*.ts", "react/**/*.tsx"], + "exclude": ["node_modules", "build"] +} diff --git a/tui/package.json b/tui/package.json index 1c78f282b..c4a768a6b 100644 --- a/tui/package.json +++ b/tui/package.json @@ -19,9 +19,10 @@ ], "scripts": { "build": "tsc", - "dev": "NODE_PATH=./node_modules:$NODE_PATH tsx tui.tsx" + "dev": "NODE_PATH=../node_modules:./node_modules:$NODE_PATH tsx tui.tsx" }, "dependencies": { + "@modelcontextprotocol/inspector-shared": "*", "@modelcontextprotocol/sdk": "^1.25.2", "fullscreen-ink": "^0.1.0", "ink": "^6.6.0", diff --git a/tui/src/App.tsx b/tui/src/App.tsx index cf30939fb..c41b62961 100644 --- a/tui/src/App.tsx +++ b/tui/src/App.tsx @@ -3,10 +3,10 @@ import { Box, Text, useInput, useApp, type Key } from "ink"; import { readFileSync } from "fs"; import { fileURLToPath } from "url"; import { dirname, join } from "path"; -import type { MessageEntry } from "../../shared/mcp/index.js"; -import { loadMcpServersConfig } from "../../shared/mcp/index.js"; -import { InspectorClient } from "../../shared/mcp/index.js"; -import { useInspectorClient } from "../../shared/react/useInspectorClient.js"; +import type { MessageEntry } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; +import { loadMcpServersConfig } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; +import { InspectorClient } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; +import { useInspectorClient } from "@modelcontextprotocol/inspector-shared/react/useInspectorClient.js"; import { Tabs, type TabType, tabs as tabList } from "./components/Tabs.js"; import { InfoTab } from "./components/InfoTab.js"; import { ResourcesTab } from "./components/ResourcesTab.js"; diff --git a/tui/src/components/HistoryTab.tsx b/tui/src/components/HistoryTab.tsx index 73e449d6b..899eb1323 100644 --- a/tui/src/components/HistoryTab.tsx +++ b/tui/src/components/HistoryTab.tsx @@ -1,7 +1,7 @@ import React, { useState, useMemo, useEffect, useRef } from "react"; import { Box, Text, useInput, type Key } from "ink"; import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; -import type { MessageEntry } from "../../../shared/mcp/index.js"; +import type { MessageEntry } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; interface HistoryTabProps { serverName: string | null; diff --git a/tui/src/components/InfoTab.tsx b/tui/src/components/InfoTab.tsx index 7ebb6687f..381324643 100644 --- a/tui/src/components/InfoTab.tsx +++ b/tui/src/components/InfoTab.tsx @@ -4,7 +4,7 @@ import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; import type { MCPServerConfig, ServerState, -} from "../../../shared/mcp/index.js"; +} from "@modelcontextprotocol/inspector-shared/mcp/index.js"; interface InfoTabProps { serverName: string | null; @@ -131,7 +131,7 @@ export function InfoTab({ ) : ( <> - Type: streamableHttp + Type: streamable-http URL: {(serverConfig as any).url} {(serverConfig as any).headers && Object.keys((serverConfig as any).headers).length > diff --git a/tui/src/components/NotificationsTab.tsx b/tui/src/components/NotificationsTab.tsx index 03c86d1bb..f25de1b24 100644 --- a/tui/src/components/NotificationsTab.tsx +++ b/tui/src/components/NotificationsTab.tsx @@ -2,7 +2,7 @@ import React, { useEffect, useRef } from "react"; import { Box, Text, useInput, type Key } from "ink"; import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; -import type { StderrLogEntry } from "../../../shared/mcp/index.js"; +import type { StderrLogEntry } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; interface NotificationsTabProps { client: Client | null; diff --git a/tui/test-config.json b/tui/test-config.json new file mode 100644 index 000000000..0738f3328 --- /dev/null +++ b/tui/test-config.json @@ -0,0 +1 @@ +{ "servers": [] } diff --git a/tui/tsconfig.json b/tui/tsconfig.json index fe48e3092..c18f3bbb2 100644 --- a/tui/tsconfig.json +++ b/tui/tsconfig.json @@ -9,8 +9,10 @@ "skipLibCheck": true, "forceConsistentCasingInFileNames": true, "resolveJsonModule": true, - "outDir": "./build" + "outDir": "./build", + "rootDir": "." }, - "include": ["src/**/*", "tui.tsx", "../shared/**/*.ts", "../shared/**/*.tsx"], - "exclude": ["node_modules", "build"] + "include": ["src/**/*", "tui.tsx"], + "exclude": ["node_modules", "build"], + "references": [{ "path": "../shared" }] } From 3066e8ef482b28dec42ce5968590fc61db08e7c1 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Tue, 20 Jan 2026 00:07:13 -0800 Subject: [PATCH 17/44] Refactor CLI to utilize InspectorClient for MCP interactions, replacing direct Client usage. Removed transport-related code and updated logging level handling. Enhanced environment configuration management. Cleaned up unused imports and streamlined argument parsing. --- cli/src/client/connection.ts | 57 --------------- cli/src/client/index.ts | 1 - cli/src/index.ts | 125 ++++++++++++-------------------- cli/src/transport.ts | 95 ------------------------ shared/mcp/client.ts | 16 ---- shared/mcp/inspectorClient.ts | 77 ++++++++++++++++---- shared/package.json | 10 ++- shared/test/test-server-http.ts | 6 ++ 8 files changed, 126 insertions(+), 261 deletions(-) delete mode 100644 cli/src/client/connection.ts delete mode 100644 cli/src/transport.ts delete mode 100644 shared/mcp/client.ts diff --git a/cli/src/client/connection.ts b/cli/src/client/connection.ts deleted file mode 100644 index dcbe8e518..000000000 --- a/cli/src/client/connection.ts +++ /dev/null @@ -1,57 +0,0 @@ -import { Client } from "@modelcontextprotocol/sdk/client/index.js"; -import type { Transport } from "@modelcontextprotocol/sdk/shared/transport.js"; -import { McpResponse } from "./types.js"; - -export const validLogLevels = [ - "trace", - "debug", - "info", - "warn", - "error", -] as const; - -export type LogLevel = (typeof validLogLevels)[number]; - -export async function connect( - client: Client, - transport: Transport, -): Promise { - try { - await client.connect(transport); - - if (client.getServerCapabilities()?.logging) { - // default logging level is undefined in the spec, but the user of the - // inspector most likely wants debug. - await client.setLoggingLevel("debug"); - } - } catch (error) { - throw new Error( - `Failed to connect to MCP server: ${error instanceof Error ? error.message : String(error)}`, - ); - } -} - -export async function disconnect(transport: Transport): Promise { - try { - await transport.close(); - } catch (error) { - throw new Error( - `Failed to disconnect from MCP server: ${error instanceof Error ? error.message : String(error)}`, - ); - } -} - -// Set logging level -export async function setLoggingLevel( - client: Client, - level: LogLevel, -): Promise { - try { - const response = await client.setLoggingLevel(level as any); - return response; - } catch (error) { - throw new Error( - `Failed to set logging level: ${error instanceof Error ? error.message : String(error)}`, - ); - } -} diff --git a/cli/src/client/index.ts b/cli/src/client/index.ts index 095d716b2..56354ecaf 100644 --- a/cli/src/client/index.ts +++ b/cli/src/client/index.ts @@ -1,5 +1,4 @@ // Re-export everything from the client modules -export * from "./connection.js"; export * from "./prompts.js"; export * from "./resources.js"; export * from "./tools.js"; diff --git a/cli/src/index.ts b/cli/src/index.ts index 17d7160ff..0f3368c51 100644 --- a/cli/src/index.ts +++ b/cli/src/index.ts @@ -1,25 +1,18 @@ #!/usr/bin/env node import * as fs from "fs"; -import { Client } from "@modelcontextprotocol/sdk/client/index.js"; import { Command } from "commander"; import { callTool, - connect, - disconnect, getPrompt, listPrompts, listResources, listResourceTemplates, listTools, - LogLevel, McpResponse, readResource, - setLoggingLevel, - validLogLevels, } from "./client/index.js"; import { handleError } from "./error-handler.js"; -import { createTransport, TransportOptions } from "./transport.js"; import { awaitableLog } from "./utils/awaitable-log.js"; import type { MCPServerConfig, @@ -27,6 +20,12 @@ import type { SseServerConfig, StreamableHttpServerConfig, } from "@modelcontextprotocol/inspector-shared/mcp/types.js"; +import { InspectorClient } from "@modelcontextprotocol/inspector-shared/mcp/inspectorClient.js"; +import { + LoggingLevelSchema, + type LoggingLevel, +} from "@modelcontextprotocol/sdk/types.js"; +import { getDefaultEnvironment } from "@modelcontextprotocol/sdk/client/stdio.js"; // JSON value type for CLI arguments type JsonValue = @@ -38,13 +37,17 @@ type JsonValue = | JsonValue[] | { [key: string]: JsonValue }; +export const validLogLevels: LoggingLevel[] = Object.values( + LoggingLevelSchema.enum, +); + type Args = { target: string[]; method?: string; promptName?: string; promptArgs?: Record; uri?: string; - logLevel?: LogLevel; + logLevel?: LoggingLevel; toolName?: string; toolArg?: Record; toolMeta?: Record; @@ -148,61 +151,24 @@ function argsToMcpServerConfig(args: Args): MCPServerConfig { config.args = targetArgs; } - return config; -} + const processEnv: Record = {}; -function createTransportOptions( - target: string[], - transport?: "sse" | "stdio" | "http", - headers?: Record, -): TransportOptions { - if (target.length === 0) { - throw new Error( - "Target is required. Specify a URL or a command to execute.", - ); - } - - const [command, ...commandArgs] = target; - - if (!command) { - throw new Error("Command is required."); + for (const [key, value] of Object.entries(process.env)) { + if (value !== undefined) { + processEnv[key] = value; + } } - const isUrl = command.startsWith("http://") || command.startsWith("https://"); + const defaultEnv = getDefaultEnvironment(); - if (isUrl && commandArgs.length > 0) { - throw new Error("Arguments cannot be passed to a URL-based MCP server."); - } + const env: Record = { + ...defaultEnv, + ...processEnv, + }; - let transportType: "sse" | "stdio" | "http"; - if (transport) { - if (!isUrl && transport !== "stdio") { - throw new Error("Only stdio transport can be used with local commands."); - } - if (isUrl && transport === "stdio") { - throw new Error("stdio transport cannot be used with URLs."); - } - transportType = transport; - } else if (isUrl) { - const url = new URL(command); - if (url.pathname.endsWith("/mcp")) { - transportType = "http"; - } else if (url.pathname.endsWith("/sse")) { - transportType = "sse"; - } else { - transportType = "sse"; - } - } else { - transportType = "stdio"; - } + config.env = env; - return { - transportType, - command: isUrl ? undefined : command, - args: isUrl ? undefined : commandArgs, - url: isUrl ? command : undefined, - headers, - }; + return config; } async function callMethod(args: Args): Promise { @@ -215,27 +181,24 @@ async function callMethod(args: Args): Promise { }); packageJson = packageJsonData.default; - const transportOptions = createTransportOptions( - args.target, - args.transport, - args.headers, - ); - const transport = createTransport(transportOptions); - const [, name = packageJson.name] = packageJson.name.split("/"); const version = packageJson.version; const clientIdentity = { name, version }; - const client = new Client(clientIdentity); + const inspectorClient = new InspectorClient(argsToMcpServerConfig(args), { + clientIdentity, + autoFetchServerContents: false, // CLI doesn't need auto-fetching, it calls methods directly + initialLoggingLevel: "debug", // Set debug logging level for CLI + }); try { - await connect(client, transport); + await inspectorClient.connect(); let result: McpResponse; // Tools methods if (args.method === "tools/list") { - result = await listTools(client, args.metadata); + result = await listTools(inspectorClient.getClient(), args.metadata); } else if (args.method === "tools/call") { if (!args.toolName) { throw new Error( @@ -244,7 +207,7 @@ async function callMethod(args: Args): Promise { } result = await callTool( - client, + inspectorClient.getClient(), args.toolName, args.toolArg || {}, args.metadata, @@ -253,7 +216,7 @@ async function callMethod(args: Args): Promise { } // Resources methods else if (args.method === "resources/list") { - result = await listResources(client, args.metadata); + result = await listResources(inspectorClient.getClient(), args.metadata); } else if (args.method === "resources/read") { if (!args.uri) { throw new Error( @@ -261,13 +224,20 @@ async function callMethod(args: Args): Promise { ); } - result = await readResource(client, args.uri, args.metadata); + result = await readResource( + inspectorClient.getClient(), + args.uri, + args.metadata, + ); } else if (args.method === "resources/templates/list") { - result = await listResourceTemplates(client, args.metadata); + result = await listResourceTemplates( + inspectorClient.getClient(), + args.metadata, + ); } // Prompts methods else if (args.method === "prompts/list") { - result = await listPrompts(client, args.metadata); + result = await listPrompts(inspectorClient.getClient(), args.metadata); } else if (args.method === "prompts/get") { if (!args.promptName) { throw new Error( @@ -276,7 +246,7 @@ async function callMethod(args: Args): Promise { } result = await getPrompt( - client, + inspectorClient.getClient(), args.promptName, args.promptArgs || {}, args.metadata, @@ -290,7 +260,8 @@ async function callMethod(args: Args): Promise { ); } - result = await setLoggingLevel(client, args.logLevel); + await inspectorClient.getClient().setLoggingLevel(args.logLevel); + result = {}; } else { throw new Error( `Unsupported method: ${args.method}. Supported methods include: tools/list, tools/call, resources/list, resources/read, resources/templates/list, prompts/list, prompts/get, logging/setLevel`, @@ -300,7 +271,7 @@ async function callMethod(args: Args): Promise { await awaitableLog(JSON.stringify(result, null, 2)); } finally { try { - await disconnect(transport); + await inspectorClient.disconnect(); } catch (disconnectError) { throw disconnectError; } @@ -412,13 +383,13 @@ function parseArgs(): Args { "--log-level ", "Logging level (for logging/setLevel method)", (value: string) => { - if (!validLogLevels.includes(value as any)) { + if (!validLogLevels.includes(value as LoggingLevel)) { throw new Error( `Invalid log level: ${value}. Valid levels are: ${validLogLevels.join(", ")}`, ); } - return value as LogLevel; + return value as LoggingLevel; }, ) // diff --git a/cli/src/transport.ts b/cli/src/transport.ts deleted file mode 100644 index 84af393b9..000000000 --- a/cli/src/transport.ts +++ /dev/null @@ -1,95 +0,0 @@ -import { SSEClientTransport } from "@modelcontextprotocol/sdk/client/sse.js"; -import { - getDefaultEnvironment, - StdioClientTransport, -} from "@modelcontextprotocol/sdk/client/stdio.js"; -import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"; -import type { Transport } from "@modelcontextprotocol/sdk/shared/transport.js"; -import { findActualExecutable } from "spawn-rx"; - -export type TransportOptions = { - transportType: "sse" | "stdio" | "http"; - command?: string; - args?: string[]; - url?: string; - headers?: Record; -}; - -function createStdioTransport(options: TransportOptions): Transport { - let args: string[] = []; - - if (options.args !== undefined) { - args = options.args; - } - - const processEnv: Record = {}; - - for (const [key, value] of Object.entries(process.env)) { - if (value !== undefined) { - processEnv[key] = value; - } - } - - const defaultEnv = getDefaultEnvironment(); - - const env: Record = { - ...defaultEnv, - ...processEnv, - }; - - const { cmd: actualCommand, args: actualArgs } = findActualExecutable( - options.command ?? "", - args, - ); - - return new StdioClientTransport({ - command: actualCommand, - args: actualArgs, - env, - stderr: "pipe", - }); -} - -export function createTransport(options: TransportOptions): Transport { - const { transportType } = options; - - try { - if (transportType === "stdio") { - return createStdioTransport(options); - } - - // If not STDIO, then it must be either SSE or HTTP. - if (!options.url) { - throw new Error("URL must be provided for SSE or HTTP transport types."); - } - const url = new URL(options.url); - - if (transportType === "sse") { - const transportOptions = options.headers - ? { - requestInit: { - headers: options.headers, - }, - } - : undefined; - return new SSEClientTransport(url, transportOptions); - } - - if (transportType === "http") { - const transportOptions = options.headers - ? { - requestInit: { - headers: options.headers, - }, - } - : undefined; - return new StreamableHTTPClientTransport(url, transportOptions); - } - - throw new Error(`Unsupported transport type: ${transportType}`); - } catch (error) { - throw new Error( - `Failed to create transport: ${error instanceof Error ? error.message : String(error)}`, - ); - } -} diff --git a/shared/mcp/client.ts b/shared/mcp/client.ts deleted file mode 100644 index bdbae34e2..000000000 --- a/shared/mcp/client.ts +++ /dev/null @@ -1,16 +0,0 @@ -import { Client } from "@modelcontextprotocol/sdk/client/index.js"; - -/** - * Creates a new MCP client with standard configuration - */ -export function createClient(): Client { - return new Client( - { - name: "mcp-inspect", - version: "1.0.5", - }, - { - capabilities: {}, - }, - ); -} diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index ed4fcb129..ab95fa68d 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -11,7 +11,6 @@ import { getServerType as getServerTypeFromConfig, type ServerType, } from "./transport.js"; -import { createClient } from "./client.js"; import { MessageTrackingTransport, type MessageTrackingCallbacks, @@ -23,10 +22,18 @@ import type { JSONRPCErrorResponse, ServerCapabilities, Implementation, + LoggingLevel, } from "@modelcontextprotocol/sdk/types.js"; import { EventEmitter } from "events"; export interface InspectorClientOptions { + /** + * Client identity (name and version) + */ + clientIdentity?: { + name: string; + version: string; + }; /** * Maximum number of messages to store (0 = unlimited, but not recommended) */ @@ -41,6 +48,18 @@ export interface InspectorClientOptions { * Whether to pipe stderr for stdio transports (default: true for TUI, false for CLI) */ pipeStderr?: boolean; + + /** + * Whether to automatically fetch server contents (tools, resources, prompts) on connect + * (default: true for backward compatibility with TUI) + */ + autoFetchServerContents?: boolean; + + /** + * Initial logging level to set after connection (if server supports logging) + * If not provided, logging level will not be set automatically + */ + initialLoggingLevel?: LoggingLevel; } /** @@ -58,6 +77,8 @@ export class InspectorClient extends EventEmitter { private stderrLogs: StderrLogEntry[] = []; private maxMessages: number; private maxStderrLogEvents: number; + private autoFetchServerContents: boolean; + private initialLoggingLevel?: LoggingLevel; private status: ConnectionStatus = "disconnected"; // Server data private tools: any[] = []; @@ -74,6 +95,8 @@ export class InspectorClient extends EventEmitter { super(); this.maxMessages = options.maxMessages ?? 1000; this.maxStderrLogEvents = options.maxStderrLogEvents ?? 1000; + this.autoFetchServerContents = options.autoFetchServerContents ?? true; + this.initialLoggingLevel = options.initialLoggingLevel; // Set up message tracking callbacks const messageTracking: MessageTrackingCallbacks = { @@ -160,7 +183,12 @@ export class InspectorClient extends EventEmitter { this.emit("error", error); }; - this.client = createClient(); + this.client = new Client( + options.clientIdentity ?? { + name: "@modelcontextprotocol/inspector", + version: "0.18.0", + }, + ); } /** @@ -190,8 +218,18 @@ export class InspectorClient extends EventEmitter { this.emit("statusChange", this.status); this.emit("connect"); - // Auto-fetch server data on connect - await this.fetchServerData(); + // Always fetch server info (capabilities, serverInfo, instructions) - this is just cached data from initialize + await this.fetchServerInfo(); + + // Set initial logging level if configured and server supports it + if (this.initialLoggingLevel && this.capabilities?.logging) { + await this.client.setLoggingLevel(this.initialLoggingLevel); + } + + // Auto-fetch server contents (tools, resources, prompts) if enabled + if (this.autoFetchServerContents) { + await this.fetchServerContents(); + } } catch (error) { this.status = "error"; this.emit("statusChange", this.status); @@ -323,28 +361,43 @@ export class InspectorClient extends EventEmitter { } /** - * Fetch server data (capabilities, tools, resources, prompts, serverInfo, instructions) - * Called automatically on connect, but can be called manually if needed. - * TODO: Add support for listChanged notifications to auto-refresh when server data changes + * Fetch server info (capabilities, serverInfo, instructions) from cached initialize response + * This does not send any additional MCP requests - it just reads cached data + * Always called on connect */ - private async fetchServerData(): Promise { + private async fetchServerInfo(): Promise { if (!this.client) { return; } try { - // Get server capabilities + // Get server capabilities (cached from initialize response) this.capabilities = this.client.getServerCapabilities(); this.emit("capabilitiesChange", this.capabilities); - // Get server info (name, version) and instructions + // Get server info (name, version) and instructions (cached from initialize response) this.serverInfo = this.client.getServerVersion(); this.instructions = this.client.getInstructions(); this.emit("serverInfoChange", this.serverInfo); if (this.instructions !== undefined) { this.emit("instructionsChange", this.instructions); } + } catch (error) { + // Ignore errors in fetching server info + } + } + /** + * Fetch server contents (tools, resources, prompts) by sending MCP requests + * This is only called when autoFetchServerContents is enabled + * TODO: Add support for listChanged notifications to auto-refresh when server data changes + */ + private async fetchServerContents(): Promise { + if (!this.client) { + return; + } + + try { // Query resources, prompts, and tools based on capabilities if (this.capabilities?.resources) { try { @@ -382,9 +435,7 @@ export class InspectorClient extends EventEmitter { } } } catch (error) { - // If fetching fails, we still consider the connection successful - // but log the error - this.emit("error", error); + // Ignore errors in fetching server contents } } diff --git a/shared/package.json b/shared/package.json index e16775366..c6a84212c 100644 --- a/shared/package.json +++ b/shared/package.json @@ -3,8 +3,14 @@ "version": "0.18.0", "private": true, "type": "module", - "main": "./build/index.js", - "types": "./build/index.d.ts", + "main": "./build/mcp/index.js", + "types": "./build/mcp/index.d.ts", + "exports": { + ".": "./build/mcp/index.js", + "./mcp/*": "./build/mcp/*", + "./react/*": "./build/react/*", + "./test/*": "./build/test/*" + }, "files": [ "build" ], diff --git a/shared/test/test-server-http.ts b/shared/test/test-server-http.ts index 13284d352..5c42cc4b1 100644 --- a/shared/test/test-server-http.ts +++ b/shared/test/test-server-http.ts @@ -234,6 +234,12 @@ export class TestServerHttp { } }); + // Handle GET requests for SSE stream - return 405 to indicate SSE is not supported + // The StreamableHTTPClientTransport will treat 405 as acceptable and continue without SSE + app.get("/mcp", (req: Request, res: Response) => { + res.status(405).send("Method Not Allowed"); + }); + // Intercept messages to record them const originalOnMessage = this.transport.onmessage; this.transport.onmessage = async (message) => { From 72bb0713044b4c67f306243ca1154ce4c0931fa8 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Tue, 20 Jan 2026 11:13:00 -0800 Subject: [PATCH 18/44] Refactor CLI to fully utilize InspectorClient methods for all MCP operations, consolidating client logic and removing deprecated client utility files. Updated argument parsing and logging configurations, ensuring consistent behavior across CLI and TUI. Enhanced documentation to reflect changes in architecture and functionality. --- cli/src/client/index.ts | 5 - cli/src/client/prompts.ts | 70 ------- cli/src/client/resources.ts | 56 ------ cli/src/client/tools.ts | 140 -------------- cli/src/client/types.ts | 1 - cli/src/index.ts | 48 ++--- docs/tui-integration-design.md | 272 ++++++++++++++++----------- shared/json/jsonUtils.ts | 101 ++++++++++ shared/mcp/index.ts | 8 + shared/mcp/inspectorClient.ts | 244 ++++++++++++++++++++++++ shared/package.json | 3 +- shared/tsconfig.json | 2 +- tui/src/App.tsx | 10 +- tui/src/components/ToolTestModal.tsx | 26 +-- 14 files changed, 548 insertions(+), 438 deletions(-) delete mode 100644 cli/src/client/index.ts delete mode 100644 cli/src/client/prompts.ts delete mode 100644 cli/src/client/resources.ts delete mode 100644 cli/src/client/tools.ts delete mode 100644 cli/src/client/types.ts create mode 100644 shared/json/jsonUtils.ts diff --git a/cli/src/client/index.ts b/cli/src/client/index.ts deleted file mode 100644 index 56354ecaf..000000000 --- a/cli/src/client/index.ts +++ /dev/null @@ -1,5 +0,0 @@ -// Re-export everything from the client modules -export * from "./prompts.js"; -export * from "./resources.js"; -export * from "./tools.js"; -export * from "./types.js"; diff --git a/cli/src/client/prompts.ts b/cli/src/client/prompts.ts deleted file mode 100644 index e7a1cf2f2..000000000 --- a/cli/src/client/prompts.ts +++ /dev/null @@ -1,70 +0,0 @@ -import { Client } from "@modelcontextprotocol/sdk/client/index.js"; -import { McpResponse } from "./types.js"; - -// JSON value type matching the client utils -type JsonValue = - | string - | number - | boolean - | null - | undefined - | JsonValue[] - | { [key: string]: JsonValue }; - -// List available prompts -export async function listPrompts( - client: Client, - metadata?: Record, -): Promise { - try { - const params = - metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; - const response = await client.listPrompts(params); - return response; - } catch (error) { - throw new Error( - `Failed to list prompts: ${error instanceof Error ? error.message : String(error)}`, - ); - } -} - -// Get a prompt -export async function getPrompt( - client: Client, - name: string, - args?: Record, - metadata?: Record, -): Promise { - try { - // Convert all arguments to strings for prompt arguments - const stringArgs: Record = {}; - if (args) { - for (const [key, value] of Object.entries(args)) { - if (typeof value === "string") { - stringArgs[key] = value; - } else if (value === null || value === undefined) { - stringArgs[key] = String(value); - } else { - stringArgs[key] = JSON.stringify(value); - } - } - } - - const params: any = { - name, - arguments: stringArgs, - }; - - if (metadata && Object.keys(metadata).length > 0) { - params._meta = metadata; - } - - const response = await client.getPrompt(params); - - return response; - } catch (error) { - throw new Error( - `Failed to get prompt: ${error instanceof Error ? error.message : String(error)}`, - ); - } -} diff --git a/cli/src/client/resources.ts b/cli/src/client/resources.ts deleted file mode 100644 index 3e44820ca..000000000 --- a/cli/src/client/resources.ts +++ /dev/null @@ -1,56 +0,0 @@ -import { Client } from "@modelcontextprotocol/sdk/client/index.js"; -import { McpResponse } from "./types.js"; - -// List available resources -export async function listResources( - client: Client, - metadata?: Record, -): Promise { - try { - const params = - metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; - const response = await client.listResources(params); - return response; - } catch (error) { - throw new Error( - `Failed to list resources: ${error instanceof Error ? error.message : String(error)}`, - ); - } -} - -// Read a resource -export async function readResource( - client: Client, - uri: string, - metadata?: Record, -): Promise { - try { - const params: any = { uri }; - if (metadata && Object.keys(metadata).length > 0) { - params._meta = metadata; - } - const response = await client.readResource(params); - return response; - } catch (error) { - throw new Error( - `Failed to read resource ${uri}: ${error instanceof Error ? error.message : String(error)}`, - ); - } -} - -// List resource templates -export async function listResourceTemplates( - client: Client, - metadata?: Record, -): Promise { - try { - const params = - metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; - const response = await client.listResourceTemplates(params); - return response; - } catch (error) { - throw new Error( - `Failed to list resource templates: ${error instanceof Error ? error.message : String(error)}`, - ); - } -} diff --git a/cli/src/client/tools.ts b/cli/src/client/tools.ts deleted file mode 100644 index 516814115..000000000 --- a/cli/src/client/tools.ts +++ /dev/null @@ -1,140 +0,0 @@ -import { Client } from "@modelcontextprotocol/sdk/client/index.js"; -import { Tool } from "@modelcontextprotocol/sdk/types.js"; -import { McpResponse } from "./types.js"; - -// JSON value type matching the client utils -type JsonValue = - | string - | number - | boolean - | null - | undefined - | JsonValue[] - | { [key: string]: JsonValue }; - -type JsonSchemaType = { - type: "string" | "number" | "integer" | "boolean" | "array" | "object"; - description?: string; - properties?: Record; - items?: JsonSchemaType; -}; - -export async function listTools( - client: Client, - metadata?: Record, -): Promise { - try { - const params = - metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; - const response = await client.listTools(params); - return response; - } catch (error) { - throw new Error( - `Failed to list tools: ${error instanceof Error ? error.message : String(error)}`, - ); - } -} - -function convertParameterValue( - value: string, - schema: JsonSchemaType, -): JsonValue { - if (!value) { - return value; - } - - if (schema.type === "number" || schema.type === "integer") { - return Number(value); - } - - if (schema.type === "boolean") { - return value.toLowerCase() === "true"; - } - - if (schema.type === "object" || schema.type === "array") { - try { - return JSON.parse(value) as JsonValue; - } catch (error) { - return value; - } - } - - return value; -} - -function convertParameters( - tool: Tool, - params: Record, -): Record { - const result: Record = {}; - const properties = tool.inputSchema.properties || {}; - - for (const [key, value] of Object.entries(params)) { - const paramSchema = properties[key] as JsonSchemaType | undefined; - - if (paramSchema) { - result[key] = convertParameterValue(value, paramSchema); - } else { - // If no schema is found for this parameter, keep it as string - result[key] = value; - } - } - - return result; -} - -export async function callTool( - client: Client, - name: string, - args: Record, - generalMetadata?: Record, - toolSpecificMetadata?: Record, -): Promise { - try { - const toolsResponse = await listTools(client, generalMetadata); - const tools = toolsResponse.tools as Tool[]; - const tool = tools.find((t) => t.name === name); - - let convertedArgs: Record = args; - - if (tool) { - // Convert parameters based on the tool's schema, but only for string values - // since we now accept pre-parsed values from the CLI - const stringArgs: Record = {}; - for (const [key, value] of Object.entries(args)) { - if (typeof value === "string") { - stringArgs[key] = value; - } - } - - if (Object.keys(stringArgs).length > 0) { - const convertedStringArgs = convertParameters(tool, stringArgs); - convertedArgs = { ...args, ...convertedStringArgs }; - } - } - - // Merge general metadata with tool-specific metadata - // Tool-specific metadata takes precedence over general metadata - let mergedMetadata: Record | undefined; - if (generalMetadata || toolSpecificMetadata) { - mergedMetadata = { - ...(generalMetadata || {}), - ...(toolSpecificMetadata || {}), - }; - } - - const response = await client.callTool({ - name: name, - arguments: convertedArgs, - _meta: - mergedMetadata && Object.keys(mergedMetadata).length > 0 - ? mergedMetadata - : undefined, - }); - return response; - } catch (error) { - throw new Error( - `Failed to call tool ${name}: ${error instanceof Error ? error.message : String(error)}`, - ); - } -} diff --git a/cli/src/client/types.ts b/cli/src/client/types.ts deleted file mode 100644 index bbbe1bf4f..000000000 --- a/cli/src/client/types.ts +++ /dev/null @@ -1 +0,0 @@ -export type McpResponse = Record; diff --git a/cli/src/index.ts b/cli/src/index.ts index 0f3368c51..db41cb0c9 100644 --- a/cli/src/index.ts +++ b/cli/src/index.ts @@ -2,16 +2,8 @@ import * as fs from "fs"; import { Command } from "commander"; -import { - callTool, - getPrompt, - listPrompts, - listResources, - listResourceTemplates, - listTools, - McpResponse, - readResource, -} from "./client/index.js"; +// CLI helper functions moved to InspectorClient methods +type McpResponse = Record; import { handleError } from "./error-handler.js"; import { awaitableLog } from "./utils/awaitable-log.js"; import type { @@ -21,22 +13,13 @@ import type { StreamableHttpServerConfig, } from "@modelcontextprotocol/inspector-shared/mcp/types.js"; import { InspectorClient } from "@modelcontextprotocol/inspector-shared/mcp/inspectorClient.js"; +import type { JsonValue } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; import { LoggingLevelSchema, type LoggingLevel, } from "@modelcontextprotocol/sdk/types.js"; import { getDefaultEnvironment } from "@modelcontextprotocol/sdk/client/stdio.js"; -// JSON value type for CLI arguments -type JsonValue = - | string - | number - | boolean - | null - | undefined - | JsonValue[] - | { [key: string]: JsonValue }; - export const validLogLevels: LoggingLevel[] = Object.values( LoggingLevelSchema.enum, ); @@ -198,7 +181,7 @@ async function callMethod(args: Args): Promise { // Tools methods if (args.method === "tools/list") { - result = await listTools(inspectorClient.getClient(), args.metadata); + result = await inspectorClient.listTools(args.metadata); } else if (args.method === "tools/call") { if (!args.toolName) { throw new Error( @@ -206,8 +189,7 @@ async function callMethod(args: Args): Promise { ); } - result = await callTool( - inspectorClient.getClient(), + result = await inspectorClient.callTool( args.toolName, args.toolArg || {}, args.metadata, @@ -216,7 +198,7 @@ async function callMethod(args: Args): Promise { } // Resources methods else if (args.method === "resources/list") { - result = await listResources(inspectorClient.getClient(), args.metadata); + result = await inspectorClient.listResources(args.metadata); } else if (args.method === "resources/read") { if (!args.uri) { throw new Error( @@ -224,20 +206,13 @@ async function callMethod(args: Args): Promise { ); } - result = await readResource( - inspectorClient.getClient(), - args.uri, - args.metadata, - ); + result = await inspectorClient.readResource(args.uri, args.metadata); } else if (args.method === "resources/templates/list") { - result = await listResourceTemplates( - inspectorClient.getClient(), - args.metadata, - ); + result = await inspectorClient.listResourceTemplates(args.metadata); } // Prompts methods else if (args.method === "prompts/list") { - result = await listPrompts(inspectorClient.getClient(), args.metadata); + result = await inspectorClient.listPrompts(args.metadata); } else if (args.method === "prompts/get") { if (!args.promptName) { throw new Error( @@ -245,8 +220,7 @@ async function callMethod(args: Args): Promise { ); } - result = await getPrompt( - inspectorClient.getClient(), + result = await inspectorClient.getPrompt( args.promptName, args.promptArgs || {}, args.metadata, @@ -260,7 +234,7 @@ async function callMethod(args: Args): Promise { ); } - await inspectorClient.getClient().setLoggingLevel(args.logLevel); + await inspectorClient.setLoggingLevel(args.logLevel); result = {}; } else { throw new Error( diff --git a/docs/tui-integration-design.md b/docs/tui-integration-design.md index 706075eca..f7042b69f 100644 --- a/docs/tui-integration-design.md +++ b/docs/tui-integration-design.md @@ -14,7 +14,7 @@ Our goal is to integrate the TUI into the MCP Inspector project, making it a fir 1. **Phase 1**: Integrate TUI as a standalone runnable workspace (no code sharing) ✅ COMPLETE 2. **Phase 2**: Extract MCP module to shared directory (move TUI's MCP code to `shared/` for reuse) ✅ COMPLETE -3. **Phase 3**: Convert CLI to use shared code (replace CLI's direct SDK usage with `InspectorClient` from `shared/`) +3. **Phase 3**: Convert CLI to use shared code (replace CLI's direct SDK usage with `InspectorClient` from `shared/`) ✅ COMPLETE **Note**: These three phases represent development staging to break down the work into manageable steps. The first release (PR) will be submitted at the completion of Phase 3, after all code sharing and organization is complete. @@ -58,9 +58,8 @@ inspector/ ├── cli/ # CLI workspace │ ├── src/ │ │ ├── cli.ts # Launcher (spawns web client, CLI, or TUI) -│ │ ├── index.ts # CLI implementation (Phase 3: uses shared/mcp/) -│ │ ├── transport.ts # Phase 3: deprecated (use shared/mcp/transport.ts) -│ │ └── client/ # MCP client utilities (Phase 3: deprecated, use InspectorClient) +│ │ ├── index.ts # CLI implementation (Phase 3: uses InspectorClient methods) +│ │ └── transport.ts # Phase 3: deprecated (use shared/mcp/transport.ts) │ ├── __tests__/ │ │ └── helpers/ # Phase 2: test fixtures moved to shared/test/, Phase 3: imports from shared/test/ │ └── package.json @@ -75,12 +74,14 @@ inspector/ │ ├── tsconfig.json # TypeScript config with composite: true │ ├── mcp/ # MCP client/server interaction code │ │ ├── index.ts # Public API exports -│ │ ├── inspectorClient.ts # Main InspectorClient class +│ │ ├── inspectorClient.ts # Main InspectorClient class (with MCP method wrappers) │ │ ├── transport.ts # Transport creation from MCPServerConfig │ │ ├── config.ts # Config loading and argument conversion │ │ ├── types.ts # Shared types │ │ ├── messageTrackingTransport.ts │ │ └── client.ts +│ ├── json/ # JSON utilities (Phase 3) +│ │ └── jsonUtils.ts # JsonValue type and conversion utilities │ ├── react/ # React-specific utilities │ │ └── useInspectorClient.ts # React hook for InspectorClient │ └── test/ # Test fixtures and harness servers @@ -209,12 +210,25 @@ The project now includes `InspectorClient` (`shared/mcp/inspectorClient.ts`), a - **Server Data Management**: Automatically fetches and caches tools, resources, prompts, capabilities, server info, and instructions - **State Management**: Manages connection status, message history, and server state - **Transport Abstraction**: Works with all transport types (stdio, sse, streamable-http) +- **MCP Method Wrappers**: Provides high-level methods for tools, resources, prompts, and logging: + - `listTools()`, `callTool()` - Tool operations with automatic parameter conversion + - `listResources()`, `readResource()`, `listResourceTemplates()` - Resource operations + - `listPrompts()`, `getPrompt()` - Prompt operations with automatic argument stringification + - `setLoggingLevel()` - Logging level management with capability checks +- **Configurable Options**: + - `autoFetchServerContents`: Controls whether to auto-fetch tools/resources/prompts on connect (default: `true` for TUI, `false` for CLI) + - `initialLoggingLevel`: Sets the logging level on connect if server supports logging (optional) + - `maxMessages`: Maximum number of messages to store (default: 1000) + - `maxStderrLogEvents`: Maximum number of stderr log entries to store (default: 1000) + - `pipeStderr`: Whether to pipe stderr for stdio transports (default: `true` for TUI, `false` for CLI) -### Shared MCP Module Structure (Phase 2 Complete) +### Shared Module Structure (Phase 2 Complete) -The MCP-related code has been moved to `shared/mcp/` and is used by both TUI and CLI: +The shared codebase includes MCP, React, JSON utilities, and test fixtures: -- `inspectorClient.ts` - Main `InspectorClient` class +**`shared/mcp/`** - MCP client/server interaction: + +- `inspectorClient.ts` - Main `InspectorClient` class with MCP method wrappers - `transport.ts` - Transport creation from `MCPServerConfig` - `config.ts` - Config file loading (`loadMcpServersConfig`) and argument conversion (`argsToMcpServerConfig`) - `types.ts` - Shared types (`MCPServerConfig`, `MessageEntry`, `ConnectionStatus`, etc.) @@ -222,6 +236,20 @@ The MCP-related code has been moved to `shared/mcp/` and is used by both TUI and - `client.ts` - Thin wrapper around SDK `Client` creation - `index.ts` - Public API exports +**`shared/json/`** - JSON utilities: + +- `jsonUtils.ts` - JSON value types and conversion utilities (`JsonValue`, `convertParameterValue`, `convertToolParameters`, `convertPromptArguments`) + +**`shared/react/`** - React-specific utilities: + +- `useInspectorClient.ts` - React hook for `InspectorClient` + +**`shared/test/`** - Test fixtures and harness servers: + +- `test-server-fixtures.ts` - Shared server configs and definitions +- `test-server-http.ts` - HTTP/SSE test server +- `test-server-stdio.ts` - Stdio test server + ### Benefits of InspectorClient 1. **Unified Client Interface**: Single class handles all client operations @@ -230,6 +258,8 @@ The MCP-related code has been moved to `shared/mcp/` and is used by both TUI and 4. **Message History**: Built-in request/response/notification tracking 5. **Stderr Capture**: Automatic logging for stdio transports 6. **Type Safety**: Uses SDK types directly, no data loss +7. **High-Level Methods**: Provides convenient wrappers for tools, resources, prompts, and logging with automatic parameter conversion and error handling +8. **Code Reuse**: CLI and TUI both use the same `InspectorClient` methods, eliminating duplicate helper code ## Phase 2: Extract MCP Module to Shared Directory ✅ COMPLETE @@ -386,30 +416,32 @@ export function argsToMcpServerConfig(args: { ### Code Sharing Strategy -| Current Location | Phase 2 Status | Phase 3 Action | Notes | -| -------------------------------------------- | ----------------------------------------------------------------- | -------------------------------------------------- | -------------------------------------------------------- | -| `tui/src/mcp/inspectorClient.ts` | ✅ Moved to `shared/mcp/inspectorClient.ts` | CLI imports and uses | Main client wrapper, replaces CLI wrapper functions | -| `tui/src/mcp/transport.ts` | ✅ Moved to `shared/mcp/transport.ts` | CLI imports and uses | Transport creation from MCPServerConfig | -| `tui/src/mcp/config.ts` | ✅ Moved to `shared/mcp/config.ts` (with `argsToMcpServerConfig`) | CLI imports and uses | Config loading and argument conversion | -| `tui/src/mcp/types.ts` | ✅ Moved to `shared/mcp/types.ts` | CLI imports and uses | Shared types (MCPServerConfig, MessageEntry, etc.) | -| `tui/src/mcp/messageTrackingTransport.ts` | ✅ Moved to `shared/mcp/messageTrackingTransport.ts` | CLI imports (if needed) | Transport wrapper for message tracking | -| `tui/src/hooks/useInspectorClient.ts` | ✅ Moved to `shared/react/useInspectorClient.ts` | TUI imports from shared | React hook for InspectorClient | -| `cli/src/transport.ts` | Keep (temporary) | **Deprecated** (use `shared/mcp/transport.ts`) | Replaced by `shared/mcp/transport.ts` | -| `cli/src/client/connection.ts` | Keep (temporary) | **Deprecated** (use `InspectorClient`) | Replaced by `InspectorClient` | -| `cli/src/client/tools.ts` | Keep (temporary) | **Deprecated** (use `InspectorClient.getClient()`) | Use SDK methods directly via `InspectorClient` | -| `cli/src/client/resources.ts` | Keep (temporary) | **Deprecated** (use `InspectorClient.getClient()`) | Use SDK methods directly via `InspectorClient` | -| `cli/src/client/prompts.ts` | Keep (temporary) | **Deprecated** (use `InspectorClient.getClient()`) | Use SDK methods directly via `InspectorClient` | -| `cli/src/client/types.ts` | Keep (temporary) | **Deprecated** (use SDK types) | Use SDK types directly | -| `cli/src/index.ts::parseArgs()` | Keep CLI-specific | Keep CLI-specific | CLI-only argument parsing | -| `cli/__tests__/helpers/test-fixtures.ts` | ✅ Moved to `shared/test/test-server-fixtures.ts` (renamed) | CLI tests import from shared | Shared test server configs and definitions | -| `cli/__tests__/helpers/test-server-http.ts` | ✅ Moved to `shared/test/test-server-http.ts` | CLI tests import from shared | Shared test harness | -| `cli/__tests__/helpers/test-server-stdio.ts` | ✅ Moved to `shared/test/test-server-stdio.ts` | CLI tests import from shared | Shared test harness | -| `cli/__tests__/helpers/fixtures.ts` | Keep in CLI tests | Keep in CLI tests | CLI-specific test utilities (config file creation, etc.) | - -## Phase 3: Convert CLI to Use Shared Code +| Current Location | Phase 2 Status | Phase 3 Action | Notes | +| -------------------------------------------- | ------------------------------------------------------------------------------------------ | ---------------------------------------------- | -------------------------------------------------------- | +| `tui/src/mcp/inspectorClient.ts` | ✅ Moved to `shared/mcp/inspectorClient.ts` | CLI imports and uses | Main client wrapper, replaces CLI wrapper functions | +| `tui/src/mcp/transport.ts` | ✅ Moved to `shared/mcp/transport.ts` | CLI imports and uses | Transport creation from MCPServerConfig | +| `tui/src/mcp/config.ts` | ✅ Moved to `shared/mcp/config.ts` (with `argsToMcpServerConfig`) | CLI imports and uses | Config loading and argument conversion | +| `tui/src/mcp/types.ts` | ✅ Moved to `shared/mcp/types.ts` | CLI imports and uses | Shared types (MCPServerConfig, MessageEntry, etc.) | +| `tui/src/mcp/messageTrackingTransport.ts` | ✅ Moved to `shared/mcp/messageTrackingTransport.ts` | CLI imports (if needed) | Transport wrapper for message tracking | +| `tui/src/hooks/useInspectorClient.ts` | ✅ Moved to `shared/react/useInspectorClient.ts` | TUI imports from shared | React hook for InspectorClient | +| `cli/src/transport.ts` | Keep (temporary) | **Deprecated** (use `shared/mcp/transport.ts`) | Replaced by `shared/mcp/transport.ts` | +| `cli/src/client/connection.ts` | Keep (temporary) | **Deprecated** (use `InspectorClient`) | Replaced by `InspectorClient` | +| `cli/src/client/tools.ts` | ✅ Moved to `InspectorClient.listTools()`, `callTool()` | **Deleted** | Methods now in `InspectorClient` | +| `cli/src/client/resources.ts` | ✅ Moved to `InspectorClient.listResources()`, `readResource()`, `listResourceTemplates()` | **Deleted** | Methods now in `InspectorClient` | +| `cli/src/client/prompts.ts` | ✅ Moved to `InspectorClient.listPrompts()`, `getPrompt()` | **Deleted** | Methods now in `InspectorClient` | +| `cli/src/client/types.ts` | Keep (temporary) | **Deprecated** (use SDK types) | Use SDK types directly | +| `cli/src/index.ts::parseArgs()` | Keep CLI-specific | Keep CLI-specific | CLI-only argument parsing | +| `cli/__tests__/helpers/test-fixtures.ts` | ✅ Moved to `shared/test/test-server-fixtures.ts` (renamed) | CLI tests import from shared | Shared test server configs and definitions | +| `cli/__tests__/helpers/test-server-http.ts` | ✅ Moved to `shared/test/test-server-http.ts` | CLI tests import from shared | Shared test harness | +| `cli/__tests__/helpers/test-server-stdio.ts` | ✅ Moved to `shared/test/test-server-stdio.ts` | CLI tests import from shared | Shared test harness | +| `cli/__tests__/helpers/fixtures.ts` | Keep in CLI tests | Keep in CLI tests | CLI-specific test utilities (config file creation, etc.) | + +## Phase 3: Convert CLI to Use Shared Code ✅ COMPLETE Replace the CLI's direct MCP SDK usage with `InspectorClient` from `shared/mcp/`, consolidating client logic and leveraging the shared codebase. +**Status**: Phase 3 is complete. The CLI now uses `InspectorClient` for all MCP operations, with a local `argsToMcpServerConfig()` function to convert CLI arguments to `MCPServerConfig`. The CLI helper functions (`tools.ts`, `resources.ts`, `prompts.ts`) have been moved into `InspectorClient` as methods (`listTools()`, `callTool()`, `listResources()`, `readResource()`, `listResourceTemplates()`, `listPrompts()`, `getPrompt()`, `setLoggingLevel()`), and the `cli/src/client/` directory has been removed. JSON utilities were extracted to `shared/json/jsonUtils.ts`. The CLI sets `autoFetchServerContents: false` (since it calls methods directly) and `initialLoggingLevel: "debug"` for consistent logging. The TUI's `ToolTestModal` has also been updated to use `InspectorClient.callTool()` instead of the SDK Client directly. All CLI tests pass with the new implementation. + ### 3.1 Current CLI Architecture The CLI currently: @@ -433,70 +465,79 @@ The CLI currently: **Replace direct Client usage with InspectorClient:** 1. **Replace transport creation:** - - Remove `createTransportOptions()` function - - Replace `createTransport(transportOptions)` with `createTransportFromConfig(mcpServerConfig)` - - Convert CLI args to `MCPServerConfig` using `argsToMcpServerConfig()` + - ✅ Removed `createTransportOptions()` function + - ✅ Implemented local `argsToMcpServerConfig()` function in `cli/src/index.ts` that converts CLI `Args` to `MCPServerConfig` + - ✅ `InspectorClient` handles transport creation internally via `createTransportFromConfig()` 2. **Replace connection management:** - - Replace `new Client()` + `connect(client, transport)` with `new InspectorClient(config)` + `inspectorClient.connect()` - - Replace `disconnect(transport)` with `inspectorClient.disconnect()` + - ✅ Replaced `new Client()` + `connect(client, transport)` with `new InspectorClient(config)` + `inspectorClient.connect()` + - ✅ Replaced `disconnect(transport)` with `inspectorClient.disconnect()` 3. **Update client utilities:** - - Keep CLI-specific utility functions (`listTools`, `callTool`, etc.) but update them to accept `InspectorClient` instead of `Client` - - Use `inspectorClient.getClient()` to access SDK methods - - This preserves the CLI's API while using shared code internally + - ✅ Kept CLI-specific utility functions (`listTools`, `callTool`, etc.) - they still accept `Client` (SDK type) + - ✅ Utilities use `inspectorClient.getClient()` to access SDK methods + - ✅ This preserves the CLI's API while using shared code internally 4. **Update main CLI flow:** - - In `callMethod()`, replace transport/client setup with `InspectorClient` - - Update all method calls to use utilities that work with `InspectorClient` + - ✅ In `callMethod()`, replaced transport/client setup with `InspectorClient` + - ✅ All method calls use utilities that work with `inspectorClient.getClient()` + - ✅ Configured `InspectorClient` with `autoFetchServerContents: false` (CLI calls methods directly) + - ✅ Configured `InspectorClient` with `initialLoggingLevel: "debug"` for consistent CLI logging ### 3.3 Migration Steps -1. **Update imports in `cli/src/index.ts`:** - - Import `InspectorClient` from `@modelcontextprotocol/inspector-shared/mcp/index.js` - - Import `argsToMcpServerConfig` from `@modelcontextprotocol/inspector-shared/mcp/index.js` - - Import `createTransportFromConfig` from `@modelcontextprotocol/inspector-shared/mcp/index.js` - - Import `MCPServerConfig` type from `@modelcontextprotocol/inspector-shared/mcp/index.js` - -2. **Replace transport creation:** - - Remove `createTransportOptions()` function - - Remove `createTransport()` import from `./transport.js` - - Update `callMethod()` to use `argsToMcpServerConfig()` to convert CLI args - - Use `createTransportFromConfig()` instead of `createTransport()` - -3. **Replace Client with InspectorClient:** - - Replace `new Client(clientIdentity)` with `new InspectorClient(mcpServerConfig)` - - Replace `connect(client, transport)` with `inspectorClient.connect()` - - Replace `disconnect(transport)` with `inspectorClient.disconnect()` - -4. **Update client utilities:** - - Update `cli/src/client/tools.ts` to accept `InspectorClient` instead of `Client` - - Update `cli/src/client/resources.ts` to accept `InspectorClient` instead of `Client` - - Update `cli/src/client/prompts.ts` to accept `InspectorClient` instead of `Client` - - Update `cli/src/client/connection.ts` or remove it (use `InspectorClient` methods directly) - - All utilities should use `inspectorClient.getClient()` to access SDK methods - -5. **Update CLI argument conversion:** - - Map CLI's `Args` type to `argsToMcpServerConfig()` parameters - - Handle transport type mapping: CLI uses `"http"` for streamable-http, map to `"streamable-http"` for the function - - Ensure all CLI argument combinations are correctly converted - -6. **Update tests:** - - Update CLI test imports to use `@modelcontextprotocol/inspector-shared/test/` (already done in Phase 2) - - Update tests to use `InspectorClient` instead of direct `Client` - - Verify all test scenarios still pass - -7. **Deprecate old files:** - - Mark `cli/src/transport.ts` as deprecated (keep for now, add deprecation comment) - - Mark `cli/src/client/connection.ts` as deprecated (keep for now, add deprecation comment) - - These can be removed in a future cleanup after confirming everything works - -8. **Test thoroughly:** - - Test all CLI methods (tools/list, tools/call, resources/list, resources/read, prompts/list, prompts/get, logging/setLevel) - - Test all transport types (stdio, SSE, streamable-http) - - Verify CLI output format is preserved (JSON output should be identical) - - Run all CLI tests - - Test with real MCP servers (not just test harness) +1. **Update imports in `cli/src/index.ts`:** ✅ + - ✅ Import `InspectorClient` from `@modelcontextprotocol/inspector-shared/mcp/inspectorClient.js` + - ✅ Import `MCPServerConfig`, `StdioServerConfig`, `SseServerConfig`, `StreamableHttpServerConfig` types from `@modelcontextprotocol/inspector-shared/mcp/types.js` + - ✅ Import `LoggingLevel` and `LoggingLevelSchema` from SDK for log level validation + +2. **Replace transport creation:** ✅ + - ✅ Removed `createTransportOptions()` function + - ✅ Removed `createTransport()` import from `./transport.js` + - ✅ Implemented local `argsToMcpServerConfig()` function in `cli/src/index.ts` that: + - Takes CLI `Args` type directly + - Handles all CLI-specific conversions (URL detection, transport validation, `"http"` → `"streamable-http"` mapping) + - Returns `MCPServerConfig` for use with `InspectorClient` + - ✅ `InspectorClient` handles transport creation internally + +3. **Replace Client with InspectorClient:** ✅ + - ✅ Replaced `new Client(clientIdentity)` with `new InspectorClient(mcpServerConfig, options)` + - ✅ Replaced `connect(client, transport)` with `inspectorClient.connect()` + - ✅ Replaced `disconnect(transport)` with `inspectorClient.disconnect()` + - ✅ Configured `InspectorClient` with: + - `autoFetchServerContents: false` (CLI calls methods directly, no auto-fetching needed) + - `initialLoggingLevel: "debug"` (consistent CLI logging) + +4. **Update client utilities:** ✅ + - ✅ Moved CLI helper functions (`tools.ts`, `resources.ts`, `prompts.ts`) into `InspectorClient` as methods + - ✅ Added `listTools()`, `callTool()`, `listResources()`, `readResource()`, `listResourceTemplates()`, `listPrompts()`, `getPrompt()`, `setLoggingLevel()` methods to `InspectorClient` + - ✅ Extracted JSON conversion utilities to `shared/json/jsonUtils.ts` + - ✅ Deleted `cli/src/client/` directory entirely + - ✅ CLI now calls `inspectorClient.listTools()`, `inspectorClient.callTool()`, etc. directly + +5. **Update CLI argument conversion:** ✅ + - ✅ Local `argsToMcpServerConfig()` handles all CLI-specific logic: + - Detects URL vs. command + - Validates transport/URL combinations + - Auto-detects transport type from URL path (`/mcp` → streamable-http, `/sse` → SSE) + - Maps CLI's `"http"` to `"streamable-http"` + - Handles stdio command/args/env conversion + - ✅ All CLI argument combinations are correctly converted + +6. **Update tests:** ✅ + - ✅ CLI tests already use `@modelcontextprotocol/inspector-shared/test/` (done in Phase 2) + - ✅ Tests use `InspectorClient` via the CLI's `callMethod()` function + - ✅ All test scenarios pass + +7. **Cleanup:** + - ✅ Deleted `cli/src/client/` directory (tools.ts, resources.ts, prompts.ts, types.ts, index.ts) + - `cli/src/transport.ts` - Still exists but is no longer used (can be removed in future cleanup) + +8. **Test thoroughly:** ✅ + - ✅ All CLI methods tested (tools/list, tools/call, resources/list, resources/read, prompts/list, prompts/get, logging/setLevel) + - ✅ All transport types tested (stdio, SSE, streamable-http) + - ✅ CLI output format preserved (identical JSON) + - ✅ All CLI tests pass ### 3.4 Example Conversion @@ -518,19 +559,27 @@ await disconnect(transport); **After (with shared code):** ```typescript -const config = argsToMcpServerConfig({ - command: args.target[0], - args: args.target.slice(1), - transport: args.transport === "http" ? "streamable-http" : args.transport, - serverUrl: args.target[0]?.startsWith("http") ? args.target[0] : undefined, - headers: args.headers, +// Local function in cli/src/index.ts converts CLI Args to MCPServerConfig +const config = argsToMcpServerConfig(args); // Handles all CLI-specific conversions + +const inspectorClient = new InspectorClient(config, { + clientIdentity, + autoFetchServerContents: false, // CLI calls methods directly + initialLoggingLevel: "debug", // Consistent CLI logging }); -const inspectorClient = new InspectorClient(config); + await inspectorClient.connect(); -const result = await listTools(inspectorClient, args.metadata); +const result = await listTools(inspectorClient.getClient(), args.metadata); await inspectorClient.disconnect(); ``` +**Key differences:** + +- `argsToMcpServerConfig()` is a **local function** in `cli/src/index.ts` (not imported from shared) +- It takes CLI's `Args` type directly and handles all CLI-specific conversions internally +- `InspectorClient` is configured with `autoFetchServerContents: false` (CLI doesn't need auto-fetching) +- Client utilities still accept `Client` (SDK type) and use `inspectorClient.getClient()` to access it + ## Package.json Configuration ### Root package.json @@ -708,21 +757,24 @@ This provides a single entry point with consistent argument parsing across all t - [x] Test CLI tests (verify test fixtures work from new location) - [x] Update documentation -### Phase 3: Convert CLI to Use Shared Code - -- [ ] Update CLI imports to use `InspectorClient`, `argsToMcpServerConfig`, `createTransportFromConfig` from `@modelcontextprotocol/inspector-shared/mcp/` -- [ ] Replace `createTransportOptions()` with `argsToMcpServerConfig()` in `cli/src/index.ts` -- [ ] Replace `createTransport()` with `createTransportFromConfig()` -- [ ] Replace `new Client()` + `connect()` with `new InspectorClient()` + `connect()` -- [ ] Replace `disconnect(transport)` with `inspectorClient.disconnect()` -- [ ] Update `cli/src/client/tools.ts` to accept `InspectorClient` instead of `Client` -- [ ] Update `cli/src/client/resources.ts` to accept `InspectorClient` instead of `Client` -- [ ] Update `cli/src/client/prompts.ts` to accept `InspectorClient` instead of `Client` -- [ ] Update `cli/src/client/connection.ts` or remove it (use `InspectorClient` methods) -- [ ] Handle transport type mapping (`"http"` → `"streamable-http"`) -- [ ] Mark `cli/src/transport.ts` as deprecated -- [ ] Mark `cli/src/client/connection.ts` as deprecated -- [ ] Test all CLI methods with all transport types -- [ ] Verify CLI output format is preserved (identical JSON) -- [ ] Run all CLI tests -- [ ] Update documentation +### Phase 3: Convert CLI to Use Shared Code ✅ COMPLETE + +- [x] Update CLI imports to use `InspectorClient` from `@modelcontextprotocol/inspector-shared/mcp/inspectorClient.js` +- [x] Update CLI imports to use `MCPServerConfig` types from `@modelcontextprotocol/inspector-shared/mcp/types.js` +- [x] Implement local `argsToMcpServerConfig()` function in `cli/src/index.ts` that converts CLI `Args` to `MCPServerConfig` +- [x] Remove `createTransportOptions()` function +- [x] Remove `createTransport()` import and usage +- [x] Replace `new Client()` + `connect()` with `new InspectorClient()` + `connect()` +- [x] Replace `disconnect(transport)` with `inspectorClient.disconnect()` +- [x] Configure `InspectorClient` with `autoFetchServerContents: false` and `initialLoggingLevel: "debug"` +- [x] Move CLI helper functions to `InspectorClient` as methods (`listTools`, `callTool`, `listResources`, `readResource`, `listResourceTemplates`, `listPrompts`, `getPrompt`, `setLoggingLevel`) +- [x] Extract JSON utilities to `shared/json/jsonUtils.ts` +- [x] Delete `cli/src/client/` directory +- [x] Update TUI `ToolTestModal` to use `InspectorClient.callTool()` instead of SDK Client +- [x] Handle transport type mapping (`"http"` → `"streamable-http"`) in local `argsToMcpServerConfig()` +- [x] Handle URL detection and transport auto-detection in local `argsToMcpServerConfig()` +- [x] Update `validLogLevels` to use `LoggingLevelSchema.enum` from SDK +- [x] Test all CLI methods with all transport types +- [x] Verify CLI output format is preserved (identical JSON) +- [x] Run all CLI tests (all passing) +- [x] Update documentation diff --git a/shared/json/jsonUtils.ts b/shared/json/jsonUtils.ts new file mode 100644 index 000000000..2fdd0853a --- /dev/null +++ b/shared/json/jsonUtils.ts @@ -0,0 +1,101 @@ +import type { Tool } from "@modelcontextprotocol/sdk/types.js"; + +/** + * JSON value type used across the inspector project + */ +export type JsonValue = + | string + | number + | boolean + | null + | undefined + | JsonValue[] + | { [key: string]: JsonValue }; + +/** + * Simple schema type for parameter conversion + */ +type ParameterSchema = { + type?: string; +}; + +/** + * Convert a string parameter value to the appropriate JSON type based on schema + * @param value String value to convert + * @param schema Schema type information + * @returns Converted JSON value + */ +export function convertParameterValue( + value: string, + schema: ParameterSchema, +): JsonValue { + if (!value) { + return value; + } + + if (schema.type === "number" || schema.type === "integer") { + return Number(value); + } + + if (schema.type === "boolean") { + return value.toLowerCase() === "true"; + } + + if (schema.type === "object" || schema.type === "array") { + try { + return JSON.parse(value) as JsonValue; + } catch (error) { + return value; + } + } + + return value; +} + +/** + * Convert string parameters to JSON values based on tool schema + * @param tool Tool definition with input schema + * @param params String parameters to convert + * @returns Converted parameters as JSON values + */ +export function convertToolParameters( + tool: Tool, + params: Record, +): Record { + const result: Record = {}; + const properties = tool.inputSchema?.properties || {}; + + for (const [key, value] of Object.entries(params)) { + const paramSchema = properties[key] as ParameterSchema | undefined; + + if (paramSchema) { + result[key] = convertParameterValue(value, paramSchema); + } else { + // If no schema is found for this parameter, keep it as string + result[key] = value; + } + } + + return result; +} + +/** + * Convert prompt arguments (JsonValue) to strings for prompt API + * @param args Prompt arguments as JsonValue + * @returns String arguments for prompt API + */ +export function convertPromptArguments( + args: Record, +): Record { + const stringArgs: Record = {}; + for (const [key, value] of Object.entries(args)) { + if (typeof value === "string") { + stringArgs[key] = value; + } else if (value === null || value === undefined) { + stringArgs[key] = String(value); + } else { + stringArgs[key] = JSON.stringify(value); + } + } + return stringArgs; +} diff --git a/shared/mcp/index.ts b/shared/mcp/index.ts index af9348541..a44e81f5b 100644 --- a/shared/mcp/index.ts +++ b/shared/mcp/index.ts @@ -17,3 +17,11 @@ export type { MessageEntry, ServerState, } from "./types.js"; + +// Re-export JSON utilities +export type { JsonValue } from "../json/jsonUtils.js"; +export { + convertParameterValue, + convertToolParameters, + convertPromptArguments, +} from "../json/jsonUtils.js"; diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index ab95fa68d..62c60b671 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -23,7 +23,13 @@ import type { ServerCapabilities, Implementation, LoggingLevel, + Tool, } from "@modelcontextprotocol/sdk/types.js"; +import { + type JsonValue, + convertToolParameters, + convertPromptArguments, +} from "../json/jsonUtils.js"; import { EventEmitter } from "events"; export interface InspectorClientOptions { @@ -360,6 +366,244 @@ export class InspectorClient extends EventEmitter { return this.instructions; } + /** + * Set the logging level for the MCP server + * @param level Logging level to set + * @throws Error if client is not connected or server doesn't support logging + */ + async setLoggingLevel(level: LoggingLevel): Promise { + if (!this.client) { + throw new Error("Client is not connected"); + } + if (!this.capabilities?.logging) { + throw new Error("Server does not support logging"); + } + await this.client.setLoggingLevel(level); + } + + /** + * List available tools + * @param metadata Optional metadata to include in the request + * @returns Response containing tools array + */ + async listTools( + metadata?: Record, + ): Promise> { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + const params = + metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; + const response = await this.client.listTools(params); + return response; + } catch (error) { + throw new Error( + `Failed to list tools: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + + /** + * Call a tool by name + * @param name Tool name + * @param args Tool arguments + * @param generalMetadata Optional general metadata + * @param toolSpecificMetadata Optional tool-specific metadata (takes precedence over general) + * @returns Tool call response + */ + async callTool( + name: string, + args: Record, + generalMetadata?: Record, + toolSpecificMetadata?: Record, + ): Promise> { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + const toolsResponse = await this.listTools(generalMetadata); + const tools = (toolsResponse.tools as Tool[]) || []; + const tool = tools.find((t) => t.name === name); + + let convertedArgs: Record = args; + + if (tool) { + // Convert parameters based on the tool's schema, but only for string values + // since we now accept pre-parsed values from the CLI + const stringArgs: Record = {}; + for (const [key, value] of Object.entries(args)) { + if (typeof value === "string") { + stringArgs[key] = value; + } + } + + if (Object.keys(stringArgs).length > 0) { + const convertedStringArgs = convertToolParameters(tool, stringArgs); + convertedArgs = { ...args, ...convertedStringArgs }; + } + } + + // Merge general metadata with tool-specific metadata + // Tool-specific metadata takes precedence over general metadata + let mergedMetadata: Record | undefined; + if (generalMetadata || toolSpecificMetadata) { + mergedMetadata = { + ...(generalMetadata || {}), + ...(toolSpecificMetadata || {}), + }; + } + + const response = await this.client.callTool({ + name: name, + arguments: convertedArgs, + _meta: + mergedMetadata && Object.keys(mergedMetadata).length > 0 + ? mergedMetadata + : undefined, + }); + return response; + } catch (error) { + throw new Error( + `Failed to call tool ${name}: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + + /** + * List available resources + * @param metadata Optional metadata to include in the request + * @returns Response containing resources array + */ + async listResources( + metadata?: Record, + ): Promise> { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + const params = + metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; + const response = await this.client.listResources(params); + return response; + } catch (error) { + throw new Error( + `Failed to list resources: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + + /** + * Read a resource by URI + * @param uri Resource URI + * @param metadata Optional metadata to include in the request + * @returns Resource content + */ + async readResource( + uri: string, + metadata?: Record, + ): Promise> { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + const params: any = { uri }; + if (metadata && Object.keys(metadata).length > 0) { + params._meta = metadata; + } + const response = await this.client.readResource(params); + return response; + } catch (error) { + throw new Error( + `Failed to read resource ${uri}: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + + /** + * List resource templates + * @param metadata Optional metadata to include in the request + * @returns Response containing resource templates array + */ + async listResourceTemplates( + metadata?: Record, + ): Promise> { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + const params = + metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; + const response = await this.client.listResourceTemplates(params); + return response; + } catch (error) { + throw new Error( + `Failed to list resource templates: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + + /** + * List available prompts + * @param metadata Optional metadata to include in the request + * @returns Response containing prompts array + */ + async listPrompts( + metadata?: Record, + ): Promise> { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + const params = + metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; + const response = await this.client.listPrompts(params); + return response; + } catch (error) { + throw new Error( + `Failed to list prompts: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + + /** + * Get a prompt by name + * @param name Prompt name + * @param args Optional prompt arguments + * @param metadata Optional metadata to include in the request + * @returns Prompt content + */ + async getPrompt( + name: string, + args?: Record, + metadata?: Record, + ): Promise> { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + // Convert all arguments to strings for prompt arguments + const stringArgs = args ? convertPromptArguments(args) : {}; + + const params: any = { + name, + arguments: stringArgs, + }; + + if (metadata && Object.keys(metadata).length > 0) { + params._meta = metadata; + } + + const response = await this.client.getPrompt(params); + + return response; + } catch (error) { + throw new Error( + `Failed to get prompt: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + /** * Fetch server info (capabilities, serverInfo, instructions) from cached initialize response * This does not send any additional MCP requests - it just reads cached data diff --git a/shared/package.json b/shared/package.json index c6a84212c..dec11634f 100644 --- a/shared/package.json +++ b/shared/package.json @@ -9,7 +9,8 @@ ".": "./build/mcp/index.js", "./mcp/*": "./build/mcp/*", "./react/*": "./build/react/*", - "./test/*": "./build/test/*" + "./test/*": "./build/test/*", + "./json/*": "./build/json/*" }, "files": [ "build" diff --git a/shared/tsconfig.json b/shared/tsconfig.json index 98147655f..ad92161ff 100644 --- a/shared/tsconfig.json +++ b/shared/tsconfig.json @@ -16,6 +16,6 @@ "resolveJsonModule": true, "noUncheckedIndexedAccess": true }, - "include": ["mcp/**/*.ts", "react/**/*.ts", "react/**/*.tsx"], + "include": ["mcp/**/*.ts", "react/**/*.ts", "react/**/*.tsx", "json/**/*.ts"], "exclude": ["node_modules", "build"] } diff --git a/tui/src/App.tsx b/tui/src/App.tsx index c41b62961..68499e56a 100644 --- a/tui/src/App.tsx +++ b/tui/src/App.tsx @@ -16,7 +16,6 @@ import { NotificationsTab } from "./components/NotificationsTab.js"; import { HistoryTab } from "./components/HistoryTab.js"; import { ToolTestModal } from "./components/ToolTestModal.js"; import { DetailsModal } from "./components/DetailsModal.js"; -import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; const __filename = fileURLToPath(import.meta.url); const __dirname = dirname(__filename); @@ -80,7 +79,7 @@ function App({ configFile }: AppProps) { // Tool test modal state const [toolTestModal, setToolTestModal] = useState<{ tool: any; - client: Client | null; + inspectorClient: InspectorClient | null; } | null>(null); // Details modal state @@ -831,7 +830,10 @@ function App({ configFile }: AppProps) { : null } onTestTool={(tool) => - setToolTestModal({ tool, client: inspectorClient }) + setToolTestModal({ + tool, + inspectorClient: selectedInspectorClient, + }) } onViewDetails={(tool) => setDetailsModal({ @@ -901,7 +903,7 @@ function App({ configFile }: AppProps) { {toolTestModal && ( setToolTestModal(null)} diff --git a/tui/src/components/ToolTestModal.tsx b/tui/src/components/ToolTestModal.tsx index 518cd9642..7f08304ee 100644 --- a/tui/src/components/ToolTestModal.tsx +++ b/tui/src/components/ToolTestModal.tsx @@ -1,13 +1,13 @@ import React, { useState, useEffect } from "react"; import { Box, Text, useInput, type Key } from "ink"; import { Form } from "ink-form"; -import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; +import { InspectorClient } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; import { schemaToForm } from "../utils/schemaToForm.js"; import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; interface ToolTestModalProps { tool: any; - client: Client | null; + inspectorClient: InspectorClient | null; width: number; height: number; onClose: () => void; @@ -25,7 +25,7 @@ interface ToolResult { export function ToolTestModal({ tool, - client, + inspectorClient, width, height, onClose, @@ -110,29 +110,29 @@ export function ToolTestModal({ ); const handleFormSubmit = async (values: Record) => { - if (!client || !tool) return; + if (!inspectorClient || !tool) return; setState("loading"); const startTime = Date.now(); try { - const response = await client.callTool({ - name: tool.name, - arguments: values, - }); + // Use InspectorClient.callTool() which handles parameter conversion and metadata + const response = await inspectorClient.callTool(tool.name, values); const duration = Date.now() - startTime; - // Handle MCP SDK response format - const output = response.isError + // InspectorClient.callTool() returns Record + // Check for error indicators in the response + const isError = "isError" in response && response.isError === true; + const output = isError ? { error: true, content: response.content } : response.structuredContent || response.content || response; setResult({ input: values, - output: response.isError ? null : output, - error: response.isError ? "Tool returned an error" : undefined, - errorDetails: response.isError ? output : undefined, + output: isError ? null : output, + error: isError ? "Tool returned an error" : undefined, + errorDetails: isError ? output : undefined, duration, }); setState("results"); From 4e5edb2b6434a8083805acfbd722640b3ed1c24b Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Tue, 20 Jan 2026 12:04:16 -0800 Subject: [PATCH 19/44] Refactor InspectorClient to extend EventTarget instead of EventEmitter, enabling cross-platform event handling for both browser and Node.js. Update related documentation and React hook to utilize new event system, ensuring compatibility and improved state management across TUI and web clients. --- docs/tui-integration-design.md | 7 +- shared/mcp/inspectorClient.ts | 112 +++++++++++++++++++---------- shared/react/useInspectorClient.ts | 96 ++++++++++++++++--------- 3 files changed, 143 insertions(+), 72 deletions(-) diff --git a/docs/tui-integration-design.md b/docs/tui-integration-design.md index f7042b69f..340848436 100644 --- a/docs/tui-integration-design.md +++ b/docs/tui-integration-design.md @@ -206,7 +206,7 @@ The project now includes `InspectorClient` (`shared/mcp/inspectorClient.ts`), a - **Wraps MCP SDK Client**: Provides a clean interface over the underlying SDK `Client` - **Message Tracking**: Automatically tracks all JSON-RPC messages (requests, responses, notifications) - **Stderr Logging**: Captures and stores stderr output from stdio transports -- **Event-Driven**: Extends `EventEmitter` for reactive UI updates +- **Event-Driven**: Extends `EventTarget` for reactive UI updates (cross-platform: works in both browser and Node.js) - **Server Data Management**: Automatically fetches and caches tools, resources, prompts, capabilities, server info, and instructions - **State Management**: Manages connection status, message history, and server state - **Transport Abstraction**: Works with all transport types (stdio, sse, streamable-http) @@ -242,7 +242,7 @@ The shared codebase includes MCP, React, JSON utilities, and test fixtures: **`shared/react/`** - React-specific utilities: -- `useInspectorClient.ts` - React hook for `InspectorClient` +- `useInspectorClient.ts` - React hook for `InspectorClient` that subscribes to EventTarget events and provides reactive state (works in both TUI and web client) **`shared/test/`** - Test fixtures and harness servers: @@ -254,12 +254,13 @@ The shared codebase includes MCP, React, JSON utilities, and test fixtures: 1. **Unified Client Interface**: Single class handles all client operations 2. **Automatic State Management**: No manual state synchronization needed -3. **Event-Driven Updates**: Perfect for reactive UIs (React/Ink) +3. **Event-Driven Updates**: Perfect for reactive UIs (React/Ink) using EventTarget (cross-platform compatible) 4. **Message History**: Built-in request/response/notification tracking 5. **Stderr Capture**: Automatic logging for stdio transports 6. **Type Safety**: Uses SDK types directly, no data loss 7. **High-Level Methods**: Provides convenient wrappers for tools, resources, prompts, and logging with automatic parameter conversion and error handling 8. **Code Reuse**: CLI and TUI both use the same `InspectorClient` methods, eliminating duplicate helper code +9. **Cross-Platform Events**: EventTarget works in both browser and Node.js, enabling future web client integration ## Phase 2: Extract MCP Module to Shared Directory ✅ COMPLETE diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index 62c60b671..a53172d7c 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -30,8 +30,6 @@ import { convertToolParameters, convertPromptArguments, } from "../json/jsonUtils.js"; -import { EventEmitter } from "events"; - export interface InspectorClientOptions { /** * Client identity (name and version) @@ -72,10 +70,10 @@ export interface InspectorClientOptions { * InspectorClient wraps an MCP Client and provides: * - Message tracking and storage * - Stderr log tracking and storage (for stdio transports) - * - Event emitter interface for React hooks + * - EventTarget interface for React hooks (cross-platform: works in browser and Node.js) * - Access to client functionality (prompts, resources, tools) */ -export class InspectorClient extends EventEmitter { +export class InspectorClient extends EventTarget { private client: Client | null = null; private transport: any = null; private baseTransport: any = null; @@ -178,15 +176,19 @@ export class InspectorClient extends EventEmitter { this.baseTransport.onclose = () => { if (this.status !== "disconnected") { this.status = "disconnected"; - this.emit("statusChange", this.status); - this.emit("disconnect"); + this.dispatchEvent( + new CustomEvent("statusChange", { detail: this.status }), + ); + this.dispatchEvent(new Event("disconnect")); } }; this.baseTransport.onerror = (error: Error) => { this.status = "error"; - this.emit("statusChange", this.status); - this.emit("error", error); + this.dispatchEvent( + new CustomEvent("statusChange", { detail: this.status }), + ); + this.dispatchEvent(new CustomEvent("error", { detail: error })); }; this.client = new Client( @@ -212,17 +214,21 @@ export class InspectorClient extends EventEmitter { try { this.status = "connecting"; - this.emit("statusChange", this.status); + this.dispatchEvent( + new CustomEvent("statusChange", { detail: this.status }), + ); // Clear message history on connect (start fresh for new session) // Don't clear stderrLogs - they persist across reconnects this.messages = []; - this.emit("messagesChange"); + this.dispatchEvent(new Event("messagesChange")); await this.client.connect(this.transport); this.status = "connected"; - this.emit("statusChange", this.status); - this.emit("connect"); + this.dispatchEvent( + new CustomEvent("statusChange", { detail: this.status }), + ); + this.dispatchEvent(new Event("connect")); // Always fetch server info (capabilities, serverInfo, instructions) - this is just cached data from initialize await this.fetchServerInfo(); @@ -238,8 +244,10 @@ export class InspectorClient extends EventEmitter { } } catch (error) { this.status = "error"; - this.emit("statusChange", this.status); - this.emit("error", error); + this.dispatchEvent( + new CustomEvent("statusChange", { detail: this.status }), + ); + this.dispatchEvent(new CustomEvent("error", { detail: error })); throw error; } } @@ -259,8 +267,10 @@ export class InspectorClient extends EventEmitter { // But we also do it here in case disconnect() is called directly if (this.status !== "disconnected") { this.status = "disconnected"; - this.emit("statusChange", this.status); - this.emit("disconnect"); + this.dispatchEvent( + new CustomEvent("statusChange", { detail: this.status }), + ); + this.dispatchEvent(new Event("disconnect")); } // Clear server state (tools, resources, prompts) on disconnect @@ -271,12 +281,22 @@ export class InspectorClient extends EventEmitter { this.capabilities = undefined; this.serverInfo = undefined; this.instructions = undefined; - this.emit("toolsChange", this.tools); - this.emit("resourcesChange", this.resources); - this.emit("promptsChange", this.prompts); - this.emit("capabilitiesChange", this.capabilities); - this.emit("serverInfoChange", this.serverInfo); - this.emit("instructionsChange", this.instructions); + this.dispatchEvent(new CustomEvent("toolsChange", { detail: this.tools })); + this.dispatchEvent( + new CustomEvent("resourcesChange", { detail: this.resources }), + ); + this.dispatchEvent( + new CustomEvent("promptsChange", { detail: this.prompts }), + ); + this.dispatchEvent( + new CustomEvent("capabilitiesChange", { detail: this.capabilities }), + ); + this.dispatchEvent( + new CustomEvent("serverInfoChange", { detail: this.serverInfo }), + ); + this.dispatchEvent( + new CustomEvent("instructionsChange", { detail: this.instructions }), + ); } /** @@ -617,14 +637,20 @@ export class InspectorClient extends EventEmitter { try { // Get server capabilities (cached from initialize response) this.capabilities = this.client.getServerCapabilities(); - this.emit("capabilitiesChange", this.capabilities); + this.dispatchEvent( + new CustomEvent("capabilitiesChange", { detail: this.capabilities }), + ); // Get server info (name, version) and instructions (cached from initialize response) this.serverInfo = this.client.getServerVersion(); this.instructions = this.client.getInstructions(); - this.emit("serverInfoChange", this.serverInfo); + this.dispatchEvent( + new CustomEvent("serverInfoChange", { detail: this.serverInfo }), + ); if (this.instructions !== undefined) { - this.emit("instructionsChange", this.instructions); + this.dispatchEvent( + new CustomEvent("instructionsChange", { detail: this.instructions }), + ); } } catch (error) { // Ignore errors in fetching server info @@ -647,11 +673,15 @@ export class InspectorClient extends EventEmitter { try { const result = await this.client.listResources(); this.resources = result.resources || []; - this.emit("resourcesChange", this.resources); + this.dispatchEvent( + new CustomEvent("resourcesChange", { detail: this.resources }), + ); } catch (err) { // Ignore errors, just leave empty this.resources = []; - this.emit("resourcesChange", this.resources); + this.dispatchEvent( + new CustomEvent("resourcesChange", { detail: this.resources }), + ); } } @@ -659,11 +689,15 @@ export class InspectorClient extends EventEmitter { try { const result = await this.client.listPrompts(); this.prompts = result.prompts || []; - this.emit("promptsChange", this.prompts); + this.dispatchEvent( + new CustomEvent("promptsChange", { detail: this.prompts }), + ); } catch (err) { // Ignore errors, just leave empty this.prompts = []; - this.emit("promptsChange", this.prompts); + this.dispatchEvent( + new CustomEvent("promptsChange", { detail: this.prompts }), + ); } } @@ -671,11 +705,15 @@ export class InspectorClient extends EventEmitter { try { const result = await this.client.listTools(); this.tools = result.tools || []; - this.emit("toolsChange", this.tools); + this.dispatchEvent( + new CustomEvent("toolsChange", { detail: this.tools }), + ); } catch (err) { // Ignore errors, just leave empty this.tools = []; - this.emit("toolsChange", this.tools); + this.dispatchEvent( + new CustomEvent("toolsChange", { detail: this.tools }), + ); } } } catch (error) { @@ -689,8 +727,8 @@ export class InspectorClient extends EventEmitter { this.messages.shift(); } this.messages.push(entry); - this.emit("message", entry); - this.emit("messagesChange"); + this.dispatchEvent(new CustomEvent("message", { detail: entry })); + this.dispatchEvent(new Event("messagesChange")); } private updateMessageResponse( @@ -701,8 +739,8 @@ export class InspectorClient extends EventEmitter { // Update the entry in place (mutate the object directly) requestEntry.response = response; requestEntry.duration = duration; - this.emit("message", requestEntry); - this.emit("messagesChange"); + this.dispatchEvent(new CustomEvent("message", { detail: requestEntry })); + this.dispatchEvent(new Event("messagesChange")); } private addStderrLog(entry: StderrLogEntry): void { @@ -714,7 +752,7 @@ export class InspectorClient extends EventEmitter { this.stderrLogs.shift(); } this.stderrLogs.push(entry); - this.emit("stderrLog", entry); - this.emit("stderrLogsChange"); + this.dispatchEvent(new CustomEvent("stderrLog", { detail: entry })); + this.dispatchEvent(new Event("stderrLogsChange")); } } diff --git a/shared/react/useInspectorClient.ts b/shared/react/useInspectorClient.ts index 42e261cba..cf48ffd13 100644 --- a/shared/react/useInspectorClient.ts +++ b/shared/react/useInspectorClient.ts @@ -9,6 +9,9 @@ import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; import type { ServerCapabilities, Implementation, + Tool, + ResourceReference, + PromptReference, } from "@modelcontextprotocol/sdk/types.js"; export interface UseInspectorClientResult { @@ -85,64 +88,93 @@ export function useInspectorClient( setInstructions(inspectorClient.getInstructions()); // Event handlers - const onStatusChange = (newStatus: ConnectionStatus) => { - setStatus(newStatus); + // Note: We use event payloads when available for efficiency, with explicit type casting + // since EventTarget doesn't provide compile-time type safety + const onStatusChange = (event: Event) => { + const customEvent = event as CustomEvent; + setStatus(customEvent.detail); }; const onMessagesChange = () => { + // messagesChange doesn't include payload, so we fetch setMessages(inspectorClient.getMessages()); }; const onStderrLogsChange = () => { + // stderrLogsChange doesn't include payload, so we fetch setStderrLogs(inspectorClient.getStderrLogs()); }; - const onToolsChange = (newTools: any[]) => { - setTools(newTools); + const onToolsChange = (event: Event) => { + const customEvent = event as CustomEvent; + setTools(customEvent.detail); }; - const onResourcesChange = (newResources: any[]) => { - setResources(newResources); + const onResourcesChange = (event: Event) => { + const customEvent = event as CustomEvent; + setResources(customEvent.detail); }; - const onPromptsChange = (newPrompts: any[]) => { - setPrompts(newPrompts); + const onPromptsChange = (event: Event) => { + const customEvent = event as CustomEvent; + setPrompts(customEvent.detail); }; - const onCapabilitiesChange = (newCapabilities?: ServerCapabilities) => { - setCapabilities(newCapabilities); + const onCapabilitiesChange = (event: Event) => { + const customEvent = event as CustomEvent; + setCapabilities(customEvent.detail); }; - const onServerInfoChange = (newServerInfo?: Implementation) => { - setServerInfo(newServerInfo); + const onServerInfoChange = (event: Event) => { + const customEvent = event as CustomEvent; + setServerInfo(customEvent.detail); }; - const onInstructionsChange = (newInstructions?: string) => { - setInstructions(newInstructions); + const onInstructionsChange = (event: Event) => { + const customEvent = event as CustomEvent; + setInstructions(customEvent.detail); }; // Subscribe to events - inspectorClient.on("statusChange", onStatusChange); - inspectorClient.on("messagesChange", onMessagesChange); - inspectorClient.on("stderrLogsChange", onStderrLogsChange); - inspectorClient.on("toolsChange", onToolsChange); - inspectorClient.on("resourcesChange", onResourcesChange); - inspectorClient.on("promptsChange", onPromptsChange); - inspectorClient.on("capabilitiesChange", onCapabilitiesChange); - inspectorClient.on("serverInfoChange", onServerInfoChange); - inspectorClient.on("instructionsChange", onInstructionsChange); + inspectorClient.addEventListener("statusChange", onStatusChange); + inspectorClient.addEventListener("messagesChange", onMessagesChange); + inspectorClient.addEventListener("stderrLogsChange", onStderrLogsChange); + inspectorClient.addEventListener("toolsChange", onToolsChange); + inspectorClient.addEventListener("resourcesChange", onResourcesChange); + inspectorClient.addEventListener("promptsChange", onPromptsChange); + inspectorClient.addEventListener( + "capabilitiesChange", + onCapabilitiesChange, + ); + inspectorClient.addEventListener("serverInfoChange", onServerInfoChange); + inspectorClient.addEventListener( + "instructionsChange", + onInstructionsChange, + ); // Cleanup return () => { - inspectorClient.off("statusChange", onStatusChange); - inspectorClient.off("messagesChange", onMessagesChange); - inspectorClient.off("stderrLogsChange", onStderrLogsChange); - inspectorClient.off("toolsChange", onToolsChange); - inspectorClient.off("resourcesChange", onResourcesChange); - inspectorClient.off("promptsChange", onPromptsChange); - inspectorClient.off("capabilitiesChange", onCapabilitiesChange); - inspectorClient.off("serverInfoChange", onServerInfoChange); - inspectorClient.off("instructionsChange", onInstructionsChange); + inspectorClient.removeEventListener("statusChange", onStatusChange); + inspectorClient.removeEventListener("messagesChange", onMessagesChange); + inspectorClient.removeEventListener( + "stderrLogsChange", + onStderrLogsChange, + ); + inspectorClient.removeEventListener("toolsChange", onToolsChange); + inspectorClient.removeEventListener("resourcesChange", onResourcesChange); + inspectorClient.removeEventListener("promptsChange", onPromptsChange); + inspectorClient.removeEventListener( + "capabilitiesChange", + onCapabilitiesChange, + ); + inspectorClient.removeEventListener( + "serverInfoChange", + onServerInfoChange, + ); + inspectorClient.removeEventListener( + "instructionsChange", + onInstructionsChange, + ); }; }, [inspectorClient]); From 46b27f2310e889a62b0a92b2bf1d5e124823635c Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Tue, 20 Jan 2026 12:38:47 -0800 Subject: [PATCH 20/44] Update CLI workflow to build shared package and adjust build commands. The shared package is now built before the CLI, ensuring proper dependencies are in place. This change enhances the build process and maintains consistency across the project. --- .github/workflows/cli_tests.yml | 7 +- docs/web-client-inspectorclient-analysis.md | 363 ++++++++++++++++++++ 2 files changed, 369 insertions(+), 1 deletion(-) create mode 100644 docs/web-client-inspectorclient-analysis.md diff --git a/.github/workflows/cli_tests.yml b/.github/workflows/cli_tests.yml index ede7643e8..9fe2f710f 100644 --- a/.github/workflows/cli_tests.yml +++ b/.github/workflows/cli_tests.yml @@ -28,8 +28,13 @@ jobs: cd .. npm ci --ignore-scripts + - name: Build shared package + working-directory: . + run: npm run build-shared + - name: Build CLI - run: npm run build + working-directory: . + run: npm run build-cli - name: Run tests run: npm test diff --git a/docs/web-client-inspectorclient-analysis.md b/docs/web-client-inspectorclient-analysis.md new file mode 100644 index 000000000..9e82a2c95 --- /dev/null +++ b/docs/web-client-inspectorclient-analysis.md @@ -0,0 +1,363 @@ +# Web Client Integration with InspectorClient - Analysis + +## Current Web Client Architecture + +### `useConnection` Hook Responsibilities + +The web client's `useConnection` hook (`client/src/lib/hooks/useConnection.ts`) currently handles: + +1. **Connection Management** + - Connection status state (`disconnected`, `connecting`, `connected`, `error`, `error-connecting-to-proxy`) + - Direct vs. proxy connection modes + - Proxy health checking + +2. **Transport Creation** + - Creates SSE or StreamableHTTP transports directly + - Handles proxy mode (connects to proxy server endpoints) + - Handles direct mode (connects directly to MCP server) + - Manages transport options (headers, fetch wrappers, reconnection options) + +3. **OAuth Authentication** + - Browser-based OAuth flow (authorization code flow) + - OAuth token management via `InspectorOAuthClientProvider` + - Session storage for OAuth tokens + - OAuth callback handling + - Token refresh + +4. **Custom Headers** + - Custom header management (migration from legacy auth) + - Header validation + - OAuth token injection into headers + - Special header processing (`x-custom-auth-headers`) + +5. **Request/Response Tracking** + - Request history (`{ request: string, response?: string }[]`) + - History management (`pushHistory`, `clearRequestHistory`) + - Different format than InspectorClient's `MessageEntry[]` + +6. **Notification Handling** + - Notification handlers via callbacks (`onNotification`, `onStdErrNotification`) + - Multiple notification schemas (Cancelled, Logging, ResourceUpdated, etc.) + - Fallback notification handler + +7. **Request Handlers** + - Elicitation request handling (`onElicitationRequest`) + - Pending request handling (`onPendingRequest`) + - Roots request handling (`getRoots`) + +8. **Completion Support** + - Completion capability detection + - Completion state management + +9. **Progress Notifications** + - Progress notification handling + - Timeout reset on progress + +10. **Session Management** + - Session ID tracking (`mcpSessionId`) + - Protocol version tracking (`mcpProtocolVersion`) + - Response header capture + +11. **Server Information** + - Server capabilities + - Server implementation info + - Protocol version + +12. **Error Handling** + - Proxy auth errors + - OAuth errors + - Connection errors + - Retry logic + +### App.tsx State Management + +The main `App.tsx` component manages: + +- Resources, resource templates, resource content +- Prompts, prompt content +- Tools, tool results +- Errors per tab +- Connection configuration (command, args, sseUrl, transportType, etc.) +- OAuth configuration +- Custom headers +- Notifications +- Roots +- Environment variables +- Log level +- Active tab +- Pending requests +- And more... + +## InspectorClient Capabilities + +### What InspectorClient Provides + +1. **Connection Management** + - Connection status (`disconnected`, `connecting`, `connected`, `error`) + - `connect()` and `disconnect()` methods + - Automatic transport creation from `MCPServerConfig` + +2. **Message Tracking** + - Tracks all JSON-RPC messages (requests, responses, notifications) + - `MessageEntry[]` format with timestamps, direction, duration + - Event-driven updates (`message`, `messagesChange` events) + +3. **Stderr Logging** + - Captures stderr from stdio transports + - `StderrLogEntry[]` format + - Event-driven updates (`stderrLog`, `stderrLogsChange` events) + +4. **Server Data Management** + - Auto-fetches tools, resources, prompts (configurable) + - Caches capabilities, serverInfo, instructions + - Event-driven updates for all server data + +5. **High-Level Methods** + - `listTools()`, `callTool()` - with parameter conversion + - `listResources()`, `readResource()`, `listResourceTemplates()` + - `listPrompts()`, `getPrompt()` - with argument stringification + - `setLoggingLevel()` - with capability checks + +6. **Event-Driven Updates** + - EventTarget-based events (cross-platform) + - Events: `statusChange`, `connect`, `disconnect`, `error`, `toolsChange`, `resourcesChange`, `promptsChange`, `capabilitiesChange`, `serverInfoChange`, `instructionsChange`, `message`, `messagesChange`, `stderrLog`, `stderrLogsChange` + +7. **Transport Abstraction** + - Works with stdio, SSE, streamable-http + - Creates transports from `MCPServerConfig` + - Handles transport lifecycle + +### What InspectorClient Doesn't Provide + +1. **OAuth Authentication** + - No OAuth flow handling + - No token management + - No OAuth callback handling + +2. **Proxy Mode** + - Doesn't handle proxy server connections + - Doesn't handle proxy authentication + - Doesn't construct proxy URLs + +3. **Custom Headers** + - Doesn't support custom headers in transport creation + - Doesn't handle header validation + - Doesn't inject OAuth tokens into headers + +4. **Request History** + - Uses `MessageEntry[]` format (different from web client's `{ request: string, response?: string }[]`) + - Different tracking approach + +5. **Completion Support** + - No completion capability detection + - No completion state management + +6. **Elicitation Support** + - No elicitation request handling + +7. **Progress Notifications** + - No progress notification handling + - No timeout reset on progress + +8. **Session Management** + - No session ID tracking + - No protocol version tracking + +9. **Request Handlers** + - No support for setting request handlers (elicitation, pending requests, roots) + +10. **Direct vs. Proxy Mode** + - Doesn't distinguish between direct and proxy connections + - Doesn't handle proxy health checking + +## Integration Challenges + +### 1. OAuth Authentication + +**Challenge**: InspectorClient doesn't handle OAuth. The web client needs browser-based OAuth flow. + +**Options**: + +- **Option A**: Keep OAuth handling in web client, inject tokens into transport config +- **Option B**: Extend InspectorClient to accept OAuth provider/callback +- **Option C**: Create a web-specific wrapper around InspectorClient + +**Recommendation**: Option A - Keep OAuth in web client, pass tokens via custom headers in `MCPServerConfig`. + +### 2. Proxy Mode + +**Challenge**: InspectorClient doesn't handle proxy mode. Web client connects through proxy server. + +**Options**: + +- **Option A**: Extend `MCPServerConfig` to support proxy mode +- **Option B**: Create proxy-aware transport factory +- **Option C**: Keep proxy handling in web client, construct proxy URLs before creating InspectorClient + +**Recommendation**: Option C - Handle proxy URL construction in web client, pass final URL to InspectorClient. + +### 3. Custom Headers + +**Challenge**: InspectorClient's transport creation doesn't support custom headers. + +**Options**: + +- **Option A**: Extend `MCPServerConfig` to include custom headers +- **Option B**: Extend transport creation to accept headers +- **Option C**: Keep header handling in web client, pass via transport options + +**Recommendation**: Option A - Add `headers` to `SseServerConfig` and `StreamableHttpServerConfig` in `MCPServerConfig`. + +### 4. Request History Format + +**Challenge**: Web client uses `{ request: string, response?: string }[]`, InspectorClient uses `MessageEntry[]`. + +**Options**: + +- **Option A**: Convert InspectorClient messages to web client format +- **Option B**: Update web client to use `MessageEntry[]` format +- **Option C**: Keep both, use InspectorClient for new features + +**Recommendation**: Option B - Update web client to use `MessageEntry[]` format (more detailed, better for debugging). + +### 5. Completion Support + +**Challenge**: InspectorClient doesn't detect or manage completion support. + +**Options**: + +- **Option A**: Add completion support to InspectorClient +- **Option B**: Keep completion detection in web client +- **Option C**: Use capabilities to detect completion support + +**Recommendation**: Option C - Check `capabilities.completions` from InspectorClient's `getCapabilities()`. + +### 6. Elicitation Support + +**Challenge**: InspectorClient doesn't support request handlers (elicitation, pending requests, roots). + +**Options**: + +- **Option A**: Add request handler support to InspectorClient +- **Option B**: Access underlying SDK Client via `getClient()` to set handlers +- **Option C**: Keep elicitation handling in web client + +**Recommendation**: Option B - Use `inspectorClient.getClient()` to set request handlers (minimal change). + +### 7. Progress Notifications + +**Challenge**: InspectorClient doesn't handle progress notifications or timeout reset. + +**Options**: + +- **Option A**: Add progress notification handling to InspectorClient +- **Option B**: Handle progress in web client via notification callbacks +- **Option C**: Extend InspectorClient to support progress callbacks + +**Recommendation**: Option B - Handle progress via existing notification system (InspectorClient already tracks notifications). + +### 8. Session Management + +**Challenge**: InspectorClient doesn't track session ID or protocol version. + +**Options**: + +- **Option A**: Add session tracking to InspectorClient +- **Option B**: Track session in web client via transport access +- **Option C**: Extract from transport after connection + +**Recommendation**: Option B - Access transport via `inspectorClient.getClient()` to get session info. + +## Integration Strategy + +### Phase 1: Extend InspectorClient for Web Client Needs + +1. **Add Custom Headers Support** + - Add `headers?: Record` to `SseServerConfig` and `StreamableHttpServerConfig` + - Pass headers to transport creation + +2. **Add Request Handler Access** + - Document that `getClient()` can be used to set request handlers + - Or add convenience methods: `setRequestHandler()`, `setElicitationHandler()`, etc. + +3. **Add Progress Notification Support** + - Add `onProgress?: (progress: Progress) => void` to `InspectorClientOptions` + - Forward progress notifications to callback + +### Phase 2: Create Web-Specific Wrapper or Adapter + +**Option A: Web-Specific Hook** + +- Create `useInspectorClientWeb()` that wraps `useInspectorClient()` +- Handles OAuth, proxy mode, custom headers +- Converts between web client state and InspectorClient + +**Option B: Web Connection Adapter** + +- Create adapter that converts web client config to `MCPServerConfig` +- Handles proxy URL construction +- Manages OAuth token injection + +**Option C: Hybrid Approach** + +- Use `InspectorClient` for core MCP operations +- Keep `useConnection` for OAuth, proxy, and web-specific features +- Gradually migrate features to InspectorClient + +### Phase 3: Migrate Web Client to InspectorClient + +1. **Replace `useConnection` with `useInspectorClient`** + - Use `useInspectorClient` hook from shared package + - Handle OAuth and proxy in wrapper/adapter + - Convert request history format + +2. **Update App.tsx** + - Use InspectorClient state instead of useConnection state + - Update components to use new state format + - Migrate request history to MessageEntry format + +3. **Remove Duplicate Code** + - Remove `useConnection` hook + - Remove duplicate transport creation + - Remove duplicate server data fetching + +## Benefits of Integration + +1. **Code Reuse**: Share MCP client logic across TUI, CLI, and web client +2. **Consistency**: Same behavior across all three interfaces +3. **Maintainability**: Single source of truth for MCP operations +4. **Features**: Web client gets message tracking, stderr logging, event-driven updates +5. **Type Safety**: Shared types ensure consistency +6. **Testing**: Shared code is tested once, works everywhere + +## Risks and Considerations + +1. **Complexity**: Web client has many web-specific features (OAuth, proxy, custom headers) +2. **Breaking Changes**: Migration may require significant refactoring +3. **Testing**: Need to ensure all web client features still work +4. **Performance**: EventTarget events may have different performance characteristics +5. **Bundle Size**: Adding shared package increases bundle size (but code is already there) + +## Recommendation + +**Start with Option C (Hybrid Approach)**: + +1. **Short Term**: Keep `useConnection` for OAuth, proxy, and web-specific features +2. **Medium Term**: Use `InspectorClient` for core MCP operations (tools, resources, prompts) +3. **Long Term**: Gradually migrate to full `InspectorClient` integration + +This approach: + +- Minimizes risk (incremental migration) +- Allows testing at each step +- Preserves existing functionality +- Enables code sharing where it makes sense +- Provides path to full integration + +**Specific Next Steps**: + +1. Extend `MCPServerConfig` to support custom headers +2. Create adapter function to convert web client config to `MCPServerConfig` +3. Use `InspectorClient` for tools/resources/prompts operations (via `getClient()` initially) +4. Gradually migrate state management to `useInspectorClient` +5. Eventually replace `useConnection` with `useInspectorClient` + web-specific wrapper From 379b29a676dd4b1a6f8dc8e1fcef41f077dce23a Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Tue, 20 Jan 2026 14:22:18 -0800 Subject: [PATCH 21/44] Finalized shared architecture doc. --- docs/shared-code-architecture.md | 628 ++++++++++++++++ docs/tui-integration-design.md | 781 -------------------- docs/web-client-inspectorclient-analysis.md | 363 --------- 3 files changed, 628 insertions(+), 1144 deletions(-) create mode 100644 docs/shared-code-architecture.md delete mode 100644 docs/tui-integration-design.md delete mode 100644 docs/web-client-inspectorclient-analysis.md diff --git a/docs/shared-code-architecture.md b/docs/shared-code-architecture.md new file mode 100644 index 000000000..330f9730f --- /dev/null +++ b/docs/shared-code-architecture.md @@ -0,0 +1,628 @@ +# Shared Code Architecture for MCP Inspector + +## Overview + +This document describes a shared code architecture that enables code reuse across the MCP Inspector's three user interfaces: the **CLI**, **TUI** (Terminal User Interface), and **web client** (likely targeting v2). The shared codebase approach prevents the feature drift and maintenance burden that can occur when each app has a separate implementation. + +### Motivation + +Previously, the CLI and web client had no shared code, leading to: + +- **Feature drift**: Implementations diverged over time +- **Maintenance burden**: Bug fixes and features had to be implemented twice +- **Inconsistency**: Different behavior across interfaces +- **Duplication**: Similar logic implemented separately in each interface + +Adding the TUI (as-is) with yet another separate implementation seemed problematic given the above. + +The shared code architecture addresses these issues by providing a single source of truth for MCP client operations that all three interfaces can use. + +## Current Architecture + +### Project Structure + +``` +inspector/ +├── cli/ # CLI workspace (uses shared code) +├── tui/ # TUI workspace (uses shared code) +├── client/ # Web client workspace (to be migrated) +├── server/ # Proxy server workspace +├── shared/ # Shared code workspace package +│ ├── mcp/ # MCP client/server interaction +│ ├── react/ # Shared React code +│ ├── json/ # JSON utilities +│ └── test/ # Test fixtures and harness servers +└── package.json # Root workspace config +``` + +### Shared Package (`@modelcontextprotocol/inspector-shared`) + +The `shared/` directory is a **workspace package** that: + +- **Private** (`"private": true`) - internal-only, not published +- **Built separately** - compiles to `shared/build/` with TypeScript declarations +- **Referenced via package name** - workspaces import using `@modelcontextprotocol/inspector-shared/*` +- **Uses TypeScript Project References** - CLI and TUI reference shared for build ordering and type resolution +- **React peer dependency** - declares React 19.2.3 as peer dependency (consumers provide React) + +**Build Order**: Shared must be built before CLI and TUI (enforced via TypeScript Project References and CI workflows). + +## InspectorClient: The Core Shared Component + +### Overview + +`InspectorClient` (`shared/mcp/inspectorClient.ts`) is a comprehensive wrapper around the MCP SDK `Client` that manages the creation and lifecycle of the MCP client and transport. It provides: + +- **Unified Client Interface**: Single class handles all client operations +- **Client and Transport Lifecycle**: Manages creation, connection, and cleanup of MCP SDK `Client` and `Transport` instances +- **Message Tracking**: Automatically tracks all JSON-RPC messages (requests, responses, notifications) +- **Stderr Logging**: Captures and stores stderr output from stdio transports +- **Event-Driven Updates**: Uses `EventTarget` for reactive UI updates (cross-platform: works in browser and Node.js) +- **Server Data Management**: Automatically fetches and caches tools, resources, prompts, capabilities, server info, and instructions +- **State Management**: Manages connection status, message history, and server state +- **Transport Abstraction**: Works with all `Transport` types (stdio, SSE, streamable-http) +- **High-Level Methods**: Provides convenient wrappers for tools, resources, prompts, and logging + +### Key Features + +**Connection Management:** + +- `connect()` - Establishes connection and optionally fetches server data +- `disconnect()` - Closes connection and clears server state +- Connection status tracking (`disconnected`, `connecting`, `connected`, `error`) + +**Message Tracking:** + +- Tracks all JSON-RPC messages with timestamps, direction, and duration +- `MessageEntry[]` format with full request/response/notification history +- Event-driven updates (`message`, `messagesChange` events) + +**Server Data Management:** + +- Auto-fetches tools, resources, prompts (configurable via `autoFetchServerContents`) +- Caches capabilities, serverInfo, instructions +- Event-driven updates for all server data (`toolsChange`, `resourcesChange`, `promptsChange`, etc.) + +**MCP Method Wrappers:** + +- `listTools(metadata?)` - List available tools +- `callTool(name, args, generalMetadata?, toolSpecificMetadata?)` - Call a tool with automatic parameter conversion +- `listResources(metadata?)` - List available resources +- `readResource(uri, metadata?)` - Read a resource by URI +- `listResourceTemplates(metadata?)` - List resource templates +- `listPrompts(metadata?)` - List available prompts +- `getPrompt(name, args?, metadata?)` - Get a prompt with automatic argument stringification +- `setLoggingLevel(level)` - Set logging level with capability checks + +**Configurable Options:** + +- `autoFetchServerContents` - Controls whether to auto-fetch tools/resources/prompts on connect (default: `true` for TUI, `false` for CLI) +- `initialLoggingLevel` - Sets the logging level on connect if server supports logging (optional) +- `maxMessages` - Maximum number of messages to store (default: 1000) +- `maxStderrLogEvents` - Maximum number of stderr log entries to store (default: 1000) +- `pipeStderr` - Whether to pipe stderr for stdio transports (default: `true` for TUI, `false` for CLI) + +### Event System + +`InspectorClient` extends `EventTarget` for cross-platform compatibility: + +**Events with payloads:** + +- `statusChange` → `ConnectionStatus` +- `toolsChange` → `Tool[]` +- `resourcesChange` → `ResourceReference[]` +- `promptsChange` → `PromptReference[]` +- `capabilitiesChange` → `ServerCapabilities | undefined` +- `serverInfoChange` → `Implementation | undefined` +- `instructionsChange` → `string | undefined` +- `message` → `MessageEntry` +- `stderrLog` → `StderrLogEntry` +- `error` → `Error` + +**Events without payloads (signals):** + +- `connect` - Connection established +- `disconnect` - Connection closed +- `messagesChange` - Message list changed (fetch via `getMessages()`) +- `stderrLogsChange` - Stderr logs changed (fetch via `getStderrLogs()`) + +### Shared Module Structure + +**`shared/mcp/`** - MCP client/server interaction: + +- `inspectorClient.ts` - Main `InspectorClient` class +- `transport.ts` - Transport creation from `MCPServerConfig` +- `config.ts` - Config file loading (`loadMcpServersConfig`) +- `types.ts` - Shared types (`MCPServerConfig`, `MessageEntry`, `ConnectionStatus`, etc.) +- `messageTrackingTransport.ts` - Transport wrapper for message tracking +- `index.ts` - Public API exports + +**`shared/json/`** - JSON utilities: + +- `jsonUtils.ts` - JSON value types and conversion utilities (`JsonValue`, `convertParameterValue`, `convertToolParameters`, `convertPromptArguments`) + +**`shared/react/`** - Shared React code: + +- `useInspectorClient.ts` - React hook that subscribes to EventTarget events and provides reactive state (works in both TUI and web client) + +**`shared/test/`** - Test fixtures and harness servers: + +- `test-server-fixtures.ts` - Shared server configs and definitions +- `test-server-http.ts` - HTTP/SSE test server +- `test-server-stdio.ts` - Stdio test server + +## Integration History + +### Phase 1: TUI Integration (Complete) + +The TUI was integrated from the [`mcp-inspect`](https://github.com/TeamSparkAI/mcp-inspect) project as a standalone workspace. During integration, the TUI developed `InspectorClient` as a comprehensive client wrapper, providing a good foundation for code sharing. + +**Key decisions:** + +- TUI developed `InspectorClient` to wrap MCP SDK `Client` +- Organized MCP code into `tui/src/mcp/` module +- Created React hook `useInspectorClient` for reactive state management + +### Phase 2: Extract to Shared Package (Complete) + +All MCP-related code was moved from TUI to `shared/` to enable reuse: + +**Moved to `shared/mcp/`:** + +- `inspectorClient.ts` - Main client wrapper +- `transport.ts` - Transport creation +- `config.ts` - Config loading +- `types.ts` - Shared types +- `messageTrackingTransport.ts` - Message tracking wrapper + +**Moved to `shared/react/`:** + +- `useInspectorClient.ts` - React hook + +**Moved to `shared/test/`:** + +- Test fixtures and harness servers (from CLI tests) + +**Configuration:** + +- Created `shared/package.json` as workspace package +- Configured TypeScript Project References +- Set React 19.2.3 as peer dependency +- Aligned all workspaces to React 19.2.3 + +### Phase 3: CLI Migration (Complete) + +The CLI was migrated to use `InspectorClient` from the shared package: + +**Changes:** + +- Replaced direct SDK `Client` usage with `InspectorClient` +- Moved CLI helper functions (`tools.ts`, `resources.ts`, `prompts.ts`) into `InspectorClient` as methods +- Extracted JSON utilities to `shared/json/jsonUtils.ts` +- Deleted `cli/src/client/` directory +- Implemented local `argsToMcpServerConfig()` function in CLI to convert CLI arguments to `MCPServerConfig` +- CLI now uses `inspectorClient.listTools()`, `inspectorClient.callTool()`, etc. directly + +**Configuration:** + +- CLI sets `autoFetchServerContents: false` (calls methods directly) +- CLI sets `initialLoggingLevel: "debug"` for consistent logging + +## Current Usage + +### CLI Usage + +The CLI uses `InspectorClient` for all MCP operations: + +```typescript +// Convert CLI args to MCPServerConfig +const config = argsToMcpServerConfig(args); + +// Create InspectorClient +const inspectorClient = new InspectorClient(config, { + clientIdentity, + autoFetchServerContents: false, // CLI calls methods directly + initialLoggingLevel: "debug", +}); + +// Connect and use +await inspectorClient.connect(); +const result = await inspectorClient.listTools(args.metadata); +await inspectorClient.disconnect(); +``` + +### TUI Usage + +The TUI uses `InspectorClient` via the `useInspectorClient` React hook: + +```typescript +// In TUI component +const { status, messages, tools, resources, prompts, connect, disconnect } = + useInspectorClient(inspectorClient); + +// InspectorClient is created from config and managed by App.tsx +// The hook automatically subscribes to events and provides reactive state +``` + +**TUI Configuration:** + +- Sets `autoFetchServerContents: true` (default) - automatically fetches server data on connect +- Uses `useInspectorClient` hook for reactive UI updates +- `ToolTestModal` uses `inspectorClient.callTool()` directly + +**TUI Status:** + +- **Experimental**: The TUI functionality may be considered "experimental" until sufficient testing and review of features and implementation. This allows for iteration and refinement based on user feedback before committing to a stable feature set. +- **Feature Gaps**: Current feature gaps with the web UX include lack of support for OAuth, completions, elicitation, and sampling. These will be addressed in Phase 4 by extending `InspectorClient` with the required functionality. Note that some features, like MCP-UI, may not be feasible in a terminal-based interface. There is a plan for implementing OAuth from the TUI. + +**Entry Point:** +The TUI is invoked via the main `mcp-inspector` command with a `--tui` flag: + +- `mcp-inspector --tui ...` → TUI mode +- `mcp-inspector --cli ...` → CLI mode +- `mcp-inspector ...` → Web client mode (default) + +This provides a single entry point with consistent argument parsing across all three UX modes. + +## Phase 4: TUI Feature Gap Implementation (Planned) + +### Overview + +The next phase will address TUI feature gaps (OAuth, completions, elicitation, and sampling) by extending `InspectorClient` with the required functionality. This approach serves dual purposes: + +1. **TUI Feature Parity**: Brings TUI closer to feature parity with the web client +2. **InspectorClient Preparation**: Prepares `InspectorClient` for full web client integration + +When complete, `InspectorClient` will be very close to ready for full support of the v2 web client (which is currently under development). + +### Features to Implement + +**1. OAuth Support** + +- Add OAuth authentication flow support to `InspectorClient` +- TUI-specific: Browser-based OAuth flow with localhost callback server +- Web client benefit: OAuth support will be ready for v2 web client integration + +**2. Completion Support** + +- Add completion capability detection and management +- Add `handleCompletion()` method or access pattern for `completion/complete` requests +- TUI benefit: Enables autocomplete in TUI forms +- Web client benefit: Completion support ready for v2 web client + +**3. Elicitation Support** + +- Add request handler support for elicitation requests +- Add convenience methods: `setElicitationHandler()`, `setPendingRequestHandler()`, `setRootsHandler()` +- TUI benefit: Enables elicitation workflows in TUI +- Web client benefit: Request handler support ready for v2 web client + +**4. Sampling Support** + +- Add sampling capability detection and management +- Add methods or access patterns for sampling requests +- TUI benefit: Enables sampling workflows in TUI +- Web client benefit: Sampling support ready for v2 web client + +### Implementation Strategy + +As each TUI feature gap is addressed: + +1. Extend `InspectorClient` with the required functionality +2. Implement the feature in TUI using the new `InspectorClient` capabilities +3. Test the feature in TUI context +4. Document the new `InspectorClient` API + +This incremental approach ensures: + +- Features are validated in real usage (TUI) before web client integration +- `InspectorClient` API is refined based on actual needs +- Both TUI and v2 web client benefit from shared implementation + +### Relationship to Web Client Integration + +The features added in Phase 4 directly address the "Features Needed in InspectorClient for Web Client" listed in the Web Client Integration Plan. By implementing these for TUI first, we: + +- Validate the API design with real usage +- Ensure the implementation works in a React context (TUI uses React/Ink) +- Build toward full v2 web client support incrementally + +Once Phase 4 is complete, `InspectorClient` will have most of the functionality needed for v2 web client integration, with primarily adapter/wrapper work remaining. + +## Web Client Integration Plan + +### Current Web Client Architecture + +The web client currently uses `useConnection` hook (`client/src/lib/hooks/useConnection.ts`) that handles: + +1. **Connection Management** + - Connection status state (`disconnected`, `connecting`, `connected`, `error`, `error-connecting-to-proxy`) + - Direct vs. proxy connection modes + - Proxy health checking + +2. **Transport Creation** + - Creates SSE or StreamableHTTP transports directly + - Handles proxy mode (connects to proxy server endpoints) + - Handles direct mode (connects directly to MCP server) + - Manages transport options (headers, fetch wrappers, reconnection options) + +3. **OAuth Authentication** + - Browser-based OAuth flow (authorization code flow) + - OAuth token management via `InspectorOAuthClientProvider` + - Session storage for OAuth tokens + - OAuth callback handling + - Token refresh + +4. **Custom Headers** + - Custom header management (migration from legacy auth) + - Header validation + - OAuth token injection into headers + - Special header processing (`x-custom-auth-headers`) + +5. **Request/Response Tracking** + - Request history (`{ request: string, response?: string }[]`) + - History management (`pushHistory`, `clearRequestHistory`) + - Different format than InspectorClient's `MessageEntry[]` + +6. **Notification Handling** + - Notification handlers via callbacks (`onNotification`, `onStdErrNotification`) + - Multiple notification schemas (Cancelled, Logging, ResourceUpdated, etc.) + - Fallback notification handler + +7. **Request Handlers** + - Elicitation request handling (`onElicitationRequest`) + - Pending request handling (`onPendingRequest`) + - Roots request handling (`getRoots`) + +8. **Completion Support** + - Completion capability detection + - Completion state management + +9. **Progress Notifications** + - Progress notification handling + - Timeout reset on progress + +10. **Session Management** + - Session ID tracking (`mcpSessionId`) + - Protocol version tracking (`mcpProtocolVersion`) + - Response header capture + +11. **Server Information** + - Server capabilities + - Server implementation info + - Protocol version + +12. **Error Handling** + - Proxy auth errors + - OAuth errors + - Connection errors + - Retry logic + +The main `App.tsx` component manages extensive state including: + +- Resources, resource templates, resource content +- Prompts, prompt content +- Tools, tool results +- Errors per tab +- Connection configuration (command, args, sseUrl, transportType, etc.) +- OAuth configuration +- Custom headers +- Notifications +- Roots +- Environment variables +- Log level +- Active tab +- Pending requests + +### Features Needed in InspectorClient for Web Client + +To fully support the web client, `InspectorClient` needs to add support for: + +1. **Custom Headers** - Support for OAuth tokens and custom authentication headers in transport configuration +2. **Request Handlers** - Support for setting elicitation, pending request, and roots handlers +3. **Completion Support** - Methods or access patterns for `completion/complete` requests +4. **Progress Notifications** - Callback support for progress notifications and timeout reset +5. **Session Management** - Access to session ID and protocol version from transport + +### Integration Challenges + +**1. OAuth Authentication** + +- Web client uses browser-based OAuth flow (authorization code with PKCE) +- Requires browser redirects and callback handling +- **Solution**: Keep OAuth handling in web client, inject tokens via custom headers in `MCPServerConfig` + +**2. Proxy Mode** + +- Web client connects through proxy server for stdio transports +- **Solution**: Handle proxy URL construction in web client, pass final URL to `InspectorClient` + +**3. Custom Headers** + +- Web client manages custom headers (OAuth tokens, custom auth headers) +- **Solution**: Extend `MCPServerConfig` to support `headers` in `SseServerConfig` and `StreamableHttpServerConfig` + +**4. Request History Format** + +- Web client uses `{ request: string, response?: string }[]` +- `InspectorClient` uses `MessageEntry[]` (more detailed) +- **Solution**: Migrate web client to use `MessageEntry[]` format + +**5. Completion Support** + +- Web client detects and manages completion capability +- **Solution**: Use `inspectorClient.getCapabilities()?.completions` to detect support, access SDK client via `getClient()` for completion requests + +**6. Elicitation and Request Handlers** + +- Web client sets request handlers for elicitation, pending requests, roots +- **Solution**: Use `inspectorClient.getClient()` to set request handlers (minimal change) + +**7. Progress Notifications** + +- Web client handles progress notifications and timeout reset +- **Solution**: Handle progress via existing notification system (`InspectorClient` already tracks notifications) + +**8. Session Management** + +- Web client tracks session ID and protocol version +- **Solution**: Access transport via `inspectorClient.getClient()` to get session info + +### Integration Strategy + +**Phase 1: Extend InspectorClient for Web Client Needs** + +1. **Add Custom Headers Support** + - Add `headers?: Record` to `SseServerConfig` and `StreamableHttpServerConfig` in `MCPServerConfig` + - Pass headers to transport creation in `shared/mcp/transport.ts` + +2. **Add Request Handler Support** + - Add convenience methods: `setRequestHandler()`, `setElicitationHandler()`, `setRootsHandler()` + - Or document that `getClient()` can be used to set request handlers directly + - Support for elicitation requests, pending requests, and roots requests + +3. **Add Completion Support** + - Add `handleCompletion()` method or document access via `getClient()` + - Completion capability is already available via `getCapabilities()?.completions` + - Web client can use `getClient()` to call `completion/complete` directly + +4. **Add Progress Notification Support** + - Add `onProgress?: (progress: Progress) => void` to `InspectorClientOptions` + - Forward progress notifications to callback + - Support timeout reset on progress notifications + +5. **Add Session Management** + - Expose session ID and protocol version via getter methods + - Or provide access to transport for session information + +**Phase 2: Create Web-Specific Adapter** + +Create adapter function that: + +- Converts web client config to `MCPServerConfig` +- Handles proxy URL construction +- Manages OAuth token injection into headers +- Handles direct vs. proxy mode + +**Phase 3: Hybrid Integration (Recommended)** + +**Short Term:** + +- Keep `useConnection` for OAuth, proxy, and web-specific features +- Use `InspectorClient` for core MCP operations (tools, resources, prompts) via `getClient()` +- Gradually migrate state management + +**Medium Term:** + +- Use `useInspectorClient` hook for state management +- Keep OAuth/proxy handling in web-specific wrapper +- Migrate request history to `MessageEntry[]` format + +**Long Term:** + +- Replace `useConnection` with `useInspectorClient` + web-specific wrapper +- Remove duplicate transport creation +- Remove duplicate server data fetching + +### Benefits of Web Client Integration + +1. **Code Reuse**: Share MCP client logic across all three interfaces, including the shared React hook (`useInspectorClient`) between TUI and web client +2. **Consistency**: Same behavior across CLI, TUI, and web client +3. **Maintainability**: Single source of truth for MCP operations +4. **Features**: Web client gets message tracking, stderr logging, event-driven updates +5. **Type Safety**: Shared types ensure consistency +6. **Testing**: Shared code is tested once, works everywhere + +### Implementation Steps + +1. **Extend `MCPServerConfig`** to support custom headers +2. **Create adapter function** to convert web client config to `MCPServerConfig` +3. **Use `InspectorClient`** for tools/resources/prompts operations (via `getClient()` initially) +4. **Gradually migrate** state management to `useInspectorClient` +5. **Eventually replace** `useConnection` with `useInspectorClient` + web-specific wrapper + +## Technical Details + +### TypeScript Project References + +The shared package uses TypeScript Project References for build orchestration: + +**`shared/tsconfig.json`:** + +```json +{ + "compilerOptions": { + "composite": true, + "declaration": true, + "declarationMap": true + } +} +``` + +**`cli/tsconfig.json` and `tui/tsconfig.json`:** + +```json +{ + "references": [{ "path": "../shared" }] +} +``` + +This ensures: + +- Shared builds first (required for type resolution) +- Type checking across workspace boundaries +- Correct build ordering in CI + +### Build Process + +**Root `package.json` build script:** + +```json +{ + "scripts": { + "build": "npm run build-shared && npm run build-server && npm run build-client && npm run build-cli && npm run build-tui", + "build-shared": "cd shared && npm run build" + } +} +``` + +**CI Workflow:** + +- Build shared package first +- Then build dependent workspaces (CLI, TUI) +- TypeScript Project References enforce this ordering + +### Module Resolution + +Workspaces import using package name: + +```typescript +import { InspectorClient } from "@modelcontextprotocol/inspector-shared/mcp/inspectorClient.js"; +import { useInspectorClient } from "@modelcontextprotocol/inspector-shared/react/useInspectorClient.js"; +``` + +npm workspaces automatically resolve package names to the workspace package. + +## Summary + +The shared code architecture provides: + +- **Single source of truth** for MCP client operations via `InspectorClient` +- **Code reuse** across CLI, TUI, and (planned) web client +- **Consistent behavior** across all interfaces +- **Reduced maintenance burden** - fix once, works everywhere +- **Type safety** through shared types +- **Event-driven updates** via EventTarget (cross-platform compatible) + +**Current Status:** + +- ✅ Phase 1: TUI integrated and using shared code +- ✅ Phase 2: Shared package created and configured +- ✅ Phase 3: CLI migrated to use shared code +- 🔄 Phase 4: TUI feature gap implementation (planned) +- 🔄 Phase 5: v2 web client integration (planned) + +**Next Steps:** + +1. **Phase 4**: Implement TUI feature gaps (OAuth, completions, elicitation, sampling) by extending `InspectorClient` +2. **Phase 5**: Integrate `InspectorClient` with v2 web client (once Phase 4 is complete and v2 web client is ready) diff --git a/docs/tui-integration-design.md b/docs/tui-integration-design.md deleted file mode 100644 index 340848436..000000000 --- a/docs/tui-integration-design.md +++ /dev/null @@ -1,781 +0,0 @@ -# TUI Integration Design - -## Overview - -This document outlines the design for integrating the Terminal User Interface (TUI) from the [`mcp-inspect`](https://github.com/TeamSparkAI/mcp-inspect) project into the MCP Inspector monorepo. - -### Current TUI Project - -The `mcp-inspect` project is a standalone Terminal User Interface (TUI) inspector for Model Context Protocol (MCP) servers. It implements similar functionality to the current MCP Inspector web UX, but as a TUI built with React and Ink. The project is currently maintained separately at https://github.com/TeamSparkAI/mcp-inspect. - -### Integration Goal - -Our goal is to integrate the TUI into the MCP Inspector project, making it a first-class UX option alongside the existing web client and CLI. The integration will be done incrementally across three development phases: - -1. **Phase 1**: Integrate TUI as a standalone runnable workspace (no code sharing) ✅ COMPLETE -2. **Phase 2**: Extract MCP module to shared directory (move TUI's MCP code to `shared/` for reuse) ✅ COMPLETE -3. **Phase 3**: Convert CLI to use shared code (replace CLI's direct SDK usage with `InspectorClient` from `shared/`) ✅ COMPLETE - -**Note**: These three phases represent development staging to break down the work into manageable steps. The first release (PR) will be submitted at the completion of Phase 3, after all code sharing and organization is complete. - -Initially, the TUI will share code primarily with the CLI, as both are terminal-based Node.js applications with similar needs (transport handling, config file loading, MCP client operations). - -**Experimental Status**: The TUI functionality may be considered "experimental" until we have done sufficient testing and review of features and implementation. This allows for iteration and refinement based on user feedback before committing to a stable feature set. - -### Feature Gaps - -Current feature gaps with the web UX include lack of support for elicitation and tasks. These features can be fast follow-ons to the initial integration. After v2 is landed, we will review feature gaps and create a roadmap to bring the TUI to as close to feature parity as possible. Note that some features, like MCP-UI, may not be feasible in a terminal-based interface. - -### Future Vision - -After the v2 work on the web UX lands, an effort will be made to centralize more code so that all three UX modes (web, CLI, TUI) share code to the extent that it makes sense. The goal is to move as much logic as possible into shared code, making the UX implementations as thin as possible. This will: - -- Reduce code duplication across the three interfaces -- Ensure consistent behavior across all UX modes -- Simplify maintenance and feature development -- Create a solid foundation for future enhancements - -## Current Project Structure - -``` -inspector/ -├── cli/ # CLI workspace -│ ├── src/ -│ │ ├── cli.ts # Launcher (spawns web client or CLI) -│ │ ├── index.ts # CLI implementation -│ │ ├── transport.ts -│ │ └── client/ # MCP client utilities -│ └── package.json -├── client/ # Web client workspace (React) -├── server/ # Server workspace -└── package.json # Root workspace config -``` - -## Proposed Structure - -``` -inspector/ -├── cli/ # CLI workspace -│ ├── src/ -│ │ ├── cli.ts # Launcher (spawns web client, CLI, or TUI) -│ │ ├── index.ts # CLI implementation (Phase 3: uses InspectorClient methods) -│ │ └── transport.ts # Phase 3: deprecated (use shared/mcp/transport.ts) -│ ├── __tests__/ -│ │ └── helpers/ # Phase 2: test fixtures moved to shared/test/, Phase 3: imports from shared/test/ -│ └── package.json -├── tui/ # NEW: TUI workspace -│ ├── src/ -│ │ ├── App.tsx # Main TUI application -│ │ └── components/ # TUI React components -│ ├── tui.tsx # TUI entry point -│ └── package.json -├── shared/ # NEW: Shared code workspace package (Phase 2) -│ ├── package.json # Workspace package config (private, internal-only) -│ ├── tsconfig.json # TypeScript config with composite: true -│ ├── mcp/ # MCP client/server interaction code -│ │ ├── index.ts # Public API exports -│ │ ├── inspectorClient.ts # Main InspectorClient class (with MCP method wrappers) -│ │ ├── transport.ts # Transport creation from MCPServerConfig -│ │ ├── config.ts # Config loading and argument conversion -│ │ ├── types.ts # Shared types -│ │ ├── messageTrackingTransport.ts -│ │ └── client.ts -│ ├── json/ # JSON utilities (Phase 3) -│ │ └── jsonUtils.ts # JsonValue type and conversion utilities -│ ├── react/ # React-specific utilities -│ │ └── useInspectorClient.ts # React hook for InspectorClient -│ └── test/ # Test fixtures and harness servers -│ ├── test-server-fixtures.ts -│ ├── test-server-http.ts -│ └── test-server-stdio.ts -├── client/ # Web client workspace -├── server/ # Server workspace -└── package.json -``` - -**Note**: The `shared/` directory is a **workspace package** (`@modelcontextprotocol/inspector-shared`) that is: - -- **Private** (`"private": true`) - not published, internal-only -- **Built separately** - compiles to `shared/build/` with TypeScript declarations -- **Referenced via package name** - workspaces import using `@modelcontextprotocol/inspector-shared/*` -- **Uses TypeScript Project References** - CLI and TUI reference shared for build ordering and type resolution -- **React peer dependency** - declares React 19.2.3 as peer dependency (consumers provide React) - -## Phase 1: Initial Integration (Standalone TUI) - -**Goal**: Get TUI integrated and runnable as a standalone workspace with no code sharing. - -### 1.1 Create TUI Workspace - -Create a new `tui/` workspace that mirrors the structure of `mcp-inspect`: - -- **Location**: `/Users/bob/Documents/GitHub/inspector/tui/` -- **Package name**: `@modelcontextprotocol/inspector-tui` -- **Dependencies**: - - `ink`, `ink-form`, `ink-scroll-view`, `fullscreen-ink` (TUI libraries) - - `react` (for Ink components) - - `@modelcontextprotocol/sdk` (MCP SDK) - - **No dependencies on CLI workspace** (Phase 1 is self-contained) - -### 1.2 Remove CLI Functionality from TUI - -The `mcp-inspect` TUI includes a `src/cli.ts` file that implements CLI functionality. This should be **removed** entirely: - -- **Delete**: `src/cli.ts` from the TUI workspace -- **Remove**: CLI mode handling from `tui.tsx` entry point -- **Rationale**: The inspector project already has a complete CLI implementation in `cli/src/index.ts`. Users should use `mcp-inspector --cli` for CLI functionality. - -### 1.3 Keep TUI Self-Contained (Phase 1) - -For Phase 1, the TUI should be completely self-contained: - -- **Keep**: All utilities from `mcp-inspect` (transport, config, client) in the TUI workspace -- **No imports**: Do not import from CLI workspace yet -- **Goal**: Get TUI working standalone first, then refactor to share code - -**Note**: During Phase 1 implementation, the TUI developed `InspectorClient` and organized MCP code into a `tui/src/mcp/` module. This provides a better foundation for code sharing than originally planned. See "Phase 1.5: InspectorClient Architecture" for details. - -### 1.4 Entry Point Strategy - -The root `cli/src/cli.ts` launcher should be extended to support a `--tui` flag: - -```typescript -// cli/src/cli.ts -async function runTui(args: Args): Promise { - const tuiPath = resolve(__dirname, "../../tui/build/tui.js"); - // Spawn TUI process with appropriate arguments - // Similar to runCli and runWebClient -} - -function main() { - const args = parseArgs(); - - if (args.tui) { - return runTui(args); - } else if (args.cli) { - return runCli(args); - } else { - return runWebClient(args); - } -} -``` - -**Alternative**: The TUI could also be invoked directly via `mcp-inspector-tui` binary, but using the main launcher provides consistency and shared argument parsing. - -### 1.5 Migration Plan - -1. **Create TUI workspace** - - Copy TUI code from `mcp-inspect/src/` to `tui/src/` - - Copy `tui.tsx` entry point - - Set up `tui/package.json` with dependencies - - **Keep all utilities** (transport, config, client) in TUI for now - -2. **Remove CLI functionality** - - Delete `src/cli.ts` from TUI - - Remove CLI mode handling from `tui.tsx` - - Update entry point to only support TUI mode - -3. **Update root launcher** - - Add `--tui` flag to `cli/src/cli.ts` - - Implement `runTui()` function - - Update argument parsing - -4. **Update root package.json** - - Add `tui` to workspaces - - Add build script for TUI - - Add `tui/build` to `files` array (for publishing) - - Update version management scripts to include TUI: - - Add `tui/package.json` to the list of files updated by `update-version.js` - - Add `tui/package.json` to the list of files checked by `check-version-consistency.js` - -5. **Testing** - - Test TUI with test harness servers from `cli/__tests__/helpers/` - - Test all transport types (stdio, SSE, HTTP) using test servers - - Test config file loading - - Test server selection - - Verify TUI works standalone without CLI dependencies - -## Phase 1.5: InspectorClient Architecture (Current State) - -During Phase 1 implementation, the TUI developed a comprehensive client wrapper architecture that provides a better foundation for code sharing than originally planned. - -### InspectorClient Overview - -The project now includes `InspectorClient` (`shared/mcp/inspectorClient.ts`), a comprehensive client wrapper that: - -- **Wraps MCP SDK Client**: Provides a clean interface over the underlying SDK `Client` -- **Message Tracking**: Automatically tracks all JSON-RPC messages (requests, responses, notifications) -- **Stderr Logging**: Captures and stores stderr output from stdio transports -- **Event-Driven**: Extends `EventTarget` for reactive UI updates (cross-platform: works in both browser and Node.js) -- **Server Data Management**: Automatically fetches and caches tools, resources, prompts, capabilities, server info, and instructions -- **State Management**: Manages connection status, message history, and server state -- **Transport Abstraction**: Works with all transport types (stdio, sse, streamable-http) -- **MCP Method Wrappers**: Provides high-level methods for tools, resources, prompts, and logging: - - `listTools()`, `callTool()` - Tool operations with automatic parameter conversion - - `listResources()`, `readResource()`, `listResourceTemplates()` - Resource operations - - `listPrompts()`, `getPrompt()` - Prompt operations with automatic argument stringification - - `setLoggingLevel()` - Logging level management with capability checks -- **Configurable Options**: - - `autoFetchServerContents`: Controls whether to auto-fetch tools/resources/prompts on connect (default: `true` for TUI, `false` for CLI) - - `initialLoggingLevel`: Sets the logging level on connect if server supports logging (optional) - - `maxMessages`: Maximum number of messages to store (default: 1000) - - `maxStderrLogEvents`: Maximum number of stderr log entries to store (default: 1000) - - `pipeStderr`: Whether to pipe stderr for stdio transports (default: `true` for TUI, `false` for CLI) - -### Shared Module Structure (Phase 2 Complete) - -The shared codebase includes MCP, React, JSON utilities, and test fixtures: - -**`shared/mcp/`** - MCP client/server interaction: - -- `inspectorClient.ts` - Main `InspectorClient` class with MCP method wrappers -- `transport.ts` - Transport creation from `MCPServerConfig` -- `config.ts` - Config file loading (`loadMcpServersConfig`) and argument conversion (`argsToMcpServerConfig`) -- `types.ts` - Shared types (`MCPServerConfig`, `MessageEntry`, `ConnectionStatus`, etc.) -- `messageTrackingTransport.ts` - Transport wrapper for message tracking -- `client.ts` - Thin wrapper around SDK `Client` creation -- `index.ts` - Public API exports - -**`shared/json/`** - JSON utilities: - -- `jsonUtils.ts` - JSON value types and conversion utilities (`JsonValue`, `convertParameterValue`, `convertToolParameters`, `convertPromptArguments`) - -**`shared/react/`** - React-specific utilities: - -- `useInspectorClient.ts` - React hook for `InspectorClient` that subscribes to EventTarget events and provides reactive state (works in both TUI and web client) - -**`shared/test/`** - Test fixtures and harness servers: - -- `test-server-fixtures.ts` - Shared server configs and definitions -- `test-server-http.ts` - HTTP/SSE test server -- `test-server-stdio.ts` - Stdio test server - -### Benefits of InspectorClient - -1. **Unified Client Interface**: Single class handles all client operations -2. **Automatic State Management**: No manual state synchronization needed -3. **Event-Driven Updates**: Perfect for reactive UIs (React/Ink) using EventTarget (cross-platform compatible) -4. **Message History**: Built-in request/response/notification tracking -5. **Stderr Capture**: Automatic logging for stdio transports -6. **Type Safety**: Uses SDK types directly, no data loss -7. **High-Level Methods**: Provides convenient wrappers for tools, resources, prompts, and logging with automatic parameter conversion and error handling -8. **Code Reuse**: CLI and TUI both use the same `InspectorClient` methods, eliminating duplicate helper code -9. **Cross-Platform Events**: EventTarget works in both browser and Node.js, enabling future web client integration - -## Phase 2: Extract MCP Module to Shared Directory ✅ COMPLETE - -Move the TUI's MCP module to a shared directory so both TUI and CLI can use it. This establishes the shared codebase before converting the CLI. - -**Status**: Phase 2 is complete. All MCP code has been moved to `shared/mcp/`, the React hook moved to `shared/react/`, and test fixtures moved to `shared/test/`. The `argsToMcpServerConfig()` function has been implemented. Shared is configured as a workspace package with TypeScript Project References. React 19.2.3 is used consistently across all workspaces. - -### 2.1 Shared Package Structure - -Create a `shared/` workspace package at the root level: - -``` -shared/ # Workspace package: @modelcontextprotocol/inspector-shared -├── package.json # Package config (private: true, peerDependencies: react) -├── tsconfig.json # TypeScript config (composite: true, declaration: true) -├── build/ # Compiled output (JS + .d.ts files) -├── mcp/ # MCP client/server interaction code -│ ├── index.ts # Re-exports public API -│ ├── inspectorClient.ts # Main InspectorClient class -│ ├── transport.ts # Transport creation from MCPServerConfig -│ ├── config.ts # Config loading and argument conversion -│ ├── types.ts # Shared types (MCPServerConfig, MessageEntry, etc.) -│ ├── messageTrackingTransport.ts # Transport wrapper for message tracking -│ └── client.ts # Thin wrapper around SDK Client creation -├── react/ # React-specific utilities -│ └── useInspectorClient.ts # React hook for InspectorClient -└── test/ # Test fixtures and harness servers - ├── test-server-fixtures.ts # Shared server configs and definitions - ├── test-server-http.ts - └── test-server-stdio.ts -``` - -**Package Configuration:** - -- `package.json`: Declares `"private": true"` (internal-only, not published) -- `peerDependencies`: `"react": "^19.2.3"` (consumers provide React) -- `devDependencies`: `react`, `@types/react`, `typescript` (for compilation) -- `main`: `"./build/index.js"` (compiled output) -- `types`: `"./build/index.d.ts"` (TypeScript declarations) - -**TypeScript Configuration:** - -- `composite: true` - Enables Project References -- `declaration: true` - Generates .d.ts files -- `rootDir: "."` - Compiles from source root -- `outDir: "./build"` - Outputs to build directory - -**Workspace Integration:** - -- Added to root `workspaces` array -- CLI and TUI declare dependency: `"@modelcontextprotocol/inspector-shared": "*"` -- TypeScript Project References: `"references": [{ "path": "../shared" }]` -- Build order: shared builds first, then CLI/TUI - -### 2.2 Code to Move - -**MCP Module** (from `tui/src/mcp/` to `shared/mcp/`): - -- `inspectorClient.ts` → `shared/mcp/inspectorClient.ts` -- `transport.ts` → `shared/mcp/transport.ts` -- `config.ts` → `shared/mcp/config.ts` (add `argsToMcpServerConfig` function) -- `types.ts` → `shared/mcp/types.ts` -- `messageTrackingTransport.ts` → `shared/mcp/messageTrackingTransport.ts` -- `client.ts` → `shared/mcp/client.ts` -- `index.ts` → `shared/mcp/index.ts` - -**React Hook** (from `tui/src/hooks/` to `shared/react/`): - -- `useInspectorClient.ts` → `shared/react/useInspectorClient.ts` - -**Test Fixtures** (from `cli/__tests__/helpers/` to `shared/test/`): - -- `test-fixtures.ts` → `shared/test/test-server-fixtures.ts` (renamed) -- `test-server-http.ts` → `shared/test/test-server-http.ts` -- `test-server-stdio.ts` → `shared/test/test-server-stdio.ts` - -### 2.3 Add argsToMcpServerConfig Function - -Add a utility function to convert CLI arguments to `MCPServerConfig`: - -```typescript -// shared/mcp/config.ts -export function argsToMcpServerConfig(args: { - command?: string; - args?: string[]; - envArgs?: Record; - transport?: "stdio" | "sse" | "streamable-http"; - serverUrl?: string; - headers?: Record; -}): MCPServerConfig { - // Convert CLI args format to MCPServerConfig format - // Handle stdio, SSE, and streamable-http transports -} -``` - -**Key conversions needed**: - -- CLI `transport: "streamable-http"` → `MCPServerConfig.type: "streamable-http"` (no mapping needed) -- CLI `command` + `args` + `envArgs` → `StdioServerConfig` -- CLI `serverUrl` + `headers` → `SseServerConfig` or `StreamableHttpServerConfig` -- Auto-detect transport type from URL if not specified -- CLI uses `"http"` for streamable-http, so map `"http"` → `"streamable-http"` when calling `argsToMcpServerConfig()` - -### 2.4 Implementation Details - -**Shared Package Setup:** - -1. Created `shared/package.json` as a workspace package (`@modelcontextprotocol/inspector-shared`) -2. Configured TypeScript with `composite: true` and `declaration: true` for Project References -3. Set React 19.2.3 as peer dependency (both client and TUI upgraded to React 19.2.3) -4. Added React and @types/react to devDependencies for TypeScript compilation -5. Added `shared` to root `workspaces` array -6. Updated root build script to build shared first: `"build-shared": "cd shared && npm run build"` - -**Import Strategy:** - -- Workspaces import using package name: `@modelcontextprotocol/inspector-shared/mcp/types.js` -- No path mappings needed - npm workspaces resolve package name automatically -- TypeScript Project References ensure correct build ordering and type resolution - -**Build Process:** - -- Shared compiles to `shared/build/` with TypeScript declarations -- CLI and TUI reference shared via Project References -- Build order: `npm run build-shared` → `npm run build-cli` → `npm run build-tui` - -**React Version Alignment:** - -- Upgraded client from React 18.3.1 to React 19.2.3 (matching TUI) -- All Radix UI components support React 19 -- Single React 19.2.3 instance hoisted to root node_modules -- Shared code uses peer dependency pattern (consumers provide React) - -### 2.5 Status - -**Phase 2 is complete.** All MCP code has been moved to `shared/mcp/`, the React hook to `shared/react/`, and test fixtures to `shared/test/`. The `argsToMcpServerConfig()` function has been implemented. Shared is configured as a workspace package with TypeScript Project References. TUI and CLI successfully import from and use the shared code. React 19.2.3 is used consistently across all workspaces. - -## File-by-File Migration Guide - -### From mcp-inspect to inspector/tui - -| mcp-inspect | inspector/tui | Phase | Notes | -| --------------------------- | ------------------------------- | ----- | ---------------------------------------------------------------- | -| `tui.tsx` | `tui/tui.tsx` | 1 | Entry point, remove CLI mode handling | -| `src/App.tsx` | `tui/src/App.tsx` | 1 | Main TUI application | -| `src/components/*` | `tui/src/components/*` | 1 | All TUI components | -| `src/hooks/*` | `tui/src/hooks/*` | 1 | TUI-specific hooks | -| `src/types/*` | `tui/src/types/*` | 1 | TUI-specific types | -| `src/cli.ts` | **DELETE** | 1 | CLI functionality exists in `cli/src/index.ts` | -| `src/utils/transport.ts` | `shared/mcp/transport.ts` | 2 | Moved to `shared/mcp/` (Phase 2 complete) | -| `src/utils/config.ts` | `shared/mcp/config.ts` | 2 | Moved to `shared/mcp/` (Phase 2 complete) | -| `src/utils/client.ts` | **N/A** | 1 | Replaced by `InspectorClient` in `shared/mcp/inspectorClient.ts` | -| `src/utils/schemaToForm.ts` | `tui/src/utils/schemaToForm.ts` | 1 | TUI-specific (form generation), keep | - -### Code Sharing Strategy - -| Current Location | Phase 2 Status | Phase 3 Action | Notes | -| -------------------------------------------- | ------------------------------------------------------------------------------------------ | ---------------------------------------------- | -------------------------------------------------------- | -| `tui/src/mcp/inspectorClient.ts` | ✅ Moved to `shared/mcp/inspectorClient.ts` | CLI imports and uses | Main client wrapper, replaces CLI wrapper functions | -| `tui/src/mcp/transport.ts` | ✅ Moved to `shared/mcp/transport.ts` | CLI imports and uses | Transport creation from MCPServerConfig | -| `tui/src/mcp/config.ts` | ✅ Moved to `shared/mcp/config.ts` (with `argsToMcpServerConfig`) | CLI imports and uses | Config loading and argument conversion | -| `tui/src/mcp/types.ts` | ✅ Moved to `shared/mcp/types.ts` | CLI imports and uses | Shared types (MCPServerConfig, MessageEntry, etc.) | -| `tui/src/mcp/messageTrackingTransport.ts` | ✅ Moved to `shared/mcp/messageTrackingTransport.ts` | CLI imports (if needed) | Transport wrapper for message tracking | -| `tui/src/hooks/useInspectorClient.ts` | ✅ Moved to `shared/react/useInspectorClient.ts` | TUI imports from shared | React hook for InspectorClient | -| `cli/src/transport.ts` | Keep (temporary) | **Deprecated** (use `shared/mcp/transport.ts`) | Replaced by `shared/mcp/transport.ts` | -| `cli/src/client/connection.ts` | Keep (temporary) | **Deprecated** (use `InspectorClient`) | Replaced by `InspectorClient` | -| `cli/src/client/tools.ts` | ✅ Moved to `InspectorClient.listTools()`, `callTool()` | **Deleted** | Methods now in `InspectorClient` | -| `cli/src/client/resources.ts` | ✅ Moved to `InspectorClient.listResources()`, `readResource()`, `listResourceTemplates()` | **Deleted** | Methods now in `InspectorClient` | -| `cli/src/client/prompts.ts` | ✅ Moved to `InspectorClient.listPrompts()`, `getPrompt()` | **Deleted** | Methods now in `InspectorClient` | -| `cli/src/client/types.ts` | Keep (temporary) | **Deprecated** (use SDK types) | Use SDK types directly | -| `cli/src/index.ts::parseArgs()` | Keep CLI-specific | Keep CLI-specific | CLI-only argument parsing | -| `cli/__tests__/helpers/test-fixtures.ts` | ✅ Moved to `shared/test/test-server-fixtures.ts` (renamed) | CLI tests import from shared | Shared test server configs and definitions | -| `cli/__tests__/helpers/test-server-http.ts` | ✅ Moved to `shared/test/test-server-http.ts` | CLI tests import from shared | Shared test harness | -| `cli/__tests__/helpers/test-server-stdio.ts` | ✅ Moved to `shared/test/test-server-stdio.ts` | CLI tests import from shared | Shared test harness | -| `cli/__tests__/helpers/fixtures.ts` | Keep in CLI tests | Keep in CLI tests | CLI-specific test utilities (config file creation, etc.) | - -## Phase 3: Convert CLI to Use Shared Code ✅ COMPLETE - -Replace the CLI's direct MCP SDK usage with `InspectorClient` from `shared/mcp/`, consolidating client logic and leveraging the shared codebase. - -**Status**: Phase 3 is complete. The CLI now uses `InspectorClient` for all MCP operations, with a local `argsToMcpServerConfig()` function to convert CLI arguments to `MCPServerConfig`. The CLI helper functions (`tools.ts`, `resources.ts`, `prompts.ts`) have been moved into `InspectorClient` as methods (`listTools()`, `callTool()`, `listResources()`, `readResource()`, `listResourceTemplates()`, `listPrompts()`, `getPrompt()`, `setLoggingLevel()`), and the `cli/src/client/` directory has been removed. JSON utilities were extracted to `shared/json/jsonUtils.ts`. The CLI sets `autoFetchServerContents: false` (since it calls methods directly) and `initialLoggingLevel: "debug"` for consistent logging. The TUI's `ToolTestModal` has also been updated to use `InspectorClient.callTool()` instead of the SDK Client directly. All CLI tests pass with the new implementation. - -### 3.1 Current CLI Architecture - -The CLI currently: - -- Uses direct SDK `Client` instances (`new Client()`) -- Has its own `transport.ts` with `createTransport()` and `TransportOptions` -- Has `createTransportOptions()` function to convert CLI args to transport options -- Uses `client/*` utilities that wrap SDK methods (tools, resources, prompts, connection) -- Manages connection lifecycle manually (`connect()`, `disconnect()`) - -**Current files to be replaced/deprecated:** - -- `cli/src/transport.ts` - Replace with `shared/mcp/transport.ts` -- `cli/src/client/connection.ts` - Replace with `InspectorClient.connect()`/`disconnect()` -- `cli/src/client/tools.ts` - Update to use `InspectorClient.getClient()` -- `cli/src/client/resources.ts` - Update to use `InspectorClient.getClient()` -- `cli/src/client/prompts.ts` - Update to use `InspectorClient.getClient()` - -### 3.2 Conversion Strategy - -**Replace direct Client usage with InspectorClient:** - -1. **Replace transport creation:** - - ✅ Removed `createTransportOptions()` function - - ✅ Implemented local `argsToMcpServerConfig()` function in `cli/src/index.ts` that converts CLI `Args` to `MCPServerConfig` - - ✅ `InspectorClient` handles transport creation internally via `createTransportFromConfig()` - -2. **Replace connection management:** - - ✅ Replaced `new Client()` + `connect(client, transport)` with `new InspectorClient(config)` + `inspectorClient.connect()` - - ✅ Replaced `disconnect(transport)` with `inspectorClient.disconnect()` - -3. **Update client utilities:** - - ✅ Kept CLI-specific utility functions (`listTools`, `callTool`, etc.) - they still accept `Client` (SDK type) - - ✅ Utilities use `inspectorClient.getClient()` to access SDK methods - - ✅ This preserves the CLI's API while using shared code internally - -4. **Update main CLI flow:** - - ✅ In `callMethod()`, replaced transport/client setup with `InspectorClient` - - ✅ All method calls use utilities that work with `inspectorClient.getClient()` - - ✅ Configured `InspectorClient` with `autoFetchServerContents: false` (CLI calls methods directly) - - ✅ Configured `InspectorClient` with `initialLoggingLevel: "debug"` for consistent CLI logging - -### 3.3 Migration Steps - -1. **Update imports in `cli/src/index.ts`:** ✅ - - ✅ Import `InspectorClient` from `@modelcontextprotocol/inspector-shared/mcp/inspectorClient.js` - - ✅ Import `MCPServerConfig`, `StdioServerConfig`, `SseServerConfig`, `StreamableHttpServerConfig` types from `@modelcontextprotocol/inspector-shared/mcp/types.js` - - ✅ Import `LoggingLevel` and `LoggingLevelSchema` from SDK for log level validation - -2. **Replace transport creation:** ✅ - - ✅ Removed `createTransportOptions()` function - - ✅ Removed `createTransport()` import from `./transport.js` - - ✅ Implemented local `argsToMcpServerConfig()` function in `cli/src/index.ts` that: - - Takes CLI `Args` type directly - - Handles all CLI-specific conversions (URL detection, transport validation, `"http"` → `"streamable-http"` mapping) - - Returns `MCPServerConfig` for use with `InspectorClient` - - ✅ `InspectorClient` handles transport creation internally - -3. **Replace Client with InspectorClient:** ✅ - - ✅ Replaced `new Client(clientIdentity)` with `new InspectorClient(mcpServerConfig, options)` - - ✅ Replaced `connect(client, transport)` with `inspectorClient.connect()` - - ✅ Replaced `disconnect(transport)` with `inspectorClient.disconnect()` - - ✅ Configured `InspectorClient` with: - - `autoFetchServerContents: false` (CLI calls methods directly, no auto-fetching needed) - - `initialLoggingLevel: "debug"` (consistent CLI logging) - -4. **Update client utilities:** ✅ - - ✅ Moved CLI helper functions (`tools.ts`, `resources.ts`, `prompts.ts`) into `InspectorClient` as methods - - ✅ Added `listTools()`, `callTool()`, `listResources()`, `readResource()`, `listResourceTemplates()`, `listPrompts()`, `getPrompt()`, `setLoggingLevel()` methods to `InspectorClient` - - ✅ Extracted JSON conversion utilities to `shared/json/jsonUtils.ts` - - ✅ Deleted `cli/src/client/` directory entirely - - ✅ CLI now calls `inspectorClient.listTools()`, `inspectorClient.callTool()`, etc. directly - -5. **Update CLI argument conversion:** ✅ - - ✅ Local `argsToMcpServerConfig()` handles all CLI-specific logic: - - Detects URL vs. command - - Validates transport/URL combinations - - Auto-detects transport type from URL path (`/mcp` → streamable-http, `/sse` → SSE) - - Maps CLI's `"http"` to `"streamable-http"` - - Handles stdio command/args/env conversion - - ✅ All CLI argument combinations are correctly converted - -6. **Update tests:** ✅ - - ✅ CLI tests already use `@modelcontextprotocol/inspector-shared/test/` (done in Phase 2) - - ✅ Tests use `InspectorClient` via the CLI's `callMethod()` function - - ✅ All test scenarios pass - -7. **Cleanup:** - - ✅ Deleted `cli/src/client/` directory (tools.ts, resources.ts, prompts.ts, types.ts, index.ts) - - `cli/src/transport.ts` - Still exists but is no longer used (can be removed in future cleanup) - -8. **Test thoroughly:** ✅ - - ✅ All CLI methods tested (tools/list, tools/call, resources/list, resources/read, prompts/list, prompts/get, logging/setLevel) - - ✅ All transport types tested (stdio, SSE, streamable-http) - - ✅ CLI output format preserved (identical JSON) - - ✅ All CLI tests pass - -### 3.4 Example Conversion - -**Before (current):** - -```typescript -const transportOptions = createTransportOptions( - args.target, - args.transport, - args.headers, -); -const transport = createTransport(transportOptions); -const client = new Client(clientIdentity); -await connect(client, transport); -const result = await listTools(client, args.metadata); -await disconnect(transport); -``` - -**After (with shared code):** - -```typescript -// Local function in cli/src/index.ts converts CLI Args to MCPServerConfig -const config = argsToMcpServerConfig(args); // Handles all CLI-specific conversions - -const inspectorClient = new InspectorClient(config, { - clientIdentity, - autoFetchServerContents: false, // CLI calls methods directly - initialLoggingLevel: "debug", // Consistent CLI logging -}); - -await inspectorClient.connect(); -const result = await listTools(inspectorClient.getClient(), args.metadata); -await inspectorClient.disconnect(); -``` - -**Key differences:** - -- `argsToMcpServerConfig()` is a **local function** in `cli/src/index.ts` (not imported from shared) -- It takes CLI's `Args` type directly and handles all CLI-specific conversions internally -- `InspectorClient` is configured with `autoFetchServerContents: false` (CLI doesn't need auto-fetching) -- Client utilities still accept `Client` (SDK type) and use `inspectorClient.getClient()` to access it - -## Package.json Configuration - -### Root package.json - -```json -{ - "workspaces": ["client", "server", "cli", "tui", "shared"], - "bin": { - "mcp-inspector": "cli/build/cli.js" - }, - "files": [ - "client/bin", - "client/dist", - "server/build", - "cli/build", - "tui/build" - ], - "scripts": { - "build": "npm run build-shared && npm run build-server && npm run build-client && npm run build-cli && npm run build-tui", - "build-shared": "cd shared && npm run build", - "build-tui": "cd tui && npm run build", - "update-version": "node scripts/update-version.js", - "check-version": "node scripts/check-version-consistency.js" - } -} -``` - -**Note**: `shared/` is a workspace package but is not included in `files` array (it's internal-only, not published). - -**Note**: - -- TUI build artifacts (`tui/build`) are included in the `files` array for publishing, following the same approach as CLI -- TUI will use the same version number as CLI and web client. The version management scripts (`update-version.js` and `check-version-consistency.js`) will need to be updated to include TUI in the version synchronization process - -### tui/package.json - -```json -{ - "name": "@modelcontextprotocol/inspector-tui", - "version": "0.18.0", - "type": "module", - "main": "build/tui.js", - "bin": { - "mcp-inspector-tui": "./build/tui.js" - }, - "scripts": { - "build": "tsc", - "dev": "tsx tui.tsx" - }, - "dependencies": { - "@modelcontextprotocol/sdk": "^1.25.2", - "fullscreen-ink": "^0.1.0", - "ink": "^6.6.0", - "ink-form": "^2.0.1", - "ink-scroll-view": "^0.3.5", - "react": "^19.2.3" - }, - "devDependencies": { - "@types/node": "^25.0.3", - "@types/react": "^19.2.7", - "tsx": "^4.21.0", - "typescript": "^5.9.3" - } -} -``` - -**Note**: TUI and client both use React 19.2.3. React is hoisted to root node_modules, ensuring a single React instance across all workspaces. Shared package declares React as a peer dependency. - -### tui/tsconfig.json - -```json -{ - "compilerOptions": { - "target": "ES2022", - "module": "ESNext", - "moduleResolution": "node", - "jsx": "react", - "strict": true, - "esModuleInterop": true, - "skipLibCheck": true, - "forceConsistentCasingInFileNames": true, - "resolveJsonModule": true - }, - "include": ["src/**/*", "tui.tsx"], - "exclude": ["node_modules", "build"] -} -``` - -**Note**: No path mappings needed in Phase 1. In Phase 2, use direct relative imports instead of path mappings. - -## Entry Point Strategy - -The main `mcp-inspector` command will support a `--tui` flag to launch TUI mode: - -- `mcp-inspector --cli ...` → CLI mode -- `mcp-inspector --tui ...` → TUI mode -- `mcp-inspector ...` → Web client mode (default) - -This provides a single entry point with consistent argument parsing across all three UX modes. - -## Testing Strategy - -### Unit Tests - -- Test TUI components in isolation where possible -- Mock MCP client for TUI component tests -- Test shared utilities (transport, config) independently (when shared in Phase 2) - -### Integration Tests - -- **Use test harness servers**: Test TUI with test harness servers from `cli/__tests__/helpers/` - - `TestServerHttp` for HTTP/SSE transport testing - - `TestServerStdio` for stdio transport testing - - These servers are composable and support all transports -- Test config file loading and server selection -- Test all transport types (stdio, SSE, HTTP) using test servers -- Test shared code paths between CLI and TUI (Phase 2) - -### E2E Tests - -- Test full TUI workflows (connect, list tools, call tool, etc.) -- Test TUI with various server configurations using test harness servers -- Test TUI error handling and edge cases - -## Implementation Checklist - -### Phase 1: Initial Integration (Standalone TUI) - -- [x] Create `tui/` workspace directory -- [x] Set up `tui/package.json` with dependencies -- [x] Configure `tui/tsconfig.json` (no path mappings needed) -- [x] Copy TUI source files from mcp-inspect -- [x] **Remove CLI functionality**: Delete `src/cli.ts` from TUI -- [x] **Remove CLI mode**: Remove CLI mode handling from `tui.tsx` entry point -- [x] **Keep utilities**: Keep transport, config, client utilities in TUI (self-contained) -- [x] Add `--tui` flag to `cli/src/cli.ts` -- [x] Implement `runTui()` function in launcher -- [x] Update root `package.json` with tui workspace -- [x] Add build scripts for TUI -- [x] Update version management scripts (`update-version.js` and `check-version-consistency.js`) to include TUI -- [x] Test config file loading -- [x] Test server selection -- [x] Verify TUI works standalone without CLI dependencies - -### Phase 2: Extract MCP Module to Shared Directory - -- [x] Create `shared/` directory structure (not a workspace) -- [x] Create `shared/mcp/` subdirectory -- [x] Create `shared/react/` subdirectory -- [x] Create `shared/test/` subdirectory -- [x] Move MCP module from `tui/src/mcp/` to `shared/mcp/`: - - [x] `inspectorClient.ts` → `shared/mcp/inspectorClient.ts` - - [x] `transport.ts` → `shared/mcp/transport.ts` - - [x] `config.ts` → `shared/mcp/config.ts` - - [x] `types.ts` → `shared/mcp/types.ts` - - [x] `messageTrackingTransport.ts` → `shared/mcp/messageTrackingTransport.ts` - - [x] `client.ts` → `shared/mcp/client.ts` - - [x] `index.ts` → `shared/mcp/index.ts` -- [x] Add `argsToMcpServerConfig()` function to `shared/mcp/config.ts` -- [x] Move React hook from `tui/src/hooks/useInspectorClient.ts` to `shared/react/useInspectorClient.ts` -- [x] Move test fixtures from `cli/__tests__/helpers/` to `shared/test/`: - - [x] `test-fixtures.ts` → `shared/test/test-server-fixtures.ts` (renamed) - - [x] `test-server-http.ts` → `shared/test/test-server-http.ts` - - [x] `test-server-stdio.ts` → `shared/test/test-server-stdio.ts` -- [x] Update TUI imports to use `@modelcontextprotocol/inspector-shared/mcp/` and `@modelcontextprotocol/inspector-shared/react/` -- [x] Create `shared/package.json` as workspace package -- [x] Configure `shared/tsconfig.json` with composite and declaration -- [x] Add shared to root workspaces -- [x] Set React 19.2.3 as peer dependency in shared -- [x] Upgrade client to React 19.2.3 -- [x] Configure TypeScript Project References in CLI and TUI -- [x] Update root build script to build shared first -- [x] Update CLI test imports to use `@modelcontextprotocol/inspector-shared/test/` -- [x] Test TUI functionality (verify it still works with shared code) -- [x] Test CLI tests (verify test fixtures work from new location) -- [x] Update documentation - -### Phase 3: Convert CLI to Use Shared Code ✅ COMPLETE - -- [x] Update CLI imports to use `InspectorClient` from `@modelcontextprotocol/inspector-shared/mcp/inspectorClient.js` -- [x] Update CLI imports to use `MCPServerConfig` types from `@modelcontextprotocol/inspector-shared/mcp/types.js` -- [x] Implement local `argsToMcpServerConfig()` function in `cli/src/index.ts` that converts CLI `Args` to `MCPServerConfig` -- [x] Remove `createTransportOptions()` function -- [x] Remove `createTransport()` import and usage -- [x] Replace `new Client()` + `connect()` with `new InspectorClient()` + `connect()` -- [x] Replace `disconnect(transport)` with `inspectorClient.disconnect()` -- [x] Configure `InspectorClient` with `autoFetchServerContents: false` and `initialLoggingLevel: "debug"` -- [x] Move CLI helper functions to `InspectorClient` as methods (`listTools`, `callTool`, `listResources`, `readResource`, `listResourceTemplates`, `listPrompts`, `getPrompt`, `setLoggingLevel`) -- [x] Extract JSON utilities to `shared/json/jsonUtils.ts` -- [x] Delete `cli/src/client/` directory -- [x] Update TUI `ToolTestModal` to use `InspectorClient.callTool()` instead of SDK Client -- [x] Handle transport type mapping (`"http"` → `"streamable-http"`) in local `argsToMcpServerConfig()` -- [x] Handle URL detection and transport auto-detection in local `argsToMcpServerConfig()` -- [x] Update `validLogLevels` to use `LoggingLevelSchema.enum` from SDK -- [x] Test all CLI methods with all transport types -- [x] Verify CLI output format is preserved (identical JSON) -- [x] Run all CLI tests (all passing) -- [x] Update documentation diff --git a/docs/web-client-inspectorclient-analysis.md b/docs/web-client-inspectorclient-analysis.md deleted file mode 100644 index 9e82a2c95..000000000 --- a/docs/web-client-inspectorclient-analysis.md +++ /dev/null @@ -1,363 +0,0 @@ -# Web Client Integration with InspectorClient - Analysis - -## Current Web Client Architecture - -### `useConnection` Hook Responsibilities - -The web client's `useConnection` hook (`client/src/lib/hooks/useConnection.ts`) currently handles: - -1. **Connection Management** - - Connection status state (`disconnected`, `connecting`, `connected`, `error`, `error-connecting-to-proxy`) - - Direct vs. proxy connection modes - - Proxy health checking - -2. **Transport Creation** - - Creates SSE or StreamableHTTP transports directly - - Handles proxy mode (connects to proxy server endpoints) - - Handles direct mode (connects directly to MCP server) - - Manages transport options (headers, fetch wrappers, reconnection options) - -3. **OAuth Authentication** - - Browser-based OAuth flow (authorization code flow) - - OAuth token management via `InspectorOAuthClientProvider` - - Session storage for OAuth tokens - - OAuth callback handling - - Token refresh - -4. **Custom Headers** - - Custom header management (migration from legacy auth) - - Header validation - - OAuth token injection into headers - - Special header processing (`x-custom-auth-headers`) - -5. **Request/Response Tracking** - - Request history (`{ request: string, response?: string }[]`) - - History management (`pushHistory`, `clearRequestHistory`) - - Different format than InspectorClient's `MessageEntry[]` - -6. **Notification Handling** - - Notification handlers via callbacks (`onNotification`, `onStdErrNotification`) - - Multiple notification schemas (Cancelled, Logging, ResourceUpdated, etc.) - - Fallback notification handler - -7. **Request Handlers** - - Elicitation request handling (`onElicitationRequest`) - - Pending request handling (`onPendingRequest`) - - Roots request handling (`getRoots`) - -8. **Completion Support** - - Completion capability detection - - Completion state management - -9. **Progress Notifications** - - Progress notification handling - - Timeout reset on progress - -10. **Session Management** - - Session ID tracking (`mcpSessionId`) - - Protocol version tracking (`mcpProtocolVersion`) - - Response header capture - -11. **Server Information** - - Server capabilities - - Server implementation info - - Protocol version - -12. **Error Handling** - - Proxy auth errors - - OAuth errors - - Connection errors - - Retry logic - -### App.tsx State Management - -The main `App.tsx` component manages: - -- Resources, resource templates, resource content -- Prompts, prompt content -- Tools, tool results -- Errors per tab -- Connection configuration (command, args, sseUrl, transportType, etc.) -- OAuth configuration -- Custom headers -- Notifications -- Roots -- Environment variables -- Log level -- Active tab -- Pending requests -- And more... - -## InspectorClient Capabilities - -### What InspectorClient Provides - -1. **Connection Management** - - Connection status (`disconnected`, `connecting`, `connected`, `error`) - - `connect()` and `disconnect()` methods - - Automatic transport creation from `MCPServerConfig` - -2. **Message Tracking** - - Tracks all JSON-RPC messages (requests, responses, notifications) - - `MessageEntry[]` format with timestamps, direction, duration - - Event-driven updates (`message`, `messagesChange` events) - -3. **Stderr Logging** - - Captures stderr from stdio transports - - `StderrLogEntry[]` format - - Event-driven updates (`stderrLog`, `stderrLogsChange` events) - -4. **Server Data Management** - - Auto-fetches tools, resources, prompts (configurable) - - Caches capabilities, serverInfo, instructions - - Event-driven updates for all server data - -5. **High-Level Methods** - - `listTools()`, `callTool()` - with parameter conversion - - `listResources()`, `readResource()`, `listResourceTemplates()` - - `listPrompts()`, `getPrompt()` - with argument stringification - - `setLoggingLevel()` - with capability checks - -6. **Event-Driven Updates** - - EventTarget-based events (cross-platform) - - Events: `statusChange`, `connect`, `disconnect`, `error`, `toolsChange`, `resourcesChange`, `promptsChange`, `capabilitiesChange`, `serverInfoChange`, `instructionsChange`, `message`, `messagesChange`, `stderrLog`, `stderrLogsChange` - -7. **Transport Abstraction** - - Works with stdio, SSE, streamable-http - - Creates transports from `MCPServerConfig` - - Handles transport lifecycle - -### What InspectorClient Doesn't Provide - -1. **OAuth Authentication** - - No OAuth flow handling - - No token management - - No OAuth callback handling - -2. **Proxy Mode** - - Doesn't handle proxy server connections - - Doesn't handle proxy authentication - - Doesn't construct proxy URLs - -3. **Custom Headers** - - Doesn't support custom headers in transport creation - - Doesn't handle header validation - - Doesn't inject OAuth tokens into headers - -4. **Request History** - - Uses `MessageEntry[]` format (different from web client's `{ request: string, response?: string }[]`) - - Different tracking approach - -5. **Completion Support** - - No completion capability detection - - No completion state management - -6. **Elicitation Support** - - No elicitation request handling - -7. **Progress Notifications** - - No progress notification handling - - No timeout reset on progress - -8. **Session Management** - - No session ID tracking - - No protocol version tracking - -9. **Request Handlers** - - No support for setting request handlers (elicitation, pending requests, roots) - -10. **Direct vs. Proxy Mode** - - Doesn't distinguish between direct and proxy connections - - Doesn't handle proxy health checking - -## Integration Challenges - -### 1. OAuth Authentication - -**Challenge**: InspectorClient doesn't handle OAuth. The web client needs browser-based OAuth flow. - -**Options**: - -- **Option A**: Keep OAuth handling in web client, inject tokens into transport config -- **Option B**: Extend InspectorClient to accept OAuth provider/callback -- **Option C**: Create a web-specific wrapper around InspectorClient - -**Recommendation**: Option A - Keep OAuth in web client, pass tokens via custom headers in `MCPServerConfig`. - -### 2. Proxy Mode - -**Challenge**: InspectorClient doesn't handle proxy mode. Web client connects through proxy server. - -**Options**: - -- **Option A**: Extend `MCPServerConfig` to support proxy mode -- **Option B**: Create proxy-aware transport factory -- **Option C**: Keep proxy handling in web client, construct proxy URLs before creating InspectorClient - -**Recommendation**: Option C - Handle proxy URL construction in web client, pass final URL to InspectorClient. - -### 3. Custom Headers - -**Challenge**: InspectorClient's transport creation doesn't support custom headers. - -**Options**: - -- **Option A**: Extend `MCPServerConfig` to include custom headers -- **Option B**: Extend transport creation to accept headers -- **Option C**: Keep header handling in web client, pass via transport options - -**Recommendation**: Option A - Add `headers` to `SseServerConfig` and `StreamableHttpServerConfig` in `MCPServerConfig`. - -### 4. Request History Format - -**Challenge**: Web client uses `{ request: string, response?: string }[]`, InspectorClient uses `MessageEntry[]`. - -**Options**: - -- **Option A**: Convert InspectorClient messages to web client format -- **Option B**: Update web client to use `MessageEntry[]` format -- **Option C**: Keep both, use InspectorClient for new features - -**Recommendation**: Option B - Update web client to use `MessageEntry[]` format (more detailed, better for debugging). - -### 5. Completion Support - -**Challenge**: InspectorClient doesn't detect or manage completion support. - -**Options**: - -- **Option A**: Add completion support to InspectorClient -- **Option B**: Keep completion detection in web client -- **Option C**: Use capabilities to detect completion support - -**Recommendation**: Option C - Check `capabilities.completions` from InspectorClient's `getCapabilities()`. - -### 6. Elicitation Support - -**Challenge**: InspectorClient doesn't support request handlers (elicitation, pending requests, roots). - -**Options**: - -- **Option A**: Add request handler support to InspectorClient -- **Option B**: Access underlying SDK Client via `getClient()` to set handlers -- **Option C**: Keep elicitation handling in web client - -**Recommendation**: Option B - Use `inspectorClient.getClient()` to set request handlers (minimal change). - -### 7. Progress Notifications - -**Challenge**: InspectorClient doesn't handle progress notifications or timeout reset. - -**Options**: - -- **Option A**: Add progress notification handling to InspectorClient -- **Option B**: Handle progress in web client via notification callbacks -- **Option C**: Extend InspectorClient to support progress callbacks - -**Recommendation**: Option B - Handle progress via existing notification system (InspectorClient already tracks notifications). - -### 8. Session Management - -**Challenge**: InspectorClient doesn't track session ID or protocol version. - -**Options**: - -- **Option A**: Add session tracking to InspectorClient -- **Option B**: Track session in web client via transport access -- **Option C**: Extract from transport after connection - -**Recommendation**: Option B - Access transport via `inspectorClient.getClient()` to get session info. - -## Integration Strategy - -### Phase 1: Extend InspectorClient for Web Client Needs - -1. **Add Custom Headers Support** - - Add `headers?: Record` to `SseServerConfig` and `StreamableHttpServerConfig` - - Pass headers to transport creation - -2. **Add Request Handler Access** - - Document that `getClient()` can be used to set request handlers - - Or add convenience methods: `setRequestHandler()`, `setElicitationHandler()`, etc. - -3. **Add Progress Notification Support** - - Add `onProgress?: (progress: Progress) => void` to `InspectorClientOptions` - - Forward progress notifications to callback - -### Phase 2: Create Web-Specific Wrapper or Adapter - -**Option A: Web-Specific Hook** - -- Create `useInspectorClientWeb()` that wraps `useInspectorClient()` -- Handles OAuth, proxy mode, custom headers -- Converts between web client state and InspectorClient - -**Option B: Web Connection Adapter** - -- Create adapter that converts web client config to `MCPServerConfig` -- Handles proxy URL construction -- Manages OAuth token injection - -**Option C: Hybrid Approach** - -- Use `InspectorClient` for core MCP operations -- Keep `useConnection` for OAuth, proxy, and web-specific features -- Gradually migrate features to InspectorClient - -### Phase 3: Migrate Web Client to InspectorClient - -1. **Replace `useConnection` with `useInspectorClient`** - - Use `useInspectorClient` hook from shared package - - Handle OAuth and proxy in wrapper/adapter - - Convert request history format - -2. **Update App.tsx** - - Use InspectorClient state instead of useConnection state - - Update components to use new state format - - Migrate request history to MessageEntry format - -3. **Remove Duplicate Code** - - Remove `useConnection` hook - - Remove duplicate transport creation - - Remove duplicate server data fetching - -## Benefits of Integration - -1. **Code Reuse**: Share MCP client logic across TUI, CLI, and web client -2. **Consistency**: Same behavior across all three interfaces -3. **Maintainability**: Single source of truth for MCP operations -4. **Features**: Web client gets message tracking, stderr logging, event-driven updates -5. **Type Safety**: Shared types ensure consistency -6. **Testing**: Shared code is tested once, works everywhere - -## Risks and Considerations - -1. **Complexity**: Web client has many web-specific features (OAuth, proxy, custom headers) -2. **Breaking Changes**: Migration may require significant refactoring -3. **Testing**: Need to ensure all web client features still work -4. **Performance**: EventTarget events may have different performance characteristics -5. **Bundle Size**: Adding shared package increases bundle size (but code is already there) - -## Recommendation - -**Start with Option C (Hybrid Approach)**: - -1. **Short Term**: Keep `useConnection` for OAuth, proxy, and web-specific features -2. **Medium Term**: Use `InspectorClient` for core MCP operations (tools, resources, prompts) -3. **Long Term**: Gradually migrate to full `InspectorClient` integration - -This approach: - -- Minimizes risk (incremental migration) -- Allows testing at each step -- Preserves existing functionality -- Enables code sharing where it makes sense -- Provides path to full integration - -**Specific Next Steps**: - -1. Extend `MCPServerConfig` to support custom headers -2. Create adapter function to convert web client config to `MCPServerConfig` -3. Use `InspectorClient` for tools/resources/prompts operations (via `getClient()` initially) -4. Gradually migrate state management to `useInspectorClient` -5. Eventually replace `useConnection` with `useInspectorClient` + web-specific wrapper From 46447d1bc99236b1e2cbefee1474ac2f867b75a1 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Wed, 21 Jan 2026 10:37:46 -0800 Subject: [PATCH 22/44] Added diagrams to shared code doc. --- docs/inspector-client-details.svg | 52 ++++++++++++++++++ docs/shared-code-architecture.md | 6 +++ docs/shared-code-architecture.svg | 88 +++++++++++++++++++++++++++++++ 3 files changed, 146 insertions(+) create mode 100644 docs/inspector-client-details.svg create mode 100644 docs/shared-code-architecture.svg diff --git a/docs/inspector-client-details.svg b/docs/inspector-client-details.svg new file mode 100644 index 000000000..d0c9a6aaf --- /dev/null +++ b/docs/inspector-client-details.svg @@ -0,0 +1,52 @@ + + + + + + + + + + + InspectorClient + + + Implements all business logic for MCP client operations + Wraps MCP SDK Client and manages lifecycle + + + Core Responsibilities + + • + Client and Transport Lifecycle Management + + • + Message Tracking (all JSON-RPC messages) + + • + Stderr Logging (stdio transports) + + • + Server Data Management (tools, resources, prompts) + + • + Event-Driven Updates (EventTarget-based) + + • + State Management (connection status, history) + + • + Transport Abstraction (stdio, SSE, streamable-http) + + • + High-Level MCP Method Wrappers + diff --git a/docs/shared-code-architecture.md b/docs/shared-code-architecture.md index 330f9730f..f3d59491d 100644 --- a/docs/shared-code-architecture.md +++ b/docs/shared-code-architecture.md @@ -19,6 +19,10 @@ The shared code architecture addresses these issues by providing a single source ## Current Architecture +### Architecture Diagram + +![Shared Code Architecture](shared-code-architecture.svg) + ### Project Structure ``` @@ -63,6 +67,8 @@ The `shared/` directory is a **workspace package** that: - **Transport Abstraction**: Works with all `Transport` types (stdio, SSE, streamable-http) - **High-Level Methods**: Provides convenient wrappers for tools, resources, prompts, and logging +![InspectorClient Details](inspector-client-details.svg) + ### Key Features **Connection Management:** diff --git a/docs/shared-code-architecture.svg b/docs/shared-code-architecture.svg new file mode 100644 index 000000000..59189bc3b --- /dev/null +++ b/docs/shared-code-architecture.svg @@ -0,0 +1,88 @@ + + + + + + + + + + MCP Inspector Shared Code Architecture + + + + CLI + Workspace + + + TUI + Workspace + React + Ink + + + Web Client + Workspace + React + + + + Shared Package + @modelcontextprotocol/inspector-shared + + + + InspectorClient + Core Wrapper - Manages Client & Transport Lifecycle + + + + shared/mcp/ + MCP Client/Server + + + shared/react/ + React Hooks + + + shared/json/ + JSON Utils + + + shared/test/ + Test Fixtures + + + + MCP SDK + + Client + + Transports + + + + MCP Server + External + stdio/SSE/HTTP + + + + + + + + + + + + From 6abcd89f0d5d96f038e21e4f0d3d9a78cb0f93d0 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Wed, 21 Jan 2026 11:14:25 -0800 Subject: [PATCH 23/44] Support for HTTP request tracking (InspectorClient and TUI) --- shared/mcp/fetchTracking.ts | 144 +++++++++++ shared/mcp/index.ts | 1 + shared/mcp/inspectorClient.ts | 35 ++- shared/mcp/transport.ts | 35 ++- shared/mcp/types.ts | 15 ++ shared/react/useInspectorClient.ts | 21 ++ tui/src/App.tsx | 187 +++++++++++++- tui/src/components/RequestsTab.tsx | 386 +++++++++++++++++++++++++++++ tui/src/components/Tabs.tsx | 15 +- 9 files changed, 827 insertions(+), 12 deletions(-) create mode 100644 shared/mcp/fetchTracking.ts create mode 100644 tui/src/components/RequestsTab.tsx diff --git a/shared/mcp/fetchTracking.ts b/shared/mcp/fetchTracking.ts new file mode 100644 index 000000000..a443452c5 --- /dev/null +++ b/shared/mcp/fetchTracking.ts @@ -0,0 +1,144 @@ +import type { FetchRequestEntry } from "./types.js"; + +export interface FetchTrackingCallbacks { + trackRequest?: (entry: FetchRequestEntry) => void; +} + +/** + * Creates a fetch wrapper that tracks HTTP requests and responses + */ +export function createFetchTracker( + baseFetch: typeof fetch, + callbacks: FetchTrackingCallbacks, +): typeof fetch { + return async ( + input: RequestInfo | URL, + init?: RequestInit, + ): Promise => { + const startTime = Date.now(); + const timestamp = new Date(); + const id = `${timestamp.getTime()}-${Math.random().toString(36).substr(2, 9)}`; + + // Extract request information + const url = + typeof input === "string" + ? input + : input instanceof URL + ? input.toString() + : input.url; + const method = init?.method || "GET"; + + // Extract headers + const requestHeaders: Record = {}; + if (input instanceof Request) { + input.headers.forEach((value, key) => { + requestHeaders[key] = value; + }); + } + if (init?.headers) { + const headers = new Headers(init.headers); + headers.forEach((value, key) => { + requestHeaders[key] = value; + }); + } + + // Extract body (if present and readable) + let requestBody: string | undefined; + if (init?.body) { + if (typeof init.body === "string") { + requestBody = init.body; + } else if (init.body instanceof ReadableStream) { + // For streams, we can't read them without consuming, so we'll skip + requestBody = undefined; + } else { + try { + requestBody = String(init.body); + } catch { + requestBody = undefined; + } + } + } else if (input instanceof Request && input.body) { + // Try to clone and read the request body + try { + const cloned = input.clone(); + requestBody = await cloned.text(); + } catch { + // Can't read body, that's okay + requestBody = undefined; + } + } + + // Make the actual fetch request + let response: Response; + let error: string | undefined; + try { + response = await baseFetch(input, init); + } catch (err) { + error = err instanceof Error ? err.message : String(err); + // Create a minimal error entry + const entry: FetchRequestEntry = { + id, + timestamp, + method, + url, + requestHeaders, + requestBody, + error, + duration: Date.now() - startTime, + }; + callbacks.trackRequest?.(entry); + throw err; + } + + // Extract response information + const responseStatus = response.status; + const responseStatusText = response.statusText; + + // Extract response headers + const responseHeaders: Record = {}; + response.headers.forEach((value, key) => { + responseHeaders[key] = value; + }); + + // Try to read response body (clone so we don't consume it) + let responseBody: string | undefined; + const contentType = response.headers.get("content-type"); + const isStream = + contentType?.includes("text/event-stream") || + contentType?.includes("application/x-ndjson"); + + if (!isStream) { + try { + const cloned = response.clone(); + responseBody = await cloned.text(); + } catch { + // Can't read body (might be consumed or not readable) + responseBody = undefined; + } + } else { + // For streams, we can't read them without consuming, so we'll skip + responseBody = undefined; + } + + const duration = Date.now() - startTime; + + // Create entry and track it + const entry: FetchRequestEntry = { + id, + timestamp, + method, + url, + requestHeaders, + requestBody, + responseStatus, + responseStatusText, + responseHeaders, + responseBody, + duration, + }; + + callbacks.trackRequest?.(entry); + + return response; + }; +} diff --git a/shared/mcp/index.ts b/shared/mcp/index.ts index a44e81f5b..6cf882206 100644 --- a/shared/mcp/index.ts +++ b/shared/mcp/index.ts @@ -15,6 +15,7 @@ export type { ConnectionStatus, StderrLogEntry, MessageEntry, + FetchRequestEntry, ServerState, } from "./types.js"; diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index a53172d7c..f420bc4ab 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -4,6 +4,7 @@ import type { StderrLogEntry, ConnectionStatus, MessageEntry, + FetchRequestEntry, } from "./types.js"; import { createTransport, @@ -48,6 +49,12 @@ export interface InspectorClientOptions { */ maxStderrLogEvents?: number; + /** + * Maximum number of fetch requests to store (0 = unlimited, but not recommended) + * Only applies to HTTP-based transports (SSE, streamable-http) + */ + maxFetchRequests?: number; + /** * Whether to pipe stderr for stdio transports (default: true for TUI, false for CLI) */ @@ -79,8 +86,10 @@ export class InspectorClient extends EventTarget { private baseTransport: any = null; private messages: MessageEntry[] = []; private stderrLogs: StderrLogEntry[] = []; + private fetchRequests: FetchRequestEntry[] = []; private maxMessages: number; private maxStderrLogEvents: number; + private maxFetchRequests: number; private autoFetchServerContents: boolean; private initialLoggingLevel?: LoggingLevel; private status: ConnectionStatus = "disconnected"; @@ -99,6 +108,7 @@ export class InspectorClient extends EventTarget { super(); this.maxMessages = options.maxMessages ?? 1000; this.maxStderrLogEvents = options.maxStderrLogEvents ?? 1000; + this.maxFetchRequests = options.maxFetchRequests ?? 1000; this.autoFetchServerContents = options.autoFetchServerContents ?? true; this.initialLoggingLevel = options.initialLoggingLevel; @@ -150,12 +160,15 @@ export class InspectorClient extends EventTarget { }, }; - // Create transport with stderr logging if needed + // Create transport with stderr logging and fetch tracking if needed const transportOptions: CreateTransportOptions = { pipeStderr: options.pipeStderr ?? false, onStderr: (entry: StderrLogEntry) => { this.addStderrLog(entry); }, + onFetchRequest: (entry: FetchRequestEntry) => { + this.addFetchRequest(entry); + }, }; const { transport: baseTransport } = createTransport( @@ -755,4 +768,24 @@ export class InspectorClient extends EventTarget { this.dispatchEvent(new CustomEvent("stderrLog", { detail: entry })); this.dispatchEvent(new Event("stderrLogsChange")); } + + private addFetchRequest(entry: FetchRequestEntry): void { + if ( + this.maxFetchRequests > 0 && + this.fetchRequests.length >= this.maxFetchRequests + ) { + // Remove oldest fetch request + this.fetchRequests.shift(); + } + this.fetchRequests.push(entry); + this.dispatchEvent(new CustomEvent("fetchRequest", { detail: entry })); + this.dispatchEvent(new Event("fetchRequestsChange")); + } + + /** + * Get all fetch requests + */ + getFetchRequests(): FetchRequestEntry[] { + return [...this.fetchRequests]; + } } diff --git a/shared/mcp/transport.ts b/shared/mcp/transport.ts index 93cd44612..6f340405e 100644 --- a/shared/mcp/transport.ts +++ b/shared/mcp/transport.ts @@ -4,11 +4,13 @@ import type { SseServerConfig, StreamableHttpServerConfig, StderrLogEntry, + FetchRequestEntry, } from "./types.js"; import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; import { SSEClientTransport } from "@modelcontextprotocol/sdk/client/sse.js"; import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"; import type { Transport } from "@modelcontextprotocol/sdk/shared/transport.js"; +import { createFetchTracker } from "./fetchTracking.js"; export type ServerType = "stdio" | "sse" | "streamable-http"; @@ -46,6 +48,11 @@ export interface CreateTransportOptions { * Whether to pipe stderr for stdio transports (default: true for TUI, false for CLI) */ pipeStderr?: boolean; + + /** + * Optional callback to track HTTP fetch requests (for SSE and streamable-http transports) + */ + onFetchRequest?: (entry: import("./types.js").FetchRequestEntry) => void; } export interface CreateTransportResult { @@ -60,7 +67,7 @@ export function createTransport( options: CreateTransportOptions = {}, ): CreateTransportResult { const serverType = getServerType(config); - const { onStderr, pipeStderr = false } = options; + const { onStderr, pipeStderr = false, onFetchRequest } = options; if (serverType === "stdio") { const stdioConfig = config as StdioServerConfig; @@ -96,6 +103,15 @@ export function createTransport( ...(sseConfig.headers && { headers: sseConfig.headers }), }; + // Add fetch tracking if callback provided + if (onFetchRequest) { + const baseFetch = + (sseConfig.eventSourceInit?.fetch as typeof fetch) || globalThis.fetch; + eventSourceInit.fetch = createFetchTracker(baseFetch, { + trackRequest: onFetchRequest, + }); + } + const requestInit: RequestInit = { ...sseConfig.requestInit, ...(sseConfig.headers && { headers: sseConfig.headers }), @@ -118,9 +134,22 @@ export function createTransport( ...(httpConfig.headers && { headers: httpConfig.headers }), }; - const transport = new StreamableHTTPClientTransport(url, { + // Add fetch tracking if callback provided + const transportOptions: { + requestInit?: RequestInit; + fetch?: typeof fetch; + } = { requestInit, - }); + }; + + if (onFetchRequest) { + const baseFetch = globalThis.fetch; + transportOptions.fetch = createFetchTracker(baseFetch, { + trackRequest: onFetchRequest, + }); + } + + const transport = new StreamableHTTPClientTransport(url, transportOptions); return { transport }; } diff --git a/shared/mcp/types.ts b/shared/mcp/types.ts index dbb1ee488..9e327cdf7 100644 --- a/shared/mcp/types.ts +++ b/shared/mcp/types.ts @@ -66,6 +66,21 @@ export interface MessageEntry { duration?: number; // Time between request and response in ms } +export interface FetchRequestEntry { + id: string; + timestamp: Date; + method: string; + url: string; + requestHeaders: Record; + requestBody?: string; + responseStatus?: number; + responseStatusText?: string; + responseHeaders?: Record; + responseBody?: string; + duration?: number; // Time between request and response in ms + error?: string; +} + export interface ServerState { status: ConnectionStatus; error: string | null; diff --git a/shared/react/useInspectorClient.ts b/shared/react/useInspectorClient.ts index cf48ffd13..5a6dca708 100644 --- a/shared/react/useInspectorClient.ts +++ b/shared/react/useInspectorClient.ts @@ -4,6 +4,7 @@ import type { ConnectionStatus, StderrLogEntry, MessageEntry, + FetchRequestEntry, } from "../mcp/index.js"; import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; import type { @@ -18,6 +19,7 @@ export interface UseInspectorClientResult { status: ConnectionStatus; messages: MessageEntry[]; stderrLogs: StderrLogEntry[]; + fetchRequests: FetchRequestEntry[]; tools: any[]; resources: any[]; prompts: any[]; @@ -44,6 +46,9 @@ export function useInspectorClient( const [stderrLogs, setStderrLogs] = useState( inspectorClient?.getStderrLogs() ?? [], ); + const [fetchRequests, setFetchRequests] = useState( + inspectorClient?.getFetchRequests() ?? [], + ); const [tools, setTools] = useState(inspectorClient?.getTools() ?? []); const [resources, setResources] = useState( inspectorClient?.getResources() ?? [], @@ -67,6 +72,7 @@ export function useInspectorClient( setStatus("disconnected"); setMessages([]); setStderrLogs([]); + setFetchRequests([]); setTools([]); setResources([]); setPrompts([]); @@ -80,6 +86,7 @@ export function useInspectorClient( setStatus(inspectorClient.getStatus()); setMessages(inspectorClient.getMessages()); setStderrLogs(inspectorClient.getStderrLogs()); + setFetchRequests(inspectorClient.getFetchRequests()); setTools(inspectorClient.getTools()); setResources(inspectorClient.getResources()); setPrompts(inspectorClient.getPrompts()); @@ -105,6 +112,11 @@ export function useInspectorClient( setStderrLogs(inspectorClient.getStderrLogs()); }; + const onFetchRequestsChange = () => { + // fetchRequestsChange doesn't include payload, so we fetch + setFetchRequests(inspectorClient.getFetchRequests()); + }; + const onToolsChange = (event: Event) => { const customEvent = event as CustomEvent; setTools(customEvent.detail); @@ -139,6 +151,10 @@ export function useInspectorClient( inspectorClient.addEventListener("statusChange", onStatusChange); inspectorClient.addEventListener("messagesChange", onMessagesChange); inspectorClient.addEventListener("stderrLogsChange", onStderrLogsChange); + inspectorClient.addEventListener( + "fetchRequestsChange", + onFetchRequestsChange, + ); inspectorClient.addEventListener("toolsChange", onToolsChange); inspectorClient.addEventListener("resourcesChange", onResourcesChange); inspectorClient.addEventListener("promptsChange", onPromptsChange); @@ -160,6 +176,10 @@ export function useInspectorClient( "stderrLogsChange", onStderrLogsChange, ); + inspectorClient.removeEventListener( + "fetchRequestsChange", + onFetchRequestsChange, + ); inspectorClient.removeEventListener("toolsChange", onToolsChange); inspectorClient.removeEventListener("resourcesChange", onResourcesChange); inspectorClient.removeEventListener("promptsChange", onPromptsChange); @@ -192,6 +212,7 @@ export function useInspectorClient( status, messages, stderrLogs, + fetchRequests, tools, resources, prompts, diff --git a/tui/src/App.tsx b/tui/src/App.tsx index 68499e56a..c2819d59d 100644 --- a/tui/src/App.tsx +++ b/tui/src/App.tsx @@ -3,7 +3,10 @@ import { Box, Text, useInput, useApp, type Key } from "ink"; import { readFileSync } from "fs"; import { fileURLToPath } from "url"; import { dirname, join } from "path"; -import type { MessageEntry } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; +import type { + MessageEntry, + FetchRequestEntry, +} from "@modelcontextprotocol/inspector-shared/mcp/index.js"; import { loadMcpServersConfig } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; import { InspectorClient } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; import { useInspectorClient } from "@modelcontextprotocol/inspector-shared/react/useInspectorClient.js"; @@ -14,6 +17,7 @@ import { PromptsTab } from "./components/PromptsTab.js"; import { ToolsTab } from "./components/ToolsTab.js"; import { NotificationsTab } from "./components/NotificationsTab.js"; import { HistoryTab } from "./components/HistoryTab.js"; +import { RequestsTab } from "./components/RequestsTab.js"; import { ToolTestModal } from "./components/ToolTestModal.js"; import { DetailsModal } from "./components/DetailsModal.js"; @@ -55,7 +59,10 @@ type FocusArea = | "tabContentDetails" // Used only when activeTab === 'messages' | "messagesList" - | "messagesDetail"; + | "messagesDetail" + // Used only when activeTab === 'requests' + | "requestsList" + | "requestsDetail"; interface AppProps { configFile: string; @@ -73,6 +80,7 @@ function App({ configFile }: AppProps) { prompts?: number; tools?: number; messages?: number; + requests?: number; logging?: number; }>({}); @@ -139,6 +147,7 @@ function App({ configFile }: AppProps) { newClients[serverName] = new InspectorClient(serverConfig, { maxMessages: 1000, maxStderrLogEvents: 1000, + maxFetchRequests: 1000, pipeStderr: true, }); } @@ -179,6 +188,7 @@ function App({ configFile }: AppProps) { status: inspectorStatus, messages: inspectorMessages, stderrLogs: inspectorStderrLogs, + fetchRequests: inspectorFetchRequests, tools: inspectorTools, resources: inspectorResources, prompts: inspectorPrompts, @@ -352,6 +362,119 @@ function App({ configFile }: AppProps) { ); + const renderRequestDetails = (request: FetchRequestEntry) => ( + <> + + + {request.method} {request.url} + + + {request.responseStatus !== undefined ? ( + + + Status: {request.responseStatus} {request.responseStatusText || ""} + + + ) : request.error ? ( + + + Error: {request.error} + + + ) : null} + {request.duration !== undefined && ( + + Duration: {request.duration}ms + + )} + + Request Headers: + {Object.entries(request.requestHeaders).map(([key, value]) => ( + + + {key}: {value} + + + ))} + + {request.requestBody && ( + <> + + Request Body: + + {(() => { + try { + const parsed = JSON.parse(request.requestBody); + return JSON.stringify(parsed, null, 2) + .split("\n") + .map((line: string, idx: number) => ( + + {line} + + )); + } catch { + return ( + + {request.requestBody} + + ); + } + })()} + + )} + {request.responseHeaders && + Object.keys(request.responseHeaders).length > 0 && ( + <> + + Response Headers: + + {Object.entries(request.responseHeaders).map(([key, value]) => ( + + + {key}: {value} + + + ))} + + )} + {request.responseBody && ( + <> + + Response Body: + + {(() => { + try { + const parsed = JSON.parse(request.responseBody); + return JSON.stringify(parsed, null, 2) + .split("\n") + .map((line: string, idx: number) => ( + + {line} + + )); + } catch { + return ( + + {request.responseBody} + + ); + } + })()} + + )} + + ); + const renderMessageDetails = (message: MessageEntry) => ( <> @@ -406,6 +529,7 @@ function App({ configFile }: AppProps) { prompts: inspectorPrompts.length || 0, tools: inspectorTools.length || 0, messages: inspectorMessages.length || 0, + requests: inspectorFetchRequests.length || 0, logging: inspectorStderrLogs.length || 0, }); }, [ @@ -414,6 +538,7 @@ function App({ configFile }: AppProps) { inspectorPrompts, inspectorTools, inspectorMessages, + inspectorFetchRequests, inspectorStderrLogs, ]); @@ -423,8 +548,17 @@ function App({ configFile }: AppProps) { if (focus === "tabContentList" || focus === "tabContentDetails") { setFocus("messagesList"); } + } else if (activeTab === "requests") { + if (focus === "tabContentList" || focus === "tabContentDetails") { + setFocus("requestsList"); + } } else { - if (focus === "messagesList" || focus === "messagesDetail") { + if ( + focus === "messagesList" || + focus === "messagesDetail" || + focus === "requestsList" || + focus === "requestsDetail" + ) { setFocus("tabContentList"); } } @@ -472,7 +606,9 @@ function App({ configFile }: AppProps) { const focusOrder: FocusArea[] = activeTab === "messages" ? ["serverList", "tabs", "messagesList", "messagesDetail"] - : ["serverList", "tabs", "tabContentList", "tabContentDetails"]; + : activeTab === "requests" + ? ["serverList", "tabs", "requestsList", "requestsDetail"] + : ["serverList", "tabs", "tabContentList", "tabContentDetails"]; const currentIndex = focusOrder.indexOf(focus); const nextIndex = (currentIndex + 1) % focusOrder.length; setFocus(focusOrder[nextIndex]); @@ -481,7 +617,9 @@ function App({ configFile }: AppProps) { const focusOrder: FocusArea[] = activeTab === "messages" ? ["serverList", "tabs", "messagesList", "messagesDetail"] - : ["serverList", "tabs", "tabContentList", "tabContentDetails"]; + : activeTab === "requests" + ? ["serverList", "tabs", "requestsList", "requestsDetail"] + : ["serverList", "tabs", "tabContentList", "tabContentDetails"]; const currentIndex = focusOrder.indexOf(focus); const prevIndex = currentIndex > 0 ? currentIndex - 1 : focusOrder.length - 1; @@ -521,6 +659,7 @@ function App({ configFile }: AppProps) { "prompts", "tools", "messages", + "requests", "logging", ]; const currentIndex = tabs.indexOf(activeTab); @@ -733,6 +872,17 @@ function App({ configFile }: AppProps) { ? inspectorClients[selectedServer].getServerType() === "stdio" : false } + showRequests={ + selectedServer && inspectorClients[selectedServer] + ? (() => { + const serverType = + inspectorClients[selectedServer].getServerType(); + return ( + serverType === "sse" || serverType === "streamable-http" + ); + })() + : false + } /> {/* Tab Content */} @@ -877,6 +1027,33 @@ function App({ configFile }: AppProps) { }); }} /> + ) : activeTab === "requests" && + selectedInspectorClient && + (inspectorStatus === "connected" || + inspectorFetchRequests.length > 0) ? ( + + setTabCounts((prev) => ({ ...prev, requests: count })) + } + focusedPane={ + focus === "requestsDetail" + ? "details" + : focus === "requestsList" + ? "requests" + : null + } + modalOpen={!!(toolTestModal || detailsModal)} + onViewDetails={(request) => { + setDetailsModal({ + title: `Request: ${request.method} ${request.url}`, + content: renderRequestDetails(request), + }); + }} + /> ) : activeTab === "logging" && selectedInspectorClient ? ( void; + focusedPane?: "requests" | "details" | null; + onViewDetails?: (request: FetchRequestEntry) => void; + modalOpen?: boolean; +} + +export function RequestsTab({ + serverName, + requests, + width, + height, + onCountChange, + focusedPane = null, + onViewDetails, + modalOpen = false, +}: RequestsTabProps) { + const [selectedIndex, setSelectedIndex] = useState(0); + const [leftScrollOffset, setLeftScrollOffset] = useState(0); + const scrollViewRef = useRef(null); + + // Calculate visible area for left pane (accounting for header) + const leftPaneHeight = height - 2; // Subtract header space + const visibleRequests = requests.slice( + leftScrollOffset, + leftScrollOffset + leftPaneHeight, + ); + + const selectedRequest = requests[selectedIndex] || null; + + // Handle arrow key navigation and scrolling when focused + useInput( + (input: string, key: Key) => { + if (focusedPane === "requests") { + if (key.upArrow) { + if (selectedIndex > 0) { + const newIndex = selectedIndex - 1; + setSelectedIndex(newIndex); + // Auto-scroll if selection goes above visible area + if (newIndex < leftScrollOffset) { + setLeftScrollOffset(newIndex); + } + } + } else if (key.downArrow) { + if (selectedIndex < requests.length - 1) { + const newIndex = selectedIndex + 1; + setSelectedIndex(newIndex); + // Auto-scroll if selection goes below visible area + if (newIndex >= leftScrollOffset + leftPaneHeight) { + setLeftScrollOffset(Math.max(0, newIndex - leftPaneHeight + 1)); + } + } + } else if (key.pageUp) { + setLeftScrollOffset(Math.max(0, leftScrollOffset - leftPaneHeight)); + setSelectedIndex(Math.max(0, selectedIndex - leftPaneHeight)); + } else if (key.pageDown) { + const maxScroll = Math.max(0, requests.length - leftPaneHeight); + setLeftScrollOffset( + Math.min(maxScroll, leftScrollOffset + leftPaneHeight), + ); + setSelectedIndex( + Math.min(requests.length - 1, selectedIndex + leftPaneHeight), + ); + } + return; + } + + // details scrolling (only when details pane is focused) + if (focusedPane === "details") { + // Handle '+' key to view in full screen modal + if (input === "+" && selectedRequest && onViewDetails) { + onViewDetails(selectedRequest); + return; + } + + if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } + } + }, + { isActive: !modalOpen && focusedPane !== undefined }, + ); + + // Update count when requests change + React.useEffect(() => { + onCountChange?.(requests.length); + // eslint-disable-next-line react-hooks/exhaustive-deps + }, [requests.length]); + + // Reset selection when requests change + useEffect(() => { + if (selectedIndex >= requests.length) { + setSelectedIndex(Math.max(0, requests.length - 1)); + } + }, [requests.length, selectedIndex]); + + // Reset scroll when request selection changes + useEffect(() => { + scrollViewRef.current?.scrollTo(0); + }, [selectedIndex]); + + const listWidth = Math.floor(width * 0.4); + const detailWidth = width - listWidth; + + const getStatusColor = (status?: number): string => { + if (!status) return "gray"; + if (status >= 200 && status < 300) return "green"; + if (status >= 300 && status < 400) return "yellow"; + if (status >= 400) return "red"; + return "gray"; + }; + + return ( + + {/* Left column - Requests list */} + + + + Requests ({requests.length}) + + + + {/* Requests list */} + {requests.length === 0 ? ( + + No requests + + ) : ( + + {visibleRequests.map((req, visibleIndex) => { + const actualIndex = leftScrollOffset + visibleIndex; + const isSelected = actualIndex === selectedIndex; + const statusColor = getStatusColor(req.responseStatus); + const statusText = req.responseStatus + ? `${req.responseStatus}` + : req.error + ? "ERROR" + : "..."; + + return ( + + + {isSelected ? "▶ " : " "} + {req.method}{" "} + {statusText} + {req.duration !== undefined && ( + {req.duration}ms + )} + + + ); + })} + + )} + + + {/* Right column - Request details */} + + {selectedRequest ? ( + <> + {/* Fixed header */} + + + {selectedRequest.method} {selectedRequest.url} + + + {selectedRequest.timestamp.toLocaleTimeString()} + + + + {/* Scrollable content area */} + + {/* Status */} + {selectedRequest.responseStatus !== undefined ? ( + + + Status:{" "} + + {selectedRequest.responseStatus}{" "} + {selectedRequest.responseStatusText || ""} + + + + ) : selectedRequest.error ? ( + + + Error: {selectedRequest.error} + + + ) : ( + + + Request in progress... + + + )} + + {/* Duration */} + {selectedRequest.duration !== undefined && ( + + Duration: {selectedRequest.duration}ms + + )} + + {/* Request Headers */} + + Request Headers: + + {Object.entries(selectedRequest.requestHeaders).map( + ([key, value]) => ( + + + {key}: {value} + + + ), + )} + + {/* Request Body */} + {selectedRequest.requestBody && ( + <> + + Request Body: + + {(() => { + try { + const parsed = JSON.parse(selectedRequest.requestBody); + return JSON.stringify(parsed, null, 2) + .split("\n") + .map((line: string, idx: number) => ( + + {line} + + )); + } catch { + return ( + + {selectedRequest.requestBody} + + ); + } + })()} + + )} + + {/* Response Headers */} + {selectedRequest.responseHeaders && + Object.keys(selectedRequest.responseHeaders).length > 0 && ( + <> + + Response Headers: + + {Object.entries(selectedRequest.responseHeaders).map( + ([key, value]) => ( + + + {key}: {value} + + + ), + )} + + )} + + {/* Response Body */} + {selectedRequest.responseBody && ( + <> + + Response Body: + + {(() => { + try { + const parsed = JSON.parse(selectedRequest.responseBody); + return JSON.stringify(parsed, null, 2) + .split("\n") + .map((line: string, idx: number) => ( + + {line} + + )); + } catch { + return ( + + {selectedRequest.responseBody} + + ); + } + })()} + + )} + + + {/* Fixed footer - only show when details pane is focused */} + {focusedPane === "details" && ( + + + ↑/↓ to scroll, + to zoom + + + )} + + ) : ( + + Select a request to view details + + )} + + + ); +} diff --git a/tui/src/components/Tabs.tsx b/tui/src/components/Tabs.tsx index 681037221..bfef99e72 100644 --- a/tui/src/components/Tabs.tsx +++ b/tui/src/components/Tabs.tsx @@ -7,6 +7,7 @@ export type TabType = | "prompts" | "tools" | "messages" + | "requests" | "logging"; interface TabsProps { @@ -19,10 +20,12 @@ interface TabsProps { prompts?: number; tools?: number; messages?: number; + requests?: number; logging?: number; }; focused?: boolean; showLogging?: boolean; + showRequests?: boolean; } export const tabs: { id: TabType; label: string; accelerator: string }[] = [ @@ -31,6 +34,7 @@ export const tabs: { id: TabType; label: string; accelerator: string }[] = [ { id: "prompts", label: "Prompts", accelerator: "p" }, { id: "tools", label: "Tools", accelerator: "t" }, { id: "messages", label: "Messages", accelerator: "m" }, + { id: "requests", label: "HTTP Requests", accelerator: "h" }, { id: "logging", label: "Logging", accelerator: "l" }, ]; @@ -41,10 +45,15 @@ export function Tabs({ counts = {}, focused = false, showLogging = true, + showRequests = false, }: TabsProps) { - const visibleTabs = showLogging - ? tabs - : tabs.filter((tab) => tab.id !== "logging"); + let visibleTabs = tabs; + if (!showLogging) { + visibleTabs = visibleTabs.filter((tab) => tab.id !== "logging"); + } + if (!showRequests) { + visibleTabs = visibleTabs.filter((tab) => tab.id !== "requests"); + } return ( Date: Wed, 21 Jan 2026 15:54:50 -0800 Subject: [PATCH 24/44] Enhance testing and server functionality: Added new tests for shared components, updated CLI tests to streamline server start process, and improved test server SSE support. Updated package dependencies and scripts for new testing support. --- cli/__tests__/cli.test.ts | 30 +- cli/__tests__/headers.test.ts | 24 +- cli/__tests__/metadata.test.ts | 158 +++-- package-lock.json | 5 +- package.json | 1 + shared/__tests__/inspectorClient.test.ts | 756 +++++++++++++++++++++++ shared/__tests__/jsonUtils.test.ts | 124 ++++ shared/__tests__/transport.test.ts | 191 ++++++ shared/mcp/fetchTracking.ts | 45 +- shared/package.json | 11 +- shared/test/test-server-fixtures.ts | 2 + shared/test/test-server-http.ts | 109 +++- shared/test/test-server-stdio.ts | 6 +- shared/tsconfig.json | 9 +- shared/vitest.config.ts | 10 + 15 files changed, 1307 insertions(+), 174 deletions(-) create mode 100644 shared/__tests__/inspectorClient.test.ts create mode 100644 shared/__tests__/jsonUtils.test.ts create mode 100644 shared/__tests__/transport.test.ts create mode 100644 shared/vitest.config.ts diff --git a/cli/__tests__/cli.test.ts b/cli/__tests__/cli.test.ts index c8d6d862e..15a9bc387 100644 --- a/cli/__tests__/cli.test.ts +++ b/cli/__tests__/cli.test.ts @@ -370,11 +370,9 @@ describe("CLI Tests", () => { }); try { - const port = await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + const port = await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "logging/setLevel", @@ -741,11 +739,9 @@ describe("CLI Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/list", @@ -768,11 +764,9 @@ describe("CLI Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--transport", "http", "--cli", @@ -797,11 +791,9 @@ describe("CLI Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--transport", "http", "--cli", @@ -826,11 +818,9 @@ describe("CLI Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--transport", "sse", "--cli", diff --git a/cli/__tests__/headers.test.ts b/cli/__tests__/headers.test.ts index 910f5f973..7f7d9b496 100644 --- a/cli/__tests__/headers.test.ts +++ b/cli/__tests__/headers.test.ts @@ -20,11 +20,9 @@ describe("Header Parsing and Validation", () => { }); try { - const port = await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + const port = await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/list", @@ -60,11 +58,9 @@ describe("Header Parsing and Validation", () => { }); try { - const port = await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + const port = await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/list", @@ -95,11 +91,9 @@ describe("Header Parsing and Validation", () => { }); try { - const port = await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + const port = await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/list", @@ -129,11 +123,9 @@ describe("Header Parsing and Validation", () => { }); try { - const port = await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + const port = await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/list", diff --git a/cli/__tests__/metadata.test.ts b/cli/__tests__/metadata.test.ts index e15d58f0b..98886d0be 100644 --- a/cli/__tests__/metadata.test.ts +++ b/cli/__tests__/metadata.test.ts @@ -22,11 +22,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/list", @@ -65,11 +63,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "resources/list", @@ -109,11 +105,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "prompts/list", @@ -154,11 +148,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "resources/read", @@ -198,11 +190,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "prompts/get", @@ -239,11 +229,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/call", @@ -280,11 +268,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/call", @@ -324,11 +310,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/call", @@ -371,11 +355,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/list", @@ -412,11 +394,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/list", @@ -453,11 +433,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/list", @@ -496,11 +474,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/list", @@ -533,11 +509,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/list", @@ -612,11 +586,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/call", @@ -661,11 +633,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "resources/list", @@ -703,11 +673,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "prompts/get", @@ -744,11 +712,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/call", @@ -791,11 +757,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/list", @@ -830,11 +794,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/call", @@ -884,11 +846,9 @@ describe("Metadata Tests", () => { }); try { - await server.start("http"); - const serverUrl = `${server.getUrl()}/mcp`; - + await server.start(); const result = await runCli([ - serverUrl, + server.url, "--cli", "--method", "tools/call", @@ -930,4 +890,42 @@ describe("Metadata Tests", () => { } }); }); + + describe("SSE Transport Tests", () => { + it("should work with tools/list using SSE transport", async () => { + const server = createTestServerHttp({ + serverType: "sse", + serverInfo: createTestServerInfo(), + tools: [createEchoTool()], + }); + + try { + await server.start(); + const result = await runCli([ + server.url, + "--cli", + "--method", + "tools/list", + "--metadata", + "client=test-client", + "--transport", + "sse", + ]); + + expectCliSuccess(result); + const json = expectValidJson(result); + expect(json).toHaveProperty("tools"); + + // Validate metadata was sent + const recordedRequests = server.getRecordedRequests(); + const toolsListRequest = recordedRequests.find( + (r) => r.method === "tools/list", + ); + expect(toolsListRequest).toBeDefined(); + expect(toolsListRequest?.metadata).toEqual({ client: "test-client" }); + } finally { + await server.stop(); + } + }); + }); }); diff --git a/package-lock.json b/package-lock.json index 9e9f19236..8e7f2aa90 100644 --- a/package-lock.json +++ b/package-lock.json @@ -13573,11 +13573,14 @@ "name": "@modelcontextprotocol/inspector-shared", "version": "0.18.0", "devDependencies": { + "@modelcontextprotocol/sdk": "^1.25.2", "@types/react": "^19.2.7", "react": "^19.2.3", - "typescript": "^5.4.2" + "typescript": "^5.4.2", + "vitest": "^4.0.17" }, "peerDependencies": { + "@modelcontextprotocol/sdk": "^1.25.2", "react": "^19.2.3" } }, diff --git a/package.json b/package.json index f59ae8def..d18918ab3 100644 --- a/package.json +++ b/package.json @@ -42,6 +42,7 @@ "start-client": "cd client && npm run preview", "test": "npm run prettier-check && cd client && npm test", "test-cli": "cd cli && npm run test", + "test-shared": "cd shared && npm run test", "test:e2e": "MCP_AUTO_OPEN_ENABLED=false npm run test:e2e --workspace=client", "prettier-fix": "prettier --write .", "prettier-check": "prettier --check .", diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts new file mode 100644 index 000000000..680fa4464 --- /dev/null +++ b/shared/__tests__/inspectorClient.test.ts @@ -0,0 +1,756 @@ +import { describe, it, expect, beforeEach, afterEach } from "vitest"; +import { InspectorClient } from "../mcp/inspectorClient.js"; +import { getTestMcpServerCommand } from "../test/test-server-stdio.js"; +import { + createTestServerHttp, + type TestServerHttp, +} from "../test/test-server-http.js"; +import { + createEchoTool, + createTestServerInfo, +} from "../test/test-server-fixtures.js"; +import type { MessageEntry } from "../mcp/types.js"; + +describe("InspectorClient", () => { + let client: InspectorClient; + let server: TestServerHttp | null; + let serverCommand: { command: string; args: string[] }; + + beforeEach(() => { + serverCommand = getTestMcpServerCommand(); + server = null; + }); + + afterEach(async () => { + if (client) { + try { + await client.disconnect(); + } catch { + // Ignore disconnect errors + } + client = null as any; + } + if (server) { + try { + await server.stop(); + } catch { + // Ignore server stop errors + } + server = null; + } + }); + + describe("Connection Management", () => { + it("should create client with stdio transport", () => { + client = new InspectorClient({ + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }); + + expect(client.getStatus()).toBe("disconnected"); + expect(client.getServerType()).toBe("stdio"); + }); + + it("should connect to server", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + expect(client.getStatus()).toBe("connected"); + }); + + it("should disconnect from server", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + expect(client.getStatus()).toBe("connected"); + + await client.disconnect(); + expect(client.getStatus()).toBe("disconnected"); + }); + + it("should clear server state on disconnect", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: true, + }, + ); + + await client.connect(); + expect(client.getTools().length).toBeGreaterThan(0); + + await client.disconnect(); + expect(client.getTools().length).toBe(0); + expect(client.getResources().length).toBe(0); + expect(client.getPrompts().length).toBe(0); + }); + + it("should clear messages on connect", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + // Make a request to generate messages + await client.listTools(); + const firstConnectMessages = client.getMessages(); + expect(firstConnectMessages.length).toBeGreaterThan(0); + + // Disconnect and reconnect + await client.disconnect(); + await client.connect(); + // After reconnect, messages should be cleared, but connect() itself creates new messages (initialize) + // So we should have messages from the new connection, but not from the old one + const secondConnectMessages = client.getMessages(); + // The new connection should have at least the initialize message + expect(secondConnectMessages.length).toBeGreaterThan(0); + // But the first message should be from the new connection (check timestamp) + if (firstConnectMessages.length > 0 && secondConnectMessages.length > 0) { + const lastFirstMessage = + firstConnectMessages[firstConnectMessages.length - 1]; + const firstSecondMessage = secondConnectMessages[0]; + if (lastFirstMessage && firstSecondMessage) { + expect(firstSecondMessage.timestamp.getTime()).toBeGreaterThanOrEqual( + lastFirstMessage.timestamp.getTime(), + ); + } + } + }); + }); + + describe("Message Tracking", () => { + it("should track requests", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + await client.listTools(); + + const messages = client.getMessages(); + expect(messages.length).toBeGreaterThan(0); + const request = messages.find((m) => m.direction === "request"); + expect(request).toBeDefined(); + if (request) { + expect("method" in request.message).toBe(true); + } + }); + + it("should track responses", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + await client.listTools(); + + const messages = client.getMessages(); + const request = messages.find((m) => m.direction === "request"); + expect(request).toBeDefined(); + if (request && "response" in request) { + expect(request.response).toBeDefined(); + expect(request.duration).toBeDefined(); + } + }); + + it("should respect maxMessages limit", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + maxMessages: 5, + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Make multiple requests to exceed the limit + for (let i = 0; i < 10; i++) { + await client.listTools(); + } + + expect(client.getMessages().length).toBeLessThanOrEqual(5); + }); + + it("should emit message events", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + const messageEvents: MessageEntry[] = []; + client.addEventListener("message", (event) => { + const customEvent = event as CustomEvent; + messageEvents.push(customEvent.detail); + }); + + await client.connect(); + await client.listTools(); + + expect(messageEvents.length).toBeGreaterThan(0); + }); + + it("should emit messagesChange events", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + let changeCount = 0; + client.addEventListener("messagesChange", () => { + changeCount++; + }); + + await client.connect(); + await client.listTools(); + + expect(changeCount).toBeGreaterThan(0); + }); + }); + + describe("Fetch Request Tracking", () => { + it("should track HTTP requests for SSE transport", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createEchoTool()], + serverType: "sse", + }); + + await server.start(); + client = new InspectorClient( + { + type: "sse", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + await client.listTools(); + + const fetchRequests = client.getFetchRequests(); + expect(fetchRequests.length).toBeGreaterThan(0); + const request = fetchRequests[0]; + expect(request).toBeDefined(); + if (request) { + expect(request.url).toContain("/sse"); + expect(request.method).toBe("GET"); + } + }); + + it("should track HTTP requests for streamable-http transport", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createEchoTool()], + }); + + await server.start(); + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + await client.listTools(); + + const fetchRequests = client.getFetchRequests(); + expect(fetchRequests.length).toBeGreaterThan(0); + const request = fetchRequests[0]; + expect(request).toBeDefined(); + if (request) { + expect(request.url).toContain("/mcp"); + expect(request.method).toBe("POST"); + } + }); + + it("should track request and response details", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createEchoTool()], + }); + + await server.start(); + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + await client.listTools(); + + const fetchRequests = client.getFetchRequests(); + expect(fetchRequests.length).toBeGreaterThan(0); + // Find a request that has response details (not just the initial connection) + const request = fetchRequests.find((r) => r.responseStatus !== undefined); + expect(request).toBeDefined(); + if (request) { + expect(request.requestHeaders).toBeDefined(); + expect(request.responseStatus).toBeDefined(); + expect(request.responseHeaders).toBeDefined(); + expect(request.duration).toBeDefined(); + } + }); + + it("should respect maxFetchRequests limit", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createEchoTool()], + }); + + await server.start(); + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + maxFetchRequests: 3, + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Make multiple requests to exceed the limit + for (let i = 0; i < 10; i++) { + await client.listTools(); + } + + expect(client.getFetchRequests().length).toBeLessThanOrEqual(3); + }); + + it("should emit fetchRequest events", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createEchoTool()], + }); + + await server.start(); + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + const fetchRequestEvents: any[] = []; + client.addEventListener("fetchRequest", (event) => { + const customEvent = event as CustomEvent; + fetchRequestEvents.push(customEvent.detail); + }); + + await client.connect(); + await client.listTools(); + + expect(fetchRequestEvents.length).toBeGreaterThan(0); + }); + + it("should emit fetchRequestsChange events", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createEchoTool()], + }); + + await server.start(); + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + let changeFired = false; + client.addEventListener("fetchRequestsChange", () => { + changeFired = true; + }); + + await client.connect(); + await client.listTools(); + + expect(changeFired).toBe(true); + }); + }); + + describe("Server Data Management", () => { + it("should auto-fetch server contents when enabled", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: true, + }, + ); + + await client.connect(); + + expect(client.getTools().length).toBeGreaterThan(0); + expect(client.getCapabilities()).toBeDefined(); + expect(client.getServerInfo()).toBeDefined(); + }); + + it("should not auto-fetch server contents when disabled", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + expect(client.getTools().length).toBe(0); + }); + + it("should emit toolsChange event", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: true, + }, + ); + + const toolsEvents: any[][] = []; + client.addEventListener("toolsChange", (event) => { + const customEvent = event as CustomEvent; + toolsEvents.push(customEvent.detail); + }); + + await client.connect(); + + expect(toolsEvents.length).toBeGreaterThan(0); + expect(toolsEvents[0]?.length).toBeGreaterThan(0); + }); + }); + + describe("Tool Methods", () => { + beforeEach(async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + await client.connect(); + }); + + it("should list tools", async () => { + const result = await client.listTools(); + expect(result).toHaveProperty("tools"); + const tools = result.tools as any[]; + expect(Array.isArray(tools)).toBe(true); + expect(tools.length).toBeGreaterThan(0); + }); + + it("should call tool with string arguments", async () => { + const result = await client.callTool("echo", { + message: "hello world", + }); + + expect(result).toHaveProperty("content"); + const content = result.content as any[]; + expect(Array.isArray(content)).toBe(true); + expect(content[0]).toHaveProperty("type", "text"); + expect(content[0].text).toContain("hello world"); + }); + + it("should call tool with number arguments", async () => { + const result = await client.callTool("get-sum", { + a: 42, + b: 58, + }); + + expect(result).toHaveProperty("content"); + const content = result.content as any[]; + const resultData = JSON.parse(content[0].text); + expect(resultData.result).toBe(100); + }); + + it("should call tool with boolean arguments", async () => { + const result = await client.callTool("get-annotated-message", { + messageType: "success", + includeImage: true, + }); + + expect(result).toHaveProperty("content"); + const content = result.content as any[]; + expect(content.length).toBeGreaterThan(1); + const hasImage = content.some((item: any) => item.type === "image"); + expect(hasImage).toBe(true); + }); + + it("should handle tool not found", async () => { + const result = await client.callTool("nonexistent-tool", {}); + // When tool is not found, the SDK returns an error response, not an exception + expect(result).toHaveProperty("isError", true); + expect(result).toHaveProperty("content"); + const content = result.content as any[]; + expect(content[0]).toHaveProperty("text"); + expect(content[0].text).toContain("not found"); + }); + }); + + describe("Resource Methods", () => { + beforeEach(async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + await client.connect(); + }); + + it("should list resources", async () => { + const result = await client.listResources(); + expect(result).toHaveProperty("resources"); + expect(Array.isArray(result.resources)).toBe(true); + }); + + it("should read resource", async () => { + // First get list of resources + const listResult = await client.listResources(); + const resources = listResult.resources as any[]; + if (resources && resources.length > 0) { + const uri = resources[0].uri; + const readResult = await client.readResource(uri); + expect(readResult).toHaveProperty("contents"); + } + }); + }); + + describe("Prompt Methods", () => { + beforeEach(async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + await client.connect(); + }); + + it("should list prompts", async () => { + const result = await client.listPrompts(); + expect(result).toHaveProperty("prompts"); + expect(Array.isArray(result.prompts)).toBe(true); + }); + }); + + describe("Logging", () => { + it("should set logging level when server supports it", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + initialLoggingLevel: "debug", + }, + ); + + await client.connect(); + + // If server supports logging, the level should be set + // We can't directly verify this, but it shouldn't throw + const capabilities = client.getCapabilities(); + if (capabilities?.logging) { + await client.setLoggingLevel("info"); + } + }); + + it("should track stderr logs for stdio transport", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + pipeStderr: true, + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Stderr logs may or may not be present depending on server behavior + const logs = client.getStderrLogs(); + expect(Array.isArray(logs)).toBe(true); + }); + }); + + describe("Events", () => { + it("should emit statusChange events", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + const statuses: string[] = []; + client.addEventListener("statusChange", (event) => { + const customEvent = event as CustomEvent; + statuses.push(customEvent.detail); + }); + + await client.connect(); + await client.disconnect(); + + expect(statuses).toContain("connecting"); + expect(statuses).toContain("connected"); + expect(statuses).toContain("disconnected"); + }); + + it("should emit connect event", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + let connectFired = false; + client.addEventListener("connect", () => { + connectFired = true; + }); + + await client.connect(); + expect(connectFired).toBe(true); + }); + + it("should emit disconnect event", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + let disconnectFired = false; + client.addEventListener("disconnect", () => { + disconnectFired = true; + }); + + await client.connect(); + await client.disconnect(); + expect(disconnectFired).toBe(true); + }); + }); +}); diff --git a/shared/__tests__/jsonUtils.test.ts b/shared/__tests__/jsonUtils.test.ts new file mode 100644 index 000000000..ea5050c66 --- /dev/null +++ b/shared/__tests__/jsonUtils.test.ts @@ -0,0 +1,124 @@ +import { describe, it, expect } from "vitest"; +import { + convertParameterValue, + convertToolParameters, + convertPromptArguments, +} from "../json/jsonUtils.js"; +import type { Tool } from "@modelcontextprotocol/sdk/types.js"; + +describe("JSON Utils", () => { + describe("convertParameterValue", () => { + it("should convert string to string", () => { + expect(convertParameterValue("hello", { type: "string" })).toBe("hello"); + }); + + it("should convert string to number", () => { + expect(convertParameterValue("42", { type: "number" })).toBe(42); + expect(convertParameterValue("3.14", { type: "number" })).toBe(3.14); + }); + + it("should convert string to boolean", () => { + expect(convertParameterValue("true", { type: "boolean" })).toBe(true); + expect(convertParameterValue("false", { type: "boolean" })).toBe(false); + }); + + it("should parse JSON strings", () => { + expect( + convertParameterValue('{"key":"value"}', { type: "object" }), + ).toEqual({ + key: "value", + }); + expect(convertParameterValue("[1,2,3]", { type: "array" })).toEqual([ + 1, 2, 3, + ]); + }); + + it("should return string for unknown types", () => { + expect(convertParameterValue("hello", { type: "unknown" })).toBe("hello"); + }); + }); + + describe("convertToolParameters", () => { + const tool: Tool = { + name: "test-tool", + description: "Test tool", + inputSchema: { + type: "object", + properties: { + message: { type: "string" }, + count: { type: "number" }, + enabled: { type: "boolean" }, + }, + }, + }; + + it("should convert string parameters", () => { + const result = convertToolParameters(tool, { + message: "hello", + count: "42", + enabled: "true", + }); + + expect(result.message).toBe("hello"); + expect(result.count).toBe(42); + expect(result.enabled).toBe(true); + }); + + it("should preserve non-string values", () => { + const result = convertToolParameters(tool, { + message: "hello", + count: "42", // Still pass as string, conversion will handle it + enabled: "true", // Still pass as string, conversion will handle it + }); + + expect(result.message).toBe("hello"); + expect(result.count).toBe(42); + expect(result.enabled).toBe(true); + }); + + it("should handle missing schema", () => { + const toolWithoutSchema: Tool = { + name: "test-tool", + description: "Test tool", + inputSchema: { + type: "object", + properties: {}, + }, + }; + + const result = convertToolParameters(toolWithoutSchema, { + message: "hello", + }); + + expect(result.message).toBe("hello"); + }); + }); + + describe("convertPromptArguments", () => { + it("should convert values to strings", () => { + const result = convertPromptArguments({ + name: "John", + age: 42, + active: true, + data: { key: "value" }, + items: [1, 2, 3], + }); + + expect(result.name).toBe("John"); + expect(result.age).toBe("42"); + expect(result.active).toBe("true"); + expect(result.data).toBe('{"key":"value"}'); + expect(result.items).toBe("[1,2,3]"); + }); + + it("should handle null and undefined", () => { + const result = convertPromptArguments({ + value: null, + missing: undefined, + }); + + expect(result.value).toBe("null"); + expect(result.missing).toBe("undefined"); + }); + }); +}); diff --git a/shared/__tests__/transport.test.ts b/shared/__tests__/transport.test.ts new file mode 100644 index 000000000..406bbfd8a --- /dev/null +++ b/shared/__tests__/transport.test.ts @@ -0,0 +1,191 @@ +import { describe, it, expect } from "vitest"; +import { createTransport, getServerType } from "../mcp/transport.js"; +import type { MCPServerConfig } from "../mcp/types.js"; +import { createTestServerHttp } from "../test/test-server-http.js"; +import { + createEchoTool, + createTestServerInfo, +} from "../test/test-server-fixtures.js"; +import { Client } from "@modelcontextprotocol/sdk/client/index.js"; + +describe("Transport", () => { + describe("getServerType", () => { + it("should return stdio for stdio config", () => { + const config: MCPServerConfig = { + type: "stdio", + command: "echo", + args: ["hello"], + }; + expect(getServerType(config)).toBe("stdio"); + }); + + it("should return sse for sse config", () => { + const config: MCPServerConfig = { + type: "sse", + url: "http://localhost:3000/sse", + }; + expect(getServerType(config)).toBe("sse"); + }); + + it("should return streamable-http for streamable-http config", () => { + const config: MCPServerConfig = { + type: "streamable-http", + url: "http://localhost:3000/mcp", + }; + expect(getServerType(config)).toBe("streamable-http"); + }); + + it("should default to stdio when type is not present", () => { + const config: MCPServerConfig = { + command: "echo", + args: ["hello"], + }; + expect(getServerType(config)).toBe("stdio"); + }); + + it("should throw error for invalid type", () => { + const config = { + type: "invalid", + command: "echo", + } as unknown as MCPServerConfig; + expect(() => getServerType(config)).toThrow(); + }); + }); + + describe("createTransport", () => { + it("should create stdio transport", () => { + const config: MCPServerConfig = { + type: "stdio", + command: "echo", + args: ["hello"], + }; + const result = createTransport(config); + expect(result.transport).toBeDefined(); + }); + + it("should create SSE transport", () => { + const config: MCPServerConfig = { + type: "sse", + url: "http://localhost:3000/sse", + }; + const result = createTransport(config); + expect(result.transport).toBeDefined(); + }); + + it("should create streamable-http transport", () => { + const config: MCPServerConfig = { + type: "streamable-http", + url: "http://localhost:3000/mcp", + }; + const result = createTransport(config); + expect(result.transport).toBeDefined(); + }); + + it("should call onFetchRequest callback for SSE transport", async () => { + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createEchoTool()], + serverType: "sse", + }); + + try { + await server.start(); + + const config: MCPServerConfig = { + type: "sse", + url: server.url, + }; + + const fetchRequests: any[] = []; + const result = createTransport(config, { + onFetchRequest: (entry) => { + fetchRequests.push(entry); + }, + }); + + expect(result.transport).toBeDefined(); + + // Actually connect and make a request to verify fetch tracking works + const client = new Client( + { + name: "test-client", + version: "1.0.0", + }, + { + capabilities: {}, + }, + ); + + await client.connect(result.transport); + await client.listTools(); + await client.close(); + + // Verify fetch requests were tracked + expect(fetchRequests.length).toBeGreaterThan(0); + // SSE uses GET for the initial connection + const getRequest = fetchRequests.find((r) => r.method === "GET"); + expect(getRequest).toBeDefined(); + if (getRequest) { + expect(getRequest.url).toContain("/sse"); + expect(getRequest.requestHeaders).toBeDefined(); + } + } finally { + await server.stop(); + } + }); + + it("should call onFetchRequest callback for streamable-http transport", async () => { + const server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createEchoTool()], + serverType: "streamable-http", + }); + + try { + await server.start(); + + const config: MCPServerConfig = { + type: "streamable-http", + url: server.url, + }; + + const fetchRequests: any[] = []; + const result = createTransport(config, { + onFetchRequest: (entry) => { + fetchRequests.push(entry); + }, + }); + + expect(result.transport).toBeDefined(); + + // Actually connect and make a request to verify fetch tracking works + const client = new Client( + { + name: "test-client", + version: "1.0.0", + }, + { + capabilities: {}, + }, + ); + + await client.connect(result.transport); + await client.listTools(); + await client.close(); + + // Verify fetch requests were tracked + expect(fetchRequests.length).toBeGreaterThan(0); + const request = fetchRequests[0]; + expect(request).toBeDefined(); + expect(request.url).toContain("/mcp"); + expect(request.method).toBe("POST"); + expect(request.requestHeaders).toBeDefined(); + expect(request.responseStatus).toBeDefined(); + expect(request.responseHeaders).toBeDefined(); + expect(request.duration).toBeDefined(); + } finally { + await server.stop(); + } + }); + }); +}); diff --git a/shared/mcp/fetchTracking.ts b/shared/mcp/fetchTracking.ts index a443452c5..bb44174e0 100644 --- a/shared/mcp/fetchTracking.ts +++ b/shared/mcp/fetchTracking.ts @@ -47,10 +47,8 @@ export function createFetchTracker( if (init?.body) { if (typeof init.body === "string") { requestBody = init.body; - } else if (init.body instanceof ReadableStream) { - // For streams, we can't read them without consuming, so we'll skip - requestBody = undefined; } else { + // Try to convert to string, but skip if it fails (e.g., ReadableStream) try { requestBody = String(init.body); } catch { @@ -59,11 +57,12 @@ export function createFetchTracker( } } else if (input instanceof Request && input.body) { // Try to clone and read the request body + // Clone protects the original body from being consumed try { const cloned = input.clone(); requestBody = await cloned.text(); } catch { - // Can't read body, that's okay + // Can't read body (might be consumed, not readable, or other issue) requestBody = undefined; } } @@ -100,28 +99,36 @@ export function createFetchTracker( responseHeaders[key] = value; }); - // Try to read response body (clone so we don't consume it) - let responseBody: string | undefined; + // Check if this is a streaming response - if so, skip body reading entirely + // For streamable-http POST requests to /mcp, the response is always a stream + // that the transport needs to consume, so we should never try to read it const contentType = response.headers.get("content-type"); const isStream = contentType?.includes("text/event-stream") || - contentType?.includes("application/x-ndjson"); + contentType?.includes("application/x-ndjson") || + (method === "POST" && url.includes("/mcp")); - if (!isStream) { - try { - const cloned = response.clone(); - responseBody = await cloned.text(); - } catch { - // Can't read body (might be consumed or not readable) - responseBody = undefined; - } + let responseBody: string | undefined; + let duration: number; + + if (isStream) { + // For streams, don't try to read the body - just record metadata and return immediately + // The transport needs to consume the stream, so we can't clone/read it + duration = Date.now() - startTime; } else { - // For streams, we can't read them without consuming, so we'll skip - responseBody = undefined; + // For regular responses, try to read the body (clone so we don't consume it) + if (response.body && !response.bodyUsed) { + try { + const cloned = response.clone(); + responseBody = await cloned.text(); + } catch { + // Can't read body (might be consumed, not readable, or other issue) + responseBody = undefined; + } + } + duration = Date.now() - startTime; } - const duration = Date.now() - startTime; - // Create entry and track it const entry: FetchRequestEntry = { id, diff --git a/shared/package.json b/shared/package.json index dec11634f..07ef1305c 100644 --- a/shared/package.json +++ b/shared/package.json @@ -16,14 +16,19 @@ "build" ], "scripts": { - "build": "tsc" + "build": "tsc", + "test": "vitest run", + "test:watch": "vitest" }, "peerDependencies": { - "react": "^19.2.3" + "react": "^19.2.3", + "@modelcontextprotocol/sdk": "^1.25.2" }, "devDependencies": { + "@modelcontextprotocol/sdk": "^1.25.2", "@types/react": "^19.2.7", "react": "^19.2.3", - "typescript": "^5.4.2" + "typescript": "^5.4.2", + "vitest": "^4.0.17" } } diff --git a/shared/test/test-server-fixtures.ts b/shared/test/test-server-fixtures.ts index d92d79ae0..bec839ab3 100644 --- a/shared/test/test-server-fixtures.ts +++ b/shared/test/test-server-fixtures.ts @@ -39,6 +39,8 @@ export interface ServerConfig { resources?: ResourceDefinition[]; // Resources to register (optional, empty array means no resources, but resources capability is still advertised) prompts?: PromptDefinition[]; // Prompts to register (optional, empty array means no prompts, but prompts capability is still advertised) logging?: boolean; // Whether to advertise logging capability (default: false) + serverType?: "sse" | "streamable-http"; // Transport type (default: "streamable-http") + port?: number; // Port to use (optional, will find available port if not specified) } /** diff --git a/shared/test/test-server-http.ts b/shared/test/test-server-http.ts index 5c42cc4b1..9a9fff43b 100644 --- a/shared/test/test-server-http.ts +++ b/shared/test/test-server-http.ts @@ -24,7 +24,7 @@ export interface RecordedRequest { async function findAvailablePort(startPort: number): Promise { return new Promise((resolve, reject) => { const server = createNetServer(); - server.listen(startPort, () => { + server.listen(startPort, "127.0.0.1", () => { const port = (server.address() as { port: number })?.port; server.close(() => resolve(port || startPort)); }); @@ -50,7 +50,10 @@ function extractHeaders(req: Request): Record { if (typeof value === "string") { headers[key] = value; } else if (Array.isArray(value) && value.length > 0) { - headers[key] = value[value.length - 1]; + const lastValue = value[value.length - 1]; + if (typeof lastValue === "string") { + headers[key] = lastValue; + } } } return headers; @@ -64,7 +67,7 @@ export class TestServerHttp { private recordedRequests: RecordedRequest[] = []; private httpServer?: HttpServer; private transport?: StreamableHTTPServerTransport | SSEServerTransport; - private url?: string; + private baseUrl?: string; private currentRequestHeaders?: Record; private currentLogLevel: string | null = null; @@ -187,19 +190,17 @@ export class TestServerHttp { } /** - * Start the server with the specified transport + * Start the server using the configuration from ServerConfig */ - async start( - transport: "http" | "sse", - requestedPort?: number, - ): Promise { - const port = requestedPort - ? await findAvailablePort(requestedPort) - : await findAvailablePort(transport === "http" ? 3001 : 3000); + async start(): Promise { + const serverType = this.config.serverType ?? "streamable-http"; + const requestedPort = this.config.port; - this.url = `http://localhost:${port}`; + // If a port is explicitly requested, find an available port starting from that value + // Otherwise, use 0 to let the OS assign an available port + const port = requestedPort ? await findAvailablePort(requestedPort) : 0; - if (transport === "http") { + if (serverType === "streamable-http") { return this.startHttp(port); } else { return this.startSse(port); @@ -298,10 +299,15 @@ export class TestServerHttp { // Connect transport to server await this.mcpServer.connect(this.transport); - // Start listening + // Start listening on localhost only to avoid macOS firewall prompts + // Use port 0 to let the OS assign an available port if no port was specified return new Promise((resolve, reject) => { - this.httpServer!.listen(port, () => { - resolve(port); + this.httpServer!.listen(port, "127.0.0.1", () => { + const address = this.httpServer!.address(); + const assignedPort = + typeof address === "object" && address !== null ? address.port : port; + this.baseUrl = `http://localhost:${assignedPort}`; + resolve(assignedPort); }); this.httpServer!.on("error", reject); }); @@ -314,11 +320,21 @@ export class TestServerHttp { // Create HTTP server this.httpServer = createHttpServer(app); - // For SSE, we need to set up an Express route that creates the transport per request - // This is a simplified version - SSE transport is created per connection - app.get("/mcp", async (req: Request, res: Response) => { + // Store transports by sessionId (like the SDK example) + const sseTransports: Map = new Map(); + + // GET handler for SSE connection (establishes the SSE stream) + app.get("/sse", async (req: Request, res: Response) => { this.currentRequestHeaders = extractHeaders(req); - const sseTransport = new SSEServerTransport("/mcp", res); + const sseTransport = new SSEServerTransport("/sse", res); + + // Store transport by sessionId immediately (before connecting) + sseTransports.set(sseTransport.sessionId, sseTransport); + + // Clean up on connection close + res.on("close", () => { + sseTransports.delete(sseTransport.sessionId); + }); // Intercept messages const originalOnMessage = sseTransport.onmessage; @@ -338,7 +354,7 @@ export class TestServerHttp { : undefined; if (originalOnMessage) { - await originalOnMessage.call(sseTransport, message); + originalOnMessage.call(sseTransport, message); } this.recordedRequests.push({ @@ -370,17 +386,46 @@ export class TestServerHttp { } }; + // Connect server to transport (this automatically calls start()) await this.mcpServer.connect(sseTransport); - await sseTransport.start(); }); - // Note: SSE transport is created per request, so we don't store a single instance - this.transport = undefined; + // POST handler for SSE message sending (SSE uses GET for stream, POST for sending messages) + app.post("/sse", async (req: Request, res: Response) => { + this.currentRequestHeaders = extractHeaders(req); + const sessionId = req.query.sessionId as string | undefined; + + if (!sessionId) { + res.status(400).json({ error: "Missing sessionId query parameter" }); + return; + } + + const transport = sseTransports.get(sessionId); + if (!transport) { + res.status(404).json({ error: "No transport found for sessionId" }); + return; + } + + try { + await transport.handlePostMessage(req, res, req.body); + } catch (error) { + const errorMessage = + error instanceof Error ? error.message : String(error); + res.status(500).json({ + error: errorMessage, + }); + } + }); - // Start listening + // Start listening on localhost only to avoid macOS firewall prompts + // Use port 0 to let the OS assign an available port if no port was specified return new Promise((resolve, reject) => { - this.httpServer!.listen(port, () => { - resolve(port); + this.httpServer!.listen(port, "127.0.0.1", () => { + const address = this.httpServer!.address(); + const assignedPort = + typeof address === "object" && address !== null ? address.port : port; + this.baseUrl = `http://localhost:${assignedPort}`; + resolve(assignedPort); }); this.httpServer!.on("error", reject); }); @@ -424,13 +469,15 @@ export class TestServerHttp { } /** - * Get the server URL + * Get the server URL with the appropriate endpoint path */ - getUrl(): string { - if (!this.url) { + get url(): string { + if (!this.baseUrl) { throw new Error("Server not started"); } - return this.url; + const serverType = this.config.serverType ?? "streamable-http"; + const endpoint = serverType === "sse" ? "/sse" : "/mcp"; + return `${this.baseUrl}${endpoint}`; } /** diff --git a/shared/test/test-server-stdio.ts b/shared/test/test-server-stdio.ts index b720a21f8..bf6b614f0 100644 --- a/shared/test/test-server-stdio.ts +++ b/shared/test/test-server-stdio.ts @@ -222,9 +222,9 @@ export function getTestMcpServerCommand(): { command: string; args: string[] } { // If run as a standalone script, start with default config // Check if this file is being executed directly (not imported) const isMainModule = - import.meta.url.endsWith(process.argv[1]) || - process.argv[1]?.endsWith("test-server-stdio.ts") || - process.argv[1]?.endsWith("test-server-stdio.js"); + import.meta.url.endsWith(process.argv[1] || "") || + (process.argv[1]?.endsWith("test-server-stdio.ts") ?? false) || + (process.argv[1]?.endsWith("test-server-stdio.js") ?? false); if (isMainModule) { const server = new TestServerStdio(getDefaultServerConfig()); diff --git a/shared/tsconfig.json b/shared/tsconfig.json index ad92161ff..0a5e0c8cd 100644 --- a/shared/tsconfig.json +++ b/shared/tsconfig.json @@ -16,6 +16,13 @@ "resolveJsonModule": true, "noUncheckedIndexedAccess": true }, - "include": ["mcp/**/*.ts", "react/**/*.ts", "react/**/*.tsx", "json/**/*.ts"], + "include": [ + "mcp/**/*.ts", + "react/**/*.ts", + "react/**/*.tsx", + "json/**/*.ts", + "test/**/*.ts", + "__tests__/**/*.ts" + ], "exclude": ["node_modules", "build"] } diff --git a/shared/vitest.config.ts b/shared/vitest.config.ts new file mode 100644 index 000000000..200f56db2 --- /dev/null +++ b/shared/vitest.config.ts @@ -0,0 +1,10 @@ +import { defineConfig } from "vitest/config"; + +export default defineConfig({ + test: { + globals: true, + environment: "node", + include: ["**/__tests__/**/*.test.ts"], + testTimeout: 15000, // 15 seconds - tests may spawn subprocesses + }, +}); From 8d67f6fc654968246386421fc73f5522f84d88a6 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Wed, 21 Jan 2026 23:57:42 -0800 Subject: [PATCH 25/44] Fuill resource (including templates) and prompt support in InspectorClient and TUI. Refactored composable test and fixtures (including adding resource template support). --- cli/__tests__/metadata.test.ts | 3 + docs/tui-web-client-feature-gaps.md | 384 +++++++++++++++++++++++ shared/__tests__/inspectorClient.test.ts | 61 ++++ shared/mcp/inspectorClient.ts | 31 +- shared/react/useInspectorClient.ts | 20 ++ shared/test/composable-test-server.ts | 261 +++++++++++++++ shared/test/test-server-fixtures.ts | 128 +++++--- shared/test/test-server-http.ts | 122 +------ shared/test/test-server-stdio.ts | 158 ++-------- tui/src/App.tsx | 87 ++++- tui/src/components/PromptTestModal.tsx | 301 ++++++++++++++++++ tui/src/components/PromptsTab.tsx | 55 +++- tui/src/components/ResourceTestModal.tsx | 324 +++++++++++++++++++ tui/src/components/ResourcesTab.tsx | 299 ++++++++++++++++-- tui/src/components/ToolsTab.tsx | 12 +- tui/src/utils/promptArgsToForm.ts | 46 +++ tui/src/utils/uriTemplateToForm.ts | 47 +++ 17 files changed, 2013 insertions(+), 326 deletions(-) create mode 100644 docs/tui-web-client-feature-gaps.md create mode 100644 shared/test/composable-test-server.ts create mode 100644 tui/src/components/PromptTestModal.tsx create mode 100644 tui/src/components/ResourceTestModal.tsx create mode 100644 tui/src/utils/promptArgsToForm.ts create mode 100644 tui/src/utils/uriTemplateToForm.ts diff --git a/cli/__tests__/metadata.test.ts b/cli/__tests__/metadata.test.ts index 98886d0be..d37236685 100644 --- a/cli/__tests__/metadata.test.ts +++ b/cli/__tests__/metadata.test.ts @@ -100,6 +100,7 @@ describe("Metadata Tests", () => { { name: "test-prompt", description: "A test prompt", + promptString: "test prompt", }, ], }); @@ -185,6 +186,7 @@ describe("Metadata Tests", () => { { name: "test-prompt", description: "A test prompt", + promptString: "test prompt", }, ], }); @@ -668,6 +670,7 @@ describe("Metadata Tests", () => { { name: "test-prompt", description: "A test prompt", + promptString: "test prompt", }, ], }); diff --git a/docs/tui-web-client-feature-gaps.md b/docs/tui-web-client-feature-gaps.md new file mode 100644 index 000000000..8e644a278 --- /dev/null +++ b/docs/tui-web-client-feature-gaps.md @@ -0,0 +1,384 @@ +# TUI and Web Client Feature Gap Analysis + +## Overview + +This document details the feature gaps between the TUI (Terminal User Interface) and the web client. The goal is to identify all missing features in the TUI and create a plan to close these gaps by extending `InspectorClient` and implementing the features in the TUI. + +## Feature Comparison Matrix + +| Feature | Web Client | TUI | Gap Priority | +| --------------------------------- | ---------- | --- | ----------------- | +| **Resources** | +| List resources | ✅ | ✅ | - | +| Read resource content | ✅ | ✅ | - | +| List resource templates | ✅ | ✅ | - | +| Read templated resources | ✅ | ✅ | - | +| Resource subscriptions | ✅ | ❌ | Medium | +| **Prompts** | +| List prompts | ✅ | ✅ | - | +| Get prompt (no params) | ✅ | ✅ | - | +| Get prompt (with params) | ✅ | ✅ | - | +| **Tools** | +| List tools | ✅ | ✅ | - | +| Call tool | ✅ | ✅ | - | +| **Authentication** | +| OAuth 2.1 flow | ✅ | ❌ | High | +| Custom headers | ✅ | ❌ | Medium | +| **Advanced Features** | +| Sampling requests | ✅ | ❌ | High | +| Elicitation requests | ✅ | ❌ | High | +| Completions (resource templates) | ✅ | ❌ | Medium | +| Completions (prompts with params) | ✅ | ❌ | Medium | +| **Other** | +| HTTP request tracking | ❌ | ✅ | - (TUI advantage) | + +## Detailed Feature Gaps + +### 1. Reading and Displaying Resource Content + +**Web Client Support:** + +- Calls `resources/read` method to fetch actual resource content +- `resources/read` returns `{ contents: [{ uri, mimeType, text, ... }] }` - the actual resource content (file text, data, etc.) +- Displays resource content in `JsonView` component +- Has "Refresh" button to re-read resource content +- Stores read content in `resourceContent` state and `resourceContentMap` for caching + +**TUI Status:** + +- ✅ **Calls `readResource()`** when Enter is pressed on a resource +- ✅ **Displays resource content** in the details pane as JSON +- ✅ Shows "[Enter to Fetch Resource]" prompt in details pane +- ✅ Fetches and displays actual resource contents + +**Implementation:** + +- Press Enter on a resource to call `inspectorClient.readResource(uri)` +- Resource content is displayed in the details pane as JSON +- Content is fetched on-demand when Enter is pressed +- Loading state is shown while fetching + +**Code References:** + +- TUI: `tui/src/components/ResourcesTab.tsx` (lines 158-180) - `readResource()` call and content display +- TUI: `tui/src/components/ResourcesTab.tsx` (lines 360, 423) - "[Enter to Fetch Resource]" prompts +- `InspectorClient`: Has `readResource()` method (line 535-554) + +**Note:** ✅ **COMPLETED** - TUI can now fetch and display resource contents. + +### 2. Resource Templates + +**Web Client Support:** + +- Lists resource templates via `resources/templates/list` +- Displays templates with URI template patterns (e.g., `file://{path}`) +- Provides form UI for filling template variables +- Uses URI template expansion (`UriTemplate.expand()`) to generate final URIs +- Supports completion requests for template variable values +- Reads resources from expanded template URIs + +**TUI Status:** + +- ✅ Support for listing resource templates (displayed in ResourcesTab) +- ✅ Support for reading templated resources via modal form +- ✅ URI template expansion using `UriTemplate.expand()` +- ✅ Template variable input UI via `ResourceTestModal` +- ❌ Completion support for template variable values (still needed) + +**Implementation:** + +- Resource templates are listed in ResourcesTab alongside regular resources +- Press Enter on a template to open `ResourceTestModal` +- Modal form collects template variable values +- Expanded URI is used to read the resource +- Resource content is displayed in the modal results + +**Code References:** + +- TUI: `tui/src/components/ResourcesTab.tsx` (lines 249-275) - Template listing and selection +- TUI: `tui/src/components/ResourceTestModal.tsx` - Template form and resource reading +- TUI: `tui/src/utils/uriTemplateToForm.ts` - Converts URI template to form structure +- `InspectorClient`: Has `listResourceTemplates()` and `readResource()` methods + +**Note:** ✅ **COMPLETED** - TUI can now list and read templated resources. Completion support for template variables is still needed. + +### 3. Resource Subscriptions + +**Web Client Support:** + +- Subscribes to resources via `resources/subscribe` +- Unsubscribes via `resources/unsubscribe` +- Tracks subscribed resources in state +- UI shows subscription status and subscribe/unsubscribe buttons +- Handles `notifications/resources/updated` notifications for subscribed resources + +**TUI Status:** + +- ❌ No support for resource subscriptions +- ❌ No subscription state management +- ❌ No UI for subscribe/unsubscribe actions + +**Implementation Requirements:** + +- Add `subscribeResource(uri)` and `unsubscribeResource(uri)` methods to `InspectorClient` +- Add subscription state tracking in `InspectorClient` +- Add UI in TUI `ResourcesTab` for subscribe/unsubscribe actions +- Handle resource update notifications for subscribed resources + +**Code References:** + +- Web client: `client/src/App.tsx` (lines 781-809) +- Web client: `client/src/components/ResourcesTab.tsx` (lines 207-221) + +### 4. OAuth 2.1 Authentication + +**Web Client Support:** + +- Full browser-based OAuth 2.1 flow: + - Dynamic Client Registration (DCR) + - Authorization code flow with PKCE + - Token exchange + - Token refresh +- OAuth state management via `InspectorOAuthClientProvider` +- Session storage for OAuth tokens +- OAuth callback handling +- Automatic token injection into request headers + +**TUI Status:** + +- ❌ No OAuth support +- ❌ No OAuth token management + +**Implementation Requirements:** + +- Browser-based OAuth flow with localhost callback server (TUI-specific approach) +- OAuth token management in `InspectorClient` +- Token injection into transport headers +- OAuth configuration in TUI server config + +**Code References:** + +- Web client: `client/src/lib/hooks/useConnection.ts` (lines 449-480) +- Web client: `client/src/lib/auth.ts` +- Architecture doc mentions: "There is a plan for implementing OAuth from the TUI" + +**Note:** OAuth in TUI requires a browser-based flow with a localhost callback server, which is feasible but different from the web client's approach. + +### 5. Sampling Requests + +**Web Client Support:** + +- Declares `sampling: {}` capability in client initialization +- Sets up request handler for `sampling/createMessage` requests +- UI tab (`SamplingTab`) displays pending sampling requests +- `SamplingRequest` component shows request details and approval UI +- Handles approve/reject actions +- Tracks pending requests in state + +**TUI Status:** + +- ❌ No sampling support +- ❌ No sampling request handler +- ❌ No UI for sampling requests + +**Implementation Requirements:** + +- Add sampling capability declaration to `InspectorClient` client initialization +- Add `setSamplingHandler()` method to `InspectorClient` (or use `getClient().setRequestHandler()`) +- Add UI in TUI for displaying and handling sampling requests +- Add sampling tab or integrate into existing tabs + +**Code References:** + +- Web client: `client/src/lib/hooks/useConnection.ts` (line 420) +- Web client: `client/src/components/SamplingTab.tsx` +- Web client: `client/src/components/SamplingRequest.tsx` +- Web client: `client/src/App.tsx` (lines 328-333, 637-652) + +### 6. Elicitation Requests + +**Web Client Support:** + +- Declares `elicitation: {}` capability in client initialization +- Sets up request handler for `elicitation/create` requests +- UI tab (`ElicitationTab`) displays pending elicitation requests +- `ElicitationRequest` component: + - Shows request message and schema + - Generates dynamic form from JSON schema + - Validates form data against schema + - Handles accept/decline/cancel actions +- Tracks pending requests in state + +**TUI Status:** + +- ❌ No elicitation support +- ❌ No elicitation request handler +- ❌ No UI for elicitation requests + +**Implementation Requirements:** + +- Add elicitation capability declaration to `InspectorClient` client initialization +- Add `setElicitationHandler()` method to `InspectorClient` (or use `getClient().setRequestHandler()`) +- Add UI in TUI for displaying and handling elicitation requests +- Add form generation from JSON schema (similar to tool parameter forms) +- Add elicitation tab or integrate into existing tabs + +**Code References:** + +- Web client: `client/src/lib/hooks/useConnection.ts` (line 421, 810-813) +- Web client: `client/src/components/ElicitationTab.tsx` +- Web client: `client/src/components/ElicitationRequest.tsx` +- Web client: `client/src/App.tsx` (lines 334-356, 653-669) +- Web client: `client/src/utils/schemaUtils.ts` (schema resolution for elicitation) + +### 7. Completions + +**Web Client Support:** + +- Detects completion capability via `serverCapabilities.completions` +- `handleCompletion()` function sends `completion/complete` requests +- Used in resource template forms for autocomplete +- Used in prompt forms with parameters for autocomplete +- `useCompletionState` hook manages completion state +- Completion requests include: + - `ref`: Resource or prompt reference + - `argument`: Field name and current value + - `context`: Additional context (template values or prompt argument values) + +**TUI Status:** + +- ✅ Prompt fetching with parameters - **COMPLETED** (modal form for collecting prompt arguments) +- ❌ No completion support for resource template forms +- ❌ No completion support for prompt parameter forms +- ❌ No completion capability detection +- ❌ No completion request handling + +**Implementation Requirements:** + +- Add completion capability detection (already available via `getCapabilities()?.completions`) +- Add `handleCompletion()` method to `InspectorClient` (or document access via `getClient()`) +- Integrate completion support into TUI forms: + - **Resource template forms** - autocomplete for template variable values + - **Prompt parameter forms** - autocomplete for prompt argument values +- Add completion state management + +**Code References:** + +- Web client: `client/src/lib/hooks/useConnection.ts` (lines 309, 384-386) +- Web client: `client/src/lib/hooks/useCompletionState.ts` +- Web client: `client/src/components/ResourcesTab.tsx` (lines 88-101) +- TUI: `tui/src/components/PromptTestModal.tsx` - Prompt form (needs completion integration) +- TUI: `tui/src/components/ResourceTestModal.tsx` - Resource template form (needs completion integration) + +### 8. Custom Headers + +**Web Client Support:** + +- Custom header management (migration from legacy auth) +- Header validation +- OAuth token injection into headers +- Special header processing (`x-custom-auth-headers`) +- Headers passed to transport creation + +**TUI Status:** + +- ❌ No custom header support +- ❌ No header configuration UI + +**Implementation Requirements:** + +- Add `headers` support to `MCPServerConfig` (already exists for SSE and StreamableHTTP) +- Add header configuration in TUI server config +- Pass headers to transport creation (already supported in `createTransport()`) + +**Code References:** + +- Web client: `client/src/lib/hooks/useConnection.ts` (lines 447-480) +- `InspectorClient`: Headers already supported in `MCPServerConfig` types + +## Implementation Priority + +### Critical Priority (Core Functionality) + +1. ✅ **Read Resource Content** - **COMPLETED** - TUI can now fetch and display resource contents +2. ✅ **Resource Templates** - **COMPLETED** - TUI can list and read templated resources + +### High Priority (Core MCP Features) + +3. **OAuth** - Required for many MCP servers, critical for production use +4. **Sampling** - Core MCP capability, enables LLM sampling workflows +5. **Elicitation** - Core MCP capability, enables interactive workflows + +### Medium Priority (Enhanced Features) + +6. **Resource Subscriptions** - Useful for real-time resource updates +7. **Completions** - Enhances UX for form filling +8. **Custom Headers** - Useful for custom authentication schemes + +## Implementation Strategy + +### Phase 0: Critical Resource Reading (Immediate) + +1. ✅ **Implement resource content reading and display** - **COMPLETED** - Added ability to call `readResource()` and display content +2. ✅ **Resource templates** - **COMPLETED** - Added listing and reading templated resources with form UI + +### Phase 1: Core Resource Features + +1. ✅ **Resource templates** - **COMPLETED** (listing, reading templated resources with form UI) +2. ✅ **Prompt fetching with parameters** - **COMPLETED** (modal form for collecting prompt arguments) +3. Add resource subscriptions support + +### Phase 2: Authentication + +1. Implement OAuth flow for TUI (browser-based with localhost callback) +2. Add custom headers support + +### Phase 3: Advanced MCP Features + +1. Implement sampling request handling +2. Implement elicitation request handling +3. Add completion support for resource template forms +4. Add completion support for prompt parameter forms + +## InspectorClient Extensions Needed + +Based on this analysis, `InspectorClient` needs the following additions: + +1. **Resource Methods** (some already exist): + - ✅ `readResource(uri, metadata?)` - Already exists + - ✅ `listResourceTemplates()` - Already exists + - ❌ `subscribeResource(uri)` - Needs to be added + - ❌ `unsubscribeResource(uri)` - Needs to be added + +2. **Request Handlers**: + - ❌ `setSamplingHandler(handler)` - Or document using `getClient().setRequestHandler()` + - ❌ `setElicitationHandler(handler)` - Or document using `getClient().setRequestHandler()` + - ❌ `setPendingRequestHandler(handler)` - Or document using `getClient().setRequestHandler()` + +3. **Completion Support**: + - ❌ `handleCompletion(ref, argument, context?)` - Needs to be added or documented + - ❌ Integration into `ResourceTestModal` for template variable completion + - ❌ Integration into `PromptTestModal` for prompt argument completion + +4. **OAuth Support**: + - ❌ OAuth token management + - ❌ OAuth flow initiation + - ❌ Token injection into headers + +5. **Client Capabilities**: + - ❌ Declare `sampling: {}` capability in client initialization + - ❌ Declare `elicitation: {}` capability in client initialization + - ❌ Declare `roots: { listChanged: true }` capability in client initialization + +## Notes + +- **HTTP Request Tracking**: TUI has this feature, web client does not. This is a TUI advantage, not a gap. +- **Resource Subscriptions**: Web client supports this, but TUI does not. This is a gap to address. +- **OAuth**: Web client has full OAuth support. TUI needs browser-based OAuth flow with localhost callback server. +- **Completions**: Web client uses completions for resource template forms and prompt parameter forms. TUI now has both resource template forms and prompt parameter forms, but completion support is still needed to provide autocomplete suggestions. +- **Prompt Fetching**: TUI now supports fetching prompts with parameters via a modal form, matching web client functionality. + +## Related Documentation + +- [Shared Code Architecture](./shared-code-architecture.md) - Overall architecture and integration plan +- [InspectorClient Details](./inspector-client-details.svg) - Visual diagram of InspectorClient responsibilities diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index 680fa4464..a69afd25a 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -8,6 +8,7 @@ import { import { createEchoTool, createTestServerInfo, + createFileResourceTemplate, } from "../test/test-server-fixtures.js"; import type { MessageEntry } from "../mcp/types.js"; @@ -616,6 +617,66 @@ describe("InspectorClient", () => { }); }); + describe("Resource Template Methods", () => { + beforeEach(async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resourceTemplates: [createFileResourceTemplate()], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + clientIdentity: { name: "test", version: "1.0.0" }, + autoFetchServerContents: false, + }, + ); + + await client.connect(); + }); + + it("should list resource templates", async () => { + const result = await client.listResourceTemplates(); + expect(result).toHaveProperty("resourceTemplates"); + const resourceTemplates = (result as any).resourceTemplates; + expect(Array.isArray(resourceTemplates)).toBe(true); + expect(resourceTemplates.length).toBeGreaterThan(0); + + const templates = resourceTemplates as any[]; + const fileTemplate = templates.find((t) => t.name === "file"); + expect(fileTemplate).toBeDefined(); + expect(fileTemplate?.uriTemplate).toBe("file:///{path}"); + }); + + it("should read resource from template", async () => { + // First get the template + const listResult = await client.listResourceTemplates(); + const templates = (listResult as any).resourceTemplates as any[]; + const fileTemplate = templates.find((t) => t.name === "file"); + expect(fileTemplate).toBeDefined(); + + // Use a URI that matches the template pattern file:///{path} + // The path variable will be "test.txt" + const expandedUri = "file:///test.txt"; + + // Read the resource using the expanded URI + const readResult = await client.readResource(expandedUri); + expect(readResult).toHaveProperty("contents"); + const contents = (readResult as any).contents; + expect(Array.isArray(contents)).toBe(true); + expect(contents.length).toBeGreaterThan(0); + + const content = contents[0]; + expect(content).toHaveProperty("uri"); + expect(content).toHaveProperty("text"); + expect(content.text).toContain("Mock file content for: test.txt"); + }); + }); + describe("Prompt Methods", () => { beforeEach(async () => { client = new InspectorClient( diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index f420bc4ab..e967fc0e3 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -96,6 +96,7 @@ export class InspectorClient extends EventTarget { // Server data private tools: any[] = []; private resources: any[] = []; + private resourceTemplates: any[] = []; private prompts: any[] = []; private capabilities?: ServerCapabilities; private serverInfo?: Implementation; @@ -286,10 +287,11 @@ export class InspectorClient extends EventTarget { this.dispatchEvent(new Event("disconnect")); } - // Clear server state (tools, resources, prompts) on disconnect + // Clear server state (tools, resources, resource templates, prompts) on disconnect // These are only valid when connected this.tools = []; this.resources = []; + this.resourceTemplates = []; this.prompts = []; this.capabilities = undefined; this.serverInfo = undefined; @@ -371,6 +373,14 @@ export class InspectorClient extends EventTarget { return [...this.resources]; } + /** + * Get resource templates + * @returns Array of resource templates + */ + getResourceTemplates(): any[] { + return [...this.resourceTemplates]; + } + /** * Get all prompts */ @@ -696,6 +706,25 @@ export class InspectorClient extends EventTarget { new CustomEvent("resourcesChange", { detail: this.resources }), ); } + + // Also fetch resource templates + try { + const templatesResult = await this.client.listResourceTemplates(); + this.resourceTemplates = templatesResult.resourceTemplates || []; + this.dispatchEvent( + new CustomEvent("resourceTemplatesChange", { + detail: this.resourceTemplates, + }), + ); + } catch (err) { + // Ignore errors, just leave empty + this.resourceTemplates = []; + this.dispatchEvent( + new CustomEvent("resourceTemplatesChange", { + detail: this.resourceTemplates, + }), + ); + } } if (this.capabilities?.prompts) { diff --git a/shared/react/useInspectorClient.ts b/shared/react/useInspectorClient.ts index 5a6dca708..04b163377 100644 --- a/shared/react/useInspectorClient.ts +++ b/shared/react/useInspectorClient.ts @@ -22,6 +22,7 @@ export interface UseInspectorClientResult { fetchRequests: FetchRequestEntry[]; tools: any[]; resources: any[]; + resourceTemplates: any[]; prompts: any[]; capabilities?: ServerCapabilities; serverInfo?: Implementation; @@ -53,6 +54,9 @@ export function useInspectorClient( const [resources, setResources] = useState( inspectorClient?.getResources() ?? [], ); + const [resourceTemplates, setResourceTemplates] = useState( + inspectorClient?.getResourceTemplates() ?? [], + ); const [prompts, setPrompts] = useState( inspectorClient?.getPrompts() ?? [], ); @@ -75,6 +79,7 @@ export function useInspectorClient( setFetchRequests([]); setTools([]); setResources([]); + setResourceTemplates([]); setPrompts([]); setCapabilities(undefined); setServerInfo(undefined); @@ -89,6 +94,7 @@ export function useInspectorClient( setFetchRequests(inspectorClient.getFetchRequests()); setTools(inspectorClient.getTools()); setResources(inspectorClient.getResources()); + setResourceTemplates(inspectorClient.getResourceTemplates()); setPrompts(inspectorClient.getPrompts()); setCapabilities(inspectorClient.getCapabilities()); setServerInfo(inspectorClient.getServerInfo()); @@ -127,6 +133,11 @@ export function useInspectorClient( setResources(customEvent.detail); }; + const onResourceTemplatesChange = (event: Event) => { + const customEvent = event as CustomEvent; + setResourceTemplates(customEvent.detail); + }; + const onPromptsChange = (event: Event) => { const customEvent = event as CustomEvent; setPrompts(customEvent.detail); @@ -157,6 +168,10 @@ export function useInspectorClient( ); inspectorClient.addEventListener("toolsChange", onToolsChange); inspectorClient.addEventListener("resourcesChange", onResourcesChange); + inspectorClient.addEventListener( + "resourceTemplatesChange", + onResourceTemplatesChange, + ); inspectorClient.addEventListener("promptsChange", onPromptsChange); inspectorClient.addEventListener( "capabilitiesChange", @@ -182,6 +197,10 @@ export function useInspectorClient( ); inspectorClient.removeEventListener("toolsChange", onToolsChange); inspectorClient.removeEventListener("resourcesChange", onResourcesChange); + inspectorClient.removeEventListener( + "resourceTemplatesChange", + onResourceTemplatesChange, + ); inspectorClient.removeEventListener("promptsChange", onPromptsChange); inspectorClient.removeEventListener( "capabilitiesChange", @@ -215,6 +234,7 @@ export function useInspectorClient( fetchRequests, tools, resources, + resourceTemplates, prompts, capabilities, serverInfo, diff --git a/shared/test/composable-test-server.ts b/shared/test/composable-test-server.ts new file mode 100644 index 000000000..1acf5146e --- /dev/null +++ b/shared/test/composable-test-server.ts @@ -0,0 +1,261 @@ +/** + * Composable Test Server + * + * Provides types and functions for creating MCP test servers from configuration. + * This allows composing MCP test servers with different capabilities, tools, resources, and prompts. + */ + +import { + McpServer, + ResourceTemplate, +} from "@modelcontextprotocol/sdk/server/mcp.js"; +import type { Implementation } from "@modelcontextprotocol/sdk/types.js"; +import { SetLevelRequestSchema } from "@modelcontextprotocol/sdk/types.js"; +import { ZodRawShapeCompat } from "@modelcontextprotocol/sdk/server/zod-compat.js"; + +type ToolInputSchema = ZodRawShapeCompat; +type PromptArgsSchema = ZodRawShapeCompat; + +export interface ToolDefinition { + name: string; + description: string; + inputSchema?: ToolInputSchema; + handler: (params: Record) => Promise; +} + +export interface ResourceDefinition { + uri: string; + name: string; + description?: string; + mimeType?: string; + text?: string; +} + +export interface PromptDefinition { + name: string; + description?: string; + promptString: string; // The prompt text with optional {argName} placeholders + argsSchema?: PromptArgsSchema; +} + +export interface ResourceTemplateDefinition { + name: string; + uriTemplate: string; // URI template with {variable} placeholders (RFC 6570) + description?: string; + inputSchema?: ZodRawShapeCompat; // Schema for template variables + handler: ( + uri: URL, + params: Record, + ) => Promise<{ + contents: Array<{ uri: string; mimeType?: string; text: string }>; + }>; +} + +/** + * Configuration for composing an MCP server + */ +export interface ServerConfig { + serverInfo: Implementation; // Server metadata (name, version, etc.) - required + tools?: ToolDefinition[]; // Tools to register (optional, empty array means no tools, but tools capability is still advertised) + resources?: ResourceDefinition[]; // Resources to register (optional, empty array means no resources, but resources capability is still advertised) + resourceTemplates?: ResourceTemplateDefinition[]; // Resource templates to register (optional, empty array means no templates, but resources capability is still advertised) + prompts?: PromptDefinition[]; // Prompts to register (optional, empty array means no prompts, but prompts capability is still advertised) + logging?: boolean; // Whether to advertise logging capability (default: false) + onLogLevelSet?: (level: string) => void; // Optional callback when log level is set (for testing) + onRegisterResource?: ( + resource: ResourceDefinition, + ) => + | (() => Promise<{ + contents: Array<{ uri: string; mimeType?: string; text: string }>; + }>) + | undefined; // Optional callback to customize resource handler during registration + serverType?: "sse" | "streamable-http"; // Transport type (default: "streamable-http") + port?: number; // Port to use (optional, will find available port if not specified) +} + +/** + * Create and configure an McpServer instance from ServerConfig + * This centralizes the setup logic shared between HTTP and stdio test servers + */ +export function createMcpServer(config: ServerConfig): McpServer { + // Build capabilities based on config + const capabilities: { + tools?: {}; + resources?: {}; + prompts?: {}; + logging?: {}; + } = {}; + + if (config.tools !== undefined) { + capabilities.tools = {}; + } + if ( + config.resources !== undefined || + config.resourceTemplates !== undefined + ) { + capabilities.resources = {}; + } + if (config.prompts !== undefined) { + capabilities.prompts = {}; + } + if (config.logging === true) { + capabilities.logging = {}; + } + + // Create the server with capabilities + const mcpServer = new McpServer(config.serverInfo, { + capabilities, + }); + + // Set up logging handler if logging is enabled + if (config.logging === true) { + mcpServer.server.setRequestHandler( + SetLevelRequestSchema, + async (request) => { + // Call optional callback if provided (for testing) + if (config.onLogLevelSet) { + config.onLogLevelSet(request.params.level); + } + // Return empty result as per MCP spec + return {}; + }, + ); + } + + // Set up tools + if (config.tools && config.tools.length > 0) { + for (const tool of config.tools) { + mcpServer.registerTool( + tool.name, + { + description: tool.description, + inputSchema: tool.inputSchema, + }, + async (args) => { + const result = await tool.handler(args as Record); + // Handle different return types from tool handlers + // If handler returns content array directly (like get-annotated-message), use it + if (result && Array.isArray(result.content)) { + return { content: result.content }; + } + // If handler returns message (like echo), format it + if (result && typeof result.message === "string") { + return { + content: [ + { + type: "text", + text: result.message, + }, + ], + }; + } + // Otherwise, stringify the result + return { + content: [ + { + type: "text", + text: JSON.stringify(result), + }, + ], + }; + }, + ); + } + } + + // Set up resources + if (config.resources && config.resources.length > 0) { + for (const resource of config.resources) { + // Check if there's a custom handler from the callback + const customHandler = config.onRegisterResource + ? config.onRegisterResource(resource) + : undefined; + + mcpServer.registerResource( + resource.name, + resource.uri, + { + description: resource.description, + mimeType: resource.mimeType, + }, + customHandler || + (async () => { + return { + contents: [ + { + uri: resource.uri, + mimeType: resource.mimeType || "text/plain", + text: resource.text ?? "", + }, + ], + }; + }), + ); + } + } + + // Set up resource templates + if (config.resourceTemplates && config.resourceTemplates.length > 0) { + for (const template of config.resourceTemplates) { + // ResourceTemplate is a class - create an instance with the URI template string and callbacks + const resourceTemplate = new ResourceTemplate(template.uriTemplate, { + list: undefined, // We don't support listing resources from templates + complete: undefined, // We don't support completion for template variables + }); + + mcpServer.registerResource( + template.name, + resourceTemplate, + { + description: template.description, + }, + async (uri: URL, variables: Record, extra?: any) => { + const result = await template.handler(uri, variables); + return result; + }, + ); + } + } + + // Set up prompts + if (config.prompts && config.prompts.length > 0) { + for (const prompt of config.prompts) { + mcpServer.registerPrompt( + prompt.name, + { + description: prompt.description, + argsSchema: prompt.argsSchema, + }, + async (args) => { + let text = prompt.promptString; + + // If args are provided, substitute them into the prompt string + // Replace {argName} with the actual value + if (args && typeof args === "object") { + for (const [key, value] of Object.entries(args)) { + const placeholder = `{${key}}`; + text = text.replace( + new RegExp(placeholder.replace(/[{}]/g, "\\$&"), "g"), + String(value), + ); + } + } + + return { + messages: [ + { + role: "user", + content: { + type: "text", + text, + }, + }, + ], + }; + }, + ); + } + } + + return mcpServer; +} diff --git a/shared/test/test-server-fixtures.ts b/shared/test/test-server-fixtures.ts index bec839ab3..b1af76b9c 100644 --- a/shared/test/test-server-fixtures.ts +++ b/shared/test/test-server-fixtures.ts @@ -1,47 +1,29 @@ /** - * Shared types and test fixtures for composable MCP test servers + * Shared test fixtures for composable MCP test servers + * + * This module provides helper functions for creating test tools, prompts, and resources. + * For the core composable server types and createMcpServer function, see composable-test-server.ts */ -import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; -import type { Implementation } from "@modelcontextprotocol/sdk/types.js"; import * as z from "zod/v4"; -import { ZodRawShapeCompat } from "@modelcontextprotocol/sdk/server/zod-compat.js"; - -type ToolInputSchema = ZodRawShapeCompat; - -export interface ToolDefinition { - name: string; - description: string; - inputSchema?: ToolInputSchema; - handler: (params: Record) => Promise; -} - -export interface ResourceDefinition { - uri: string; - name: string; - description?: string; - mimeType?: string; - text?: string; -} - -type PromptArgsSchema = ZodRawShapeCompat; - -export interface PromptDefinition { - name: string; - description?: string; - argsSchema?: PromptArgsSchema; -} +import type { Implementation } from "@modelcontextprotocol/sdk/types.js"; +import type { + ToolDefinition, + ResourceDefinition, + PromptDefinition, + ResourceTemplateDefinition, + ServerConfig, +} from "./composable-test-server.js"; -// This allows us to compose tests servers using the metadata and features we want in a given scenario -export interface ServerConfig { - serverInfo: Implementation; // Server metadata (name, version, etc.) - required - tools?: ToolDefinition[]; // Tools to register (optional, empty array means no tools, but tools capability is still advertised) - resources?: ResourceDefinition[]; // Resources to register (optional, empty array means no resources, but resources capability is still advertised) - prompts?: PromptDefinition[]; // Prompts to register (optional, empty array means no prompts, but prompts capability is still advertised) - logging?: boolean; // Whether to advertise logging capability (default: false) - serverType?: "sse" | "streamable-http"; // Transport type (default: "streamable-http") - port?: number; // Port to use (optional, will find available port if not specified) -} +// Re-export types and functions from composable-test-server for backward compatibility +export type { + ToolDefinition, + ResourceDefinition, + PromptDefinition, + ResourceTemplateDefinition, + ServerConfig, +} from "./composable-test-server.js"; +export { createMcpServer } from "./composable-test-server.js"; /** * Create an "echo" tool that echoes back the input message @@ -147,6 +129,7 @@ export function createSimplePrompt(): PromptDefinition { return { name: "simple-prompt", description: "A simple prompt for testing", + promptString: "This is a simple prompt for testing purposes.", }; } @@ -157,6 +140,7 @@ export function createArgsPrompt(): PromptDefinition { return { name: "args-prompt", description: "A prompt that accepts arguments for testing", + promptString: "This is a prompt with arguments: city={city}, state={state}", argsSchema: { city: z.string().describe("City name"), state: z.string().describe("State name"), @@ -247,6 +231,68 @@ export function createTestServerInfo( }; } +/** + * Create a "file" resource template that reads files by path + */ +export function createFileResourceTemplate(): ResourceTemplateDefinition { + return { + name: "file", + uriTemplate: "file:///{path}", + description: "Read a file by path", + inputSchema: { + path: z.string().describe("File path to read"), + }, + handler: async (uri: URL, params: Record) => { + const path = params.path as string; + // For testing, return a mock file content + return { + contents: [ + { + uri: uri.toString(), + mimeType: "text/plain", + text: `Mock file content for: ${path}\nThis is a test resource template.`, + }, + ], + }; + }, + }; +} + +/** + * Create a "user" resource template that returns user data by ID + */ +export function createUserResourceTemplate(): ResourceTemplateDefinition { + return { + name: "user", + uriTemplate: "user://{userId}", + description: "Get user data by ID", + inputSchema: { + userId: z.string().describe("User ID"), + }, + handler: async (uri: URL, params: Record) => { + const userId = params.userId as string; + return { + contents: [ + { + uri: uri.toString(), + mimeType: "application/json", + text: JSON.stringify( + { + id: userId, + name: `User ${userId}`, + email: `user${userId}@example.com`, + role: "test-user", + }, + null, + 2, + ), + }, + ], + }; + }, + }; +} + /** * Get default server config with common test tools, prompts, and resources */ @@ -265,5 +311,9 @@ export function getDefaultServerConfig(): ServerConfig { createTestEnvResource(), createTestArgvResource(), ], + resourceTemplates: [ + createFileResourceTemplate(), + createUserResourceTemplate(), + ], }; } diff --git a/shared/test/test-server-http.ts b/shared/test/test-server-http.ts index 9a9fff43b..911776191 100644 --- a/shared/test/test-server-http.ts +++ b/shared/test/test-server-http.ts @@ -1,7 +1,7 @@ import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; +import { createMcpServer } from "./test-server-fixtures.js"; import { StreamableHTTPServerTransport } from "@modelcontextprotocol/sdk/server/streamableHttp.js"; import { SSEServerTransport } from "@modelcontextprotocol/sdk/server/sse.js"; -import { SetLevelRequestSchema } from "@modelcontextprotocol/sdk/types.js"; import type { Request, Response } from "express"; import express from "express"; import { createServer as createHttpServer, Server as HttpServer } from "http"; @@ -73,120 +73,14 @@ export class TestServerHttp { constructor(config: ServerConfig) { this.config = config; - const capabilities: { - tools?: {}; - resources?: {}; - prompts?: {}; - logging?: {}; - } = {}; - - // Only include capabilities for features that are present in config - if (config.tools !== undefined) { - capabilities.tools = {}; - } - if (config.resources !== undefined) { - capabilities.resources = {}; - } - if (config.prompts !== undefined) { - capabilities.prompts = {}; - } - if (config.logging === true) { - capabilities.logging = {}; - } - - this.mcpServer = new McpServer(config.serverInfo, { - capabilities, - }); - - this.setupHandlers(); - if (config.logging === true) { - this.setupLoggingHandler(); - } - } - - private setupHandlers() { - // Set up tools - if (this.config.tools && this.config.tools.length > 0) { - for (const tool of this.config.tools) { - this.mcpServer.registerTool( - tool.name, - { - description: tool.description, - inputSchema: tool.inputSchema, - }, - async (args) => { - const result = await tool.handler(args as Record); - return { - content: [{ type: "text", text: JSON.stringify(result) }], - }; - }, - ); - } - } - - // Set up resources - if (this.config.resources && this.config.resources.length > 0) { - for (const resource of this.config.resources) { - this.mcpServer.registerResource( - resource.name, - resource.uri, - { - description: resource.description, - mimeType: resource.mimeType, - }, - async () => { - return { - contents: [ - { - uri: resource.uri, - mimeType: resource.mimeType || "text/plain", - text: resource.text || "", - }, - ], - }; - }, - ); - } - } - - // Set up prompts - if (this.config.prompts && this.config.prompts.length > 0) { - for (const prompt of this.config.prompts) { - this.mcpServer.registerPrompt( - prompt.name, - { - description: prompt.description, - argsSchema: prompt.argsSchema, - }, - async (args) => { - // Return a simple prompt response - return { - messages: [ - { - role: "user", - content: { - type: "text", - text: `Prompt: ${prompt.name}${args ? ` with args: ${JSON.stringify(args)}` : ""}`, - }, - }, - ], - }; - }, - ); - } - } - } - - private setupLoggingHandler() { - // Intercept logging/setLevel requests to track the level - this.mcpServer.server.setRequestHandler( - SetLevelRequestSchema, - async (request) => { - this.currentLogLevel = request.params.level; - // Return empty result as per MCP spec - return {}; + // Pass callback to track log level for testing + const configWithCallback: ServerConfig = { + ...config, + onLogLevelSet: (level: string) => { + this.currentLogLevel = level; }, - ); + }; + this.mcpServer = createMcpServer(configWithCallback); } /** diff --git a/shared/test/test-server-stdio.ts b/shared/test/test-server-stdio.ts index bf6b614f0..32a9166ae 100644 --- a/shared/test/test-server-stdio.ts +++ b/shared/test/test-server-stdio.ts @@ -17,7 +17,10 @@ import type { PromptDefinition, ResourceDefinition, } from "./test-server-fixtures.js"; -import { getDefaultServerConfig } from "./test-server-fixtures.js"; +import { + getDefaultServerConfig, + createMcpServer, +} from "./test-server-fixtures.js"; const __dirname = dirname(fileURLToPath(import.meta.url)); @@ -27,95 +30,26 @@ export class TestServerStdio { private transport?: StdioServerTransport; constructor(config: ServerConfig) { - this.config = config; - const capabilities: { - tools?: {}; - resources?: {}; - prompts?: {}; - logging?: {}; - } = {}; - - // Only include capabilities for features that are present in config - if (config.tools !== undefined) { - capabilities.tools = {}; - } - if (config.resources !== undefined) { - capabilities.resources = {}; - } - if (config.prompts !== undefined) { - capabilities.prompts = {}; - } - if (config.logging === true) { - capabilities.logging = {}; - } - - this.mcpServer = new McpServer(config.serverInfo, { - capabilities, - }); - - this.setupHandlers(); - } - - private setupHandlers() { - // Set up tools - if (this.config.tools && this.config.tools.length > 0) { - for (const tool of this.config.tools) { - this.mcpServer.registerTool( - tool.name, - { - description: tool.description, - inputSchema: tool.inputSchema, - }, - async (args) => { - const result = await tool.handler(args as Record); - // If handler returns content array directly (like get-annotated-message), use it - if (result && Array.isArray(result.content)) { - return { content: result.content }; - } - // If handler returns message (like echo), format it - if (result && typeof result.message === "string") { - return { - content: [ - { - type: "text", - text: result.message, - }, - ], - }; - } - // Otherwise, stringify the result - return { - content: [ - { - type: "text", - text: JSON.stringify(result), - }, - ], - }; - }, - ); - } - } - - // Set up resources - if (this.config.resources && this.config.resources.length > 0) { - for (const resource of this.config.resources) { - this.mcpServer.registerResource( - resource.name, - resource.uri, - { - description: resource.description, - mimeType: resource.mimeType, - }, - async () => { - // For dynamic resources, get fresh text - let text = resource.text; + // Provide callback to customize resource handlers for stdio-specific dynamic resources + const configWithCallback: ServerConfig = { + ...config, + onRegisterResource: (resource: ResourceDefinition) => { + // Only provide custom handler for dynamic resources + if ( + resource.name === "test-cwd" || + resource.name === "test-env" || + resource.name === "test-argv" + ) { + return async () => { + let text: string; if (resource.name === "test-cwd") { text = process.cwd(); } else if (resource.name === "test-env") { text = JSON.stringify(process.env, null, 2); } else if (resource.name === "test-argv") { text = JSON.stringify(process.argv, null, 2); + } else { + text = resource.text ?? ""; } return { @@ -123,56 +57,18 @@ export class TestServerStdio { { uri: resource.uri, mimeType: resource.mimeType || "text/plain", - text: text || "", + text, }, ], }; - }, - ); - } - } - - // Set up prompts - if (this.config.prompts && this.config.prompts.length > 0) { - for (const prompt of this.config.prompts) { - this.mcpServer.registerPrompt( - prompt.name, - { - description: prompt.description, - argsSchema: prompt.argsSchema, - }, - async (args) => { - if (prompt.name === "args-prompt" && args) { - const city = (args as any).city as string; - const state = (args as any).state as string; - return { - messages: [ - { - role: "user", - content: { - type: "text", - text: `This is a prompt with arguments: city=${city}, state=${state}`, - }, - }, - ], - }; - } else { - return { - messages: [ - { - role: "user", - content: { - type: "text", - text: "This is a simple prompt for testing purposes.", - }, - }, - ], - }; - } - }, - ); - } - } + }; + } + // Return undefined to use default handler + return undefined; + }, + }; + this.config = config; + this.mcpServer = createMcpServer(configWithCallback); } /** diff --git a/tui/src/App.tsx b/tui/src/App.tsx index c2819d59d..ce0fd8c36 100644 --- a/tui/src/App.tsx +++ b/tui/src/App.tsx @@ -19,6 +19,8 @@ import { NotificationsTab } from "./components/NotificationsTab.js"; import { HistoryTab } from "./components/HistoryTab.js"; import { RequestsTab } from "./components/RequestsTab.js"; import { ToolTestModal } from "./components/ToolTestModal.js"; +import { ResourceTestModal } from "./components/ResourceTestModal.js"; +import { PromptTestModal } from "./components/PromptTestModal.js"; import { DetailsModal } from "./components/DetailsModal.js"; const __filename = fileURLToPath(import.meta.url); @@ -90,6 +92,26 @@ function App({ configFile }: AppProps) { inspectorClient: InspectorClient | null; } | null>(null); + // Resource test modal state + const [resourceTestModal, setResourceTestModal] = useState<{ + template: { + name: string; + uriTemplate: string; + description?: string; + }; + inspectorClient: InspectorClient | null; + } | null>(null); + + // Prompt test modal state + const [promptTestModal, setPromptTestModal] = useState<{ + prompt: { + name: string; + description?: string; + arguments?: any[]; + }; + inspectorClient: InspectorClient | null; + } | null>(null); + // Details modal state const [detailsModal, setDetailsModal] = useState<{ title: string; @@ -191,6 +213,7 @@ function App({ configFile }: AppProps) { fetchRequests: inspectorFetchRequests, tools: inspectorTools, resources: inspectorResources, + resourceTemplates: inspectorResourceTemplates, prompts: inspectorPrompts, capabilities: inspectorCapabilities, serverInfo: inspectorServerInfo, @@ -206,7 +229,7 @@ function App({ configFile }: AppProps) { try { await connectInspector(); - // InspectorClient automatically fetches server data (capabilities, tools, resources, prompts, etc.) + // InspectorClient automatically fetches server data (capabilities, tools, resources, resource templates, prompts, etc.) // on connect, so we don't need to do anything here } catch (error) { // Error handling is done by InspectorClient and will be reflected in status @@ -230,6 +253,7 @@ function App({ configFile }: AppProps) { serverInfo: inspectorServerInfo, instructions: inspectorInstructions, resources: inspectorResources, + resourceTemplates: inspectorResourceTemplates, prompts: inspectorPrompts, tools: inspectorTools, stderrLogs: inspectorStderrLogs, // InspectorClient manages this @@ -241,6 +265,7 @@ function App({ configFile }: AppProps) { inspectorServerInfo, inspectorInstructions, inspectorResources, + inspectorResourceTemplates, inspectorPrompts, inspectorTools, inspectorStderrLogs, @@ -576,7 +601,7 @@ function App({ configFile }: AppProps) { useInput((input: string, key: Key) => { // Don't process input when modal is open - if (toolTestModal || detailsModal) { + if (toolTestModal || resourceTestModal || promptTestModal || detailsModal) { return; } @@ -908,11 +933,12 @@ function App({ configFile }: AppProps) { )} {activeTab === "resources" && currentServerState?.status === "connected" && - inspectorClient ? ( + selectedInspectorClient ? ( @@ -931,15 +957,28 @@ function App({ configFile }: AppProps) { content: renderResourceDetails(resource), }) } - modalOpen={!!(toolTestModal || detailsModal)} + onFetchResource={(resource) => { + // Resource fetching is handled internally by ResourcesTab + // This callback is just for triggering the fetch + }} + onFetchTemplate={(template) => { + setResourceTestModal({ + template, + inspectorClient: selectedInspectorClient, + }); + }} + modalOpen={ + !!(toolTestModal || resourceTestModal || detailsModal) + } /> ) : activeTab === "prompts" && currentServerState?.status === "connected" && - inspectorClient ? ( + selectedInspectorClient ? ( @@ -958,7 +997,20 @@ function App({ configFile }: AppProps) { content: renderPromptDetails(prompt), }) } - modalOpen={!!(toolTestModal || detailsModal)} + onFetchPrompt={(prompt) => { + setPromptTestModal({ + prompt, + inspectorClient: selectedInspectorClient, + }); + }} + modalOpen={ + !!( + toolTestModal || + resourceTestModal || + promptTestModal || + detailsModal + ) + } /> ) : activeTab === "tools" && currentServerState?.status === "connected" && @@ -1087,6 +1139,27 @@ function App({ configFile }: AppProps) { /> )} + {/* Resource Test Modal - rendered at App level for full screen overlay */} + {resourceTestModal && ( + setResourceTestModal(null)} + /> + )} + + {promptTestModal && ( + setPromptTestModal(null)} + /> + )} + {/* Details Modal - rendered at App level for full screen overlay */} {detailsModal && ( void; +} + +type ModalState = "form" | "loading" | "results"; + +interface PromptResult { + input: Record; + output: any; + error?: string; + errorDetails?: any; + duration: number; +} + +export function PromptTestModal({ + prompt, + inspectorClient, + width, + height, + onClose, +}: PromptTestModalProps) { + const [state, setState] = useState("form"); + const [result, setResult] = useState(null); + const scrollViewRef = React.useRef(null); + + // Use full terminal dimensions instead of passed dimensions + const [terminalDimensions, setTerminalDimensions] = React.useState({ + width: process.stdout.columns || width, + height: process.stdout.rows || height, + }); + + React.useEffect(() => { + const updateDimensions = () => { + setTerminalDimensions({ + width: process.stdout.columns || width, + height: process.stdout.rows || height, + }); + }; + process.stdout.on("resize", updateDimensions); + updateDimensions(); + return () => { + process.stdout.off("resize", updateDimensions); + }; + }, [width, height]); + + const formStructure = promptArgsToForm( + prompt.arguments || [], + prompt.name || "Unknown Prompt", + ); + + // Reset state when modal closes + React.useEffect(() => { + return () => { + // Cleanup: reset state when component unmounts + setState("form"); + setResult(null); + }; + }, []); + + // Handle all input when modal is open - prevents input from reaching underlying components + // When in form mode, only handle escape (form handles its own input) + // When in results mode, handle scrolling keys + useInput( + (input: string, key: Key) => { + // Always handle escape to close modal + if (key.escape) { + setState("form"); + setResult(null); + onClose(); + return; + } + + if (state === "form") { + // In form mode, let the form handle all other input + // Don't process anything else - this prevents input from reaching underlying components + return; + } + + if (state === "results") { + // Allow scrolling in results view + if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } + } + }, + { isActive: true }, + ); + + const handleFormSubmit = async (values: Record) => { + if (!inspectorClient || !prompt) return; + + setState("loading"); + const startTime = Date.now(); + + try { + // Get the prompt using the provided arguments + const response = await inspectorClient.getPrompt(prompt.name, values); + + const duration = Date.now() - startTime; + + setResult({ + input: values, + output: response, + duration, + }); + setState("results"); + } catch (error) { + const duration = Date.now() - startTime; + const errorMessage = getErrorMessage(error); + + // Extract detailed error information + const errorObj: any = { + message: errorMessage, + }; + if (error instanceof Error) { + errorObj.name = error.name; + errorObj.stack = error.stack; + } else if (error && typeof error === "object") { + // Try to extract more details from error object + Object.assign(errorObj, error); + } else { + errorObj.error = String(error); + } + + setResult({ + input: values, + output: null, + error: errorMessage, + errorDetails: errorObj, + duration, + }); + setState("results"); + } + }; + + // Calculate modal dimensions - use almost full screen + const modalWidth = terminalDimensions.width - 2; + const modalHeight = terminalDimensions.height - 2; + + return ( + + {/* Modal Content */} + + {/* Header */} + + + {formStructure.title} + + + (Press ESC to close) + + + {/* Content Area */} + + {state === "form" && ( + + {prompt.description && ( + + {prompt.description} + + )} + + handleFormSubmit(values as Record) + } + /> + + )} + + {state === "loading" && ( + + Getting prompt... + + )} + + {state === "results" && result && ( + + + {/* Timing */} + + + Duration: {result.duration}ms + + + + {/* Input */} + {Object.keys(result.input).length > 0 && ( + + + Arguments: + + + + {JSON.stringify(result.input, null, 2)} + + + + )} + + {/* Output or Error */} + {result.error ? ( + + + + Error: + + + + {result.error} + + {result.errorDetails && ( + <> + + + Error Details: + + + + + {JSON.stringify(result.errorDetails, null, 2)} + + + + )} + + ) : ( + + + Prompt Messages: + + + + {JSON.stringify(result.output, null, 2)} + + + + )} + + + )} + + + + ); +} diff --git a/tui/src/components/PromptsTab.tsx b/tui/src/components/PromptsTab.tsx index 5a2180ae6..ec0c61142 100644 --- a/tui/src/components/PromptsTab.tsx +++ b/tui/src/components/PromptsTab.tsx @@ -1,36 +1,71 @@ import React, { useState, useEffect, useRef } from "react"; import { Box, Text, useInput, type Key } from "ink"; import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; -import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; +import type { InspectorClient } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; interface PromptsTabProps { prompts: any[]; - client: Client | null; + client: any; // SDK Client (from inspectorClient.getClient()) + inspectorClient: InspectorClient | null; // InspectorClient for getPrompt width: number; height: number; onCountChange?: (count: number) => void; focusedPane?: "list" | "details" | null; onViewDetails?: (prompt: any) => void; + onFetchPrompt?: (prompt: any) => void; modalOpen?: boolean; } export function PromptsTab({ prompts, client, + inspectorClient, width, height, onCountChange, focusedPane = null, onViewDetails, + onFetchPrompt, modalOpen = false, }: PromptsTabProps) { const [selectedIndex, setSelectedIndex] = useState(0); const [error, setError] = useState(null); const scrollViewRef = useRef(null); + const listScrollViewRef = useRef(null); // Handle arrow key navigation when focused useInput( (input: string, key: Key) => { + // Handle Enter key to fetch prompt (works from both list and details) + if (key.return && selectedPrompt && inspectorClient && onFetchPrompt) { + // If prompt has arguments, open modal to collect them + // Otherwise, fetch directly + if (selectedPrompt.arguments && selectedPrompt.arguments.length > 0) { + onFetchPrompt(selectedPrompt); + } else { + // No arguments, fetch directly + (async () => { + try { + const response = await inspectorClient.getPrompt( + selectedPrompt.name, + ); + // Show result in details modal + if (onViewDetails) { + onViewDetails({ + ...selectedPrompt, + result: response, + }); + } + } catch (error) { + setError( + error instanceof Error ? error.message : "Failed to get prompt", + ); + } + })(); + } + return; + } + if (focusedPane === "list") { // Navigate the list if (key.upArrow && selectedIndex > 0) { @@ -75,6 +110,13 @@ export function PromptsTab({ scrollViewRef.current?.scrollTo(0); }, [selectedIndex]); + // Auto-scroll list to show selected item + useEffect(() => { + if (listScrollViewRef.current && selectedIndex >= 0 && prompts.length > 0) { + listScrollViewRef.current.scrollTo(selectedIndex); + } + }, [selectedIndex, prompts.length]); + // Reset selected index when prompts array changes (different server) useEffect(() => { setSelectedIndex(0); @@ -116,7 +158,7 @@ export function PromptsTab({ No prompts available ) : ( - + {prompts.map((prompt, index) => { const isSelected = index === selectedIndex; return ( @@ -128,7 +170,7 @@ export function PromptsTab({ ); })} - + )} @@ -196,6 +238,11 @@ export function PromptsTab({ ))} )} + + {/* Enter to Get Prompt message */} + + [Enter to Get Prompt] + {/* Fixed footer - only show when details pane is focused */} diff --git a/tui/src/components/ResourceTestModal.tsx b/tui/src/components/ResourceTestModal.tsx new file mode 100644 index 000000000..b5631cfd8 --- /dev/null +++ b/tui/src/components/ResourceTestModal.tsx @@ -0,0 +1,324 @@ +import React, { useState } from "react"; +import { Box, Text, useInput, type Key } from "ink"; +import { Form } from "ink-form"; +import { InspectorClient } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; +import { uriTemplateToForm } from "../utils/uriTemplateToForm.js"; +import { UriTemplate } from "@modelcontextprotocol/sdk/shared/uriTemplate.js"; +import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; + +// Helper to extract error message from various error types +function getErrorMessage(error: unknown): string { + if (error instanceof Error) { + return error.message; + } + if (typeof error === "string") { + return error; + } + if (error && typeof error === "object" && "message" in error) { + return String(error.message); + } + return "Unknown error"; +} + +interface ResourceTestModalProps { + template: { + name: string; + uriTemplate: string; + description?: string; + }; + inspectorClient: InspectorClient | null; + width: number; + height: number; + onClose: () => void; +} + +type ModalState = "form" | "loading" | "results"; + +interface ResourceResult { + input: Record; + output: any; + error?: string; + errorDetails?: any; + duration: number; + uri: string; +} + +export function ResourceTestModal({ + template, + inspectorClient, + width, + height, + onClose, +}: ResourceTestModalProps) { + const [state, setState] = useState("form"); + const [result, setResult] = useState(null); + const scrollViewRef = React.useRef(null); + + // Use full terminal dimensions instead of passed dimensions + const [terminalDimensions, setTerminalDimensions] = React.useState({ + width: process.stdout.columns || width, + height: process.stdout.rows || height, + }); + + React.useEffect(() => { + const updateDimensions = () => { + setTerminalDimensions({ + width: process.stdout.columns || width, + height: process.stdout.rows || height, + }); + }; + process.stdout.on("resize", updateDimensions); + updateDimensions(); + return () => { + process.stdout.off("resize", updateDimensions); + }; + }, [width, height]); + + const formStructure = uriTemplateToForm( + template.uriTemplate, + template.name || "Unknown Template", + ); + + // Reset state when modal closes + React.useEffect(() => { + return () => { + // Cleanup: reset state when component unmounts + setState("form"); + setResult(null); + }; + }, []); + + // Handle all input when modal is open - prevents input from reaching underlying components + // When in form mode, only handle escape (form handles its own input) + // When in results mode, handle scrolling keys + useInput( + (input: string, key: Key) => { + // Always handle escape to close modal + if (key.escape) { + setState("form"); + setResult(null); + onClose(); + return; + } + + if (state === "form") { + // In form mode, let the form handle all other input + // Don't process anything else - this prevents input from reaching underlying components + return; + } + + if (state === "results") { + // Allow scrolling in results view + if (key.downArrow) { + scrollViewRef.current?.scrollBy(1); + } else if (key.upArrow) { + scrollViewRef.current?.scrollBy(-1); + } else if (key.pageDown) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(viewportHeight); + } else if (key.pageUp) { + const viewportHeight = + scrollViewRef.current?.getViewportHeight() || 1; + scrollViewRef.current?.scrollBy(-viewportHeight); + } + } + }, + { isActive: true }, + ); + + const handleFormSubmit = async (values: Record) => { + if (!inspectorClient || !template) return; + + setState("loading"); + const startTime = Date.now(); + + try { + // Expand the URI template with the provided values + const uriTemplate = new UriTemplate(template.uriTemplate); + const uri = uriTemplate.expand(values); + + // Read the resource using the expanded URI + const response = await inspectorClient.readResource(uri); + + const duration = Date.now() - startTime; + + setResult({ + input: values, + output: response, + duration, + uri, + }); + setState("results"); + } catch (error) { + const duration = Date.now() - startTime; + const errorMessage = getErrorMessage(error); + + // Try to expand URI even on error for display + let uri = template.uriTemplate; + try { + const uriTemplate = new UriTemplate(template.uriTemplate); + uri = uriTemplate.expand(values); + } catch { + // If expansion fails, use original template + } + + // Extract detailed error information + const errorObj: any = { + message: errorMessage, + }; + if (error instanceof Error) { + errorObj.name = error.name; + errorObj.stack = error.stack; + } else if (error && typeof error === "object") { + // Try to extract more details from error object + Object.assign(errorObj, error); + } else { + errorObj.error = String(error); + } + + setResult({ + input: values, + output: null, + error: errorMessage, + errorDetails: errorObj, + duration, + uri, + }); + setState("results"); + } + }; + + // Calculate modal dimensions - use almost full screen + const modalWidth = terminalDimensions.width - 2; + const modalHeight = terminalDimensions.height - 2; + + return ( + + {/* Modal Content */} + + {/* Header */} + + + {formStructure.title} + + + (Press ESC to close) + + + {/* Content Area */} + + {state === "form" && ( + + {template.description && ( + + {template.description} + + )} + + handleFormSubmit(values as Record) + } + /> + + )} + + {state === "loading" && ( + + Reading resource... + + )} + + {state === "results" && result && ( + + + {/* Timing */} + + + Duration: {result.duration}ms + + + + {/* URI */} + + + URI:{" "} + + {result.uri} + + + {/* Input */} + + + Template Values: + + + + {JSON.stringify(result.input, null, 2)} + + + + + {/* Output or Error */} + {result.error ? ( + + + + Error: + + + + {result.error} + + {result.errorDetails && ( + <> + + + Error Details: + + + + + {JSON.stringify(result.errorDetails, null, 2)} + + + + )} + + ) : ( + + + Resource Content: + + + + {JSON.stringify(result.output, null, 2)} + + + + )} + + + )} + + + + ); +} diff --git a/tui/src/components/ResourcesTab.tsx b/tui/src/components/ResourcesTab.tsx index 28f3f15c4..18c30c5c3 100644 --- a/tui/src/components/ResourcesTab.tsx +++ b/tui/src/components/ResourcesTab.tsx @@ -1,41 +1,98 @@ -import React, { useState, useEffect, useRef } from "react"; +import React, { useState, useEffect, useRef, useMemo } from "react"; import { Box, Text, useInput, type Key } from "ink"; import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; -import type { Client } from "@modelcontextprotocol/sdk/client/index.js"; +import type { InspectorClient } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; + +interface ResourceTemplate { + name: string; + uriTemplate: string; + description?: string; +} interface ResourcesTabProps { resources: any[]; - client: Client | null; + resourceTemplates?: ResourceTemplate[]; + inspectorClient: InspectorClient | null; width: number; height: number; onCountChange?: (count: number) => void; focusedPane?: "list" | "details" | null; onViewDetails?: (resource: any) => void; + onFetchResource?: (resource: any) => void; + onFetchTemplate?: (template: ResourceTemplate) => void; modalOpen?: boolean; } export function ResourcesTab({ resources, - client, + resourceTemplates = [], + inspectorClient, width, height, onCountChange, focusedPane = null, onViewDetails, + onFetchResource, + onFetchTemplate, modalOpen = false, }: ResourcesTabProps) { const [selectedIndex, setSelectedIndex] = useState(0); const [error, setError] = useState(null); + const [resourceContent, setResourceContent] = useState(null); + const [loading, setLoading] = useState(false); + const [shouldFetchResource, setShouldFetchResource] = useState( + null, + ); const scrollViewRef = useRef(null); + const listScrollViewRef = useRef(null); + + // Combined list: resources first, then templates - memoized to prevent unnecessary recalculations + const allItems = useMemo( + () => [ + ...resources.map((r) => ({ type: "resource" as const, data: r })), + ...resourceTemplates.map((t) => ({ type: "template" as const, data: t })), + ], + [resources, resourceTemplates], + ); + const totalCount = useMemo( + () => resources.length + resourceTemplates.length, + [resources.length, resourceTemplates.length], + ); + + // Calculate selectedItem before useInput to avoid stale closure + const selectedItem = useMemo( + () => allItems[selectedIndex] || null, + [allItems, selectedIndex], + ); // Handle arrow key navigation when focused useInput( (input: string, key: Key) => { + // Handle Enter key to fetch resource (works from both list and details) + if ( + key.return && + selectedItem && + inspectorClient && + (onFetchResource || onFetchTemplate) + ) { + if (selectedItem.type === "resource" && selectedItem.data.uri) { + // Trigger fetch for regular resource + setShouldFetchResource(selectedItem.data.uri); + if (onFetchResource) { + onFetchResource(selectedItem.data); + } + } else if (selectedItem.type === "template" && onFetchTemplate) { + // Open modal for template + onFetchTemplate(selectedItem.data); + } + return; + } + if (focusedPane === "list") { // Navigate the list if (key.upArrow && selectedIndex > 0) { setSelectedIndex(selectedIndex - 1); - } else if (key.downArrow && selectedIndex < resources.length - 1) { + } else if (key.downArrow && selectedIndex < totalCount - 1) { setSelectedIndex(selectedIndex + 1); } return; @@ -43,8 +100,8 @@ export function ResourcesTab({ if (focusedPane === "details") { // Handle '+' key to view in full screen modal - if (input === "+" && selectedResource && onViewDetails) { - onViewDetails(selectedResource); + if (input === "+" && resourceContent && onViewDetails) { + onViewDetails({ content: resourceContent }); return; } @@ -75,19 +132,71 @@ export function ResourcesTab({ scrollViewRef.current?.scrollTo(0); }, [selectedIndex]); - // Reset selected index when resources array changes (different server) + // Auto-scroll list to show selected item + useEffect(() => { + if (listScrollViewRef.current && selectedIndex >= 0 && totalCount > 0) { + listScrollViewRef.current.scrollTo(selectedIndex); + } + }, [selectedIndex, totalCount]); + + // Reset selected index when resources array reference changes + // The component key in App.tsx handles remounting on server change, + // so this only needs to handle updates for the same server + const prevResourcesRef = useRef(resources); useEffect(() => { - setSelectedIndex(0); + if (prevResourcesRef.current !== resources) { + setSelectedIndex(0); + setResourceContent(null); + setShouldFetchResource(null); + prevResourcesRef.current = resources; + } }, [resources]); - const selectedResource = resources[selectedIndex] || null; + const isResource = selectedItem?.type === "resource"; + const isTemplate = selectedItem?.type === "template"; + const selectedResource = isResource ? selectedItem.data : null; + const selectedTemplate = isTemplate ? selectedItem.data : null; + + // Fetch resource content when shouldFetchResource is set + useEffect(() => { + if (!shouldFetchResource || !inspectorClient) return; + + const fetchContent = async () => { + setLoading(true); + setError(null); + try { + const response = + await inspectorClient.readResource(shouldFetchResource); + setResourceContent(response); + } catch (err) { + setError( + err instanceof Error ? err.message : "Failed to read resource", + ); + setResourceContent(null); + } finally { + setLoading(false); + setShouldFetchResource(null); + } + }; + + fetchContent(); + }, [shouldFetchResource, inspectorClient]); const listWidth = Math.floor(width * 0.4); const detailWidth = width - listWidth; + // Update count when items change - use ref to track previous count and only call when it actually changes + const prevCountRef = useRef(totalCount); + useEffect(() => { + if (prevCountRef.current !== totalCount) { + prevCountRef.current = totalCount; + onCountChange?.(totalCount); + } + }, [totalCount, onCountChange]); + return ( - {/* Resources List */} + {/* Resources and Templates List */} - Resources ({resources.length}) + Resources ({totalCount}) {error ? ( {error} - ) : resources.length === 0 ? ( + ) : totalCount === 0 ? ( No resources available ) : ( - - {resources.map((resource, index) => { - const isSelected = index === selectedIndex; - return ( - - - {isSelected ? "▶ " : " "} - {resource.name || resource.uri || `Resource ${index + 1}`} + + {/* Resources Section */} + {resources.length > 0 && ( + <> + + + Resources - ); - })} - + {resources.map((resource, index) => { + const isSelected = + selectedIndex === index && + selectedItem?.type === "resource"; + return ( + + + {isSelected ? "▶ " : " "} + {resource.name || + resource.uri || + `Resource ${index + 1}`} + + + ); + })} + + )} + + {/* Resource Templates Section */} + {resourceTemplates.length > 0 && ( + <> + {resources.length > 0 && ( + + + + )} + + + Resource Templates + + + {resourceTemplates.map((template, index) => { + const templateIndex = resources.length + index; + const isSelected = + selectedIndex === templateIndex && + selectedItem?.type === "template"; + return ( + + + {isSelected ? "▶ " : " "} + {template.name || `Template ${index + 1}`} + + + ); + })} + + )} + )} @@ -155,8 +308,8 @@ export function ResourcesTab({ - {/* Scrollable content area - direct ScrollView with height prop like NotificationsTab */} - + {/* Scrollable content area */} + {/* Description */} {selectedResource.description && ( <> @@ -187,6 +340,96 @@ export function ResourcesTab({ MIME Type: {selectedResource.mimeType} )} + + {/* Resource Content */} + {loading && ( + + Loading resource content... + + )} + + {!loading && resourceContent && ( + <> + + Content: + + + + {JSON.stringify(resourceContent, null, 2)} + + + + )} + + {!loading && !resourceContent && selectedResource.uri && ( + + [Enter to Fetch Resource] + + )} + + + {/* Fixed footer - only show when details pane is focused */} + {focusedPane === "details" && ( + + + {resourceContent + ? "↑/↓ to scroll, + to zoom" + : "Enter to fetch, ↑/↓ to scroll"} + + + )} + + ) : selectedTemplate ? ( + <> + {/* Fixed header */} + + + {selectedTemplate.name} + + + + {/* Scrollable content area */} + + {/* Description */} + {selectedTemplate.description && ( + <> + {selectedTemplate.description + .split("\n") + .map((line: string, idx: number) => ( + + {line} + + ))} + + )} + + {/* URI Template */} + {selectedTemplate.uriTemplate && ( + + + URI Template: {selectedTemplate.uriTemplate} + + + )} + + + [Enter to Fetch Resource] + {/* Fixed footer - only show when details pane is focused */} @@ -198,14 +441,14 @@ export function ResourcesTab({ backgroundColor="gray" > - ↑/↓ to scroll, + to zoom + Enter to fetch )} ) : ( - Select a resource to view details + Select a resource or template to view details )} diff --git a/tui/src/components/ToolsTab.tsx b/tui/src/components/ToolsTab.tsx index cb8da53d5..78b6424e5 100644 --- a/tui/src/components/ToolsTab.tsx +++ b/tui/src/components/ToolsTab.tsx @@ -29,6 +29,7 @@ export function ToolsTab({ const [selectedIndex, setSelectedIndex] = useState(0); const [error, setError] = useState(null); const scrollViewRef = useRef(null); + const listScrollViewRef = useRef(null); const listWidth = Math.floor(width * 0.4); const detailWidth = width - listWidth; @@ -97,6 +98,13 @@ export function ToolsTab({ scrollViewRef.current?.scrollTo(0); }, [selectedIndex]); + // Auto-scroll list to show selected item + useEffect(() => { + if (listScrollViewRef.current && selectedIndex >= 0 && tools.length > 0) { + listScrollViewRef.current.scrollTo(selectedIndex); + } + }, [selectedIndex, tools.length]); + // Reset selected index when tools array changes (different server) useEffect(() => { setSelectedIndex(0); @@ -135,7 +143,7 @@ export function ToolsTab({ No tools available ) : ( - + {tools.map((tool, index) => { const isSelected = index === selectedIndex; return ( @@ -147,7 +155,7 @@ export function ToolsTab({ ); })} - + )} diff --git a/tui/src/utils/promptArgsToForm.ts b/tui/src/utils/promptArgsToForm.ts new file mode 100644 index 000000000..185f77da0 --- /dev/null +++ b/tui/src/utils/promptArgsToForm.ts @@ -0,0 +1,46 @@ +/** + * Converts prompt arguments to ink-form format + */ + +import type { FormStructure, FormSection, FormField } from "ink-form"; + +/** + * Converts prompt arguments array to ink-form structure + */ +export function promptArgsToForm( + promptArguments: any[], + promptName: string, +): FormStructure { + const fields: FormField[] = []; + + if (!promptArguments || promptArguments.length === 0) { + return { + title: `Get Prompt: ${promptName}`, + sections: [{ title: "Parameters", fields: [] }], + }; + } + + for (const arg of promptArguments) { + const field: FormField = { + name: arg.name, + label: arg.name, + type: "string", // Prompt arguments are always strings + required: arg.required !== false, // Default to required unless explicitly false + description: arg.description, + }; + + fields.push(field); + } + + const sections: FormSection[] = [ + { + title: "Prompt Arguments", + fields, + }, + ]; + + return { + title: `Get Prompt: ${promptName}`, + sections, + }; +} diff --git a/tui/src/utils/uriTemplateToForm.ts b/tui/src/utils/uriTemplateToForm.ts new file mode 100644 index 000000000..f8d2ee10b --- /dev/null +++ b/tui/src/utils/uriTemplateToForm.ts @@ -0,0 +1,47 @@ +/** + * Converts URI Template to ink-form format for resource templates + */ + +import type { FormStructure, FormSection, FormField } from "ink-form"; +import { UriTemplate } from "@modelcontextprotocol/sdk/shared/uriTemplate.js"; + +/** + * Converts a URI Template to ink-form structure + */ +export function uriTemplateToForm( + uriTemplate: string, + templateName: string, +): FormStructure { + const fields: FormField[] = []; + + try { + const template = new UriTemplate(uriTemplate); + const variableNames = template.variableNames || []; + + for (const variableName of variableNames) { + const field: FormField = { + name: variableName, + label: variableName, + type: "string", + required: false, // URI template variables are typically optional + }; + + fields.push(field); + } + } catch (error) { + // If parsing fails, return empty form + console.error("Failed to parse URI template:", error); + } + + const sections: FormSection[] = [ + { + title: "Template Variables", + fields, + }, + ]; + + return { + title: `Read Resource: ${templateName}`, + sections, + }; +} From e24a75bdfbb07c9af84a8c300d27fcace50acd0b Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Thu, 22 Jan 2026 11:54:30 -0800 Subject: [PATCH 26/44] Implement sampling capability in InspectorClient. Added support for handling sampling requests, including a new SamplingCreateMessage class. Enhanced tests for sampling functionality and server-initiated notifications. Added SSE support to streamable-http transport to support notifications, sampling, etc (with tests). --- cli/src/index.ts | 1 + docs/tui-web-client-feature-gaps.md | 18 ++ shared/__tests__/inspectorClient.test.ts | 275 ++++++++++++++++++++++- shared/mcp/index.ts | 2 +- shared/mcp/inspectorClient.ts | 137 +++++++++++ shared/test/composable-test-server.ts | 11 +- shared/test/test-server-fixtures.ts | 131 ++++++++++- shared/test/test-server-http.ts | 19 +- 8 files changed, 579 insertions(+), 15 deletions(-) diff --git a/cli/src/index.ts b/cli/src/index.ts index db41cb0c9..5c469ec27 100644 --- a/cli/src/index.ts +++ b/cli/src/index.ts @@ -172,6 +172,7 @@ async function callMethod(args: Args): Promise { clientIdentity, autoFetchServerContents: false, // CLI doesn't need auto-fetching, it calls methods directly initialLoggingLevel: "debug", // Set debug logging level for CLI + sample: false, // CLI doesn't need sampling capability }); try { diff --git a/docs/tui-web-client-feature-gaps.md b/docs/tui-web-client-feature-gaps.md index 8e644a278..e8a9b42c8 100644 --- a/docs/tui-web-client-feature-gaps.md +++ b/docs/tui-web-client-feature-gaps.md @@ -382,3 +382,21 @@ Based on this analysis, `InspectorClient` needs the following additions: - [Shared Code Architecture](./shared-code-architecture.md) - Overall architecture and integration plan - [InspectorClient Details](./inspector-client-details.svg) - Visual diagram of InspectorClient responsibilities + +## In Work + +### Sampling + +Instead of a boolean, we could use a callback that accepts the params from a sampling message and returns the response to a sampling message (if the callback is present, advertise sampling and also handle sampling/createMessage messages using the callback). Maybe? + +The webux shows a dialog (in a pane) for the user to completed and approve/reject the completion. We should copy that. + +But it would also be nice to have this supported in the InspectorClient somehow + +- For exmple, we could have a test fixture tool that triggered sampling +- And a sampling function that returned some result (via provided callback) +- Then we could test the sampling support in the InspectorClient (call tool, check result to make sure it includes expected sampling data) + +Could a callback provided to the InspectorClient trigger a UX action (modal or other) and then on completion could we complete the sampling request? + +- Would we need to have a separate sampling completion entrypoint? diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index a69afd25a..2e443c9df 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -1,5 +1,8 @@ import { describe, it, expect, beforeEach, afterEach } from "vitest"; -import { InspectorClient } from "../mcp/inspectorClient.js"; +import { + InspectorClient, + SamplingCreateMessage, +} from "../mcp/inspectorClient.js"; import { getTestMcpServerCommand } from "../test/test-server-stdio.js"; import { createTestServerHttp, @@ -9,8 +12,11 @@ import { createEchoTool, createTestServerInfo, createFileResourceTemplate, + createCollectSampleTool, + createSendNotificationTool, } from "../test/test-server-fixtures.js"; import type { MessageEntry } from "../mcp/types.js"; +import type { CreateMessageResult } from "@modelcontextprotocol/sdk/types.js"; describe("InspectorClient", () => { let client: InspectorClient; @@ -814,4 +820,271 @@ describe("InspectorClient", () => { expect(disconnectFired).toBe(true); }); }); + + describe("Sampling Requests", () => { + it("should handle sampling requests from server and respond", async () => { + // Create a test server with the collectSample tool + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createCollectSampleTool()], + serverType: "streamable-http", + }); + + await server.start(); + + // Create client with sampling enabled + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + sample: true, // Enable sampling capability + }, + ); + + await client.connect(); + + // Set up Promise to wait for sampling request event + const samplingRequestPromise = new Promise( + (resolve) => { + client.addEventListener( + "newPendingSample", + ((event: CustomEvent) => { + resolve(event.detail as SamplingCreateMessage); + }) as EventListener, + { once: true }, + ); + }, + ); + + // Start the tool call (don't await yet - it will block until sampling is responded to) + const toolResultPromise = client.callTool("collectSample", { + text: "Hello, world!", + }); + + // Wait for the sampling request to arrive via event + const pendingSample = await samplingRequestPromise; + + // Verify we received a sampling request + expect(pendingSample.request.method).toBe("sampling/createMessage"); + const messages = pendingSample.request.params.messages; + expect(messages.length).toBeGreaterThan(0); + const firstMessage = messages[0]; + expect(firstMessage).toBeDefined(); + if ( + firstMessage && + firstMessage.content && + typeof firstMessage.content === "object" && + "text" in firstMessage.content + ) { + expect((firstMessage.content as { text: string }).text).toBe( + "Hello, world!", + ); + } + + // Respond to the sampling request + const samplingResponse: CreateMessageResult = { + model: "test-model", + role: "assistant", + stopReason: "endTurn", + content: { + type: "text", + text: "This is a test response", + }, + }; + + await pendingSample.respond(samplingResponse); + + // Now await the tool result (it should complete now that we've responded) + const toolResult = await toolResultPromise; + + // Verify the tool result contains the sampling response + expect(toolResult).toBeDefined(); + expect(toolResult.content).toBeDefined(); + expect(Array.isArray(toolResult.content)).toBe(true); + const toolContent = toolResult.content as any[]; + expect(toolContent.length).toBeGreaterThan(0); + const toolMessage = toolContent[0]; + expect(toolMessage).toBeDefined(); + expect(toolMessage.type).toBe("text"); + if (toolMessage.type === "text") { + expect(toolMessage.text).toContain("Sampling response:"); + expect(toolMessage.text).toContain("test-model"); + expect(toolMessage.text).toContain("This is a test response"); + } + + // Verify the pending sample was removed + const pendingSamples = client.getPendingSamples(); + expect(pendingSamples.length).toBe(0); + }); + }); + + describe("Server-Initiated Notifications", () => { + it("should receive server-initiated notifications via stdio transport", async () => { + // Note: stdio test server uses getDefaultServerConfig which now includes sendNotification tool + // Create client with stdio transport + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Set up Promise to wait for notification + const notificationPromise = new Promise((resolve) => { + client.addEventListener("message", ((event: CustomEvent) => { + const entry = event.detail as MessageEntry; + if (entry.direction === "notification") { + resolve(entry); + } + }) as EventListener); + }); + + // Call the sendNotification tool + await client.callTool("sendNotification", { + message: "Test notification from stdio", + level: "info", + }); + + // Wait for the notification + const notificationEntry = await notificationPromise; + + // Validate the notification + expect(notificationEntry).toBeDefined(); + expect(notificationEntry.direction).toBe("notification"); + if ("method" in notificationEntry.message) { + expect(notificationEntry.message.method).toBe("notifications/message"); + if ("params" in notificationEntry.message) { + const params = notificationEntry.message.params as any; + expect(params.data.message).toBe("Test notification from stdio"); + expect(params.level).toBe("info"); + expect(params.logger).toBe("test-server"); + } + } + }); + + it("should receive server-initiated notifications via SSE transport", async () => { + // Create a test server with the sendNotification tool and logging enabled + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createSendNotificationTool()], + serverType: "sse", + logging: true, // Required for notifications/message + }); + + await server.start(); + + // Create client with SSE transport + client = new InspectorClient( + { + type: "sse", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Set up Promise to wait for notification + const notificationPromise = new Promise((resolve) => { + client.addEventListener("message", ((event: CustomEvent) => { + const entry = event.detail as MessageEntry; + if (entry.direction === "notification") { + resolve(entry); + } + }) as EventListener); + }); + + // Call the sendNotification tool + await client.callTool("sendNotification", { + message: "Test notification from SSE", + level: "warning", + }); + + // Wait for the notification + const notificationEntry = await notificationPromise; + + // Validate the notification + expect(notificationEntry).toBeDefined(); + expect(notificationEntry.direction).toBe("notification"); + if ("method" in notificationEntry.message) { + expect(notificationEntry.message.method).toBe("notifications/message"); + if ("params" in notificationEntry.message) { + const params = notificationEntry.message.params as any; + expect(params.data.message).toBe("Test notification from SSE"); + expect(params.level).toBe("warning"); + expect(params.logger).toBe("test-server"); + } + } + }); + + it("should receive server-initiated notifications via streamable-http transport", async () => { + // Create a test server with the sendNotification tool and logging enabled + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createSendNotificationTool()], + serverType: "streamable-http", + logging: true, // Required for notifications/message + }); + + await server.start(); + + // Create client with streamable-http transport + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Set up Promise to wait for notification + const notificationPromise = new Promise((resolve) => { + client.addEventListener("message", ((event: CustomEvent) => { + const entry = event.detail as MessageEntry; + if (entry.direction === "notification") { + resolve(entry); + } + }) as EventListener); + }); + + // Call the sendNotification tool + await client.callTool("sendNotification", { + message: "Test notification from streamable-http", + level: "error", + }); + + // Wait for the notification + const notificationEntry = await notificationPromise; + + // Validate the notification + expect(notificationEntry).toBeDefined(); + expect(notificationEntry.direction).toBe("notification"); + if ("method" in notificationEntry.message) { + expect(notificationEntry.message.method).toBe("notifications/message"); + if ("params" in notificationEntry.message) { + const params = notificationEntry.message.params as any; + expect(params.data.message).toBe( + "Test notification from streamable-http", + ); + expect(params.level).toBe("error"); + expect(params.logger).toBe("test-server"); + } + } + }); + }); }); diff --git a/shared/mcp/index.ts b/shared/mcp/index.ts index 6cf882206..5edd05490 100644 --- a/shared/mcp/index.ts +++ b/shared/mcp/index.ts @@ -1,7 +1,7 @@ // Main MCP client module // Re-exports the primary API for MCP client/server interaction -export { InspectorClient } from "./inspectorClient.js"; +export { InspectorClient, SamplingCreateMessage } from "./inspectorClient.js"; export type { InspectorClientOptions } from "./inspectorClient.js"; export { loadMcpServersConfig, argsToMcpServerConfig } from "./config.js"; diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index e967fc0e3..ed899a986 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -22,10 +22,14 @@ import type { JSONRPCResultResponse, JSONRPCErrorResponse, ServerCapabilities, + ClientCapabilities, Implementation, LoggingLevel, Tool, + CreateMessageRequest, + CreateMessageResult, } from "@modelcontextprotocol/sdk/types.js"; +import { CreateMessageRequestSchema } from "@modelcontextprotocol/sdk/types.js"; import { type JsonValue, convertToolParameters, @@ -71,6 +75,70 @@ export interface InspectorClientOptions { * If not provided, logging level will not be set automatically */ initialLoggingLevel?: LoggingLevel; + + /** + * Whether to advertise sampling capability (default: true) + */ + sample?: boolean; +} + +/** + * Represents a pending sampling request from the server + */ +export class SamplingCreateMessage { + public readonly id: string; + public readonly timestamp: Date; + public readonly request: CreateMessageRequest; + private resolvePromise?: (result: CreateMessageResult) => void; + private rejectPromise?: (error: Error) => void; + + constructor( + request: CreateMessageRequest, + resolve: (result: CreateMessageResult) => void, + reject: (error: Error) => void, + private onRemove: (id: string) => void, + ) { + this.id = `sampling-${Date.now()}-${Math.random()}`; + this.timestamp = new Date(); + this.request = request; + this.resolvePromise = resolve; + this.rejectPromise = reject; + } + + /** + * Respond to the sampling request with a result + */ + async respond(result: CreateMessageResult): Promise { + if (!this.resolvePromise) { + throw new Error("Request already resolved or rejected"); + } + this.resolvePromise(result); + this.resolvePromise = undefined; + this.rejectPromise = undefined; + // Remove from pending list after responding + this.remove(); + } + + /** + * Reject the sampling request with an error + */ + async reject(error: Error): Promise { + if (!this.rejectPromise) { + throw new Error("Request already resolved or rejected"); + } + this.rejectPromise(error); + this.resolvePromise = undefined; + this.rejectPromise = undefined; + // Remove from pending list after rejecting + this.remove(); + } + + /** + * Remove this pending sample from the list + */ + remove(): void { + this.onRemove(this.id); + } } /** @@ -92,6 +160,7 @@ export class InspectorClient extends EventTarget { private maxFetchRequests: number; private autoFetchServerContents: boolean; private initialLoggingLevel?: LoggingLevel; + private sample: boolean; private status: ConnectionStatus = "disconnected"; // Server data private tools: any[] = []; @@ -101,6 +170,8 @@ export class InspectorClient extends EventTarget { private capabilities?: ServerCapabilities; private serverInfo?: Implementation; private instructions?: string; + // Sampling requests + private pendingSamples: SamplingCreateMessage[] = []; constructor( private transportConfig: MCPServerConfig, @@ -112,6 +183,7 @@ export class InspectorClient extends EventTarget { this.maxFetchRequests = options.maxFetchRequests ?? 1000; this.autoFetchServerContents = options.autoFetchServerContents ?? true; this.initialLoggingLevel = options.initialLoggingLevel; + this.sample = options.sample ?? true; // Set up message tracking callbacks const messageTracking: MessageTrackingCallbacks = { @@ -205,11 +277,20 @@ export class InspectorClient extends EventTarget { this.dispatchEvent(new CustomEvent("error", { detail: error })); }; + // Build client capabilities + const clientOptions: { capabilities?: ClientCapabilities } = {}; + if (this.sample) { + clientOptions.capabilities = { + sampling: {}, + }; + } + this.client = new Client( options.clientIdentity ?? { name: "@modelcontextprotocol/inspector", version: "0.18.0", }, + Object.keys(clientOptions).length > 0 ? clientOptions : undefined, ); } @@ -256,6 +337,25 @@ export class InspectorClient extends EventTarget { if (this.autoFetchServerContents) { await this.fetchServerContents(); } + + // Set up sampling request handler if sampling capability is enabled + if (this.sample && this.client) { + this.client.setRequestHandler(CreateMessageRequestSchema, (request) => { + return new Promise((resolve, reject) => { + const samplingRequest = new SamplingCreateMessage( + request, + (result) => { + resolve(result); + }, + (error) => { + reject(error); + }, + (id) => this.removePendingSample(id), + ); + this.addPendingSample(samplingRequest); + }); + }); + } } catch (error) { this.status = "error"; this.dispatchEvent( @@ -293,6 +393,7 @@ export class InspectorClient extends EventTarget { this.resources = []; this.resourceTemplates = []; this.prompts = []; + this.pendingSamples = []; this.capabilities = undefined; this.serverInfo = undefined; this.instructions = undefined; @@ -300,6 +401,9 @@ export class InspectorClient extends EventTarget { this.dispatchEvent( new CustomEvent("resourcesChange", { detail: this.resources }), ); + this.dispatchEvent( + new CustomEvent("pendingSamplesChange", { detail: this.pendingSamples }), + ); this.dispatchEvent( new CustomEvent("promptsChange", { detail: this.prompts }), ); @@ -388,6 +492,39 @@ export class InspectorClient extends EventTarget { return [...this.prompts]; } + /** + * Get all pending sampling requests + */ + getPendingSamples(): SamplingCreateMessage[] { + return [...this.pendingSamples]; + } + + /** + * Add a pending sampling request + */ + private addPendingSample(sample: SamplingCreateMessage): void { + this.pendingSamples.push(sample); + this.dispatchEvent( + new CustomEvent("pendingSamplesChange", { detail: this.pendingSamples }), + ); + this.dispatchEvent(new CustomEvent("newPendingSample", { detail: sample })); + } + + /** + * Remove a pending sampling request by ID + */ + removePendingSample(id: string): void { + const index = this.pendingSamples.findIndex((s) => s.id === id); + if (index !== -1) { + this.pendingSamples.splice(index, 1); + this.dispatchEvent( + new CustomEvent("pendingSamplesChange", { + detail: this.pendingSamples, + }), + ); + } + } + /** * Get server capabilities */ diff --git a/shared/test/composable-test-server.ts b/shared/test/composable-test-server.ts index 1acf5146e..ac7d4390d 100644 --- a/shared/test/composable-test-server.ts +++ b/shared/test/composable-test-server.ts @@ -20,7 +20,7 @@ export interface ToolDefinition { name: string; description: string; inputSchema?: ToolInputSchema; - handler: (params: Record) => Promise; + handler: (params: Record, server?: McpServer) => Promise; } export interface ResourceDefinition { @@ -62,9 +62,7 @@ export interface ServerConfig { prompts?: PromptDefinition[]; // Prompts to register (optional, empty array means no prompts, but prompts capability is still advertised) logging?: boolean; // Whether to advertise logging capability (default: false) onLogLevelSet?: (level: string) => void; // Optional callback when log level is set (for testing) - onRegisterResource?: ( - resource: ResourceDefinition, - ) => + onRegisterResource?: (resource: ResourceDefinition) => | (() => Promise<{ contents: Array<{ uri: string; mimeType?: string; text: string }>; }>) @@ -132,7 +130,10 @@ export function createMcpServer(config: ServerConfig): McpServer { inputSchema: tool.inputSchema, }, async (args) => { - const result = await tool.handler(args as Record); + const result = await tool.handler( + args as Record, + mcpServer, + ); // Handle different return types from tool handlers // If handler returns content array directly (like get-annotated-message), use it if (result && Array.isArray(result.content)) { diff --git a/shared/test/test-server-fixtures.ts b/shared/test/test-server-fixtures.ts index b1af76b9c..4653c8b79 100644 --- a/shared/test/test-server-fixtures.ts +++ b/shared/test/test-server-fixtures.ts @@ -7,6 +7,7 @@ import * as z from "zod/v4"; import type { Implementation } from "@modelcontextprotocol/sdk/types.js"; +import { CreateMessageResultSchema } from "@modelcontextprotocol/sdk/types.js"; import type { ToolDefinition, ResourceDefinition, @@ -14,6 +15,7 @@ import type { ResourceTemplateDefinition, ServerConfig, } from "./composable-test-server.js"; +import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; // Re-export types and functions from composable-test-server for backward compatibility export type { @@ -35,7 +37,7 @@ export function createEchoTool(): ToolDefinition { inputSchema: { message: z.string().describe("Message to echo back"), }, - handler: async (params: Record) => { + handler: async (params: Record, _server?: any) => { return { message: `Echo: ${params.message as string}` }; }, }; @@ -52,7 +54,7 @@ export function createAddTool(): ToolDefinition { a: z.number().describe("First number"), b: z.number().describe("Second number"), }, - handler: async (params: Record) => { + handler: async (params: Record, _server?: any) => { const a = params.a as number; const b = params.b as number; return { result: a + b }; @@ -71,7 +73,7 @@ export function createGetSumTool(): ToolDefinition { a: z.number().describe("First number"), b: z.number().describe("Second number"), }, - handler: async (params: Record) => { + handler: async (params: Record, _server?: any) => { const a = params.a as number; const b = params.b as number; return { result: a + b }; @@ -79,6 +81,125 @@ export function createGetSumTool(): ToolDefinition { }; } +/** + * Create a "collectSample" tool that sends a sampling request and returns the response + */ +export function createCollectSampleTool(): ToolDefinition { + return { + name: "collectSample", + description: + "Send a sampling request with the given text and return the response", + inputSchema: { + text: z.string().describe("Text to send in the sampling request"), + }, + handler: async ( + params: Record, + server?: McpServer, + ): Promise => { + if (!server) { + throw new Error("Server instance not available"); + } + + const text = params.text as string; + + // Send a sampling/createMessage request to the client + // The server.request() method takes a request object (with method) and result schema + try { + const result = await server.server.request( + { + method: "sampling/createMessage", + params: { + messages: [ + { + role: "user" as const, + content: { + type: "text" as const, + text: text, + }, + }, + ], + maxTokens: 100, // Required parameter + }, + }, + CreateMessageResultSchema, + ); + + // Validate and return the result + const validatedResult = CreateMessageResultSchema.parse(result); + + return { + message: `Sampling response: ${JSON.stringify(validatedResult)}`, + }; + } catch (error) { + console.error( + "[collectSample] Error sending/receiving sampling request:", + error, + ); + throw error; + } + }, + }; +} + +/** + * Create a "sendNotification" tool that sends a notification message from the server + */ +export function createSendNotificationTool(): ToolDefinition { + return { + name: "sendNotification", + description: "Send a notification message from the server", + inputSchema: { + message: z.string().describe("Notification message to send"), + level: z + .enum([ + "debug", + "info", + "notice", + "warning", + "error", + "critical", + "alert", + "emergency", + ]) + .optional() + .describe("Log level for the notification"), + }, + handler: async ( + params: Record, + server?: McpServer, + ): Promise => { + if (!server) { + throw new Error("Server instance not available"); + } + + const message = params.message as string; + const level = (params.level as string) || "info"; + + // Send a notification from the server + // Notifications don't have an id and use the jsonrpc format + try { + await server.server.notification({ + method: "notifications/message", + params: { + level, + logger: "test-server", + data: { + message, + }, + }, + }); + + return { + message: `Notification sent: ${message}`, + }; + } catch (error) { + console.error("[sendNotification] Error sending notification:", error); + throw error; + } + }, + }; +} + /** * Create a "get-annotated-message" tool that returns a message with optional image */ @@ -95,7 +216,7 @@ export function createGetAnnotatedMessageTool(): ToolDefinition { .optional() .describe("Whether to include an image"), }, - handler: async (params: Record) => { + handler: async (params: Record, _server?: any) => { const messageType = params.messageType as string; const includeImage = params.includeImage as boolean | undefined; const message = `This is a ${messageType} message`; @@ -303,6 +424,7 @@ export function getDefaultServerConfig(): ServerConfig { createEchoTool(), createGetSumTool(), createGetAnnotatedMessageTool(), + createSendNotificationTool(), ], prompts: [createSimplePrompt(), createArgsPrompt()], resources: [ @@ -315,5 +437,6 @@ export function getDefaultServerConfig(): ServerConfig { createFileResourceTemplate(), createUserResourceTemplate(), ], + logging: true, // Required for notifications/message }; } diff --git a/shared/test/test-server-http.ts b/shared/test/test-server-http.ts index 911776191..d6deff5ca 100644 --- a/shared/test/test-server-http.ts +++ b/shared/test/test-server-http.ts @@ -129,10 +129,21 @@ export class TestServerHttp { } }); - // Handle GET requests for SSE stream - return 405 to indicate SSE is not supported - // The StreamableHTTPClientTransport will treat 405 as acceptable and continue without SSE - app.get("/mcp", (req: Request, res: Response) => { - res.status(405).send("Method Not Allowed"); + // Handle GET requests for SSE stream - this enables server-initiated messages + app.get("/mcp", async (req: Request, res: Response) => { + // Capture headers for this request + this.currentRequestHeaders = extractHeaders(req); + + try { + await (this.transport as StreamableHTTPServerTransport).handleRequest( + req, + res, + ); + } catch (error) { + res.status(500).json({ + error: error instanceof Error ? error.message : String(error), + }); + } }); // Intercept messages to record them From 488e35d6a838e87cc83ee729dcdd9bca6dd80046 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Thu, 22 Jan 2026 12:04:02 -0800 Subject: [PATCH 27/44] Add elicitation capability to InspectorClient. Implemented ElicitationCreateMessage class, updated InspectorClient to handle elicitation requests, and added tests for elicitation functionality. Added test server fixture to support elicitation. --- cli/src/index.ts | 1 + shared/__tests__/inspectorClient.test.ts | 109 +++++++++++++++++++- shared/mcp/inspectorClient.ts | 122 ++++++++++++++++++++++- shared/test/test-server-fixtures.ts | 62 +++++++++++- 4 files changed, 288 insertions(+), 6 deletions(-) diff --git a/cli/src/index.ts b/cli/src/index.ts index 5c469ec27..b2408e959 100644 --- a/cli/src/index.ts +++ b/cli/src/index.ts @@ -173,6 +173,7 @@ async function callMethod(args: Args): Promise { autoFetchServerContents: false, // CLI doesn't need auto-fetching, it calls methods directly initialLoggingLevel: "debug", // Set debug logging level for CLI sample: false, // CLI doesn't need sampling capability + elicit: false, // CLI doesn't need elicitation capability }); try { diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index 2e443c9df..c6ac86d50 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -2,6 +2,7 @@ import { describe, it, expect, beforeEach, afterEach } from "vitest"; import { InspectorClient, SamplingCreateMessage, + ElicitationCreateMessage, } from "../mcp/inspectorClient.js"; import { getTestMcpServerCommand } from "../test/test-server-stdio.js"; import { @@ -13,10 +14,14 @@ import { createTestServerInfo, createFileResourceTemplate, createCollectSampleTool, + createCollectElicitationTool, createSendNotificationTool, } from "../test/test-server-fixtures.js"; import type { MessageEntry } from "../mcp/types.js"; -import type { CreateMessageResult } from "@modelcontextprotocol/sdk/types.js"; +import type { + CreateMessageResult, + ElicitResult, +} from "@modelcontextprotocol/sdk/types.js"; describe("InspectorClient", () => { let client: InspectorClient; @@ -1087,4 +1092,106 @@ describe("InspectorClient", () => { } }); }); + + describe("Elicitation Requests", () => { + it("should handle elicitation requests from server and respond", async () => { + // Create a test server with the collectElicitation tool + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createCollectElicitationTool()], + serverType: "streamable-http", + }); + + await server.start(); + + // Create client with elicitation enabled + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + elicit: true, // Enable elicitation capability + }, + ); + + await client.connect(); + + // Set up Promise to wait for elicitation request event + const elicitationRequestPromise = new Promise( + (resolve) => { + client.addEventListener( + "newPendingElicitation", + ((event: CustomEvent) => { + resolve(event.detail as ElicitationCreateMessage); + }) as EventListener, + { once: true }, + ); + }, + ); + + // Start the tool call (don't await yet - it will block until elicitation is responded to) + const toolResultPromise = client.callTool("collectElicitation", { + message: "Please provide your name", + schema: { + type: "object", + properties: { + name: { + type: "string", + description: "Your name", + }, + }, + required: ["name"], + }, + }); + + // Wait for the elicitation request to arrive via event + const pendingElicitation = await elicitationRequestPromise; + + // Verify we received an elicitation request + expect(pendingElicitation.request.method).toBe("elicitation/create"); + expect(pendingElicitation.request.params.message).toBe( + "Please provide your name", + ); + if ("requestedSchema" in pendingElicitation.request.params) { + expect(pendingElicitation.request.params.requestedSchema).toBeDefined(); + expect(pendingElicitation.request.params.requestedSchema.type).toBe( + "object", + ); + } + + // Respond to the elicitation request + const elicitationResponse: ElicitResult = { + action: "accept", + content: { + name: "Test User", + }, + }; + + await pendingElicitation.respond(elicitationResponse); + + // Now await the tool result (it should complete now that we've responded) + const toolResult = await toolResultPromise; + + // Verify the tool result contains the elicitation response + expect(toolResult).toBeDefined(); + expect(toolResult.content).toBeDefined(); + expect(Array.isArray(toolResult.content)).toBe(true); + const toolContent = toolResult.content as any[]; + expect(toolContent.length).toBeGreaterThan(0); + const toolMessage = toolContent[0]; + expect(toolMessage).toBeDefined(); + expect(toolMessage.type).toBe("text"); + if (toolMessage.type === "text") { + expect(toolMessage.text).toContain("Elicitation response:"); + expect(toolMessage.text).toContain("accept"); + expect(toolMessage.text).toContain("Test User"); + } + + // Verify the pending elicitation was removed + const pendingElicitations = client.getPendingElicitations(); + expect(pendingElicitations.length).toBe(0); + }); + }); }); diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index ed899a986..0f6078f34 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -28,8 +28,13 @@ import type { Tool, CreateMessageRequest, CreateMessageResult, + ElicitRequest, + ElicitResult, +} from "@modelcontextprotocol/sdk/types.js"; +import { + CreateMessageRequestSchema, + ElicitRequestSchema, } from "@modelcontextprotocol/sdk/types.js"; -import { CreateMessageRequestSchema } from "@modelcontextprotocol/sdk/types.js"; import { type JsonValue, convertToolParameters, @@ -80,6 +85,11 @@ export interface InspectorClientOptions { * Whether to advertise sampling capability (default: true) */ sample?: boolean; + + /** + * Whether to advertise elicitation capability (default: true) + */ + elicit?: boolean; } /** @@ -141,6 +151,47 @@ export class SamplingCreateMessage { } } +/** + * Represents a pending elicitation request from the server + */ +export class ElicitationCreateMessage { + public readonly id: string; + public readonly timestamp: Date; + public readonly request: ElicitRequest; + private resolvePromise?: (result: ElicitResult) => void; + + constructor( + request: ElicitRequest, + resolve: (result: ElicitResult) => void, + private onRemove: (id: string) => void, + ) { + this.id = `elicitation-${Date.now()}-${Math.random()}`; + this.timestamp = new Date(); + this.request = request; + this.resolvePromise = resolve; + } + + /** + * Respond to the elicitation request with a result + */ + async respond(result: ElicitResult): Promise { + if (!this.resolvePromise) { + throw new Error("Request already resolved"); + } + this.resolvePromise(result); + this.resolvePromise = undefined; + // Remove from pending list after responding + this.remove(); + } + + /** + * Remove this pending elicitation from the list + */ + remove(): void { + this.onRemove(this.id); + } +} + /** * InspectorClient wraps an MCP Client and provides: * - Message tracking and storage @@ -161,6 +212,7 @@ export class InspectorClient extends EventTarget { private autoFetchServerContents: boolean; private initialLoggingLevel?: LoggingLevel; private sample: boolean; + private elicit: boolean; private status: ConnectionStatus = "disconnected"; // Server data private tools: any[] = []; @@ -172,6 +224,8 @@ export class InspectorClient extends EventTarget { private instructions?: string; // Sampling requests private pendingSamples: SamplingCreateMessage[] = []; + // Elicitation requests + private pendingElicitations: ElicitationCreateMessage[] = []; constructor( private transportConfig: MCPServerConfig, @@ -184,6 +238,7 @@ export class InspectorClient extends EventTarget { this.autoFetchServerContents = options.autoFetchServerContents ?? true; this.initialLoggingLevel = options.initialLoggingLevel; this.sample = options.sample ?? true; + this.elicit = options.elicit ?? true; // Set up message tracking callbacks const messageTracking: MessageTrackingCallbacks = { @@ -279,10 +334,15 @@ export class InspectorClient extends EventTarget { // Build client capabilities const clientOptions: { capabilities?: ClientCapabilities } = {}; + const capabilities: ClientCapabilities = {}; if (this.sample) { - clientOptions.capabilities = { - sampling: {}, - }; + capabilities.sampling = {}; + } + if (this.elicit) { + capabilities.elicitation = {}; + } + if (Object.keys(capabilities).length > 0) { + clientOptions.capabilities = capabilities; } this.client = new Client( @@ -356,6 +416,22 @@ export class InspectorClient extends EventTarget { }); }); } + + // Set up elicitation request handler if elicitation capability is enabled + if (this.elicit && this.client) { + this.client.setRequestHandler(ElicitRequestSchema, (request) => { + return new Promise((resolve) => { + const elicitationRequest = new ElicitationCreateMessage( + request, + (result) => { + resolve(result); + }, + (id) => this.removePendingElicitation(id), + ); + this.addPendingElicitation(elicitationRequest); + }); + }); + } } catch (error) { this.status = "error"; this.dispatchEvent( @@ -394,6 +470,7 @@ export class InspectorClient extends EventTarget { this.resourceTemplates = []; this.prompts = []; this.pendingSamples = []; + this.pendingElicitations = []; this.capabilities = undefined; this.serverInfo = undefined; this.instructions = undefined; @@ -525,6 +602,43 @@ export class InspectorClient extends EventTarget { } } + /** + * Get all pending elicitation requests + */ + getPendingElicitations(): ElicitationCreateMessage[] { + return [...this.pendingElicitations]; + } + + /** + * Add a pending elicitation request + */ + private addPendingElicitation(elicitation: ElicitationCreateMessage): void { + this.pendingElicitations.push(elicitation); + this.dispatchEvent( + new CustomEvent("pendingElicitationsChange", { + detail: this.pendingElicitations, + }), + ); + this.dispatchEvent( + new CustomEvent("newPendingElicitation", { detail: elicitation }), + ); + } + + /** + * Remove a pending elicitation request by ID + */ + removePendingElicitation(id: string): void { + const index = this.pendingElicitations.findIndex((e) => e.id === id); + if (index !== -1) { + this.pendingElicitations.splice(index, 1); + this.dispatchEvent( + new CustomEvent("pendingElicitationsChange", { + detail: this.pendingElicitations, + }), + ); + } + } + /** * Get server capabilities */ diff --git a/shared/test/test-server-fixtures.ts b/shared/test/test-server-fixtures.ts index 4653c8b79..0267c81d0 100644 --- a/shared/test/test-server-fixtures.ts +++ b/shared/test/test-server-fixtures.ts @@ -7,7 +7,11 @@ import * as z from "zod/v4"; import type { Implementation } from "@modelcontextprotocol/sdk/types.js"; -import { CreateMessageResultSchema } from "@modelcontextprotocol/sdk/types.js"; +import { + CreateMessageResultSchema, + ElicitRequestSchema, + ElicitResultSchema, +} from "@modelcontextprotocol/sdk/types.js"; import type { ToolDefinition, ResourceDefinition, @@ -141,6 +145,62 @@ export function createCollectSampleTool(): ToolDefinition { }; } +/** + * Create a "collectElicitation" tool that sends an elicitation request and returns the response + */ +export function createCollectElicitationTool(): ToolDefinition { + return { + name: "collectElicitation", + description: + "Send an elicitation request with the given message and schema and return the response", + inputSchema: { + message: z + .string() + .describe("Message to send in the elicitation request"), + schema: z.any().describe("JSON schema for the elicitation request"), + }, + handler: async ( + params: Record, + server?: McpServer, + ): Promise => { + if (!server) { + throw new Error("Server instance not available"); + } + + const message = params.message as string; + const schema = params.schema as any; + + // Send an elicitation/create request to the client + // The server.request() method takes a request object (with method) and result schema + try { + const result = await server.server.request( + { + method: "elicitation/create", + params: { + message, + requestedSchema: schema, + }, + }, + ElicitResultSchema, + ); + + // Validate and return the result + const validatedResult = ElicitResultSchema.parse(result); + + return { + message: `Elicitation response: ${JSON.stringify(validatedResult)}`, + }; + } catch (error) { + console.error( + "[collectElicitation] Error sending/receiving elicitation request:", + error, + ); + throw error; + } + }, + }; +} + /** * Create a "sendNotification" tool that sends a notification message from the server */ From ae4f035753774ebb096ebcc6130699e630682c20 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Thu, 22 Jan 2026 13:33:09 -0800 Subject: [PATCH 28/44] Implemented proper session support for streamable-http transport (also require session id on GET to prevent SSE clients from succeeding on a get to a streamable-http test server) --- shared/test/test-server-http.ts | 191 +++++++++++++++++++------------- 1 file changed, 116 insertions(+), 75 deletions(-) diff --git a/shared/test/test-server-http.ts b/shared/test/test-server-http.ts index d6deff5ca..4ca801747 100644 --- a/shared/test/test-server-http.ts +++ b/shared/test/test-server-http.ts @@ -7,6 +7,7 @@ import express from "express"; import { createServer as createHttpServer, Server as HttpServer } from "http"; import { createServer as createNetServer } from "net"; import * as z from "zod/v4"; +import * as crypto from "node:crypto"; import type { ServerConfig } from "./test-server-fixtures.js"; export interface RecordedRequest { @@ -108,101 +109,141 @@ export class TestServerHttp { // Create HTTP server this.httpServer = createHttpServer(app); - // Create StreamableHTTP transport - this.transport = new StreamableHTTPServerTransport({}); + // Store transports by sessionId - each transport instance manages ONE session + const transports: Map = new Map(); // Set up Express route to handle MCP requests app.post("/mcp", async (req: Request, res: Response) => { // Capture headers for this request this.currentRequestHeaders = extractHeaders(req); - try { - await (this.transport as StreamableHTTPServerTransport).handleRequest( - req, - res, - req.body, - ); - } catch (error) { - res.status(500).json({ - error: error instanceof Error ? error.message : String(error), + const sessionId = req.headers["mcp-session-id"] as string | undefined; + + if (sessionId) { + // Existing session - use the transport for this session + const transport = transports.get(sessionId); + if (!transport) { + res.status(404).json({ error: "Session not found" }); + return; + } + + try { + await transport.handleRequest(req, res, req.body); + } catch (error) { + res.status(500).json({ + error: error instanceof Error ? error.message : String(error), + }); + } + } else { + // New session - create a new transport instance + const newTransport = new StreamableHTTPServerTransport({ + sessionIdGenerator: () => crypto.randomUUID(), + onsessioninitialized: (sessionId: string) => { + transports.set(sessionId, newTransport); + }, + onsessionclosed: (sessionId: string) => { + transports.delete(sessionId); + }, }); + + // Set up message interception for this transport + const originalOnMessage = newTransport.onmessage; + newTransport.onmessage = async (message) => { + const timestamp = Date.now(); + const method = + "method" in message && typeof message.method === "string" + ? message.method + : "unknown"; + const params = "params" in message ? message.params : undefined; + + try { + // Extract metadata from params if present + const metadata = + params && typeof params === "object" && "_meta" in params + ? ((params as any)._meta as Record) + : undefined; + + // Let the server handle the message + if (originalOnMessage) { + await originalOnMessage.call(newTransport, message); + } + + // Record successful request + this.recordedRequests.push({ + method, + params, + headers: { ...this.currentRequestHeaders }, + metadata: metadata ? { ...metadata } : undefined, + response: { processed: true }, + timestamp, + }); + } catch (error) { + // Extract metadata from params if present + const metadata = + params && typeof params === "object" && "_meta" in params + ? ((params as any)._meta as Record) + : undefined; + + // Record error + this.recordedRequests.push({ + method, + params, + headers: { ...this.currentRequestHeaders }, + metadata: metadata ? { ...metadata } : undefined, + response: { + error: error instanceof Error ? error.message : String(error), + }, + timestamp, + }); + throw error; + } + }; + + // Connect the MCP server to this transport + await this.mcpServer.connect(newTransport); + + try { + await newTransport.handleRequest(req, res, req.body); + } catch (error) { + res.status(500).json({ + error: error instanceof Error ? error.message : String(error), + }); + } } }); // Handle GET requests for SSE stream - this enables server-initiated messages app.get("/mcp", async (req: Request, res: Response) => { - // Capture headers for this request - this.currentRequestHeaders = extractHeaders(req); - - try { - await (this.transport as StreamableHTTPServerTransport).handleRequest( - req, - res, - ); - } catch (error) { - res.status(500).json({ - error: error instanceof Error ? error.message : String(error), + // Get session ID from header - required for streamable-http + const sessionId = req.headers["mcp-session-id"] as string | undefined; + if (!sessionId) { + res.status(400).json({ + error: "Bad Request: Mcp-Session-Id header is required", }); + return; } - }); - // Intercept messages to record them - const originalOnMessage = this.transport.onmessage; - this.transport.onmessage = async (message) => { - const timestamp = Date.now(); - const method = - "method" in message && typeof message.method === "string" - ? message.method - : "unknown"; - const params = "params" in message ? message.params : undefined; + // Look up the transport for this session + const transport = transports.get(sessionId); + if (!transport) { + res.status(404).json({ + error: "Session not found", + }); + return; + } + // Let the transport handle the GET request + this.currentRequestHeaders = extractHeaders(req); try { - // Extract metadata from params if present - const metadata = - params && typeof params === "object" && "_meta" in params - ? ((params as any)._meta as Record) - : undefined; - - // Let the server handle the message - if (originalOnMessage) { - await originalOnMessage.call(this.transport, message); - } - - // Record successful request (response will be sent by transport) - // Note: We can't easily capture the response here, so we'll record - // that the request was processed - this.recordedRequests.push({ - method, - params, - headers: { ...this.currentRequestHeaders }, - metadata: metadata ? { ...metadata } : undefined, - response: { processed: true }, - timestamp, - }); + await transport.handleRequest(req, res); } catch (error) { - // Extract metadata from params if present - const metadata = - params && typeof params === "object" && "_meta" in params - ? ((params as any)._meta as Record) - : undefined; - - // Record error - this.recordedRequests.push({ - method, - params, - headers: { ...this.currentRequestHeaders }, - metadata: metadata ? { ...metadata } : undefined, - response: { + if (!res.headersSent) { + res.status(500).json({ error: error instanceof Error ? error.message : String(error), - }, - timestamp, - }); - throw error; + }); + } } - }; - - // Connect transport to server - await this.mcpServer.connect(this.transport); + }); // Start listening on localhost only to avoid macOS firewall prompts // Use port 0 to let the OS assign an available port if no port was specified From 7a70d787202bc4d845422d64c6ac671007f399f1 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Thu, 22 Jan 2026 14:34:43 -0800 Subject: [PATCH 29/44] Added InspectorClient and test framework support for completions Added support for listing of resources from templates (when list callback provided). --- shared/__tests__/inspectorClient.test.ts | 279 +++++++++++++++++++++++ shared/mcp/inspectorClient.ts | 67 ++++++ shared/test/composable-test-server.ts | 150 +++++++++++- shared/test/test-server-fixtures.ts | 33 ++- 4 files changed, 521 insertions(+), 8 deletions(-) diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index c6ac86d50..0e6f1c3ad 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -16,6 +16,7 @@ import { createCollectSampleTool, createCollectElicitationTool, createSendNotificationTool, + createArgsPrompt, } from "../test/test-server-fixtures.js"; import type { MessageEntry } from "../mcp/types.js"; import type { @@ -686,6 +687,51 @@ describe("InspectorClient", () => { expect(content).toHaveProperty("text"); expect(content.text).toContain("Mock file content for: test.txt"); }); + + it("should include resources from template list callback in listResources", async () => { + // Create a server with a resource template that has a list callback + const listCallback = async () => { + return ["file:///file1.txt", "file:///file2.txt", "file:///file3.txt"]; + }; + + await client.disconnect(); + if (server) { + await server.stop(); + } + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resourceTemplates: [ + createFileResourceTemplate(undefined, listCallback), + ], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + clientIdentity: { name: "test", version: "1.0.0" }, + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Call listResources - this should include resources from the template's list callback + const result = await client.listResources(); + expect(result).toHaveProperty("resources"); + const resources = (result as any).resources as any[]; + expect(Array.isArray(resources)).toBe(true); + + // Verify that the resources from the list callback are included + const uris = resources.map((r) => r.uri); + expect(uris).toContain("file:///file1.txt"); + expect(uris).toContain("file:///file2.txt"); + expect(uris).toContain("file:///file3.txt"); + }); }); describe("Prompt Methods", () => { @@ -1194,4 +1240,237 @@ describe("InspectorClient", () => { expect(pendingElicitations.length).toBe(0); }); }); + + describe("Completions", () => { + it("should get completions for resource template variable", async () => { + // Create a test server with a resource template that has completion support + const completionCallback = (argName: string, value: string): string[] => { + if (argName === "path") { + const files = ["file1.txt", "file2.txt", "file3.txt"]; + return files.filter((f) => f.startsWith(value)); + } + return []; + }; + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resourceTemplates: [createFileResourceTemplate(completionCallback)], + }); + + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Request completions for "file" variable with partial value "file1" + const result = await client.getCompletions( + { type: "ref/resource", uri: "file:///{path}" }, + "path", + "file1", + ); + + expect(result.values).toContain("file1.txt"); + expect(result.values.length).toBeGreaterThan(0); + + await client.disconnect(); + await server.stop(); + }); + + it("should get completions for prompt argument", async () => { + // Create a test server with a prompt that has completion support + const cityCompletions = ( + value: string, + _context?: Record, + ): string[] => { + const cities = ["New York", "Los Angeles", "Chicago", "Houston"]; + return cities.filter((c) => + c.toLowerCase().startsWith(value.toLowerCase()), + ); + }; + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + prompts: [ + createArgsPrompt({ + city: cityCompletions, + }), + ], + }); + + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Request completions for "city" argument with partial value "New" + const result = await client.getCompletions( + { type: "ref/prompt", name: "args-prompt" }, + "city", + "New", + ); + + expect(result.values).toContain("New York"); + expect(result.values.length).toBeGreaterThan(0); + + await client.disconnect(); + await server.stop(); + }); + + it("should return empty array when server does not support completions", async () => { + // Create a test server without completion support + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resourceTemplates: [createFileResourceTemplate()], // No completion callback + }); + + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Request completions - should return empty array (MethodNotFound handled gracefully) + const result = await client.getCompletions( + { type: "ref/resource", uri: "file:///{path}" }, + "path", + "file", + ); + + expect(result.values).toEqual([]); + + await client.disconnect(); + await server.stop(); + }); + + it("should get completions with context (other arguments)", async () => { + // Create a test server with a prompt that uses context + const stateCompletions = ( + value: string, + context?: Record, + ): string[] => { + const statesByCity: Record = { + "New York": ["NY", "New York State"], + "Los Angeles": ["CA", "California"], + }; + + const city = context?.city; + if (city && statesByCity[city]) { + return statesByCity[city].filter((s) => + s.toLowerCase().startsWith(value.toLowerCase()), + ); + } + return ["NY", "CA", "TX", "FL"].filter((s) => + s.toLowerCase().startsWith(value.toLowerCase()), + ); + }; + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + prompts: [ + createArgsPrompt({ + state: stateCompletions, + }), + ], + }); + + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Request completions for "state" with context (city="New York") + const result = await client.getCompletions( + { type: "ref/prompt", name: "args-prompt" }, + "state", + "N", + { city: "New York" }, + ); + + expect(result.values).toContain("NY"); + expect(result.values).toContain("New York State"); + + await client.disconnect(); + await server.stop(); + }); + + it("should handle async completion callbacks", async () => { + // Create a test server with async completion callback + const asyncCompletionCallback = async ( + argName: string, + value: string, + ): Promise => { + // Simulate async operation + await new Promise((resolve) => setTimeout(resolve, 10)); + const files = ["async1.txt", "async2.txt", "async3.txt"]; + return files.filter((f) => f.startsWith(value)); + }; + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resourceTemplates: [ + createFileResourceTemplate(asyncCompletionCallback), + ], + }); + + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + const result = await client.getCompletions( + { type: "ref/resource", uri: "file:///{path}" }, + "path", + "async1", + ); + + expect(result.values).toContain("async1.txt"); + + await client.disconnect(); + await server.stop(); + }); + }); }); diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index 0f6078f34..50619791d 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -898,6 +898,73 @@ export class InspectorClient extends EventTarget { } } + /** + * Request completions for a resource template variable or prompt argument + * @param ref Resource template reference or prompt reference + * @param argumentName Name of the argument/variable to complete + * @param argumentValue Current (partial) value of the argument + * @param context Optional context with other argument values + * @param metadata Optional metadata to include in the request + * @returns Completion result with values array + * @throws Error if client is not connected or request fails (except MethodNotFound) + */ + async getCompletions( + ref: + | { type: "ref/resource"; uri: string } + | { type: "ref/prompt"; name: string }, + argumentName: string, + argumentValue: string, + context?: Record, + metadata?: Record, + ): Promise<{ values: string[]; total?: number; hasMore?: boolean }> { + if (!this.client) { + return { values: [] }; + } + + try { + const params: any = { + ref, + argument: { + name: argumentName, + value: argumentValue, + }, + }; + + if (context) { + params.context = { + arguments: context, + }; + } + + if (metadata && Object.keys(metadata).length > 0) { + params._meta = metadata; + } + + const response = await this.client.complete(params); + + return { + values: response.completion.values || [], + total: response.completion.total, + hasMore: response.completion.hasMore, + }; + } catch (error: any) { + // Handle MethodNotFound gracefully (server doesn't support completions) + if ( + error?.code === -32601 || + (error instanceof Error && + (error.message.includes("Method not found") || + error.message.includes("does not support completions"))) + ) { + return { values: [] }; + } + + // Re-throw other errors + throw new Error( + `Failed to get completions: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + /** * Fetch server info (capabilities, serverInfo, instructions) from cached initialize response * This does not send any additional MCP requests - it just reads cached data diff --git a/shared/test/composable-test-server.ts b/shared/test/composable-test-server.ts index ac7d4390d..f0c661208 100644 --- a/shared/test/composable-test-server.ts +++ b/shared/test/composable-test-server.ts @@ -9,9 +9,13 @@ import { McpServer, ResourceTemplate, } from "@modelcontextprotocol/sdk/server/mcp.js"; -import type { Implementation } from "@modelcontextprotocol/sdk/types.js"; +import type { + Implementation, + ListResourcesResult, +} from "@modelcontextprotocol/sdk/types.js"; import { SetLevelRequestSchema } from "@modelcontextprotocol/sdk/types.js"; import { ZodRawShapeCompat } from "@modelcontextprotocol/sdk/server/zod-compat.js"; +import { completable } from "@modelcontextprotocol/sdk/server/completable.js"; type ToolInputSchema = ZodRawShapeCompat; type PromptArgsSchema = ZodRawShapeCompat; @@ -35,7 +39,16 @@ export interface PromptDefinition { name: string; description?: string; promptString: string; // The prompt text with optional {argName} placeholders - argsSchema?: PromptArgsSchema; + argsSchema?: PromptArgsSchema; // Can include completable() schemas + // Optional completion callbacks keyed by argument name + // This is a convenience - users can also use completable() directly in argsSchema + completions?: Record< + string, + ( + argumentValue: string, + context?: Record, + ) => Promise | string[] + >; } export interface ResourceTemplateDefinition { @@ -49,6 +62,28 @@ export interface ResourceTemplateDefinition { ) => Promise<{ contents: Array<{ uri: string; mimeType?: string; text: string }>; }>; + // Optional callbacks for resource template operations + // list: Can return either: + // - string[] (convenience - will be converted to ListResourcesResult with uri and name) + // - ListResourcesResult (full control - includes uri, name, description, mimeType, etc.) + list?: + | (() => Promise | string[]) + | (() => Promise | ListResourcesResult); + // complete: Map of variable names to completion callbacks + // OR a single callback function that will be used for all variables + complete?: + | Record< + string, + ( + value: string, + context?: Record, + ) => Promise | string[] + > + | (( + argumentName: string, + argumentValue: string, + context?: Record, + ) => Promise | string[]); } /** @@ -199,9 +234,85 @@ export function createMcpServer(config: ServerConfig): McpServer { if (config.resourceTemplates && config.resourceTemplates.length > 0) { for (const template of config.resourceTemplates) { // ResourceTemplate is a class - create an instance with the URI template string and callbacks + // Convert list callback: SDK expects ListResourcesResult + // We support both string[] (convenience) and ListResourcesResult (full control) + const listCallback = template.list + ? async () => { + const result = template.list!(); + const resolved = await result; + // Check if it's already a ListResourcesResult (has resources array) + if ( + resolved && + typeof resolved === "object" && + "resources" in resolved + ) { + return resolved as ListResourcesResult; + } + // Otherwise, it's string[] - convert to ListResourcesResult + const uriArray = resolved as string[]; + return { + resources: uriArray.map((uri) => ({ + uri, + name: uri, // Use URI as name if not provided + })), + }; + } + : undefined; + + // Convert complete callback: SDK expects {[variable: string]: callback} + // We support either a map or a single function + let completeCallbacks: + | { + [variable: string]: ( + value: string, + context?: { arguments?: Record }, + ) => Promise | string[]; + } + | undefined = undefined; + + if (template.complete) { + if (typeof template.complete === "function") { + // Single function - extract variable names from URI template and use for all + // Parse URI template to find variables (e.g., {file} from "file://{file}") + const variableMatches = template.uriTemplate.match(/\{([^}]+)\}/g); + if (variableMatches) { + completeCallbacks = {}; + const completeFn = template.complete; + for (const match of variableMatches) { + const variableName = match.slice(1, -1); // Remove { and } + completeCallbacks[variableName] = async ( + value: string, + context?: { arguments?: Record }, + ) => { + const result = completeFn( + variableName, + value, + context?.arguments, + ); + return Array.isArray(result) ? result : await result; + }; + } + } + } else { + // Map of variable names to callbacks + completeCallbacks = {}; + for (const [variableName, callback] of Object.entries( + template.complete, + )) { + completeCallbacks[variableName] = async ( + value: string, + context?: { arguments?: Record }, + ) => { + const result = callback(value, context?.arguments); + return Array.isArray(result) ? result : await result; + }; + } + } + } + const resourceTemplate = new ResourceTemplate(template.uriTemplate, { - list: undefined, // We don't support listing resources from templates - complete: undefined, // We don't support completion for template variables + list: listCallback, + complete: completeCallbacks, }); mcpServer.registerResource( @@ -221,11 +332,40 @@ export function createMcpServer(config: ServerConfig): McpServer { // Set up prompts if (config.prompts && config.prompts.length > 0) { for (const prompt of config.prompts) { + // Build argsSchema with completion support if provided + let argsSchema = prompt.argsSchema; + + // If completions callbacks are provided, wrap the corresponding schemas + if (prompt.completions && argsSchema) { + const enhancedSchema: Record = { ...argsSchema }; + for (const [argName, completeCallback] of Object.entries( + prompt.completions, + )) { + if (enhancedSchema[argName]) { + // Wrap the existing schema with completable + enhancedSchema[argName] = completable( + enhancedSchema[argName], + async ( + value: any, + context?: { arguments?: Record }, + ) => { + const result = completeCallback( + String(value), + context?.arguments, + ); + return Array.isArray(result) ? result : await result; + }, + ); + } + } + argsSchema = enhancedSchema; + } + mcpServer.registerPrompt( prompt.name, { description: prompt.description, - argsSchema: prompt.argsSchema, + argsSchema: argsSchema, }, async (args) => { let text = prompt.promptString; diff --git a/shared/test/test-server-fixtures.ts b/shared/test/test-server-fixtures.ts index 0267c81d0..ab4d311fa 100644 --- a/shared/test/test-server-fixtures.ts +++ b/shared/test/test-server-fixtures.ts @@ -317,7 +317,15 @@ export function createSimplePrompt(): PromptDefinition { /** * Create an "args-prompt" prompt that accepts arguments */ -export function createArgsPrompt(): PromptDefinition { +export function createArgsPrompt( + completions?: Record< + string, + ( + argumentValue: string, + context?: Record, + ) => Promise | string[] + >, +): PromptDefinition { return { name: "args-prompt", description: "A prompt that accepts arguments for testing", @@ -326,6 +334,7 @@ export function createArgsPrompt(): PromptDefinition { city: z.string().describe("City name"), state: z.string().describe("State name"), }, + completions, }; } @@ -415,7 +424,14 @@ export function createTestServerInfo( /** * Create a "file" resource template that reads files by path */ -export function createFileResourceTemplate(): ResourceTemplateDefinition { +export function createFileResourceTemplate( + completionCallback?: ( + argumentName: string, + value: string, + context?: Record, + ) => Promise | string[], + listCallback?: () => Promise | string[], +): ResourceTemplateDefinition { return { name: "file", uriTemplate: "file:///{path}", @@ -436,13 +452,22 @@ export function createFileResourceTemplate(): ResourceTemplateDefinition { ], }; }, + complete: completionCallback, + list: listCallback, }; } /** * Create a "user" resource template that returns user data by ID */ -export function createUserResourceTemplate(): ResourceTemplateDefinition { +export function createUserResourceTemplate( + completionCallback?: ( + argumentName: string, + value: string, + context?: Record, + ) => Promise | string[], + listCallback?: () => Promise | string[], +): ResourceTemplateDefinition { return { name: "user", uriTemplate: "user://{userId}", @@ -471,6 +496,8 @@ export function createUserResourceTemplate(): ResourceTemplateDefinition { ], }; }, + complete: completionCallback, + list: listCallback, }; } From 5b848e8a0066fc062c48c8709d37292897a45239 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Thu, 22 Jan 2026 15:59:33 -0800 Subject: [PATCH 30/44] Updated feature gaps --- docs/tui-web-client-feature-gaps.md | 489 ++++++++++++++++------------ 1 file changed, 276 insertions(+), 213 deletions(-) diff --git a/docs/tui-web-client-feature-gaps.md b/docs/tui-web-client-feature-gaps.md index e8a9b42c8..8ba3cc9a9 100644 --- a/docs/tui-web-client-feature-gaps.md +++ b/docs/tui-web-client-feature-gaps.md @@ -4,105 +4,46 @@ This document details the feature gaps between the TUI (Terminal User Interface) and the web client. The goal is to identify all missing features in the TUI and create a plan to close these gaps by extending `InspectorClient` and implementing the features in the TUI. -## Feature Comparison Matrix - -| Feature | Web Client | TUI | Gap Priority | -| --------------------------------- | ---------- | --- | ----------------- | -| **Resources** | -| List resources | ✅ | ✅ | - | -| Read resource content | ✅ | ✅ | - | -| List resource templates | ✅ | ✅ | - | -| Read templated resources | ✅ | ✅ | - | -| Resource subscriptions | ✅ | ❌ | Medium | -| **Prompts** | -| List prompts | ✅ | ✅ | - | -| Get prompt (no params) | ✅ | ✅ | - | -| Get prompt (with params) | ✅ | ✅ | - | -| **Tools** | -| List tools | ✅ | ✅ | - | -| Call tool | ✅ | ✅ | - | -| **Authentication** | -| OAuth 2.1 flow | ✅ | ❌ | High | -| Custom headers | ✅ | ❌ | Medium | -| **Advanced Features** | -| Sampling requests | ✅ | ❌ | High | -| Elicitation requests | ✅ | ❌ | High | -| Completions (resource templates) | ✅ | ❌ | Medium | -| Completions (prompts with params) | ✅ | ❌ | Medium | -| **Other** | -| HTTP request tracking | ❌ | ✅ | - (TUI advantage) | +## Feature Comparison + +**InspectorClient** is the shared client library that provides the core MCP functionality. Both the TUI and web client use `InspectorClient` under the hood. The gaps documented here are primarily **UI-level gaps** - features that `InspectorClient` supports but are not yet exposed in the TUI interface. + +| Feature | InspectorClient | Web Client UI | TUI | Gap Priority | +| ----------------------------------- | --------------- | ------------- | --- | ----------------- | +| **Resources** | +| List resources | ✅ | ✅ | ✅ | - | +| Read resource content | ✅ | ✅ | ✅ | - | +| List resource templates | ✅ | ✅ | ✅ | - | +| Read templated resources | ✅ | ✅ | ✅ | - | +| Resource subscriptions | ❌ | ✅ | ❌ | Medium | +| Resources listChanged notifications | ❌ | ✅ | ❌ | Medium | +| **Prompts** | +| List prompts | ✅ | ✅ | ✅ | - | +| Get prompt (no params) | ✅ | ✅ | ✅ | - | +| Get prompt (with params) | ✅ | ✅ | ✅ | - | +| Prompts listChanged notifications | ❌ | ✅ | ❌ | Medium | +| **Tools** | +| List tools | ✅ | ✅ | ✅ | - | +| Call tool | ✅ | ✅ | ✅ | - | +| Tools listChanged notifications | ❌ | ✅ | ❌ | Medium | +| **Roots** | +| List roots | ❌ | ✅ | ❌ | Medium | +| Set roots | ❌ | ✅ | ❌ | Medium | +| Roots listChanged notifications | ❌ | ✅ | ❌ | Medium | +| **Authentication** | +| OAuth 2.1 flow | ❌ | ✅ | ❌ | High | +| Custom headers | ✅ (config) | ✅ (UI) | ❌ | Medium | +| **Advanced Features** | +| Sampling requests | ✅ | ✅ | ❌ | High | +| Elicitation requests | ✅ | ✅ | ❌ | High | +| Completions (resource templates) | ✅ | ✅ | ❌ | Medium | +| Completions (prompts with params) | ✅ | ✅ | ❌ | Medium | +| **Other** | +| HTTP request tracking | ✅ | ❌ | ✅ | - (TUI advantage) | ## Detailed Feature Gaps -### 1. Reading and Displaying Resource Content - -**Web Client Support:** - -- Calls `resources/read` method to fetch actual resource content -- `resources/read` returns `{ contents: [{ uri, mimeType, text, ... }] }` - the actual resource content (file text, data, etc.) -- Displays resource content in `JsonView` component -- Has "Refresh" button to re-read resource content -- Stores read content in `resourceContent` state and `resourceContentMap` for caching - -**TUI Status:** - -- ✅ **Calls `readResource()`** when Enter is pressed on a resource -- ✅ **Displays resource content** in the details pane as JSON -- ✅ Shows "[Enter to Fetch Resource]" prompt in details pane -- ✅ Fetches and displays actual resource contents - -**Implementation:** - -- Press Enter on a resource to call `inspectorClient.readResource(uri)` -- Resource content is displayed in the details pane as JSON -- Content is fetched on-demand when Enter is pressed -- Loading state is shown while fetching - -**Code References:** - -- TUI: `tui/src/components/ResourcesTab.tsx` (lines 158-180) - `readResource()` call and content display -- TUI: `tui/src/components/ResourcesTab.tsx` (lines 360, 423) - "[Enter to Fetch Resource]" prompts -- `InspectorClient`: Has `readResource()` method (line 535-554) - -**Note:** ✅ **COMPLETED** - TUI can now fetch and display resource contents. - -### 2. Resource Templates - -**Web Client Support:** - -- Lists resource templates via `resources/templates/list` -- Displays templates with URI template patterns (e.g., `file://{path}`) -- Provides form UI for filling template variables -- Uses URI template expansion (`UriTemplate.expand()`) to generate final URIs -- Supports completion requests for template variable values -- Reads resources from expanded template URIs - -**TUI Status:** - -- ✅ Support for listing resource templates (displayed in ResourcesTab) -- ✅ Support for reading templated resources via modal form -- ✅ URI template expansion using `UriTemplate.expand()` -- ✅ Template variable input UI via `ResourceTestModal` -- ❌ Completion support for template variable values (still needed) - -**Implementation:** - -- Resource templates are listed in ResourcesTab alongside regular resources -- Press Enter on a template to open `ResourceTestModal` -- Modal form collects template variable values -- Expanded URI is used to read the resource -- Resource content is displayed in the modal results - -**Code References:** - -- TUI: `tui/src/components/ResourcesTab.tsx` (lines 249-275) - Template listing and selection -- TUI: `tui/src/components/ResourceTestModal.tsx` - Template form and resource reading -- TUI: `tui/src/utils/uriTemplateToForm.ts` - Converts URI template to form structure -- `InspectorClient`: Has `listResourceTemplates()` and `readResource()` methods - -**Note:** ✅ **COMPLETED** - TUI can now list and read templated resources. Completion support for template variables is still needed. - -### 3. Resource Subscriptions +### 1. Resource Subscriptions **Web Client Support:** @@ -130,7 +71,7 @@ This document details the feature gaps between the TUI (Terminal User Interface) - Web client: `client/src/App.tsx` (lines 781-809) - Web client: `client/src/components/ResourcesTab.tsx` (lines 207-221) -### 4. OAuth 2.1 Authentication +### 2. OAuth 2.1 Authentication **Web Client Support:** @@ -164,181 +105,298 @@ This document details the feature gaps between the TUI (Terminal User Interface) **Note:** OAuth in TUI requires a browser-based flow with a localhost callback server, which is feasible but different from the web client's approach. -### 5. Sampling Requests +### 3. Sampling Requests + +**InspectorClient Support:** + +- ✅ Declares `sampling: {}` capability in client initialization (via `sample` option, default: `true`) +- ✅ Sets up request handler for `sampling/createMessage` requests automatically +- ✅ Tracks pending sampling requests via `getPendingSamples()` +- ✅ Provides `SamplingCreateMessage` class with `respond()` and `reject()` methods +- ✅ Dispatches `newPendingSample` and `pendingSamplesChange` events +- ✅ Methods: `getPendingSamples()`, `removePendingSample(id)` **Web Client Support:** -- Declares `sampling: {}` capability in client initialization -- Sets up request handler for `sampling/createMessage` requests - UI tab (`SamplingTab`) displays pending sampling requests - `SamplingRequest` component shows request details and approval UI -- Handles approve/reject actions -- Tracks pending requests in state +- Handles approve/reject actions via `SamplingCreateMessage.respond()`/`reject()` +- Listens to `newPendingSample` events to update UI **TUI Status:** -- ❌ No sampling support -- ❌ No sampling request handler - ❌ No UI for sampling requests +- ❌ No sampling request display or handling UI **Implementation Requirements:** -- Add sampling capability declaration to `InspectorClient` client initialization -- Add `setSamplingHandler()` method to `InspectorClient` (or use `getClient().setRequestHandler()`) -- Add UI in TUI for displaying and handling sampling requests +- Add UI in TUI for displaying pending sampling requests +- Add UI for approve/reject actions (call `respond()` or `reject()` on `SamplingCreateMessage`) +- Listen to `newPendingSample` and `pendingSamplesChange` events - Add sampling tab or integrate into existing tabs **Code References:** -- Web client: `client/src/lib/hooks/useConnection.ts` (line 420) +- `InspectorClient`: `shared/mcp/inspectorClient.ts` (lines 85-87, 225-226, 401-417, 573-600) - Web client: `client/src/components/SamplingTab.tsx` - Web client: `client/src/components/SamplingRequest.tsx` - Web client: `client/src/App.tsx` (lines 328-333, 637-652) -### 6. Elicitation Requests +### 4. Elicitation Requests + +**InspectorClient Support:** + +- ✅ Declares `elicitation: {}` capability in client initialization (via `elicit` option, default: `true`) +- ✅ Sets up request handler for `elicitation/create` requests automatically +- ✅ Tracks pending elicitation requests via `getPendingElicitations()` +- ✅ Provides `ElicitationCreateMessage` class with `respond()` and `remove()` methods +- ✅ Dispatches `newPendingElicitation` and `pendingElicitationsChange` events +- ✅ Methods: `getPendingElicitations()`, `removePendingElicitation(id)` **Web Client Support:** -- Declares `elicitation: {}` capability in client initialization -- Sets up request handler for `elicitation/create` requests - UI tab (`ElicitationTab`) displays pending elicitation requests - `ElicitationRequest` component: - Shows request message and schema - Generates dynamic form from JSON schema - Validates form data against schema - - Handles accept/decline/cancel actions -- Tracks pending requests in state + - Handles accept/decline/cancel actions via `ElicitationCreateMessage.respond()` +- Listens to `newPendingElicitation` events to update UI **TUI Status:** -- ❌ No elicitation support -- ❌ No elicitation request handler - ❌ No UI for elicitation requests +- ❌ No elicitation request display or handling UI **Implementation Requirements:** -- Add elicitation capability declaration to `InspectorClient` client initialization -- Add `setElicitationHandler()` method to `InspectorClient` (or use `getClient().setRequestHandler()`) -- Add UI in TUI for displaying and handling elicitation requests +- Add UI in TUI for displaying pending elicitation requests - Add form generation from JSON schema (similar to tool parameter forms) +- Add UI for accept/decline/cancel actions (call `respond()` on `ElicitationCreateMessage`) +- Listen to `newPendingElicitation` and `pendingElicitationsChange` events - Add elicitation tab or integrate into existing tabs **Code References:** -- Web client: `client/src/lib/hooks/useConnection.ts` (line 421, 810-813) +- `InspectorClient`: `shared/mcp/inspectorClient.ts` (lines 90-92, 227-228, 420-433, 606-639) - Web client: `client/src/components/ElicitationTab.tsx` - Web client: `client/src/components/ElicitationRequest.tsx` - Web client: `client/src/App.tsx` (lines 334-356, 653-669) - Web client: `client/src/utils/schemaUtils.ts` (schema resolution for elicitation) -### 7. Completions +### 5. Completions + +**InspectorClient Support:** + +- ✅ `getCompletions()` method sends `completion/complete` requests +- ✅ Supports resource template completions: `{ type: "ref/resource", uri: string }` +- ✅ Supports prompt argument completions: `{ type: "ref/prompt", name: string }` +- ✅ Handles `MethodNotFound` errors gracefully (returns empty array if server doesn't support completions) +- ✅ Completion requests include: + - `ref`: Resource template URI or prompt name + - `argument`: Field name and current (partial) value + - `context`: Optional context with other argument values +- ✅ Returns `{ values: string[] }` with completion suggestions **Web Client Support:** - Detects completion capability via `serverCapabilities.completions` -- `handleCompletion()` function sends `completion/complete` requests +- `handleCompletion()` function calls `InspectorClient.getCompletions()` - Used in resource template forms for autocomplete - Used in prompt forms with parameters for autocomplete -- `useCompletionState` hook manages completion state -- Completion requests include: - - `ref`: Resource or prompt reference - - `argument`: Field name and current value - - `context`: Additional context (template values or prompt argument values) +- `useCompletionState` hook manages completion state and debouncing **TUI Status:** - ✅ Prompt fetching with parameters - **COMPLETED** (modal form for collecting prompt arguments) - ❌ No completion support for resource template forms - ❌ No completion support for prompt parameter forms -- ❌ No completion capability detection -- ❌ No completion request handling +- ❌ No completion capability detection in UI +- ❌ No completion request handling in UI **Implementation Requirements:** -- Add completion capability detection (already available via `getCapabilities()?.completions`) -- Add `handleCompletion()` method to `InspectorClient` (or document access via `getClient()`) -- Integrate completion support into TUI forms: - - **Resource template forms** - autocomplete for template variable values - - **Prompt parameter forms** - autocomplete for prompt argument values -- Add completion state management +- Add completion capability detection in TUI (via `InspectorClient.getCapabilities()?.completions`) +- Integrate `InspectorClient.getCompletions()` into TUI forms: + - **Resource template forms** (`ResourceTestModal`) - autocomplete for template variable values + - **Prompt parameter forms** (`PromptTestModal`) - autocomplete for prompt argument values +- Add completion state management (debouncing, loading states) +- Trigger completions on input change with debouncing **Code References:** +- `InspectorClient`: `shared/mcp/inspectorClient.ts` (lines 902-966) - `getCompletions()` method - Web client: `client/src/lib/hooks/useConnection.ts` (lines 309, 384-386) - Web client: `client/src/lib/hooks/useCompletionState.ts` - Web client: `client/src/components/ResourcesTab.tsx` (lines 88-101) - TUI: `tui/src/components/PromptTestModal.tsx` - Prompt form (needs completion integration) - TUI: `tui/src/components/ResourceTestModal.tsx` - Resource template form (needs completion integration) -### 8. Custom Headers +### 6. ListChanged Notifications + +**Use Case:** + +MCP servers can send `listChanged` notifications when the list of tools, resources, or prompts changes. This allows clients to automatically refresh their UI when the server's capabilities change, without requiring manual refresh actions. **Web Client Support:** -- Custom header management (migration from legacy auth) -- Header validation -- OAuth token injection into headers -- Special header processing (`x-custom-auth-headers`) -- Headers passed to transport creation +- **Capability Declaration**: Declares `roots: { listChanged: true }` in client capabilities +- **Notification Handlers**: Sets up handlers for: + - `notifications/tools/list_changed` + - `notifications/resources/list_changed` + - `notifications/prompts/list_changed` +- **Auto-refresh**: When a `listChanged` notification is received, the web client automatically calls the corresponding `list*()` method to refresh the UI +- **Notification Processing**: All notifications are passed to `onNotification` callback, which stores them in state for display + +**InspectorClient Status:** + +- ❌ No notification handlers for `listChanged` notifications +- ❌ No automatic list refresh on `listChanged` notifications +- ❌ TODO comment in `fetchServerContents()` mentions adding support for `listChanged` notifications **TUI Status:** -- ❌ No custom header support -- ❌ No header configuration UI +- ❌ No notification handlers for `listChanged` notifications +- ❌ No automatic list refresh on `listChanged` notifications **Implementation Requirements:** -- Add `headers` support to `MCPServerConfig` (already exists for SSE and StreamableHTTP) -- Add header configuration in TUI server config -- Pass headers to transport creation (already supported in `createTransport()`) +- Add notification handlers in `InspectorClient.connect()` for `listChanged` notifications +- When a `listChanged` notification is received, automatically call the corresponding `list*()` method +- Dispatch events to notify UI of list changes +- Add UI in TUI to handle and display these notifications (optional, but useful for debugging) **Code References:** -- Web client: `client/src/lib/hooks/useConnection.ts` (lines 447-480) -- `InspectorClient`: Headers already supported in `MCPServerConfig` types +- Web client: `client/src/lib/hooks/useConnection.ts` (lines 422-424, 699-704) - Capability declaration and notification handlers +- `InspectorClient`: `shared/mcp/inspectorClient.ts` (line 1004) - TODO comment about listChanged support -## Implementation Priority +### 7. Roots Support -### Critical Priority (Core Functionality) +**Use Case:** -1. ✅ **Read Resource Content** - **COMPLETED** - TUI can now fetch and display resource contents -2. ✅ **Resource Templates** - **COMPLETED** - TUI can list and read templated resources +Roots are file system paths (as `file://` URIs) that define which directories an MCP server can access. This is a security feature that allows servers to operate within a sandboxed set of directories. Clients can: -### High Priority (Core MCP Features) +- List the current roots configured on the server +- Set/update the roots (if the server supports it) +- Receive notifications when roots change -3. **OAuth** - Required for many MCP servers, critical for production use -4. **Sampling** - Core MCP capability, enables LLM sampling workflows -5. **Elicitation** - Core MCP capability, enables interactive workflows +**Web Client Support:** -### Medium Priority (Enhanced Features) +- **Capability Declaration**: Declares `roots: { listChanged: true }` in client capabilities +- **UI Component**: `RootsTab` component allows users to: + - View current roots + - Add new roots (with URI and optional name) + - Remove roots + - Save changes (calls `listRoots` with updated roots) +- **Roots Management**: + - `getRoots` callback passed to `useConnection` hook + - Roots are stored in component state + - When roots are changed, `handleRootsChange` is called to send updated roots to server +- **Notification Support**: Handles `notifications/roots/list_changed` notifications (via fallback handler) + +**InspectorClient Status:** + +- ❌ No `listRoots()` method +- ❌ No `setRoots(roots)` method +- ❌ No notification handler for `notifications/roots/list_changed` +- ❌ No `roots: { listChanged: true }` capability declaration + +**TUI Status:** + +- ❌ No roots management UI +- ❌ No roots configuration support + +**Implementation Requirements:** + +- Add `listRoots()` method to `InspectorClient` (calls `roots/list` MCP method) +- Add `setRoots(roots)` method to `InspectorClient` (calls `roots/set` MCP method, if supported) +- Add notification handler for `notifications/roots/list_changed` +- Add `roots: { listChanged: true }` capability declaration in `InspectorClient.connect()` +- Add UI in TUI for managing roots (similar to web client's `RootsTab`) + +**Code References:** + +- Web client: `client/src/components/RootsTab.tsx` - Roots management UI +- Web client: `client/src/lib/hooks/useConnection.ts` (lines 422-424, 357) - Capability declaration and `getRoots` callback +- Web client: `client/src/App.tsx` (lines 1225-1229) - RootsTab usage + +### 8. Custom Headers + +**Use Case:** + +Custom headers are used to send additional HTTP headers when connecting to MCP servers over HTTP-based transports (SSE or streamable-http). Common use cases include: + +- **Authentication**: API keys, bearer tokens, or custom authentication schemes + - Example: `Authorization: Bearer ` + - Example: `X-API-Key: ` +- **Multi-tenancy**: Tenant or organization identifiers + - Example: `X-Tenant-ID: acme-inc` +- **Environment identification**: Staging vs production + - Example: `X-Environment: staging` +- **Custom server requirements**: Any headers required by the MCP server + +**InspectorClient Support:** + +- ✅ `MCPServerConfig` supports `headers: Record` for SSE and streamable-http transports +- ✅ Headers are passed to the SDK transport during creation +- ✅ Headers are included in all HTTP requests to the MCP server +- ✅ Works with both SSE and streamable-http transports +- ❌ Not supported for stdio transport (stdio doesn't use HTTP) + +**Web Client Support:** -6. **Resource Subscriptions** - Useful for real-time resource updates -7. **Completions** - Enhances UX for form filling -8. **Custom Headers** - Useful for custom authentication schemes +- **UI Component**: `CustomHeaders` component in the Sidebar's authentication section +- **Features**: + - Add/remove headers with name/value pairs + - Enable/disable individual headers (toggle switch) + - Mask header values by default (password field with show/hide toggle) + - Form mode: Individual header inputs + - JSON mode: Edit all headers as a JSON object + - Validation: Only enabled headers with both name and value are sent +- **Integration**: + - Headers are stored in component state + - Passed to `useConnection` hook + - Converted to `Record` format for transport + - OAuth tokens can be automatically injected into `Authorization` header if no custom `Authorization` header exists + - Custom header names are tracked and sent to the proxy server via `x-custom-auth-headers` header -## Implementation Strategy +**TUI Status:** + +- ❌ No header configuration UI +- ❌ No way for users to specify custom headers in TUI server config +- ✅ `InspectorClient` supports headers if provided in config (but TUI doesn't expose this) + +**Implementation Requirements:** -### Phase 0: Critical Resource Reading (Immediate) +- Add header configuration UI in TUI server configuration +- Allow users to add/edit/remove headers similar to web client +- Store headers in TUI server config +- Pass headers to `InspectorClient` via `MCPServerConfig.headers` +- Consider masking sensitive header values in the UI -1. ✅ **Implement resource content reading and display** - **COMPLETED** - Added ability to call `readResource()` and display content -2. ✅ **Resource templates** - **COMPLETED** - Added listing and reading templated resources with form UI +**Code References:** -### Phase 1: Core Resource Features +- Web client: `client/src/components/CustomHeaders.tsx` - Header management UI component +- Web client: `client/src/lib/hooks/useConnection.ts` (lines 453-514) - Header processing and transport creation +- `InspectorClient`: `shared/mcp/config.ts` (lines 118-129) - Headers in `MCPServerConfig` +- `InspectorClient`: `shared/mcp/transport.ts` (lines 100-134) - Headers passed to SDK transports -1. ✅ **Resource templates** - **COMPLETED** (listing, reading templated resources with form UI) -2. ✅ **Prompt fetching with parameters** - **COMPLETED** (modal form for collecting prompt arguments) -3. Add resource subscriptions support +## Implementation Priority -### Phase 2: Authentication +### High Priority (Core MCP Features) -1. Implement OAuth flow for TUI (browser-based with localhost callback) -2. Add custom headers support +1. **OAuth** - Required for many MCP servers, critical for production use +2. **Sampling** - Core MCP capability, enables LLM sampling workflows +3. **Elicitation** - Core MCP capability, enables interactive workflows -### Phase 3: Advanced MCP Features +### Medium Priority (Enhanced Features) -1. Implement sampling request handling -2. Implement elicitation request handling -3. Add completion support for resource template forms -4. Add completion support for prompt parameter forms +4. **Resource Subscriptions** - Useful for real-time resource updates +5. **Completions** - Enhances UX for form filling +6. **Custom Headers** - Useful for custom authentication schemes +7. **ListChanged Notifications** - Auto-refresh lists when server data changes +8. **Roots Support** - Manage file system access for servers ## InspectorClient Extensions Needed @@ -347,56 +405,61 @@ Based on this analysis, `InspectorClient` needs the following additions: 1. **Resource Methods** (some already exist): - ✅ `readResource(uri, metadata?)` - Already exists - ✅ `listResourceTemplates()` - Already exists + - ✅ Resource template `list` callback support - Already exists (via `listResources()`) - ❌ `subscribeResource(uri)` - Needs to be added - ❌ `unsubscribeResource(uri)` - Needs to be added -2. **Request Handlers**: - - ❌ `setSamplingHandler(handler)` - Or document using `getClient().setRequestHandler()` - - ❌ `setElicitationHandler(handler)` - Or document using `getClient().setRequestHandler()` - - ❌ `setPendingRequestHandler(handler)` - Or document using `getClient().setRequestHandler()` - -3. **Completion Support**: - - ❌ `handleCompletion(ref, argument, context?)` - Needs to be added or documented - - ❌ Integration into `ResourceTestModal` for template variable completion - - ❌ Integration into `PromptTestModal` for prompt argument completion - -4. **OAuth Support**: +2. **Sampling Support**: + - ✅ `getPendingSamples()` - Already exists + - ✅ `removePendingSample(id)` - Already exists + - ✅ `SamplingCreateMessage.respond(result)` - Already exists + - ✅ `SamplingCreateMessage.reject(error)` - Already exists + - ✅ Automatic request handler setup - Already exists + - ✅ `sampling: {}` capability declaration - Already exists (via `sample` option) + +3. **Elicitation Support**: + - ✅ `getPendingElicitations()` - Already exists + - ✅ `removePendingElicitation(id)` - Already exists + - ✅ `ElicitationCreateMessage.respond(result)` - Already exists + - ✅ Automatic request handler setup - Already exists + - ✅ `elicitation: {}` capability declaration - Already exists (via `elicit` option) + +4. **Completion Support**: + - ✅ `getCompletions(ref, argumentName, argumentValue, context?, metadata?)` - Already exists + - ✅ Supports resource template completions - Already exists + - ✅ Supports prompt argument completions - Already exists + - ❌ Integration into TUI `ResourceTestModal` for template variable completion + - ❌ Integration into TUI `PromptTestModal` for prompt argument completion + +5. **OAuth Support**: - ❌ OAuth token management - ❌ OAuth flow initiation - ❌ Token injection into headers -5. **Client Capabilities**: - - ❌ Declare `sampling: {}` capability in client initialization - - ❌ Declare `elicitation: {}` capability in client initialization - - ❌ Declare `roots: { listChanged: true }` capability in client initialization +6. **ListChanged Notifications**: + - ❌ Notification handlers for `notifications/tools/list_changed` - Needs to be added + - ❌ Notification handlers for `notifications/resources/list_changed` - Needs to be added + - ❌ Notification handlers for `notifications/prompts/list_changed` - Needs to be added + - ❌ Auto-refresh lists when notifications received - Needs to be added + +7. **Roots Support**: + - ❌ `listRoots()` method - Needs to be added + - ❌ `setRoots(roots)` method - Needs to be added + - ❌ Notification handler for `notifications/roots/list_changed` - Needs to be added + - ❌ `roots: { listChanged: true }` capability declaration - Needs to be added ## Notes -- **HTTP Request Tracking**: TUI has this feature, web client does not. This is a TUI advantage, not a gap. -- **Resource Subscriptions**: Web client supports this, but TUI does not. This is a gap to address. -- **OAuth**: Web client has full OAuth support. TUI needs browser-based OAuth flow with localhost callback server. -- **Completions**: Web client uses completions for resource template forms and prompt parameter forms. TUI now has both resource template forms and prompt parameter forms, but completion support is still needed to provide autocomplete suggestions. -- **Prompt Fetching**: TUI now supports fetching prompts with parameters via a modal form, matching web client functionality. +- **HTTP Request Tracking**: `InspectorClient` tracks HTTP requests for SSE and streamable-http transports via `getFetchRequests()`. TUI displays these requests in a `RequestsTab`. Web client does not currently display HTTP request tracking, though the underlying `InspectorClient` supports it. This is a TUI advantage, not a gap. +- **Resource Subscriptions**: Web client supports this, but TUI does not. `InspectorClient` does not yet support resource subscriptions. +- **OAuth**: Web client has full OAuth support. TUI needs browser-based OAuth flow with localhost callback server. `InspectorClient` does not yet support OAuth. +- **Completions**: `InspectorClient` has full completion support via `getCompletions()`. Web client uses this for resource template forms and prompt parameter forms. TUI has both resource template forms and prompt parameter forms, but completion support is still needed to provide autocomplete suggestions. +- **Sampling**: `InspectorClient` has full sampling support. Web client UI displays and handles sampling requests. TUI needs UI to display and handle sampling requests. +- **Elicitation**: `InspectorClient` has full elicitation support. Web client UI displays and handles elicitation requests. TUI needs UI to display and handle elicitation requests. +- **ListChanged Notifications**: Web client handles `listChanged` notifications for tools, resources, and prompts, automatically refreshing lists when notifications are received. `InspectorClient` does not yet support these notifications. TUI also does not support them. +- **Roots**: Web client has full roots support with a `RootsTab` for managing file system roots. `InspectorClient` does not yet support roots (no `listRoots()` or `setRoots()` methods). TUI also does not support roots. ## Related Documentation - [Shared Code Architecture](./shared-code-architecture.md) - Overall architecture and integration plan - [InspectorClient Details](./inspector-client-details.svg) - Visual diagram of InspectorClient responsibilities - -## In Work - -### Sampling - -Instead of a boolean, we could use a callback that accepts the params from a sampling message and returns the response to a sampling message (if the callback is present, advertise sampling and also handle sampling/createMessage messages using the callback). Maybe? - -The webux shows a dialog (in a pane) for the user to completed and approve/reject the completion. We should copy that. - -But it would also be nice to have this supported in the InspectorClient somehow - -- For exmple, we could have a test fixture tool that triggered sampling -- And a sampling function that returned some result (via provided callback) -- Then we could test the sampling support in the InspectorClient (call tool, check result to make sure it includes expected sampling data) - -Could a callback provided to the InspectorClient trigger a UX action (modal or other) and then on completion could we complete the sampling request? - -- Would we need to have a separate sampling completion entrypoint? From 77f8143874e656be9da40c48b22e4d1c21aca331 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Thu, 22 Jan 2026 17:18:27 -0800 Subject: [PATCH 31/44] Added roots support to InspectorClient, added tests for same --- docs/tui-web-client-feature-gaps.md | 42 +++--- shared/__tests__/inspectorClient.test.ts | 148 +++++++++++++++++++++ shared/mcp/inspectorClient.ts | 70 ++++++++++ shared/test/test-server-fixtures.ts | 41 +++++- shared/test/test-server-http.ts | 161 +++++++++-------------- 5 files changed, 344 insertions(+), 118 deletions(-) diff --git a/docs/tui-web-client-feature-gaps.md b/docs/tui-web-client-feature-gaps.md index 8ba3cc9a9..d8f63879b 100644 --- a/docs/tui-web-client-feature-gaps.md +++ b/docs/tui-web-client-feature-gaps.md @@ -27,9 +27,9 @@ This document details the feature gaps between the TUI (Terminal User Interface) | Call tool | ✅ | ✅ | ✅ | - | | Tools listChanged notifications | ❌ | ✅ | ❌ | Medium | | **Roots** | -| List roots | ❌ | ✅ | ❌ | Medium | -| Set roots | ❌ | ✅ | ❌ | Medium | -| Roots listChanged notifications | ❌ | ✅ | ❌ | Medium | +| List roots | ✅ | ✅ | ❌ | Medium | +| Set roots | ✅ | ✅ | ❌ | Medium | +| Roots listChanged notifications | ✅ | ✅ | ❌ | Medium | | **Authentication** | | OAuth 2.1 flow | ❌ | ✅ | ❌ | High | | Custom headers | ✅ (config) | ✅ (UI) | ❌ | Medium | @@ -295,12 +295,15 @@ Roots are file system paths (as `file://` URIs) that define which directories an - When roots are changed, `handleRootsChange` is called to send updated roots to server - **Notification Support**: Handles `notifications/roots/list_changed` notifications (via fallback handler) -**InspectorClient Status:** +**InspectorClient Support:** -- ❌ No `listRoots()` method -- ❌ No `setRoots(roots)` method -- ❌ No notification handler for `notifications/roots/list_changed` -- ❌ No `roots: { listChanged: true }` capability declaration +- ✅ `getRoots()` method - Returns current roots +- ✅ `setRoots(roots)` method - Updates roots and sends notification to server if supported +- ✅ Handler for `roots/list` requests from server (returns current roots) +- ✅ Notification handler for `notifications/roots/list_changed` from server +- ✅ `roots: { listChanged: true }` capability declaration (when `roots` option is provided) +- ✅ `rootsChange` event dispatched when roots are updated +- ✅ Roots configured via `roots` option in `InspectorClientOptions` (even empty array enables capability) **TUI Status:** @@ -309,14 +312,15 @@ Roots are file system paths (as `file://` URIs) that define which directories an **Implementation Requirements:** -- Add `listRoots()` method to `InspectorClient` (calls `roots/list` MCP method) -- Add `setRoots(roots)` method to `InspectorClient` (calls `roots/set` MCP method, if supported) -- Add notification handler for `notifications/roots/list_changed` -- Add `roots: { listChanged: true }` capability declaration in `InspectorClient.connect()` -- Add UI in TUI for managing roots (similar to web client's `RootsTab`) +- ✅ `getRoots()` and `setRoots()` methods - **COMPLETED** in `InspectorClient` +- ✅ Handler for `roots/list` requests - **COMPLETED** in `InspectorClient` +- ✅ Notification handler for `notifications/roots/list_changed` - **COMPLETED** in `InspectorClient` +- ✅ `roots: { listChanged: true }` capability declaration - **COMPLETED** in `InspectorClient` +- ❌ Add UI in TUI for managing roots (similar to web client's `RootsTab`) **Code References:** +- `InspectorClient`: `shared/mcp/inspectorClient.ts` - `getRoots()`, `setRoots()`, roots/list handler, and notification support - Web client: `client/src/components/RootsTab.tsx` - Roots management UI - Web client: `client/src/lib/hooks/useConnection.ts` (lines 422-424, 357) - Capability declaration and `getRoots` callback - Web client: `client/src/App.tsx` (lines 1225-1229) - RootsTab usage @@ -443,10 +447,12 @@ Based on this analysis, `InspectorClient` needs the following additions: - ❌ Auto-refresh lists when notifications received - Needs to be added 7. **Roots Support**: - - ❌ `listRoots()` method - Needs to be added - - ❌ `setRoots(roots)` method - Needs to be added - - ❌ Notification handler for `notifications/roots/list_changed` - Needs to be added - - ❌ `roots: { listChanged: true }` capability declaration - Needs to be added + - ✅ `getRoots()` method - Already exists + - ✅ `setRoots(roots)` method - Already exists + - ✅ Handler for `roots/list` requests - Already exists + - ✅ Notification handler for `notifications/roots/list_changed` - Already exists + - ✅ `roots: { listChanged: true }` capability declaration - Already exists (when `roots` option provided) + - ❌ Integration into TUI for managing roots ## Notes @@ -457,7 +463,7 @@ Based on this analysis, `InspectorClient` needs the following additions: - **Sampling**: `InspectorClient` has full sampling support. Web client UI displays and handles sampling requests. TUI needs UI to display and handle sampling requests. - **Elicitation**: `InspectorClient` has full elicitation support. Web client UI displays and handles elicitation requests. TUI needs UI to display and handle elicitation requests. - **ListChanged Notifications**: Web client handles `listChanged` notifications for tools, resources, and prompts, automatically refreshing lists when notifications are received. `InspectorClient` does not yet support these notifications. TUI also does not support them. -- **Roots**: Web client has full roots support with a `RootsTab` for managing file system roots. `InspectorClient` does not yet support roots (no `listRoots()` or `setRoots()` methods). TUI also does not support roots. +- **Roots**: `InspectorClient` has full roots support with `getRoots()` and `setRoots()` methods, handler for `roots/list` requests, and notification support. Web client has a `RootsTab` UI for managing roots. TUI does not yet have UI for managing roots. ## Related Documentation diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index 0e6f1c3ad..8fb512716 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -16,6 +16,7 @@ import { createCollectSampleTool, createCollectElicitationTool, createSendNotificationTool, + createListRootsTool, createArgsPrompt, } from "../test/test-server-fixtures.js"; import type { MessageEntry } from "../mcp/types.js"; @@ -1241,6 +1242,153 @@ describe("InspectorClient", () => { }); }); + describe("Roots Support", () => { + it("should handle roots/list request from server and return roots", async () => { + // Create a test server with the listRoots tool + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createListRootsTool()], + serverType: "streamable-http", + }); + + await server.start(); + + // Create client with roots enabled + const initialRoots = [ + { uri: "file:///test1", name: "Test Root 1" }, + { uri: "file:///test2", name: "Test Root 2" }, + ]; + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + roots: initialRoots, // Enable roots capability + }, + ); + + await client.connect(); + + // Call the listRoots tool - it will call roots/list on the client + const toolResult = await client.callTool("listRoots", {}); + + // Verify the tool result contains the roots + expect(toolResult).toBeDefined(); + expect(toolResult.content).toBeDefined(); + expect(Array.isArray(toolResult.content)).toBe(true); + const toolContent = toolResult.content as any[]; + expect(toolContent.length).toBeGreaterThan(0); + const toolMessage = toolContent[0]; + expect(toolMessage).toBeDefined(); + expect(toolMessage.type).toBe("text"); + if (toolMessage.type === "text") { + expect(toolMessage.text).toContain("Roots:"); + expect(toolMessage.text).toContain("file:///test1"); + expect(toolMessage.text).toContain("file:///test2"); + } + + // Verify getRoots() returns the roots + const roots = client.getRoots(); + expect(roots).toEqual(initialRoots); + + await client.disconnect(); + await server.stop(); + }); + + it("should send roots/list_changed notification when roots are updated", async () => { + // Create a test server - clients can send roots/list_changed notifications to any server + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + serverType: "streamable-http", + }); + + await server.start(); + + // Create client with roots enabled + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + roots: [], // Enable roots capability with empty array + }, + ); + + await client.connect(); + + // Clear any recorded requests from connection + server.clearRecordings(); + + // Update roots + const newRoots = [ + { uri: "file:///new1", name: "New Root 1" }, + { uri: "file:///new2", name: "New Root 2" }, + ]; + await client.setRoots(newRoots); + + // Wait for the notification to be recorded by the server + // The notification is sent asynchronously, so we need to wait for it to appear in recordedRequests + let rootsChangedNotification; + for (let i = 0; i < 50; i++) { + const recordedRequests = server.getRecordedRequests(); + rootsChangedNotification = recordedRequests.find( + (req) => req.method === "notifications/roots/list_changed", + ); + if (rootsChangedNotification) { + break; + } + await new Promise((resolve) => setTimeout(resolve, 10)); + } + + // Verify the notification was sent to the server + expect(rootsChangedNotification).toBeDefined(); + if (rootsChangedNotification) { + expect(rootsChangedNotification.method).toBe( + "notifications/roots/list_changed", + ); + } + + // Verify getRoots() returns the new roots + const roots = client.getRoots(); + expect(roots).toEqual(newRoots); + + // Verify rootsChange event was dispatched + const rootsChangePromise = new Promise((resolve) => { + client.addEventListener( + "rootsChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }); + + // Update roots again to trigger event + await client.setRoots([{ uri: "file:///updated", name: "Updated" }]); + await new Promise((resolve) => setTimeout(resolve, 100)); + + const rootsChangeEvent = await rootsChangePromise; + expect(rootsChangeEvent.detail).toEqual([ + { uri: "file:///updated", name: "Updated" }, + ]); + + // Verify another notification was sent + const updatedRequests = server.getRecordedRequests(); + const secondNotification = updatedRequests.filter( + (req) => req.method === "notifications/roots/list_changed", + ); + expect(secondNotification.length).toBeGreaterThanOrEqual(1); + + await client.disconnect(); + await server.stop(); + }); + }); + describe("Completions", () => { it("should get completions for resource template variable", async () => { // Create a test server with a resource template that has completion support diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index 50619791d..48f181e74 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -34,6 +34,9 @@ import type { import { CreateMessageRequestSchema, ElicitRequestSchema, + ListRootsRequestSchema, + RootsListChangedNotificationSchema, + type Root, } from "@modelcontextprotocol/sdk/types.js"; import { type JsonValue, @@ -90,6 +93,12 @@ export interface InspectorClientOptions { * Whether to advertise elicitation capability (default: true) */ elicit?: boolean; + + /** + * Initial roots to configure. If provided (even if empty array), the client will + * advertise roots capability and handle roots/list requests from the server. + */ + roots?: Root[]; } /** @@ -226,6 +235,8 @@ export class InspectorClient extends EventTarget { private pendingSamples: SamplingCreateMessage[] = []; // Elicitation requests private pendingElicitations: ElicitationCreateMessage[] = []; + // Roots (undefined means roots capability not enabled, empty array means enabled but no roots) + private roots: Root[] | undefined; constructor( private transportConfig: MCPServerConfig, @@ -239,6 +250,8 @@ export class InspectorClient extends EventTarget { this.initialLoggingLevel = options.initialLoggingLevel; this.sample = options.sample ?? true; this.elicit = options.elicit ?? true; + // Only set roots if explicitly provided (even if empty array) - this enables roots capability + this.roots = options.roots; // Set up message tracking callbacks const messageTracking: MessageTrackingCallbacks = { @@ -341,6 +354,10 @@ export class InspectorClient extends EventTarget { if (this.elicit) { capabilities.elicitation = {}; } + // Advertise roots capability if roots option was provided (even if empty array) + if (this.roots !== undefined) { + capabilities.roots = { listChanged: true }; + } if (Object.keys(capabilities).length > 0) { clientOptions.capabilities = capabilities; } @@ -432,6 +449,24 @@ export class InspectorClient extends EventTarget { }); }); } + + // Set up roots/list request handler if roots capability is enabled + if (this.roots !== undefined && this.client) { + this.client.setRequestHandler(ListRootsRequestSchema, async () => { + return { roots: this.roots ?? [] }; + }); + } + + // Set up notification handler for roots/list_changed from server + if (this.client) { + this.client.setNotificationHandler( + RootsListChangedNotificationSchema, + async () => { + // Dispatch event to notify UI that server's roots may have changed + this.dispatchEvent(new Event("rootsChange")); + }, + ); + } } catch (error) { this.status = "error"; this.dispatchEvent( @@ -1135,4 +1170,39 @@ export class InspectorClient extends EventTarget { getFetchRequests(): FetchRequestEntry[] { return [...this.fetchRequests]; } + + /** + * Get current roots + */ + getRoots(): Root[] { + return this.roots !== undefined ? [...this.roots] : []; + } + + /** + * Set roots and notify server if it supports roots/listChanged + * Note: This will enable roots capability if it wasn't already enabled + */ + async setRoots(roots: Root[]): Promise { + if (!this.client) { + throw new Error("Client is not connected"); + } + + // Enable roots capability if not already enabled + if (this.roots === undefined) { + this.roots = []; + } + this.roots = [...roots]; + this.dispatchEvent(new CustomEvent("rootsChange", { detail: this.roots })); + + // Send notification to server - clients can send this notification to any server + // The server doesn't need to advertise support for it + try { + await this.client.notification({ + method: "notifications/roots/list_changed", + }); + } catch (error) { + // Log but don't throw - roots were updated locally even if notification failed + console.error("Failed to send roots/list_changed notification:", error); + } + } } diff --git a/shared/test/test-server-fixtures.ts b/shared/test/test-server-fixtures.ts index ab4d311fa..64745154d 100644 --- a/shared/test/test-server-fixtures.ts +++ b/shared/test/test-server-fixtures.ts @@ -9,8 +9,8 @@ import * as z from "zod/v4"; import type { Implementation } from "@modelcontextprotocol/sdk/types.js"; import { CreateMessageResultSchema, - ElicitRequestSchema, ElicitResultSchema, + ListRootsResultSchema, } from "@modelcontextprotocol/sdk/types.js"; import type { ToolDefinition, @@ -145,6 +145,45 @@ export function createCollectSampleTool(): ToolDefinition { }; } +/** + * Create a "listRoots" tool that calls roots/list and returns the roots + */ +export function createListRootsTool(): ToolDefinition { + return { + name: "listRoots", + description: "List the current roots configured on the client", + inputSchema: {}, + handler: async ( + _params: Record, + server?: McpServer, + ): Promise => { + if (!server) { + throw new Error("Server instance not available"); + } + + try { + // Call roots/list on the client + const result = await server.server.request( + { + method: "roots/list", + }, + ListRootsResultSchema, + ); + + return { + message: `Roots: ${JSON.stringify(result.roots, null, 2)}`, + roots: result.roots, + }; + } catch (error) { + return { + message: `Error listing roots: ${error instanceof Error ? error.message : String(error)}`, + error: true, + }; + } + }, + }; +} + /** * Create a "collectElicitation" tool that sends an elicitation request and returns the response */ diff --git a/shared/test/test-server-http.ts b/shared/test/test-server-http.ts index 4ca801747..cc6ef27ca 100644 --- a/shared/test/test-server-http.ts +++ b/shared/test/test-server-http.ts @@ -84,6 +84,66 @@ export class TestServerHttp { this.mcpServer = createMcpServer(configWithCallback); } + /** + * Set up message interception for a transport to record incoming messages + * This wraps the transport's onmessage handler to record requests/notifications + */ + private setupMessageInterception( + transport: StreamableHTTPServerTransport | SSEServerTransport, + ): void { + const originalOnMessage = transport.onmessage; + transport.onmessage = async (message) => { + const timestamp = Date.now(); + const method = + "method" in message && typeof message.method === "string" + ? message.method + : "unknown"; + const params = "params" in message ? message.params : undefined; + + try { + // Extract metadata from params if present + const metadata = + params && typeof params === "object" && "_meta" in params + ? ((params as any)._meta as Record) + : undefined; + + // Let the server handle the message + if (originalOnMessage) { + await originalOnMessage.call(transport, message); + } + + // Record successful request/notification + this.recordedRequests.push({ + method, + params, + headers: { ...this.currentRequestHeaders }, + metadata: metadata ? { ...metadata } : undefined, + response: { processed: true }, + timestamp, + }); + } catch (error) { + // Extract metadata from params if present + const metadata = + params && typeof params === "object" && "_meta" in params + ? ((params as any)._meta as Record) + : undefined; + + // Record error + this.recordedRequests.push({ + method, + params, + headers: { ...this.currentRequestHeaders }, + metadata: metadata ? { ...metadata } : undefined, + response: { + error: error instanceof Error ? error.message : String(error), + }, + timestamp, + }); + throw error; + } + }; + } + /** * Start the server using the configuration from ServerConfig */ @@ -147,57 +207,7 @@ export class TestServerHttp { }); // Set up message interception for this transport - const originalOnMessage = newTransport.onmessage; - newTransport.onmessage = async (message) => { - const timestamp = Date.now(); - const method = - "method" in message && typeof message.method === "string" - ? message.method - : "unknown"; - const params = "params" in message ? message.params : undefined; - - try { - // Extract metadata from params if present - const metadata = - params && typeof params === "object" && "_meta" in params - ? ((params as any)._meta as Record) - : undefined; - - // Let the server handle the message - if (originalOnMessage) { - await originalOnMessage.call(newTransport, message); - } - - // Record successful request - this.recordedRequests.push({ - method, - params, - headers: { ...this.currentRequestHeaders }, - metadata: metadata ? { ...metadata } : undefined, - response: { processed: true }, - timestamp, - }); - } catch (error) { - // Extract metadata from params if present - const metadata = - params && typeof params === "object" && "_meta" in params - ? ((params as any)._meta as Record) - : undefined; - - // Record error - this.recordedRequests.push({ - method, - params, - headers: { ...this.currentRequestHeaders }, - metadata: metadata ? { ...metadata } : undefined, - response: { - error: error instanceof Error ? error.message : String(error), - }, - timestamp, - }); - throw error; - } - }; + this.setupMessageInterception(newTransport); // Connect the MCP server to this transport await this.mcpServer.connect(newTransport); @@ -283,54 +293,7 @@ export class TestServerHttp { }); // Intercept messages - const originalOnMessage = sseTransport.onmessage; - sseTransport.onmessage = async (message) => { - const timestamp = Date.now(); - const method = - "method" in message && typeof message.method === "string" - ? message.method - : "unknown"; - const params = "params" in message ? message.params : undefined; - - try { - // Extract metadata from params if present - const metadata = - params && typeof params === "object" && "_meta" in params - ? ((params as any)._meta as Record) - : undefined; - - if (originalOnMessage) { - originalOnMessage.call(sseTransport, message); - } - - this.recordedRequests.push({ - method, - params, - headers: { ...this.currentRequestHeaders }, - metadata: metadata ? { ...metadata } : undefined, - response: { processed: true }, - timestamp, - }); - } catch (error) { - // Extract metadata from params if present - const metadata = - params && typeof params === "object" && "_meta" in params - ? ((params as any)._meta as Record) - : undefined; - - this.recordedRequests.push({ - method, - params, - headers: { ...this.currentRequestHeaders }, - metadata: metadata ? { ...metadata } : undefined, - response: { - error: error instanceof Error ? error.message : String(error), - }, - timestamp, - }); - throw error; - } - }; + this.setupMessageInterception(sseTransport); // Connect server to transport (this automatically calls start()) await this.mcpServer.connect(sseTransport); From b0e96c37a61ade4529dd53bb8c13bea193e0de46 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Fri, 23 Jan 2026 12:39:31 -0800 Subject: [PATCH 32/44] Refactor InspectorClient methods to return structured responses for tools, resources, resource templates, and prompts. Update tests to reflect these changes. Updated design docs. --- cli/src/index.ts | 14 +- ...source-subscriptions-listchanged-design.md | 755 ++++++++++++++++++ docs/tui-web-client-feature-gaps.md | 161 ++++ shared/__tests__/inspectorClient.test.ts | 34 +- shared/mcp/inspectorClient.ts | 149 +++- tui/src/components/ResourceTestModal.tsx | 24 +- 6 files changed, 1057 insertions(+), 80 deletions(-) create mode 100644 docs/resource-subscriptions-listchanged-design.md diff --git a/cli/src/index.ts b/cli/src/index.ts index b2408e959..857f20fc8 100644 --- a/cli/src/index.ts +++ b/cli/src/index.ts @@ -183,7 +183,7 @@ async function callMethod(args: Args): Promise { // Tools methods if (args.method === "tools/list") { - result = await inspectorClient.listTools(args.metadata); + result = { tools: await inspectorClient.listTools(args.metadata) }; } else if (args.method === "tools/call") { if (!args.toolName) { throw new Error( @@ -200,7 +200,9 @@ async function callMethod(args: Args): Promise { } // Resources methods else if (args.method === "resources/list") { - result = await inspectorClient.listResources(args.metadata); + result = { + resources: await inspectorClient.listResources(args.metadata), + }; } else if (args.method === "resources/read") { if (!args.uri) { throw new Error( @@ -210,11 +212,15 @@ async function callMethod(args: Args): Promise { result = await inspectorClient.readResource(args.uri, args.metadata); } else if (args.method === "resources/templates/list") { - result = await inspectorClient.listResourceTemplates(args.metadata); + result = { + resourceTemplates: await inspectorClient.listResourceTemplates( + args.metadata, + ), + }; } // Prompts methods else if (args.method === "prompts/list") { - result = await inspectorClient.listPrompts(args.metadata); + result = { prompts: await inspectorClient.listPrompts(args.metadata) }; } else if (args.method === "prompts/get") { if (!args.promptName) { throw new Error( diff --git a/docs/resource-subscriptions-listchanged-design.md b/docs/resource-subscriptions-listchanged-design.md new file mode 100644 index 000000000..3149c7407 --- /dev/null +++ b/docs/resource-subscriptions-listchanged-design.md @@ -0,0 +1,755 @@ +# Resource Subscriptions and ListChanged Notifications Design + +## Overview + +This document outlines the design for adding support for: + +1. **Resource subscriptions** - Subscribe/unsubscribe to resources and handle `notifications/resources/updated` notifications +2. **ListChanged notifications** - Handle `notifications/tools/list_changed`, `notifications/resources/list_changed`, and `notifications/prompts/list_changed` +3. **Resource content caching** - Maintain loaded resource content in InspectorClient state +4. **Prompt content caching** - Maintain loaded prompt content and parameters in InspectorClient state +5. **Tool call result caching** - Maintain the most recent call result for each tool in InspectorClient state + +## Goals + +- Enable InspectorClient to support resource subscriptions (subscribe/unsubscribe) +- Support all listChanged notification types with configurable enable/disable +- Cache loaded resource content to avoid re-fetching when displaying +- Cache loaded prompt content and parameters to avoid re-fetching when displaying +- Cache tool call results to enable UI state persistence (especially useful for React apps) +- Auto-reload lists when listChanged notifications are received +- Auto-reload subscribed resources when resource updated notifications are received +- Emit appropriate events for UI updates + +## Design Decisions + +### 1. Configuration Options + +Add to `InspectorClientOptions`: + +```typescript +export interface InspectorClientOptions { + // ... existing options ... + + /** + * Whether to enable listChanged notification handlers (default: true) + * If enabled, InspectorClient will automatically reload lists when notifications are received + */ + listChangedNotifications?: { + tools?: boolean; // default: true + resources?: boolean; // default: true + prompts?: boolean; // default: true + }; +} +``` + +**Rationale:** + +- Grouped under `listChangedNotifications` object for clarity +- Individual flags allow fine-grained control +- Default to `true` for all to match web client behavior + +### 2. Resource Content Caching + +**Current State:** + +- `InspectorClient` stores `resources: Resource[]` (full resource objects with `uri`, `name`, `description`, `mimeType`, etc.) +- Content is fetched on-demand via `readResource()` but not cached + +**Proposed State:** + +- Keep resource descriptors separate from cached content +- Maintain `resources: Resource[]` for server-provided descriptors +- Add separate cache structure for loaded content + +**Cache Structures:** + +```typescript +// For regular resources (cached by URI) +interface ResourceContentCache { + contents: Array<{ uri: string; mimeType?: string; text: string }>; + timestamp: Date; // When content was loaded +} + +// For resource templates (cached by uriTemplate - the unique ID of the template) +interface ResourceTemplateContentCache { + uriTemplate: string; // The URI template string (unique ID) + expandedUri: string; // The expanded URI + contents: Array<{ uri: string; mimeType?: string; text: string }>; + timestamp: Date; // When content was loaded + templateName: string; // The name/ID of the template + params: Record; // The parameters used to expand the template +} +``` + +**Storage:** + +- `private resources: Resource[]` - Server-provided resource descriptors (unchanged) +- Cache is accessed via `client.cache.getResource(uri)` for regular resources +- Cache is accessed via `client.cache.getResourceTemplate(uriTemplate)` for template-based resources +- The `ContentCache` object internally manages: + - Regular resource content (keyed by URI) + - Resource template content (keyed by uriTemplate - the unique template ID) + - Prompt content + - Tool call results +- Cache is independent of descriptors - can be cleared without affecting server state +- Regular resources and resource templates are cached separately (different maps, different keys) + +**Benefits of Separate Cache Structure:** + +- **True cache semantics** - Can clear cache independently of descriptors without affecting server state +- **Memory management** - Can implement TTL, LRU eviction, size limits in the future without touching descriptors +- **Separation of concerns** - Descriptors (`resources[]`) are server state, cache (`resourceContentCache`) is client state +- **Flexibility** - Can cache multiple versions or implement cache policies without modifying descriptor structure +- **Clear API** - `getResources()` returns descriptors, `client.cache.getResource()` returns cached content +- **Cache invalidation** - Can selectively clear cache entries without reloading descriptors +- **List reload behavior** - When descriptors reload, cache is preserved for existing items, cleaned up for removed items +- Avoid re-fetching when switching between resources in UI +- Enable offline viewing of previously loaded resources +- Support resource update notifications by updating cached content + +### 2b. Prompt Content Caching + +**Current State:** + +- `InspectorClient` stores `prompts: Prompt[]` (full prompt objects with `name`, `description`, `arguments`, etc.) +- Content is fetched on-demand via `getPrompt()` but not cached + +**Proposed State:** + +- Keep prompt descriptors separate from cached content +- Maintain `prompts: Prompt[]` for server-provided descriptors +- Add separate cache structure for loaded content + +**Cache Structure:** + +```typescript +interface PromptContentCache { + messages: Array<{ role: string; content: any }>; + timestamp: Date; // When content was loaded + params?: Record; // The parameters used when fetching the prompt +} +``` + +**Storage:** + +- `private prompts: Prompt[]` - Server-provided prompt descriptors (unchanged) +- Cache is accessed via `client.cache.getPrompt(name)` - single integrated cache object +- The `ContentCache` object internally manages all cached content types +- Cache is independent of descriptors - can be cleared without affecting server state + +**Benefits:** + +- Avoid re-fetching when switching between prompts in UI +- Enable offline viewing of previously loaded prompts +- Track which parameters were used for parameterized prompts + +### 3. ListChanged Notification Handlers + +**Implementation:** + +- Set up notification handlers in `connect()` method based on config +- Each handler: + 1. Calls the appropriate `list*()` method to reload the list + 2. Updates internal state + 3. Dispatches appropriate `*Change` event + +**Handlers needed:** + +- `notifications/tools/list_changed` → reload tools list +- `notifications/resources/list_changed` → reload resources list (preserve cached content for existing resources) +- `notifications/prompts/list_changed` → reload prompts list + +**Code structure:** + +```typescript +// In connect() method +if ( + this.listChangedNotifications?.tools !== false && + this.capabilities?.tools?.listChanged +) { + this.client.setNotificationHandler( + ToolListChangedNotificationSchema, + async () => { + await this.reloadToolsList(); + }, + ); +} + +if ( + this.listChangedNotifications?.resources !== false && + this.capabilities?.resources?.listChanged +) { + this.client.setNotificationHandler( + ResourceListChangedNotificationSchema, + async () => { + await this.reloadResourcesList(); // Preserves cached content + }, + ); +} +``` + +**Resource list reload behavior:** + +- When `notifications/resources/list_changed` is received, reload the resource descriptors list (`this.resources`) +- For each resource in the new list, check if we have cached content for that URI using `this.cache.getResource(uri)` +- Preserve cached content for resources that still exist in the updated list +- Remove cached content for resources that no longer exist in the list (cache cleanup via `this.cache.clearResource(uri)`) +- Note: Resource template cache is NOT affected by resource list changes - templates are cached separately and independently +- Note: Cache is independent - `client.cache.clearAll()` doesn't affect descriptors, and reloading descriptors doesn't clear template cache + +### 4. Resource Subscription Methods + +**Note:** Resource subscriptions are server capability-driven. The client checks if the server supports subscriptions (`capabilities.resources.subscribe === true`) and then the client can call subscribe/unsubscribe methods if desired. There is no client config option for this - it's purely based on server capability. + +**Public API:** + +```typescript +/** + * Subscribe to a resource to receive update notifications + * @param uri - The URI of the resource to subscribe to + * @throws Error if client is not connected or server doesn't support subscriptions + */ +async subscribeToResource(uri: string): Promise; + +/** + * Unsubscribe from a resource + * @param uri - The URI of the resource to unsubscribe from + * @throws Error if client is not connected + */ +async unsubscribeFromResource(uri: string): Promise; + +/** + * Get list of currently subscribed resource URIs + */ +getSubscribedResources(): string[]; + +/** + * Check if a resource is currently subscribed + */ +isSubscribedToResource(uri: string): boolean; + +/** + * Check if the server supports resource subscriptions + */ +supportsResourceSubscriptions(): boolean; +``` + +**Internal State:** + +- `private subscribedResources: Set = new Set()` + +**Implementation:** + +- Check server capability: `this.capabilities?.resources?.subscribe === true` +- Call `client.request({ method: "resources/subscribe", params: { uri } })` +- Call `client.request({ method: "resources/unsubscribe", params: { uri } })` +- Track subscriptions in `Set` +- Clear subscriptions on disconnect + +### 5. Resource Updated Notification Handler + +**Handler:** + +- Set up in `connect()` if server supports resource subscriptions (`capabilities.resources.subscribe === true`) +- Handle `notifications/resources/updated` notification + +**Behavior:** + +1. Check if the resource URI is in `this.subscribedResources` +2. If subscribed AND content is cached (checked via `client.cache.getResource(uri)` for regular resources): + - Reload the resource content via `readResource()` (which will fetch fresh and update `this.cache.resourceContentCache`) + - Dispatch `resourceContentChange` event with updated content +3. If subscribed but not cached: + - Optionally reload (or wait for user to view it) + - Dispatch `resourceUpdated` event (descriptor-only update) + +**Event:** + +```typescript +// New event type +interface ResourceContentChangeEvent extends CustomEvent { + detail: { + uri: string; + content: { + contents: Array<{ uri: string; mimeType?: string; text: string }>; + timestamp: Date; + }; + }; +} +``` + +### 6. Cache API Design + +**Design: Separate Cache Module with Read/Write and Read-Only Interfaces** + +The cache is implemented as a separate module with two interfaces: + +1. **ReadWriteContentCache** - Full access (used internally by InspectorClient) +2. **ReadOnlyContentCache** - Read-only access (exposed to users of InspectorClient) + +This design provides: + +- **Better encapsulation** - InspectorClient doesn't need to know about internal Map structures +- **Separation of concerns** - Cache logic is isolated in its own module +- **Type safety** - Clear distinction between internal and external cache access +- **Testability** - Cache can be tested independently +- **Future extensibility** - Cache can evolve without affecting InspectorClient internals + +**API Structure:** + +```typescript +// Cache object exposed as property +// Getter methods (read-only access to cached content) +client.cache.getResource(uri); +client.cache.getResourceTemplate(uriTemplate); +client.cache.getPrompt(name); +client.cache.getToolCallResult(toolName); + +// Clear methods (remove cached content) +client.cache.clearResource(uri); +client.cache.clearResourceTemplate(uriTemplate); +client.cache.clearPrompt(name); +client.cache.clearToolCallResult(toolName); +client.cache.clearAll(); + +// Fetch methods remain on InspectorClient (always fetch fresh, cache automatically) +// These methods automatically store results in the cache - no explicit setter methods needed +client.readResource(uri); // → stores in cache.resourceContentCache +client.readResourceFromTemplate(name, params); // → stores in cache.resourceTemplateContentCache +client.getPrompt(name, args); // → stores in cache.promptContentCache +client.callTool(name, args); // → stores in cache.toolCallResultCache +``` + +**Benefits:** + +- **Clear separation** - Cache operations are explicitly namespaced +- **Better organization** - All cache operations in one place +- **Easier to extend** - Can add cache configuration, statistics, policies to cache object +- **Type safety** - Cache object can have its own type/interface +- **Future features** - Cache object can have methods like `configure()`, `getStats()`, `setMaxSize()`, etc. +- **Clearer intent** - `client.cache.getResource()` makes it obvious this is cache access +- **Single integrated cache** - All cached content (resources, prompts, tool results) is managed by one cache object + +**Implementation:** + +```typescript +class InspectorClient { + // Server-provided descriptors + private resources: Resource[] = []; + private prompts: Prompt[] = []; + private tools: Tool[] = []; + + // Single integrated cache object + public readonly cache: ContentCache; + + constructor(...) { + // Create integrated cache object + this.cache = new ContentCache(); + } +} + +class ContentCache { + // Internal storage - all cached content managed by this single object + private resourceContentCache: Map = new Map(); // Keyed by URI + private resourceTemplateContentCache: Map = new Map(); // Keyed by uriTemplate + private promptContentCache: Map = new Map(); + private toolCallResultCache: Map = new Map(); + + getResource(uri: string): ResourceContentCache | null { + return this.resourceContentCache.get(uri) ?? null; + } + + getResourceTemplate(uriTemplate: string): ResourceTemplateContentCache | null { + // Look up by uriTemplate (the unique ID of the template) + return this.resourceTemplateContentCache.get(uriTemplate) ?? null; + } + + getPrompt(name: string): PromptContentCache | null { + return this.promptContentCache.get(name) ?? null; + } + + getToolCallResult(toolName: string): ToolCallResult | null { + return this.toolCallResultCache.get(toolName) ?? null; + } + + clearResource(uri: string): void { + this.resourceContentCache.delete(uri); + } + + clearPrompt(name: string): void { + this.promptContentCache.delete(name); + } + + clearToolCallResult(toolName: string): void { + this.toolCallResultCache.delete(toolName); + } + + clearAll(): void { + this.resourceContentCache.clear(); + this.promptContentCache.clear(); + this.toolCallResultCache.clear(); + } + + // Future: getStats(), configure(), etc. +} +``` + +**Cache Storage:** + +- Cache content is **automatically stored** when fetch methods are called: + - `readResource(uri)` → stores in `this.cache.resourceContentCache.set(uri, {...})` + - `readResourceFromTemplate(uriTemplate, params)` → stores in `this.cache.resourceTemplateContentCache.set(uriTemplate, {...})` + - `getPrompt(name, args)` → stores in `this.cache.promptContentCache.set(name, {...})` + - `callTool(name, args)` → stores in `this.cache.toolCallResultCache.set(name, {...})` +- There are **no explicit setter methods** on the cache object - content is set automatically by InspectorClient methods +- The cache object provides **read-only access** via getter methods and **clear methods** for cache management +- InspectorClient methods directly access the cache's internal maps to store content (the cache object owns the maps) + +**Usage Pattern:** + +```typescript +// Check cache first +const cached = client.cache.getResource(uri); +if (cached) { + // Use cached content +} else { + // Fetch fresh - automatically caches the result + const content = await client.readResource(uri); + // Content is now cached automatically (no need to call a setter) +} +``` + +### 7. Resource Content Management + +**Methods:** + +```typescript +/** + * Read a resource and cache its content + * @param uri - The URI of the resource to read + * @param metadata - Optional metadata to include in the request + * @returns The resource content + */ +async readResource( + uri: string, + metadata?: Record, +): Promise; + +/** + * Read a resource from a template by expanding the template URI with parameters + * This encapsulates the business logic of template expansion and associates the + * loaded resource with its template in InspectorClient state + * @param uriTemplate - The URI template string (unique identifier for the template) + * @param params - Parameters to fill in the template variables + * @param metadata - Optional metadata to include in the request + * @returns The resource content along with expanded URI and uriTemplate + * @throws Error if template is not found or URI expansion fails + */ +async readResourceFromTemplate( + uriTemplate: string, + params: Record, + metadata?: Record, +): Promise<{ + contents: Array<{ uri: string; mimeType?: string; text: string }>; + uri: string; // The expanded URI + uriTemplate: string; // The URI template for reference +}>; + +``` + +**Implementation:** + +- `readResource()`: + 1. Always fetch fresh content: Call `client.readResource(uri, metadata)` (SDK method) + 2. Store in cache using setter: `this.cache.setResource(uri, { contents, timestamp: new Date() })` + 3. Dispatch `resourceContentChange` event + 4. Return fresh content + +- `readResourceFromTemplate()`: + 1. Look up template in `resourceTemplates` by `uriTemplate` (the unique identifier) + 2. If not found, throw error + 3. Expand the template's `uriTemplate` using the provided params + - Use SDK's `UriTemplate` class: `new UriTemplate(uriTemplate).expand(params)` + 4. Always fetch fresh content: Call `this.readResource(expandedUri, metadata)` (InspectorClient method) + 5. Return response with expanded URI and uriTemplate (includes full response for backward compatibility) + 6. Note: Caching will be added in Phase 2 - for now, this method just encapsulates template expansion logic + +**Resource Matching Logic:** + +- **Regular resources** are cached by URI: `this.cache.resourceContentCache.set(uri, content)` +- **Resource templates** are cached by uriTemplate (the unique template ID): `this.cache.resourceTemplateContentCache.set(uriTemplate, content)` +- These are separate cache maps - no sharing between regular resources and template-based resources +- `client.cache.getResource(uri)` looks up in `resourceContentCache` by URI +- `client.cache.getResourceTemplate(uriTemplate)` looks up in `resourceTemplateContentCache` by uriTemplate (the unique template ID) +- If the same resource is loaded both ways (direct URI and via template), they are cached separately: + - Direct: `readResource("file:///test.txt")` → cached in `resourceContentCache` by URI + - Template: `readResourceFromTemplate("file", {path: "test.txt"})` → cached in `resourceTemplateContentCache` by uriTemplate + +**Benefits:** + +- Encapsulates template expansion logic in InspectorClient +- Allows InspectorClient to track which resources came from which templates +- Simplifies UI code - no need to manually expand templates +- Enables future features like template-based resource management + +- `client.cache.getResource(uri)` (ContentCache method): + - Accesses `this.resourceContentCache` map by URI + - Returns cached content if present, `null` if not cached + - Caller should check for `null` and call `client.readResource()` if fresh content is needed + +- `client.cache.getResourceTemplate(uriTemplate)` (ContentCache method): + - Looks up directly in `this.resourceTemplateContentCache` (owned by ContentCache) by uriTemplate + - Returns cached template content with params if found, `null` if not cached + - Note: Only one cached result per uriTemplate (most recent params combination replaces previous) + +### 7. Prompt Content Management + +**Methods:** + +```typescript +/** + * Get a prompt by name with optional arguments + * @param name - Prompt name + * @param args - Optional prompt arguments + * @param metadata - Optional metadata to include in the request + * @returns Prompt content + */ +async getPrompt( + name: string, + args?: Record, + metadata?: Record, +): Promise; + + +/** + * Clear cached content for a prompt + * @param name - The name of the prompt + */ +clearPromptContent(name: string): void; + +/** + * Clear all cached prompt content + */ +clearAllPromptContent(): void; +``` + +**Implementation:** + +- `getPrompt()`: + 1. Convert args to strings (using existing `convertPromptArguments()`) + 2. Always fetch fresh content: Call `client.getPrompt(name, stringArgs, metadata)` (SDK method) + 3. Store in cache using setter: `this.cache.setPrompt(name, { messages, timestamp: new Date(), params: stringArgs })` + 4. Dispatch `promptContentChange` event + 5. Return fresh content + +- `client.cache.getPrompt(name)` (ContentCache method): + - Accesses `this.promptContentCache` map (owned by ContentCache) by prompt name + - Returns cached content with stored `params` if present, `null` if not cached + - Returns the most recent params combination that was used (only one cached per prompt) + - Caller should check for `null` and call `client.getPrompt()` if fresh content is needed + +**Prompt Matching Logic:** + +- Prompts are matched by name only (one cached result per prompt) +- `client.cache.getPrompt(name)` returns the most recent content that was loaded for that prompt (with whatever params were used) +- If `getPrompt("weather", {city: "NYC"})` is called, then `getPrompt("weather", {city: "LA"})` is called: + - Both calls fetch fresh content + - The second call replaces the cached content (we cache only the most recent params combination per prompt) +- `client.cache.getPrompt("weather")` will return the content from the most recent call (with `params: {city: "LA"}`) + +**Note:** We cache only the most recent params combination per prompt. Each call to `getPrompt()` fetches fresh content and replaces the cache. + +### 8. Tool Call Result Management + +**Methods:** + +```typescript +/** + * Call a tool by name with arguments + * @param name - Tool name + * @param args - Tool arguments + * @param metadata - Optional metadata to include in the request + * @returns Tool call response + */ +async callTool( + name: string, + args: Record, + generalMetadata?: Record, + toolSpecificMetadata?: Record, +): Promise; + +// Cache access via client.cache object: +// client.cache.getToolCallResult(toolName) - Returns ToolCallResult | null +// client.cache.clearToolCallResult(toolName) - Clears cached result for a tool +// client.cache.clearAll() - Clears all cached content +``` + +**Implementation:** + +- `callTool()`: + 1. Call `client.callTool(name, args, metadata)` (existing implementation) + 2. On success: + - Store result using setter: `this.cacheInternal.setToolCallResult(name, { toolName: name, params: args, result, timestamp: new Date(), success: true })` + - Dispatch `toolCallResultChange` event + 3. On error: + - Store error result using setter: `this.cacheInternal.setToolCallResult(name, { toolName: name, params: args, result: {}, timestamp: new Date(), success: false, error: error.message })` + - Dispatch `toolCallResultChange` event + 4. Return result (existing behavior) + +- `client.cache.getToolCallResult(toolName)`: + - Look up in `toolCallResultCache` map by tool name + - Return cached result if present, `null` if not cached + - Caller should check for `null` and call `client.callTool()` if fresh result is needed + +**Tool Call Result Matching:** + +- Results are keyed by tool name only (one result per tool) +- Each new call to a tool replaces the previous cached result +- This matches typical UI patterns where users view one tool result at a time +- If needed, future enhancement could cache multiple param combinations per tool + +**Note:** Tool call results are cached automatically when `callTool()` is invoked. There's no separate "cache" step - the result is always stored after each call. + +### 9. Event Types + +**New Events:** + +- `resourceContentChange` - Fired when resource content is loaded or updated + - Detail: `{ uri: string, content: {...}, timestamp: Date }` +- `resourceUpdated` - Fired when a subscribed resource is updated (but not yet reloaded) + - Detail: `{ uri: string }` +- `resourceSubscriptionsChange` - Fired when subscription set changes + - Detail: `string[]` (array of subscribed URIs) +- `promptContentChange` - Fired when prompt content is loaded or updated + - Detail: `{ name: string, content: {...}, params?: Record, timestamp: Date }` +- `toolCallResultChange` - Fired when a tool call completes (success or failure) + - Detail: `{ toolName: string, params: Record, result: {...}, timestamp: Date, success: boolean, error?: string }` + +**Existing Events (enhanced):** + +- `toolsChange` - Already exists, will be fired on listChanged +- `resourcesChange` - Already exists, will be fired on listChanged (preserves cached content) +- `promptsChange` - Already exists, will be fired on listChanged (preserves cached content) + +## Implementation Plan + +### Phase 1: Configuration and Infrastructure + +1. Add `listChangedNotifications` options to `InspectorClientOptions` (tools, resources, prompts) +2. Add `subscribedResources: Set` to class state +3. Update constructor to initialize new options +4. Add helper methods: `getSubscribedResources()`, `isSubscribedToResource()`, `supportsResourceSubscriptions()` + +### Phase 2: Resource, Prompt, and Tool Call Result Caching + +1. Create new module `shared/mcp/contentCache.ts` +2. Define type interfaces: `ResourceContentCache`, `ResourceTemplateContentCache`, `PromptContentCache`, `ToolCallResult` +3. Define `ReadOnlyContentCache` interface (getters and clear methods) +4. Define `ReadWriteContentCache` interface (extends ReadOnlyContentCache, adds setters) +5. Implement `ContentCache` class that implements `ReadWriteContentCache` +6. Update `InspectorClient` to: + - Import `ContentCache` and `ReadOnlyContentCache` from `./contentCache` + - Create `private cache: ContentCache` instance (full access) + - Expose `public readonly cache: ReadOnlyContentCache` (read-only access) +7. Modify `readResource()` to use `this.cache.setResource()` after fetching +8. Add `readResourceFromTemplate()` helper method (expands template, reads resource, uses `this.cache.setResourceTemplate()`) +9. `getResources()` continues to return descriptors only (no changes needed) +10. Add `resourceContentChange` event +11. Modify `getPrompt()` to use `this.cacheInternal.setPrompt()` after fetching +12. `getPrompts()` continues to return descriptors only (no changes needed) +13. Add `promptContentChange` event +14. Modify `callTool()` to use `this.cacheInternal.setToolCallResult()` after each call +15. Add `toolCallResultChange` event + +### Phase 3: ListChanged Notifications + +1. Add `reloadToolsList()`, `reloadResourcesList()`, `reloadPromptsList()` helper methods +2. `reloadResourcesList()` should: + - Reload resource descriptors from server + - Preserve cached content in `resourceContentCache` for resources that still exist + - Remove cached content for resources that no longer exist (cache cleanup) +3. `reloadPromptsList()` should: + - Reload prompt descriptors from server + - Preserve cached content in `promptContentCache` for prompts that still exist + - Remove cached content for prompts that no longer exist (cache cleanup) +4. Set up notification handlers in `connect()` based on config +5. Test each handler independently + +### Phase 4: Resource Subscriptions + +1. Implement `subscribeToResource()` and `unsubscribeFromResource()` methods (check server capability) +2. Set up `notifications/resources/updated` handler (only if server supports subscriptions) +3. Implement auto-reload logic for subscribed resources (updates `resourceContentCache`) +4. Add `resourceSubscriptionsChange` event +5. Clear subscriptions and all cache maps (`resourceContentCache`, `promptContentCache`, `toolCallResultCache`) on disconnect + +### Phase 5: Testing + +1. Add tests for listChanged notifications (tools, resources, prompts) +2. Add tests for resource subscriptions (subscribe, unsubscribe, notifications) +3. Add tests for resource content caching (regular resources and template-based resources as separate types) +4. Add tests for prompt content caching (including params matching) +5. Add tests for tool call result caching (including success and error cases) +6. Add tests for resource updated notifications + +## Questions and Considerations + +### Q1: Should we auto-subscribe to resources when they're loaded? + +**Current thinking:** No, subscriptions should be explicit. User/UI decides when to subscribe. + +### Q2: Should we clear resource content on disconnect? + +**Decision:** Yes, clear all cached content and subscriptions on disconnect to avoid stale data. This matches the behavior of clearing other lists (tools, resources, prompts) on disconnect. + +### Q3: Should we support partial resource updates? + +**Current thinking:** For now, reload entire resource content. Future enhancement could support partial updates if the protocol supports it. + +### Q4: How should we handle resource content size limits? + +**Current thinking:** No limits initially. If needed, add `maxResourceContentSize` option later. + +### Q5: Should `readResource()` always fetch fresh content or use cache? + +**Decision:** Always fetch fresh content. Cache is for display convenience. UX should check `client.cache.getResource()` first, and only call `client.readResource()` if fresh content is needed. + +### Q7: Should we emit events for listChanged even if auto-reload fails? + +**Current thinking:** Yes, emit the event but log the error. This allows UI to show that a change occurred even if reload failed. + +### Q8: How should we handle multiple param combinations for the same prompt? + +**Decision:** Cache only the most recent params combination per prompt. If a prompt is called with different params, replace the cached content. This keeps the implementation simple and matches typical UI usage patterns where users view one prompt at a time. + +### Q7: Should we maintain subscription state across reconnects? + +**Decision:** No, clear on disconnect. User/UI can re-subscribe after reconnect if needed. + +## Open Questions + +1. **Resource content invalidation:** Should we have a TTL for cached content? Or rely on subscriptions/notifications? +2. **Batch operations:** Should we support subscribing/unsubscribing to multiple resources at once? +3. **Error handling:** How should we handle subscription failures? Retry? Queue for later? +4. **Resource templates:** Should resource template list changes trigger resource list reload? (Probably yes) +5. **Resource list changed behavior:** When resources list changes, should we preserve cached content for resources that still exist? **Decision:** Yes, preserve cached content for existing resources, only clear content for resources that no longer exist in the list. + +## Dependencies + +- SDK types for notification schemas: + - `ToolListChangedNotificationSchema` + - `ResourceListChangedNotificationSchema` + - `PromptListChangedNotificationSchema` + - `ResourceUpdatedNotificationSchema` +- SDK methods: + - `resources/subscribe` + - `resources/unsubscribe` + +## Backward Compatibility + +- Existing event types remain unchanged +- New functionality is opt-in via configuration (defaults to enabled) +- No breaking changes to existing API +- Resource subscriptions are capability-driven (no config needed - client checks server capability) +- Resource, prompt, and tool call result caching is transparent - existing code continues to work, caching is automatic diff --git a/docs/tui-web-client-feature-gaps.md b/docs/tui-web-client-feature-gaps.md index d8f63879b..39d97c456 100644 --- a/docs/tui-web-client-feature-gaps.md +++ b/docs/tui-web-client-feature-gaps.md @@ -17,15 +17,20 @@ This document details the feature gaps between the TUI (Terminal User Interface) | Read templated resources | ✅ | ✅ | ✅ | - | | Resource subscriptions | ❌ | ✅ | ❌ | Medium | | Resources listChanged notifications | ❌ | ✅ | ❌ | Medium | +| Pagination (resources) | ❌ | ✅ | ❌ | Low | +| Pagination (resource templates) | ❌ | ✅ | ❌ | Low | | **Prompts** | | List prompts | ✅ | ✅ | ✅ | - | | Get prompt (no params) | ✅ | ✅ | ✅ | - | | Get prompt (with params) | ✅ | ✅ | ✅ | - | | Prompts listChanged notifications | ❌ | ✅ | ❌ | Medium | +| Pagination (prompts) | ❌ | ✅ | ❌ | Low | | **Tools** | | List tools | ✅ | ✅ | ✅ | - | | Call tool | ✅ | ✅ | ✅ | - | | Tools listChanged notifications | ❌ | ✅ | ❌ | Medium | +| Tool call progress tracking | ❌ | ✅ | ❌ | Medium | +| Pagination (tools) | ❌ | ✅ | ❌ | Low | | **Roots** | | List roots | ✅ | ✅ | ❌ | Medium | | Set roots | ✅ | ✅ | ❌ | Medium | @@ -386,6 +391,144 @@ Custom headers are used to send additional HTTP headers when connecting to MCP s - `InspectorClient`: `shared/mcp/config.ts` (lines 118-129) - Headers in `MCPServerConfig` - `InspectorClient`: `shared/mcp/transport.ts` (lines 100-134) - Headers passed to SDK transports +### 9. Pagination Support + +**Use Case:** + +MCP servers can return large lists of items (tools, resources, resource templates, prompts) that need to be paginated. The MCP protocol uses cursor-based pagination where: + +- Clients can pass an optional `cursor` parameter to request the next page +- Servers return a `nextCursor` in the response if more results are available +- Clients can make multiple requests to fetch all items + +**Web Client Support:** + +- **Cursor Management**: Tracks `nextCursor` state for each list type: + - `nextResourceCursor` for resources + - `nextResourceTemplateCursor` for resource templates + - `nextPromptCursor` for prompts + - `nextToolCursor` for tools +- **Pagination Requests**: Passes `cursor` parameter in list requests: + - `listResources()`: `params: nextResourceCursor ? { cursor: nextResourceCursor } : {}` + - `listResourceTemplates()`: `params: nextResourceTemplateCursor ? { cursor: nextResourceTemplateCursor } : {}` + - `listPrompts()`: `params: nextPromptCursor ? { cursor: nextPromptCursor } : {}` + - `listTools()`: `params: nextToolCursor ? { cursor: nextToolCursor } : {}` +- **Accumulation**: Appends new results to existing arrays: `setResources(resources.concat(response.resources ?? []))` +- **Cursor Updates**: Updates cursor state after each request: `setNextResourceCursor(response.nextCursor)` + +**InspectorClient Status:** + +- ❌ `listResources()` - Returns `Resource[]` directly, doesn't expose `nextCursor` +- ❌ `listResourceTemplates()` - Returns `ResourceTemplate[]` directly, doesn't expose `nextCursor` +- ❌ `listPrompts()` - Returns `Prompt[]` directly, doesn't expose `nextCursor` +- ❌ `listTools()` - Returns `Tool[]` directly, doesn't expose `nextCursor` +- ❌ No cursor parameter support in list methods +- ❌ No pagination helper methods + +**TUI Status:** + +- ❌ No pagination support +- ❌ No cursor tracking +- ❌ No "Load More" UI or automatic pagination + +**Implementation Requirements:** + +- Add cursor parameter support to `InspectorClient` list methods: + - `listResources(cursor?, metadata?)` - Accept optional cursor, return `{ resources: Resource[], nextCursor?: string }` + - `listResourceTemplates(cursor?, metadata?)` - Accept optional cursor, return `{ resourceTemplates: ResourceTemplate[], nextCursor?: string }` + - `listPrompts(cursor?, metadata?)` - Accept optional cursor, return `{ prompts: Prompt[], nextCursor?: string }` + - `listTools(cursor?, metadata?)` - Accept optional cursor, return `{ tools: Tool[], nextCursor?: string }` +- Add pagination helper methods (optional): + - `listAllResources()` - Automatically fetches all pages + - `listAllResourceTemplates()` - Automatically fetches all pages + - `listAllPrompts()` - Automatically fetches all pages + - `listAllTools()` - Automatically fetches all pages +- Add UI in TUI for pagination: + - "Load More" buttons when `nextCursor` is present + - Or automatic pagination (fetch all pages on initial load) + - Display pagination status (e.g., "Showing 50 of 200 items") + +**Code References:** + +- Web client: `client/src/App.tsx` (lines 718-838) - Cursor state management and pagination requests +- SDK types: `ListResourcesResult`, `ListResourceTemplatesResult`, `ListPromptsResult`, `ListToolsResult` all extend `PaginatedResult` with `nextCursor?: Cursor` +- SDK types: `PaginatedRequestParams` includes `cursor?: Cursor` + +### 10. Tool Call Progress Tracking + +**Use Case:** + +Long-running tool calls can send progress notifications (`notifications/progress`) to keep clients informed of execution status. This is useful for: + +- Showing progress bars or status updates +- Resetting request timeouts on progress notifications +- Providing user feedback during long operations + +**Web Client Support:** + +- **Progress Token**: Generates and includes `progressToken` in tool call metadata: + ```typescript + const mergedMetadata = { + ...metadata, + progressToken: progressTokenRef.current++, + ...toolMetadata, + }; + ``` +- **Progress Callback**: Sets up `onprogress` callback in `useConnection`: + ```typescript + if (mcpRequestOptions.resetTimeoutOnProgress) { + mcpRequestOptions.onprogress = (params: Progress) => { + if (onNotification) { + onNotification({ + method: "notifications/progress", + params, + }); + } + }; + } + ``` +- **Progress Display**: Progress notifications are displayed in the "Server Notifications" window +- **Timeout Reset**: `resetTimeoutOnProgress` option resets request timeout when progress notifications are received + +**InspectorClient Status:** + +- ❌ No `progressToken` generation or management +- ❌ No `onprogress` callback support in `callTool()` +- ❌ No progress notification handling +- ❌ No timeout reset on progress + +**TUI Status:** + +- ❌ No progress tracking support +- ❌ No progress notification display +- ❌ No progress token management + +**Implementation Requirements:** + +- Add progress token generation to `InspectorClient`: + - Private counter for generating unique progress tokens + - Option to include `progressToken` in tool call metadata +- Add `onprogress` callback support to `callTool()`: + - Accept optional `onprogress` callback parameter + - Pass callback to SDK's `callTool()` via `RequestOptions` +- Add progress notification handling: + - Set up notification handler for `notifications/progress` + - Dispatch progress events for UI consumption +- Add timeout reset support: + - Option to reset timeout on progress notifications + - Pass `resetTimeoutOnProgress` to SDK request options +- Add UI in TUI for progress display: + - Show progress notifications during tool execution + - Display progress status in tool results view + - Optional: Progress bars or percentage indicators + +**Code References:** + +- Web client: `client/src/App.tsx` (lines 840-892) - Progress token generation and tool call +- Web client: `client/src/lib/hooks/useConnection.ts` (lines 214-226) - Progress callback setup +- SDK types: `RequestOptions` includes `onprogress?: (params: Progress) => void` and `resetTimeoutOnProgress?: boolean` +- SDK types: `Progress` notification type for progress updates + ## Implementation Priority ### High Priority (Core MCP Features) @@ -401,6 +544,8 @@ Custom headers are used to send additional HTTP headers when connecting to MCP s 6. **Custom Headers** - Useful for custom authentication schemes 7. **ListChanged Notifications** - Auto-refresh lists when server data changes 8. **Roots Support** - Manage file system access for servers +9. **Tool Call Progress Tracking** - User feedback during long-running operations +10. **Pagination Support** - Handle large lists efficiently ## InspectorClient Extensions Needed @@ -454,6 +599,20 @@ Based on this analysis, `InspectorClient` needs the following additions: - ✅ `roots: { listChanged: true }` capability declaration - Already exists (when `roots` option provided) - ❌ Integration into TUI for managing roots +8. **Pagination Support**: + - ❌ Cursor parameter support in `listResources()` - Needs to be added + - ❌ Cursor parameter support in `listResourceTemplates()` - Needs to be added + - ❌ Cursor parameter support in `listPrompts()` - Needs to be added + - ❌ Cursor parameter support in `listTools()` - Needs to be added + - ❌ Return `nextCursor` from list methods - Needs to be added + - ❌ Optional pagination helper methods (`listAll*()`) - Needs to be added + +9. **Tool Call Progress Tracking**: + - ❌ Progress token generation - Needs to be added + - ❌ `onprogress` callback support in `callTool()` - Needs to be added + - ❌ Progress notification handling - Needs to be added + - ❌ Timeout reset on progress - Needs to be added + ## Notes - **HTTP Request Tracking**: `InspectorClient` tracks HTTP requests for SSE and streamable-http transports via `getFetchRequests()`. TUI displays these requests in a `RequestsTab`. Web client does not currently display HTTP request tracking, though the underlying `InspectorClient` supports it. This is a TUI advantage, not a gap. @@ -464,6 +623,8 @@ Based on this analysis, `InspectorClient` needs the following additions: - **Elicitation**: `InspectorClient` has full elicitation support. Web client UI displays and handles elicitation requests. TUI needs UI to display and handle elicitation requests. - **ListChanged Notifications**: Web client handles `listChanged` notifications for tools, resources, and prompts, automatically refreshing lists when notifications are received. `InspectorClient` does not yet support these notifications. TUI also does not support them. - **Roots**: `InspectorClient` has full roots support with `getRoots()` and `setRoots()` methods, handler for `roots/list` requests, and notification support. Web client has a `RootsTab` UI for managing roots. TUI does not yet have UI for managing roots. +- **Pagination**: Web client supports cursor-based pagination for all list methods (tools, resources, resource templates, prompts), tracking `nextCursor` state and making multiple requests to fetch all items. `InspectorClient` currently returns arrays directly without exposing pagination. TUI does not support pagination. +- **Progress Tracking**: Web client supports progress tracking for tool calls by generating `progressToken` values, setting up `onprogress` callbacks, and displaying progress notifications. `InspectorClient` does not yet support progress tracking. TUI does not support progress tracking. ## Related Documentation diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index 8fb512716..0687a1c5b 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -542,9 +542,7 @@ describe("InspectorClient", () => { }); it("should list tools", async () => { - const result = await client.listTools(); - expect(result).toHaveProperty("tools"); - const tools = result.tools as any[]; + const tools = await client.listTools(); expect(Array.isArray(tools)).toBe(true); expect(tools.length).toBeGreaterThan(0); }); @@ -613,17 +611,15 @@ describe("InspectorClient", () => { }); it("should list resources", async () => { - const result = await client.listResources(); - expect(result).toHaveProperty("resources"); - expect(Array.isArray(result.resources)).toBe(true); + const resources = await client.listResources(); + expect(Array.isArray(resources)).toBe(true); }); it("should read resource", async () => { // First get list of resources - const listResult = await client.listResources(); - const resources = listResult.resources as any[]; - if (resources && resources.length > 0) { - const uri = resources[0].uri; + const resources = await client.listResources(); + if (resources.length > 0) { + const uri = resources[0]!.uri; const readResult = await client.readResource(uri); expect(readResult).toHaveProperty("contents"); } @@ -653,13 +649,11 @@ describe("InspectorClient", () => { }); it("should list resource templates", async () => { - const result = await client.listResourceTemplates(); - expect(result).toHaveProperty("resourceTemplates"); - const resourceTemplates = (result as any).resourceTemplates; + const resourceTemplates = await client.listResourceTemplates(); expect(Array.isArray(resourceTemplates)).toBe(true); expect(resourceTemplates.length).toBeGreaterThan(0); - const templates = resourceTemplates as any[]; + const templates = resourceTemplates; const fileTemplate = templates.find((t) => t.name === "file"); expect(fileTemplate).toBeDefined(); expect(fileTemplate?.uriTemplate).toBe("file:///{path}"); @@ -667,8 +661,7 @@ describe("InspectorClient", () => { it("should read resource from template", async () => { // First get the template - const listResult = await client.listResourceTemplates(); - const templates = (listResult as any).resourceTemplates as any[]; + const templates = await client.listResourceTemplates(); const fileTemplate = templates.find((t) => t.name === "file"); expect(fileTemplate).toBeDefined(); @@ -722,9 +715,7 @@ describe("InspectorClient", () => { await client.connect(); // Call listResources - this should include resources from the template's list callback - const result = await client.listResources(); - expect(result).toHaveProperty("resources"); - const resources = (result as any).resources as any[]; + const resources = await client.listResources(); expect(Array.isArray(resources)).toBe(true); // Verify that the resources from the list callback are included @@ -751,9 +742,8 @@ describe("InspectorClient", () => { }); it("should list prompts", async () => { - const result = await client.listPrompts(); - expect(result).toHaveProperty("prompts"); - expect(Array.isArray(result.prompts)).toBe(true); + const prompts = await client.listPrompts(); + expect(Array.isArray(prompts)).toBe(true); }); }); diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index 48f181e74..cd365e07d 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -26,10 +26,16 @@ import type { Implementation, LoggingLevel, Tool, + Resource, + ResourceTemplate, + Prompt, CreateMessageRequest, CreateMessageResult, ElicitRequest, ElicitResult, + ReadResourceResult, + GetPromptResult, + CallToolResult, } from "@modelcontextprotocol/sdk/types.js"; import { CreateMessageRequestSchema, @@ -43,6 +49,7 @@ import { convertToolParameters, convertPromptArguments, } from "../json/jsonUtils.js"; +import { UriTemplate } from "@modelcontextprotocol/sdk/shared/uriTemplate.js"; export interface InspectorClientOptions { /** * Client identity (name and version) @@ -224,10 +231,10 @@ export class InspectorClient extends EventTarget { private elicit: boolean; private status: ConnectionStatus = "disconnected"; // Server data - private tools: any[] = []; - private resources: any[] = []; - private resourceTemplates: any[] = []; - private prompts: any[] = []; + private tools: Tool[] = []; + private resources: Resource[] = []; + private resourceTemplates: ResourceTemplate[] = []; + private prompts: Prompt[] = []; private capabilities?: ServerCapabilities; private serverInfo?: Implementation; private instructions?: string; @@ -578,14 +585,14 @@ export class InspectorClient extends EventTarget { /** * Get all tools */ - getTools(): any[] { + getTools(): Tool[] { return [...this.tools]; } /** * Get all resources */ - getResources(): any[] { + getResources(): Resource[] { return [...this.resources]; } @@ -593,14 +600,14 @@ export class InspectorClient extends EventTarget { * Get resource templates * @returns Array of resource templates */ - getResourceTemplates(): any[] { + getResourceTemplates(): ResourceTemplate[] { return [...this.resourceTemplates]; } /** * Get all prompts */ - getPrompts(): any[] { + getPrompts(): Prompt[] { return [...this.prompts]; } @@ -713,11 +720,9 @@ export class InspectorClient extends EventTarget { /** * List available tools * @param metadata Optional metadata to include in the request - * @returns Response containing tools array + * @returns Array of tools */ - async listTools( - metadata?: Record, - ): Promise> { + async listTools(metadata?: Record): Promise { if (!this.client) { throw new Error("Client is not connected"); } @@ -725,7 +730,7 @@ export class InspectorClient extends EventTarget { const params = metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; const response = await this.client.listTools(params); - return response; + return response.tools || []; } catch (error) { throw new Error( `Failed to list tools: ${error instanceof Error ? error.message : String(error)}`, @@ -746,13 +751,12 @@ export class InspectorClient extends EventTarget { args: Record, generalMetadata?: Record, toolSpecificMetadata?: Record, - ): Promise> { + ): Promise { if (!this.client) { throw new Error("Client is not connected"); } try { - const toolsResponse = await this.listTools(generalMetadata); - const tools = (toolsResponse.tools as Tool[]) || []; + const tools = await this.listTools(generalMetadata); const tool = tools.find((t) => t.name === name); let convertedArgs: Record = args; @@ -791,7 +795,7 @@ export class InspectorClient extends EventTarget { ? mergedMetadata : undefined, }); - return response; + return response as CallToolResult; } catch (error) { throw new Error( `Failed to call tool ${name}: ${error instanceof Error ? error.message : String(error)}`, @@ -802,11 +806,9 @@ export class InspectorClient extends EventTarget { /** * List available resources * @param metadata Optional metadata to include in the request - * @returns Response containing resources array + * @returns Array of resources */ - async listResources( - metadata?: Record, - ): Promise> { + async listResources(metadata?: Record): Promise { if (!this.client) { throw new Error("Client is not connected"); } @@ -814,7 +816,7 @@ export class InspectorClient extends EventTarget { const params = metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; const response = await this.client.listResources(params); - return response; + return response.resources || []; } catch (error) { throw new Error( `Failed to list resources: ${error instanceof Error ? error.message : String(error)}`, @@ -831,7 +833,7 @@ export class InspectorClient extends EventTarget { async readResource( uri: string, metadata?: Record, - ): Promise> { + ): Promise { if (!this.client) { throw new Error("Client is not connected"); } @@ -849,14 +851,87 @@ export class InspectorClient extends EventTarget { } } + /** + * Read a resource from a template by expanding the template URI with parameters + * This encapsulates the business logic of template expansion and associates the + * loaded resource with its template in InspectorClient state + * @param templateName The name/ID of the resource template + * @param params Parameters to fill in the template variables + * @param metadata Optional metadata to include in the request + * @returns The resource content along with expanded URI and template name + * @throws Error if template is not found or URI expansion fails + */ + async readResourceFromTemplate( + uriTemplate: string, + params: Record, + metadata?: Record, + ): Promise<{ + contents: Array<{ uri: string; mimeType?: string; text: string }>; + uri: string; // The expanded URI + uriTemplate: string; // The uriTemplate for reference + }> { + if (!this.client) { + throw new Error("Client is not connected"); + } + + // Look up template in resourceTemplates by uriTemplate (the unique identifier) + const template = this.resourceTemplates.find( + (t) => t.uriTemplate === uriTemplate, + ); + + if (!template) { + throw new Error( + `Resource template with uriTemplate "${uriTemplate}" not found`, + ); + } + + if (!template.uriTemplate) { + throw new Error(`Resource template does not have a uriTemplate property`); + } + + // Get the uriTemplate string (the unique ID of the template) + const uriTemplateString = template.uriTemplate; + + // Expand the template's uriTemplate using the provided params + let expandedUri: string; + try { + const uriTemplate = new UriTemplate(uriTemplateString); + expandedUri = uriTemplate.expand(params); + } catch (error) { + throw new Error( + `Failed to expand URI template "${uriTemplate}": ${error instanceof Error ? error.message : String(error)}`, + ); + } + + // Always fetch fresh content: Call readResource with expanded URI + const response = await this.readResource(expandedUri, metadata); + + // Extract contents from response (response.contents is the standard format) + const contents = + (response.contents as Array<{ + uri: string; + mimeType?: string; + text: string; + }>) || []; + + // Return the response in the expected format + // Include the full response for backward compatibility, plus the expanded URI and uriTemplate + return { + ...response, + contents, + uri: expandedUri, + uriTemplate, + }; + } + /** * List resource templates * @param metadata Optional metadata to include in the request - * @returns Response containing resource templates array + * @returns Array of resource templates */ async listResourceTemplates( metadata?: Record, - ): Promise> { + ): Promise { if (!this.client) { throw new Error("Client is not connected"); } @@ -864,7 +939,7 @@ export class InspectorClient extends EventTarget { const params = metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; const response = await this.client.listResourceTemplates(params); - return response; + return response.resourceTemplates || []; } catch (error) { throw new Error( `Failed to list resource templates: ${error instanceof Error ? error.message : String(error)}`, @@ -875,11 +950,9 @@ export class InspectorClient extends EventTarget { /** * List available prompts * @param metadata Optional metadata to include in the request - * @returns Response containing prompts array + * @returns Array of prompts */ - async listPrompts( - metadata?: Record, - ): Promise> { + async listPrompts(metadata?: Record): Promise { if (!this.client) { throw new Error("Client is not connected"); } @@ -887,7 +960,7 @@ export class InspectorClient extends EventTarget { const params = metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; const response = await this.client.listPrompts(params); - return response; + return response.prompts || []; } catch (error) { throw new Error( `Failed to list prompts: ${error instanceof Error ? error.message : String(error)}`, @@ -906,7 +979,7 @@ export class InspectorClient extends EventTarget { name: string, args?: Record, metadata?: Record, - ): Promise> { + ): Promise { if (!this.client) { throw new Error("Client is not connected"); } @@ -1047,8 +1120,7 @@ export class InspectorClient extends EventTarget { // Query resources, prompts, and tools based on capabilities if (this.capabilities?.resources) { try { - const result = await this.client.listResources(); - this.resources = result.resources || []; + this.resources = await this.listResources(); this.dispatchEvent( new CustomEvent("resourcesChange", { detail: this.resources }), ); @@ -1062,8 +1134,7 @@ export class InspectorClient extends EventTarget { // Also fetch resource templates try { - const templatesResult = await this.client.listResourceTemplates(); - this.resourceTemplates = templatesResult.resourceTemplates || []; + this.resourceTemplates = await this.listResourceTemplates(); this.dispatchEvent( new CustomEvent("resourceTemplatesChange", { detail: this.resourceTemplates, @@ -1082,8 +1153,7 @@ export class InspectorClient extends EventTarget { if (this.capabilities?.prompts) { try { - const result = await this.client.listPrompts(); - this.prompts = result.prompts || []; + this.prompts = await this.listPrompts(); this.dispatchEvent( new CustomEvent("promptsChange", { detail: this.prompts }), ); @@ -1098,8 +1168,7 @@ export class InspectorClient extends EventTarget { if (this.capabilities?.tools) { try { - const result = await this.client.listTools(); - this.tools = result.tools || []; + this.tools = await this.listTools(); this.dispatchEvent( new CustomEvent("toolsChange", { detail: this.tools }), ); diff --git a/tui/src/components/ResourceTestModal.tsx b/tui/src/components/ResourceTestModal.tsx index b5631cfd8..8e5ccc61b 100644 --- a/tui/src/components/ResourceTestModal.tsx +++ b/tui/src/components/ResourceTestModal.tsx @@ -3,7 +3,6 @@ import { Box, Text, useInput, type Key } from "ink"; import { Form } from "ink-form"; import { InspectorClient } from "@modelcontextprotocol/inspector-shared/mcp/index.js"; import { uriTemplateToForm } from "../utils/uriTemplateToForm.js"; -import { UriTemplate } from "@modelcontextprotocol/sdk/shared/uriTemplate.js"; import { ScrollView, type ScrollViewRef } from "ink-scroll-view"; // Helper to extract error message from various error types @@ -134,12 +133,11 @@ export function ResourceTestModal({ const startTime = Date.now(); try { - // Expand the URI template with the provided values - const uriTemplate = new UriTemplate(template.uriTemplate); - const uri = uriTemplate.expand(values); - - // Read the resource using the expanded URI - const response = await inspectorClient.readResource(uri); + // Use InspectorClient's readResourceFromTemplate method which encapsulates template expansion and resource reading + const response = await inspectorClient.readResourceFromTemplate( + template.uriTemplate, + values, + ); const duration = Date.now() - startTime; @@ -147,20 +145,18 @@ export function ResourceTestModal({ input: values, output: response, duration, - uri, + uri: response.uri, }); setState("results"); } catch (error) { const duration = Date.now() - startTime; const errorMessage = getErrorMessage(error); - // Try to expand URI even on error for display + // Try to get expanded URI from error if available, otherwise use template let uri = template.uriTemplate; - try { - const uriTemplate = new UriTemplate(template.uriTemplate); - uri = uriTemplate.expand(values); - } catch { - // If expansion fails, use original template + // If the error response contains uri, use it + if (error && typeof error === "object" && "uri" in error) { + uri = (error as any).uri; } // Extract detailed error information From 65364bd42bfe7f69aa661b0aacf22bb2c01cdb06 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Fri, 23 Jan 2026 14:04:59 -0800 Subject: [PATCH 33/44] Refactor InspectorClient to return invocation objects for tool calls, resource reads, and prompts, encapsulating results, metadata, and success/error states. Update related tests and documentation to reflect these changes. --- cli/src/index.ts | 29 +- ...source-subscriptions-listchanged-design.md | 592 ++++++++++++++---- shared/__tests__/inspectorClient.test.ts | 66 +- shared/mcp/index.ts | 5 + shared/mcp/inspectorClient.ts | 121 ++-- shared/mcp/types.ts | 61 ++ tui/src/components/PromptTestModal.tsx | 4 +- tui/src/components/PromptsTab.tsx | 4 +- tui/src/components/ResourceTestModal.tsx | 6 +- tui/src/components/ResourcesTab.tsx | 4 +- tui/src/components/ToolTestModal.tsx | 42 +- 11 files changed, 730 insertions(+), 204 deletions(-) diff --git a/cli/src/index.ts b/cli/src/index.ts index 857f20fc8..1919f0963 100644 --- a/cli/src/index.ts +++ b/cli/src/index.ts @@ -191,12 +191,28 @@ async function callMethod(args: Args): Promise { ); } - result = await inspectorClient.callTool( + const invocation = await inspectorClient.callTool( args.toolName, args.toolArg || {}, args.metadata, args.toolMeta, ); + // Extract the result from the invocation object for CLI compatibility + if (invocation.result !== null) { + // Success case: result is a valid CallToolResult + result = invocation.result; + } else { + // Error case: construct an error response matching CallToolResult structure + result = { + content: [ + { + type: "text" as const, + text: invocation.error || "Tool call failed", + }, + ], + isError: true, + }; + } } // Resources methods else if (args.method === "resources/list") { @@ -210,7 +226,12 @@ async function callMethod(args: Args): Promise { ); } - result = await inspectorClient.readResource(args.uri, args.metadata); + const invocation = await inspectorClient.readResource( + args.uri, + args.metadata, + ); + // Extract the result from the invocation object for CLI compatibility + result = invocation.result; } else if (args.method === "resources/templates/list") { result = { resourceTemplates: await inspectorClient.listResourceTemplates( @@ -228,11 +249,13 @@ async function callMethod(args: Args): Promise { ); } - result = await inspectorClient.getPrompt( + const invocation = await inspectorClient.getPrompt( args.promptName, args.promptArgs || {}, args.metadata, ); + // Extract the result from the invocation object for CLI compatibility + result = invocation.result; } // Logging methods else if (args.method === "logging/setLevel") { diff --git a/docs/resource-subscriptions-listchanged-design.md b/docs/resource-subscriptions-listchanged-design.md index 3149c7407..1af7002d4 100644 --- a/docs/resource-subscriptions-listchanged-design.md +++ b/docs/resource-subscriptions-listchanged-design.md @@ -62,26 +62,61 @@ export interface InspectorClientOptions { - Maintain `resources: Resource[]` for server-provided descriptors - Add separate cache structure for loaded content -**Cache Structures:** +**Invocation Types (defined in `shared/mcp/types.ts`, returned from methods and cached):** ```typescript // For regular resources (cached by URI) -interface ResourceContentCache { - contents: Array<{ uri: string; mimeType?: string; text: string }>; - timestamp: Date; // When content was loaded +interface ResourceReadInvocation { + result: ReadResourceResult; // The full SDK response object + timestamp: Date; // When the call was made + uri: string; // The URI that was read (request parameter) + metadata?: Record; // Optional metadata that was passed } // For resource templates (cached by uriTemplate - the unique ID of the template) -interface ResourceTemplateContentCache { +interface ResourceTemplateReadInvocation { uriTemplate: string; // The URI template string (unique ID) - expandedUri: string; // The expanded URI - contents: Array<{ uri: string; mimeType?: string; text: string }>; - timestamp: Date; // When content was loaded - templateName: string; // The name/ID of the template - params: Record; // The parameters used to expand the template + expandedUri: string; // The expanded URI after template expansion + result: ReadResourceResult; // The full SDK response object + timestamp: Date; // When the call was made + params: Record; // The parameters used to expand the template (request parameters) + metadata?: Record; // Optional metadata that was passed +} + +// For prompts (cached by prompt name) +interface PromptGetInvocation { + result: GetPromptResult; // The full SDK response object + timestamp: Date; // When the call was made + name: string; // The prompt name (request parameter) + params?: Record; // The parameters used when fetching the prompt (request parameters) + metadata?: Record; // Optional metadata that was passed +} + +// For tool calls (cached by tool name) +interface ToolCallInvocation { + toolName: string; // The tool that was called (request parameter) + params: Record; // The arguments passed to the tool (request parameters) + result: CallToolResult | null; // The full SDK response object (null on error) + timestamp: Date; // When the call was made + success: boolean; // true if call succeeded, false if it threw + error?: string; // Error message if success === false + metadata?: Record; // Optional metadata that was passed } ``` +**Rationale:** + +- **Invocation objects** represent the complete call: request parameters + response + metadata +- These objects are **returned from InspectorClient methods** (e.g., `readResource()` returns `ResourceReadInvocation`) +- The **same object** is stored in the cache and returned from cache getters +- Keep SDK response objects intact (`ReadResourceResult`, `GetPromptResult`, `CallToolResult`) rather than breaking them apart +- Add our metadata fields (`timestamp`, request params, `uriTemplate`, `expandedUri`, `success`, `error`) alongside the SDK result +- Preserves all SDK fields and makes it easier to maintain if SDK types change +- Clear separation between SDK data and our cache metadata +- For tool calls, `result` is `null` on error to distinguish from successful calls with empty results +- **Consistency**: The object returned from `client.readResource(uri)` is the same object you'd get from `client.cache.getResource(uri)` (if cached) +- **Type Location**: These types are defined in `shared/mcp/types.ts` since they're shared between `InspectorClient` and `ContentCache` (following the established pattern where shared MCP types live in `types.ts`) + **Storage:** - `private resources: Resource[]` - Server-provided resource descriptors (unchanged) @@ -124,13 +159,21 @@ interface ResourceTemplateContentCache { **Cache Structure:** ```typescript -interface PromptContentCache { - messages: Array<{ role: string; content: any }>; - timestamp: Date; // When content was loaded - params?: Record; // The parameters used when fetching the prompt +interface PromptGetInvocation { + result: GetPromptResult; // The full SDK response object + timestamp: Date; // When the call was made + name: string; // The prompt name (request parameter) + params?: Record; // The parameters used when fetching the prompt (request parameters) + metadata?: Record; // Optional metadata that was passed } ``` +**Rationale:** + +- Keep SDK response object intact (`GetPromptResult`) rather than extracting `messages` +- Add our metadata fields (`timestamp`, `params`) alongside the SDK result +- Preserves all SDK fields including optional `description` and `_meta` + **Storage:** - `private prompts: Prompt[]` - Server-provided prompt descriptors (unchanged) @@ -157,7 +200,7 @@ interface PromptContentCache { **Handlers needed:** - `notifications/tools/list_changed` → reload tools list -- `notifications/resources/list_changed` → reload resources list (preserve cached content for existing resources) +- `notifications/resources/list_changed` → reload resources list and resource templates list (preserve cached content for existing items) - `notifications/prompts/list_changed` → reload prompts list **Code structure:** @@ -351,25 +394,25 @@ class InspectorClient { class ContentCache { // Internal storage - all cached content managed by this single object - private resourceContentCache: Map = new Map(); // Keyed by URI - private resourceTemplateContentCache: Map = new Map(); // Keyed by uriTemplate - private promptContentCache: Map = new Map(); - private toolCallResultCache: Map = new Map(); + private resourceContentCache: Map = new Map(); // Keyed by URI + private resourceTemplateContentCache: Map = new Map(); // Keyed by uriTemplate + private promptContentCache: Map = new Map(); + private toolCallResultCache: Map = new Map(); - getResource(uri: string): ResourceContentCache | null { + getResource(uri: string): ResourceReadInvocation | null { return this.resourceContentCache.get(uri) ?? null; } - getResourceTemplate(uriTemplate: string): ResourceTemplateContentCache | null { + getResourceTemplate(uriTemplate: string): ResourceTemplateReadInvocation | null { // Look up by uriTemplate (the unique ID of the template) return this.resourceTemplateContentCache.get(uriTemplate) ?? null; } - getPrompt(name: string): PromptContentCache | null { + getPrompt(name: string): PromptGetInvocation | null { return this.promptContentCache.get(name) ?? null; } - getToolCallResult(toolName: string): ToolCallResult | null { + getToolCallResult(toolName: string): ToolCallInvocation | null { return this.toolCallResultCache.get(toolName) ?? null; } @@ -412,11 +455,15 @@ class ContentCache { // Check cache first const cached = client.cache.getResource(uri); if (cached) { - // Use cached content + // Use cached content - cached is a ResourceReadInvocation + // Access content via cached.result.contents + // Same object that would be returned from readResource() } else { // Fetch fresh - automatically caches the result - const content = await client.readResource(uri); - // Content is now cached automatically (no need to call a setter) + const invocation = await client.readResource(uri); + // invocation is a ResourceReadInvocation (same object now in cache) + // Access content via invocation.result.contents + // client.cache.getResource(uri) would now return the same invocation object } ``` @@ -429,12 +476,12 @@ if (cached) { * Read a resource and cache its content * @param uri - The URI of the resource to read * @param metadata - Optional metadata to include in the request - * @returns The resource content + * @returns Resource read invocation (includes result, timestamp, request params) */ async readResource( uri: string, metadata?: Record, -): Promise; +): Promise; /** * Read a resource from a template by expanding the template URI with parameters @@ -450,30 +497,31 @@ async readResourceFromTemplate( uriTemplate: string, params: Record, metadata?: Record, -): Promise<{ - contents: Array<{ uri: string; mimeType?: string; text: string }>; - uri: string; // The expanded URI - uriTemplate: string; // The URI template for reference -}>; +): Promise; ``` **Implementation:** - `readResource()`: - 1. Always fetch fresh content: Call `client.readResource(uri, metadata)` (SDK method) - 2. Store in cache using setter: `this.cache.setResource(uri, { contents, timestamp: new Date() })` - 3. Dispatch `resourceContentChange` event - 4. Return fresh content + 1. Always fetch fresh content: Call `client.readResource(uri, metadata)` (SDK method) → returns `ReadResourceResult` + 2. Create invocation object: `const invocation: ResourceReadInvocation = { result, timestamp: new Date(), uri, metadata }` + 3. Store in cache: `this.cacheInternal.setResource(uri, invocation)` + 4. Dispatch `resourceContentChange` event + 5. Return the invocation object (same object that's in the cache) - `readResourceFromTemplate()`: 1. Look up template in `resourceTemplates` by `uriTemplate` (the unique identifier) 2. If not found, throw error 3. Expand the template's `uriTemplate` using the provided params - Use SDK's `UriTemplate` class: `new UriTemplate(uriTemplate).expand(params)` - 4. Always fetch fresh content: Call `this.readResource(expandedUri, metadata)` (InspectorClient method) - 5. Return response with expanded URI and uriTemplate (includes full response for backward compatibility) - 6. Note: Caching will be added in Phase 2 - for now, this method just encapsulates template expansion logic + 4. Always fetch fresh content: Call `this.readResource(expandedUri, metadata)` (InspectorClient method) → returns `ResourceReadInvocation` + 5. Create invocation object: `const invocation: ResourceTemplateReadInvocation = { uriTemplate, expandedUri, result: readInvocation.result, timestamp: readInvocation.timestamp, params, metadata }` + 6. Store in cache: `this.cacheInternal.setResourceTemplate(uriTemplate, invocation)` (TODO: add in Phase 3) + 7. Dispatch `resourceTemplateContentChange` event (TODO: add in Phase 3) + 8. Return the invocation object (same object that's in the cache) + + **Note:** ✅ Steps 1-5 and 8 are already implemented. Steps 6 and 7 will be added in Phase 3 when the cache is integrated. **Resource Matching Logic:** @@ -495,13 +543,18 @@ async readResourceFromTemplate( - `client.cache.getResource(uri)` (ContentCache method): - Accesses `this.resourceContentCache` map by URI - - Returns cached content if present, `null` if not cached + - Returns cached `ResourceReadInvocation` object (same type as returned from `readResource()`), `null` if not cached - Caller should check for `null` and call `client.readResource()` if fresh content is needed + - Access resource contents via `cached.result.contents` + - **Note**: The returned object is the same object that was returned from `readResource()` (object identity preserved) - `client.cache.getResourceTemplate(uriTemplate)` (ContentCache method): - Looks up directly in `this.resourceTemplateContentCache` (owned by ContentCache) by uriTemplate + - Returns cached `ResourceTemplateReadInvocation` object (same type as returned from `readResourceFromTemplate()`), `null` if not cached + - Access resource contents via `cached.result.contents` - Returns cached template content with params if found, `null` if not cached - Note: Only one cached result per uriTemplate (most recent params combination replaces previous) + - **Note**: The returned object is the same object that was returned from `readResourceFromTemplate()` (object identity preserved) ### 7. Prompt Content Management @@ -513,13 +566,13 @@ async readResourceFromTemplate( * @param name - Prompt name * @param args - Optional prompt arguments * @param metadata - Optional metadata to include in the request - * @returns Prompt content + * @returns Prompt get invocation (includes result, timestamp, request params) */ async getPrompt( name: string, args?: Record, metadata?: Record, -): Promise; +): Promise; /** @@ -538,16 +591,21 @@ clearAllPromptContent(): void; - `getPrompt()`: 1. Convert args to strings (using existing `convertPromptArguments()`) - 2. Always fetch fresh content: Call `client.getPrompt(name, stringArgs, metadata)` (SDK method) - 3. Store in cache using setter: `this.cache.setPrompt(name, { messages, timestamp: new Date(), params: stringArgs })` - 4. Dispatch `promptContentChange` event - 5. Return fresh content + 2. Always fetch fresh content: Call `client.getPrompt(name, stringArgs, metadata)` (SDK method) → returns `GetPromptResult` + 3. Create invocation object: `const invocation: PromptGetInvocation = { result, timestamp: new Date(), name, params: stringArgs, metadata }` + 4. Store in cache: `this.cacheInternal.setPrompt(name, invocation)` (TODO: add in Phase 3) + 5. Dispatch `promptContentChange` event (TODO: add in Phase 3) + 6. Return the invocation object (same object that's in the cache) + + **Note:** ✅ Steps 1-3 and 6 are already implemented. Steps 4 and 5 will be added in Phase 3 when the cache is integrated. This method now returns `PromptGetInvocation` instead of `GetPromptResult`. Access the SDK result via `invocation.result`. - `client.cache.getPrompt(name)` (ContentCache method): - Accesses `this.promptContentCache` map (owned by ContentCache) by prompt name - - Returns cached content with stored `params` if present, `null` if not cached + - Returns cached `PromptGetInvocation` object (same type as returned from `getPrompt()`), `null` if not cached - Returns the most recent params combination that was used (only one cached per prompt) - Caller should check for `null` and call `client.getPrompt()` if fresh content is needed + - Access prompt messages via `cached.result.messages`, description via `cached.result.description` + - **Note**: The returned object is the same object that was returned from `getPrompt()` (object identity preserved) **Prompt Matching Logic:** @@ -570,17 +628,17 @@ clearAllPromptContent(): void; * @param name - Tool name * @param args - Tool arguments * @param metadata - Optional metadata to include in the request - * @returns Tool call response + * @returns Tool call invocation (includes result, timestamp, request params, success/error) */ async callTool( name: string, args: Record, generalMetadata?: Record, toolSpecificMetadata?: Record, -): Promise; +): Promise; // Cache access via client.cache object: -// client.cache.getToolCallResult(toolName) - Returns ToolCallResult | null +// client.cache.getToolCallResult(toolName) - Returns ToolCallInvocation | null (same object as returned from callTool()) // client.cache.clearToolCallResult(toolName) - Clears cached result for a tool // client.cache.clearAll() - Clears all cached content ``` @@ -588,19 +646,24 @@ async callTool( **Implementation:** - `callTool()`: - 1. Call `client.callTool(name, args, metadata)` (existing implementation) + 1. Call `client.callTool(name, args, metadata)` (SDK method) → returns `CallToolResult` on success, throws on error 2. On success: - - Store result using setter: `this.cacheInternal.setToolCallResult(name, { toolName: name, params: args, result, timestamp: new Date(), success: true })` + - Create invocation object: `const invocation: ToolCallInvocation = { toolName: name, params: args, result, timestamp: new Date(), success: true, metadata }` + - Store in cache: `this.cacheInternal.setToolCallResult(name, invocation)` - Dispatch `toolCallResultChange` event + - Return the invocation object (same object that's in the cache) 3. On error: - - Store error result using setter: `this.cacheInternal.setToolCallResult(name, { toolName: name, params: args, result: {}, timestamp: new Date(), success: false, error: error.message })` + - Create invocation object: `const invocation: ToolCallInvocation = { toolName: name, params: args, result: null, timestamp: new Date(), success: false, error: error.message, metadata }` + - Store in cache: `this.cacheInternal.setToolCallResult(name, invocation)` - Dispatch `toolCallResultChange` event - 4. Return result (existing behavior) + - Return the invocation object (same object that's in the cache) - `client.cache.getToolCallResult(toolName)`: - Look up in `toolCallResultCache` map by tool name - - Return cached result if present, `null` if not cached + - Return cached `ToolCallInvocation` object (same type as returned from `callTool()`), `null` if not cached - Caller should check for `null` and call `client.callTool()` if fresh result is needed + - Access tool result content via `cached.result?.content` (if `success === true`) + - **Note**: The returned object is the same object that was returned from `callTool()` (object identity preserved) **Tool Call Result Matching:** @@ -615,8 +678,10 @@ async callTool( **New Events:** -- `resourceContentChange` - Fired when resource content is loaded or updated +- `resourceContentChange` - Fired when regular resource content is loaded or updated - Detail: `{ uri: string, content: {...}, timestamp: Date }` +- `resourceTemplateContentChange` - Fired when resource template content is loaded or updated + - Detail: `{ uriTemplate: string, expandedUri: string, content: {...}, params: Record, timestamp: Date }` - `resourceUpdated` - Fired when a subscribed resource is updated (but not yet reloaded) - Detail: `{ uri: string }` - `resourceSubscriptionsChange` - Fired when subscription set changes @@ -634,64 +699,361 @@ async callTool( ## Implementation Plan -### Phase 1: Configuration and Infrastructure - -1. Add `listChangedNotifications` options to `InspectorClientOptions` (tools, resources, prompts) -2. Add `subscribedResources: Set` to class state -3. Update constructor to initialize new options -4. Add helper methods: `getSubscribedResources()`, `isSubscribedToResource()`, `supportsResourceSubscriptions()` - -### Phase 2: Resource, Prompt, and Tool Call Result Caching - -1. Create new module `shared/mcp/contentCache.ts` -2. Define type interfaces: `ResourceContentCache`, `ResourceTemplateContentCache`, `PromptContentCache`, `ToolCallResult` -3. Define `ReadOnlyContentCache` interface (getters and clear methods) -4. Define `ReadWriteContentCache` interface (extends ReadOnlyContentCache, adds setters) -5. Implement `ContentCache` class that implements `ReadWriteContentCache` -6. Update `InspectorClient` to: - - Import `ContentCache` and `ReadOnlyContentCache` from `./contentCache` - - Create `private cache: ContentCache` instance (full access) - - Expose `public readonly cache: ReadOnlyContentCache` (read-only access) -7. Modify `readResource()` to use `this.cache.setResource()` after fetching -8. Add `readResourceFromTemplate()` helper method (expands template, reads resource, uses `this.cache.setResourceTemplate()`) -9. `getResources()` continues to return descriptors only (no changes needed) -10. Add `resourceContentChange` event -11. Modify `getPrompt()` to use `this.cacheInternal.setPrompt()` after fetching -12. `getPrompts()` continues to return descriptors only (no changes needed) -13. Add `promptContentChange` event -14. Modify `callTool()` to use `this.cacheInternal.setToolCallResult()` after each call -15. Add `toolCallResultChange` event - -### Phase 3: ListChanged Notifications - -1. Add `reloadToolsList()`, `reloadResourcesList()`, `reloadPromptsList()` helper methods -2. `reloadResourcesList()` should: - - Reload resource descriptors from server - - Preserve cached content in `resourceContentCache` for resources that still exist - - Remove cached content for resources that no longer exist (cache cleanup) -3. `reloadPromptsList()` should: - - Reload prompt descriptors from server - - Preserve cached content in `promptContentCache` for prompts that still exist - - Remove cached content for prompts that no longer exist (cache cleanup) -4. Set up notification handlers in `connect()` based on config -5. Test each handler independently - -### Phase 4: Resource Subscriptions - -1. Implement `subscribeToResource()` and `unsubscribeFromResource()` methods (check server capability) -2. Set up `notifications/resources/updated` handler (only if server supports subscriptions) -3. Implement auto-reload logic for subscribed resources (updates `resourceContentCache`) -4. Add `resourceSubscriptionsChange` event -5. Clear subscriptions and all cache maps (`resourceContentCache`, `promptContentCache`, `toolCallResultCache`) on disconnect - -### Phase 5: Testing - -1. Add tests for listChanged notifications (tools, resources, prompts) -2. Add tests for resource subscriptions (subscribe, unsubscribe, notifications) -3. Add tests for resource content caching (regular resources and template-based resources as separate types) -4. Add tests for prompt content caching (including params matching) -5. Add tests for tool call result caching (including success and error cases) -6. Add tests for resource updated notifications +### Phase 1: ContentCache Module (Standalone) + +**Goal:** Create and test the ContentCache module independently before integration. + +**Deliverables:** + +1. ✅ **COMPLETED** - Invocation type interfaces defined in `shared/mcp/types.ts`: + - `ResourceReadInvocation` - wraps `ReadResourceResult` with `uri`, `timestamp`, `metadata` + - `ResourceTemplateReadInvocation` - wraps `ReadResourceResult` with `uriTemplate`, `expandedUri`, `params`, `timestamp`, `metadata` + - `PromptGetInvocation` - wraps `GetPromptResult` with `name`, `params`, `timestamp`, `metadata` + - `ToolCallInvocation` - wraps `CallToolResult` (or `null` on error) with `toolName`, `params`, `success`, `error`, `timestamp`, `metadata` + - ✅ **COMPLETED** - `InspectorClient` methods now return invocation types: + - `readResource()` → `Promise` + - `readResourceFromTemplate()` → `Promise` + - `getPrompt()` → `Promise` + - `callTool()` → `Promise` + - ✅ **COMPLETED** - Types exported from `shared/mcp/index.ts` + - ✅ **COMPLETED** - Tests updated to handle invocation types + - ✅ **COMPLETED** - CLI updated to extract `.result` from invocation objects +2. Create new module `shared/mcp/contentCache.ts` +3. Import invocation types from `./types.js` in `contentCache.ts` +4. Define `ReadOnlyContentCache` interface (getters and clear methods) +5. Define `ReadWriteContentCache` interface (extends ReadOnlyContentCache, adds setters) +6. Implement `ContentCache` class that implements `ReadWriteContentCache`: + - Internal Maps for each cache type + - Getter methods (return `null` if not cached) + - Clear methods (individual and `clearAll()`) + - Setter methods (for internal use) + +**Testing:** + +- Unit tests for ContentCache class in `shared/__tests__/contentCache.test.ts` +- Test get/set/clear operations for each cache type +- Test that ReadOnlyContentCache interface prevents setter access +- Test edge cases (clearing non-existent entries, multiple operations) + +**Acceptance Criteria:** + +- ✅ Invocation types are defined in `shared/mcp/types.ts` and exported +- ✅ `InspectorClient` methods return invocation types +- ✅ Tests updated to handle invocation types +- ✅ CLI updated to extract results from invocation objects +- ContentCache can be instantiated +- All getter methods return `null` for non-existent entries +- All setter methods store entries correctly +- Clear methods work for individual entries and all entries +- Type safety is maintained (no `any` types) +- All tests pass + +**Rationale:** Testing the cache module standalone ensures it works correctly before integrating it into InspectorClient, making debugging easier and reducing risk. + +**Note:** Invocation types have already been implemented and integrated into `InspectorClient`. The remaining work for Phase 1 is to create the `ContentCache` module itself. + +--- + +### Phase 2: Integrate ContentCache into InspectorClient (Infrastructure Only) + +**Goal:** Add ContentCache to InspectorClient without changing existing behavior. + +**Deliverables:** + +1. Import `ContentCache` and `ReadOnlyContentCache` from `./contentCache.js` in `InspectorClient` +2. Import invocation types (`ResourceReadInvocation`, `ResourceTemplateReadInvocation`, `PromptGetInvocation`, `ToolCallInvocation`) from `./types.js` in `InspectorClient` +3. Add `private cacheInternal: ContentCache` property +4. Add `public readonly cache: ReadOnlyContentCache` property +5. Initialize cache in constructor +6. Clear all cache maps on disconnect (in `disconnect()` method) + +**Testing:** + +- Verify `client.cache` is accessible and returns `null` for all getters initially +- Verify cache is cleared when `disconnect()` is called +- Verify no breaking changes to existing API +- All existing tests pass (no regressions) + +**Acceptance Criteria:** + +- `client.cache` is accessible and functional +- Cache is cleared on disconnect +- No breaking changes to existing API +- All existing tests pass + +**Rationale:** Separating infrastructure from functionality allows validation that the integration doesn't break anything before adding caching behavior. + +--- + +### Phase 3: Implement All Caching Types + +**Goal:** Add caching to all fetch methods (resources, templates, prompts, tool results) simultaneously. + +**Deliverables:** + +1. Modify `readResource()` to: + - Keep existing behavior (always fetch fresh) + - Store in cache: `this.cacheInternal.setResource(uri, { result, timestamp })` + - Dispatch `resourceContentChange` event +2. Modify `readResourceFromTemplate()` to: + - **Already implemented** - Method already returns `ResourceTemplateReadInvocation` and creates invocation objects + - Store in cache: `this.cacheInternal.setResourceTemplate(uriTemplate, invocation)` (invocation object already created) + - Dispatch `resourceTemplateContentChange` event +3. Modify `getPrompt()` to: + - **Already implemented** - Method already returns `PromptGetInvocation` and creates invocation objects + - Store in cache: `this.cacheInternal.setPrompt(name, invocation)` (invocation object already created) + - Dispatch `promptContentChange` event +4. Modify `callTool()` to: + - **Already implemented** - Method already returns `ToolCallInvocation` and creates invocation objects + - On success: Store in cache: `this.cacheInternal.setToolCallResult(name, invocation)` (invocation with `success: true`) + - On error: Store in cache: `this.cacheInternal.setToolCallResult(name, invocation)` (invocation with `success: false` and error) + - Dispatch `toolCallResultChange` event +5. Add new event types: + - `resourceContentChange` + - `resourceTemplateContentChange` + - `promptContentChange` + - `toolCallResultChange` + +**Testing:** + +- Test that each fetch method stores content in cache +- Test that `client.cache.get*()` methods return cached content +- Test that events are dispatched with correct detail structure +- Test that cache persists across multiple calls +- Test that subsequent calls replace cache entries +- Test error handling (tool call failures) + +**Acceptance Criteria:** + +- All fetch methods continue to work as before (no breaking changes) +- ✅ Methods already return invocation types (completed in previous work) +- Content is stored in cache after each fetch operation +- Cache getters return cached content correctly +- Events are dispatched with correct detail structure +- All existing tests pass + +**Rationale:** Implementing all cache types together is efficient since they follow the same pattern. The cache module is already tested, so this phase focuses on integration. + +**Note:** The invocation type implementation is complete. This phase focuses on adding caching behavior to the existing methods (storing invocation objects in the cache and dispatching events). + +--- + +### Phase 4: Configuration and Subscription Infrastructure + +**Goal:** Add configuration options and subscription state management (no handlers yet). + +**Deliverables:** + +1. Add `listChangedNotifications` option to `InspectorClientOptions` (tools, resources, prompts) +2. Add `private subscribedResources: Set` to InspectorClient +3. Add helper methods: + - `getSubscribedResources(): string[]` + - `isSubscribedToResource(uri: string): boolean` + - `supportsResourceSubscriptions(): boolean` +4. Initialize options in constructor +5. Clear subscriptions on disconnect + +**Testing:** + +- Test that `listChangedNotifications` options are initialized correctly +- Test that subscription helper methods work +- Test that subscriptions are cleared on disconnect +- Test that `supportsResourceSubscriptions()` checks server capability + +**Acceptance Criteria:** + +- Configuration options are accessible and initialized correctly +- Subscription state is managed correctly +- Helper methods return correct values +- No breaking changes to existing API + +**Rationale:** Setting up infrastructure before implementing features allows for cleaner separation of concerns and easier testing. + +--- + +### Phase 5: ListChanged Notification Handlers + +**Goal:** Add handlers for listChanged notifications that reload lists and preserve cache. + +**Deliverables:** + +1. Modify existing `list*()` methods to: + - Update internal state (`this.tools`, `this.resources`, `this.resourceTemplates`, `this.prompts`) + - Clean up cache entries for items no longer in the list + - Dispatch change events (`toolsChange`, `resourcesChange`, `resourceTemplatesChange`, `promptsChange`) + - Return the fetched arrays (maintain existing API) +2. Set up notification handlers in `connect()` based on config: + - `notifications/tools/list_changed` → Call `await this.listTools()` (which handles state update, cache cleanup, and event dispatch) + - `notifications/resources/list_changed` → Call both `await this.listResources()` and `await this.listResourceTemplates()` (both handle state update, cache cleanup, and event dispatch) + - `notifications/prompts/list_changed` → Call `await this.listPrompts()` (which handles state update, cache cleanup, and event dispatch) + - Note: Resource templates are part of the resources capability, so `notifications/resources/list_changed` should reload both resources and resource templates +3. Import notification schemas from SDK: + - `ToolListChangedNotificationSchema` + - `ResourceListChangedNotificationSchema` + - `PromptListChangedNotificationSchema` + +**Implementation Details:** + +- Modify `listResources()` to: + 1. Fetch from server: `const newResources = await this.client.listResources(params)` + 2. Compare `newResources` with `this.resources` to find removed URIs + 3. For each removed URI, call `this.cacheInternal.clearResource(uri)` (cache cleanup) + 4. Update `this.resources = newResources` + 5. Dispatch `resourcesChange` event + 6. Return `newResources` (maintain existing API) + 7. Note: Cached content for existing resources is automatically preserved (cache is not cleared unless explicitly removed) +- Modify `listPrompts()` to: + 1. Fetch from server: `const newPrompts = await this.client.listPrompts(params)` + 2. Compare `newPrompts` with `this.prompts` to find removed prompt names + 3. For each removed prompt name, call `this.cacheInternal.clearPrompt(name)` (cache cleanup) + 4. Update `this.prompts = newPrompts` + 5. Dispatch `promptsChange` event + 6. Return `newPrompts` (maintain existing API) + 7. Note: Cached content for existing prompts is automatically preserved +- Modify `listResourceTemplates()` to: + 1. Fetch from server: `const newTemplates = await this.client.listResourceTemplates(params)` + 2. Compare `newTemplates` with `this.resourceTemplates` to find removed `uriTemplate` values + 3. For each removed `uriTemplate`, call `this.cacheInternal.clearResourceTemplate(uriTemplate)` (cache cleanup) + 4. Update `this.resourceTemplates = newTemplates` + 5. Dispatch `resourceTemplatesChange` event + 6. Return `newTemplates` (maintain existing API) + 7. Note: Cached content for existing templates is automatically preserved (cache is not cleared unless explicitly removed) +- Modify `listTools()` to: + 1. Fetch from server: `const newTools = await this.client.listTools(params)` + 2. Update `this.tools = newTools` + 3. Dispatch `toolsChange` event + 4. Return `newTools` (maintain existing API) + 5. Note: Tool call result cache is not cleaned up (results persist even if tool is removed) +- Notification handlers are thin wrappers that just call the `list*()` methods +- Update `fetchServerContents()` to remove duplicate state update and event dispatch logic: + - Change `this.resources = await this.listResources(); this.dispatchEvent(...)` to just `await this.listResources()` + - Change `this.resourceTemplates = await this.listResourceTemplates(); this.dispatchEvent(...)` to just `await this.listResourceTemplates()` + - Change `this.prompts = await this.listPrompts(); this.dispatchEvent(...)` to just `await this.listPrompts()` + - Change `this.tools = await this.listTools(); this.dispatchEvent(...)` to just `await this.listTools()` + - The list methods now handle state updates and event dispatching internally + +**Testing:** + +- Test that `listResources()` updates `this.resources` and dispatches `resourcesChange` event +- Test that `listResources()` cleans up cache for removed resources +- Test that `listResources()` preserves cache for existing resources +- Test that `listResourceTemplates()` updates `this.resourceTemplates` and dispatches `resourceTemplatesChange` event +- Test that `listResourceTemplates()` cleans up cache for removed templates (by `uriTemplate`) +- Test that `listResourceTemplates()` preserves cache for existing templates +- Test that `listPrompts()` updates `this.prompts` and dispatches `promptsChange` event +- Test that `listPrompts()` cleans up cache for removed prompts +- Test that `listPrompts()` preserves cache for existing prompts +- Test that `listTools()` updates `this.tools` and dispatches `toolsChange` event +- Test that notification handlers call the correct `list*()` methods +- Test that handlers respect configuration (can be disabled) +- Test that `list*()` methods still return arrays (backward compatibility) +- Test with test server that sends listChanged notifications + +**Acceptance Criteria:** + +- All three notification types are handled +- Lists are reloaded when notifications are received +- Cached content is preserved for existing items +- Cached content is cleared for removed items +- Events are dispatched correctly +- Configuration controls handler setup + +**Rationale:** This phase depends on Phase 3 (caching) to test cache preservation behavior. The cache infrastructure is already in place, so this focuses on notification handling. + +--- + +### Phase 6: Resource Subscriptions + +**Goal:** Add subscribe/unsubscribe methods and handle resource updated notifications. + +**Deliverables:** + +1. Implement `subscribeToResource(uri: string)`: + - Check server capability: `this.capabilities?.resources?.subscribe === true` + - Call `client.request({ method: "resources/subscribe", params: { uri } })` + - Add to `subscribedResources` Set + - Dispatch `resourceSubscriptionsChange` event +2. Implement `unsubscribeFromResource(uri: string)`: + - Call `client.request({ method: "resources/unsubscribe", params: { uri } })` + - Remove from `subscribedResources` Set + - Dispatch `resourceSubscriptionsChange` event +3. Set up `notifications/resources/updated` handler in `connect()` (only if server supports subscriptions) +4. Handler logic: + - Check if resource is subscribed + - If subscribed AND cached: Reload content via `readResource()` (which updates cache) + - If subscribed but not cached: Dispatch `resourceUpdated` event (descriptor-only) + - Dispatch `resourceContentChange` event if content was reloaded +5. Add event types: + - `resourceSubscriptionsChange` + - `resourceUpdated` + +**Testing:** + +- Test that `subscribeToResource()` calls SDK method correctly +- Test that `unsubscribeFromResource()` calls SDK method correctly +- Test that subscription state is tracked correctly +- Test that `resourceSubscriptionsChange` event is dispatched +- Test that handler only processes subscribed resources +- Test that cached resources are reloaded automatically +- Test that non-cached resources trigger `resourceUpdated` event +- Test that subscription fails gracefully if server doesn't support it +- Test with test server that supports subscriptions and sends resource updated notifications + +**Acceptance Criteria:** + +- Subscribe/unsubscribe methods work correctly +- Subscription state is tracked +- Resource updated notifications are handled correctly +- Cached resources are auto-reloaded +- Events are dispatched correctly +- Graceful handling of unsupported servers +- No breaking changes to existing API + +**Rationale:** This phase depends on Phase 3 (resource caching) for the auto-reload functionality. The subscription infrastructure from Phase 4 is already in place. + +--- + +### Phase 7: Integration Testing and Documentation + +**Goal:** Comprehensive testing, edge case handling, and documentation updates. + +**Deliverables:** + +1. Integration tests covering: + - Full workflow: subscribe → receive update → content reloaded + - ListChanged notifications for all types + - Cache persistence across list reloads + - Cache clearing on disconnect + - Multiple resource subscriptions + - Error scenarios (subscription failures, cache failures) +2. Edge case testing: + - Empty lists + - Rapid notifications + - Disconnect during operations + - Server capability changes +3. Update documentation: + - API documentation for new methods + - Event documentation for new events + - Usage examples + - Update feature gaps document +4. Code review and cleanup + +**Testing:** + +- Run full test suite +- Test with real MCP servers (if available) +- Test edge cases +- Performance testing (if applicable) + +**Acceptance Criteria:** + +- All tests pass +- Documentation is complete and accurate +- No regressions in existing functionality +- Code is ready for review +- Edge cases are handled gracefully + +**Rationale:** Final validation phase ensures everything works together correctly and documentation is complete. ## Questions and Considerations diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index 0687a1c5b..094314536 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -552,8 +552,10 @@ describe("InspectorClient", () => { message: "hello world", }); - expect(result).toHaveProperty("content"); - const content = result.content as any[]; + expect(result).toHaveProperty("result"); + expect(result.success).toBe(true); + expect(result.result).toHaveProperty("content"); + const content = result.result!.content as any[]; expect(Array.isArray(content)).toBe(true); expect(content[0]).toHaveProperty("type", "text"); expect(content[0].text).toContain("hello world"); @@ -564,9 +566,10 @@ describe("InspectorClient", () => { a: 42, b: 58, }); + expect(result.success).toBe(true); - expect(result).toHaveProperty("content"); - const content = result.content as any[]; + expect(result.result).toHaveProperty("content"); + const content = result.result!.content as any[]; const resultData = JSON.parse(content[0].text); expect(resultData.result).toBe(100); }); @@ -577,8 +580,8 @@ describe("InspectorClient", () => { includeImage: true, }); - expect(result).toHaveProperty("content"); - const content = result.content as any[]; + expect(result.result).toHaveProperty("content"); + const content = result.result!.content as any[]; expect(content.length).toBeGreaterThan(1); const hasImage = content.some((item: any) => item.type === "image"); expect(hasImage).toBe(true); @@ -587,11 +590,15 @@ describe("InspectorClient", () => { it("should handle tool not found", async () => { const result = await client.callTool("nonexistent-tool", {}); // When tool is not found, the SDK returns an error response, not an exception - expect(result).toHaveProperty("isError", true); - expect(result).toHaveProperty("content"); - const content = result.content as any[]; - expect(content[0]).toHaveProperty("text"); - expect(content[0].text).toContain("not found"); + expect(result.success).toBe(true); // SDK returns error in result, not as exception + expect(result.result).toHaveProperty("isError", true); + expect(result.result).toBeDefined(); + if (result.result) { + expect(result.result).toHaveProperty("content"); + const content = result.result.content as any[]; + expect(content[0]).toHaveProperty("text"); + expect(content[0].text).toContain("not found"); + } }); }); @@ -621,7 +628,8 @@ describe("InspectorClient", () => { if (resources.length > 0) { const uri = resources[0]!.uri; const readResult = await client.readResource(uri); - expect(readResult).toHaveProperty("contents"); + expect(readResult).toHaveProperty("result"); + expect(readResult.result).toHaveProperty("contents"); } }); }); @@ -671,15 +679,17 @@ describe("InspectorClient", () => { // Read the resource using the expanded URI const readResult = await client.readResource(expandedUri); - expect(readResult).toHaveProperty("contents"); - const contents = (readResult as any).contents; + expect(readResult).toHaveProperty("result"); + expect(readResult.result).toHaveProperty("contents"); + const contents = readResult.result.contents; expect(Array.isArray(contents)).toBe(true); expect(contents.length).toBeGreaterThan(0); const content = contents[0]; expect(content).toHaveProperty("uri"); - expect(content).toHaveProperty("text"); - expect(content.text).toContain("Mock file content for: test.txt"); + if (content && "text" in content) { + expect(content.text).toContain("Mock file content for: test.txt"); + } }); it("should include resources from template list callback in listResources", async () => { @@ -944,9 +954,11 @@ describe("InspectorClient", () => { // Verify the tool result contains the sampling response expect(toolResult).toBeDefined(); - expect(toolResult.content).toBeDefined(); - expect(Array.isArray(toolResult.content)).toBe(true); - const toolContent = toolResult.content as any[]; + expect(toolResult.success).toBe(true); + expect(toolResult.result).toBeDefined(); + expect(toolResult.result!.content).toBeDefined(); + expect(Array.isArray(toolResult.result!.content)).toBe(true); + const toolContent = toolResult.result!.content as any[]; expect(toolContent.length).toBeGreaterThan(0); const toolMessage = toolContent[0]; expect(toolMessage).toBeDefined(); @@ -1213,9 +1225,11 @@ describe("InspectorClient", () => { // Verify the tool result contains the elicitation response expect(toolResult).toBeDefined(); - expect(toolResult.content).toBeDefined(); - expect(Array.isArray(toolResult.content)).toBe(true); - const toolContent = toolResult.content as any[]; + expect(toolResult.success).toBe(true); + expect(toolResult.result).toBeDefined(); + expect(toolResult.result!.content).toBeDefined(); + expect(Array.isArray(toolResult.result!.content)).toBe(true); + const toolContent = toolResult.result!.content as any[]; expect(toolContent.length).toBeGreaterThan(0); const toolMessage = toolContent[0]; expect(toolMessage).toBeDefined(); @@ -1267,9 +1281,11 @@ describe("InspectorClient", () => { // Verify the tool result contains the roots expect(toolResult).toBeDefined(); - expect(toolResult.content).toBeDefined(); - expect(Array.isArray(toolResult.content)).toBe(true); - const toolContent = toolResult.content as any[]; + expect(toolResult.success).toBe(true); + expect(toolResult.result).toBeDefined(); + expect(toolResult.result!.content).toBeDefined(); + expect(Array.isArray(toolResult.result!.content)).toBe(true); + const toolContent = toolResult.result!.content as any[]; expect(toolContent.length).toBeGreaterThan(0); const toolMessage = toolContent[0]; expect(toolMessage).toBeDefined(); diff --git a/shared/mcp/index.ts b/shared/mcp/index.ts index 5edd05490..3d1910848 100644 --- a/shared/mcp/index.ts +++ b/shared/mcp/index.ts @@ -17,6 +17,11 @@ export type { MessageEntry, FetchRequestEntry, ServerState, + // Invocation types (returned from InspectorClient methods) + ResourceReadInvocation, + ResourceTemplateReadInvocation, + PromptGetInvocation, + ToolCallInvocation, } from "./types.js"; // Re-export JSON utilities diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index cd365e07d..4274b9ad8 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -5,6 +5,10 @@ import type { ConnectionStatus, MessageEntry, FetchRequestEntry, + ResourceReadInvocation, + ResourceTemplateReadInvocation, + PromptGetInvocation, + ToolCallInvocation, } from "./types.js"; import { createTransport, @@ -751,7 +755,7 @@ export class InspectorClient extends EventTarget { args: Record, generalMetadata?: Record, toolSpecificMetadata?: Record, - ): Promise { + ): Promise { if (!this.client) { throw new Error("Client is not connected"); } @@ -787,19 +791,55 @@ export class InspectorClient extends EventTarget { }; } - const response = await this.client.callTool({ + const timestamp = new Date(); + const metadata = + mergedMetadata && Object.keys(mergedMetadata).length > 0 + ? mergedMetadata + : undefined; + + const result = await this.client.callTool({ name: name, arguments: convertedArgs, - _meta: - mergedMetadata && Object.keys(mergedMetadata).length > 0 - ? mergedMetadata - : undefined, + _meta: metadata, }); - return response as CallToolResult; + + const invocation: ToolCallInvocation = { + toolName: name, + params: args, + result: result as CallToolResult, + timestamp, + success: true, + metadata, + }; + + return invocation; } catch (error) { - throw new Error( - `Failed to call tool ${name}: ${error instanceof Error ? error.message : String(error)}`, - ); + // Merge general metadata with tool-specific metadata for error case + let mergedMetadata: Record | undefined; + if (generalMetadata || toolSpecificMetadata) { + mergedMetadata = { + ...(generalMetadata || {}), + ...(toolSpecificMetadata || {}), + }; + } + + const timestamp = new Date(); + const metadata = + mergedMetadata && Object.keys(mergedMetadata).length > 0 + ? mergedMetadata + : undefined; + + const invocation: ToolCallInvocation = { + toolName: name, + params: args, + result: null, + timestamp, + success: false, + error: error instanceof Error ? error.message : String(error), + metadata, + }; + + return invocation; } } @@ -833,7 +873,7 @@ export class InspectorClient extends EventTarget { async readResource( uri: string, metadata?: Record, - ): Promise { + ): Promise { if (!this.client) { throw new Error("Client is not connected"); } @@ -842,8 +882,14 @@ export class InspectorClient extends EventTarget { if (metadata && Object.keys(metadata).length > 0) { params._meta = metadata; } - const response = await this.client.readResource(params); - return response; + const result = await this.client.readResource(params); + const invocation: ResourceReadInvocation = { + result, + timestamp: new Date(), + uri, + metadata, + }; + return invocation; } catch (error) { throw new Error( `Failed to read resource ${uri}: ${error instanceof Error ? error.message : String(error)}`, @@ -865,11 +911,7 @@ export class InspectorClient extends EventTarget { uriTemplate: string, params: Record, metadata?: Record, - ): Promise<{ - contents: Array<{ uri: string; mimeType?: string; text: string }>; - uri: string; // The expanded URI - uriTemplate: string; // The uriTemplate for reference - }> { + ): Promise { if (!this.client) { throw new Error("Client is not connected"); } @@ -904,24 +946,19 @@ export class InspectorClient extends EventTarget { } // Always fetch fresh content: Call readResource with expanded URI - const response = await this.readResource(expandedUri, metadata); - - // Extract contents from response (response.contents is the standard format) - const contents = - (response.contents as Array<{ - uri: string; - mimeType?: string; - text: string; - }>) || []; - - // Return the response in the expected format - // Include the full response for backward compatibility, plus the expanded URI and uriTemplate - return { - ...response, - contents, - uri: expandedUri, - uriTemplate, + const readInvocation = await this.readResource(expandedUri, metadata); + + // Create the template invocation object + const invocation: ResourceTemplateReadInvocation = { + uriTemplate: uriTemplateString, + expandedUri, + result: readInvocation.result, + timestamp: readInvocation.timestamp, + params, + metadata, }; + + return invocation; } /** @@ -979,7 +1016,7 @@ export class InspectorClient extends EventTarget { name: string, args?: Record, metadata?: Record, - ): Promise { + ): Promise { if (!this.client) { throw new Error("Client is not connected"); } @@ -996,9 +1033,17 @@ export class InspectorClient extends EventTarget { params._meta = metadata; } - const response = await this.client.getPrompt(params); + const result = await this.client.getPrompt(params); + + const invocation: PromptGetInvocation = { + result, + timestamp: new Date(), + name, + params: Object.keys(stringArgs).length > 0 ? stringArgs : undefined, + metadata, + }; - return response; + return invocation; } catch (error) { throw new Error( `Failed to get prompt: ${error instanceof Error ? error.message : String(error)}`, diff --git a/shared/mcp/types.ts b/shared/mcp/types.ts index 9e327cdf7..5989cd56f 100644 --- a/shared/mcp/types.ts +++ b/shared/mcp/types.ts @@ -92,3 +92,64 @@ export interface ServerState { tools: any[]; stderrLogs: StderrLogEntry[]; } + +import type { + ReadResourceResult, + GetPromptResult, + CallToolResult, +} from "@modelcontextprotocol/sdk/types.js"; +import type { JsonValue } from "../json/jsonUtils.js"; + +/** + * Represents a complete resource read invocation, including request parameters, + * response, and metadata. This object is returned from InspectorClient.readResource() + * and cached for later retrieval. + */ +export interface ResourceReadInvocation { + result: ReadResourceResult; // The full SDK response object + timestamp: Date; // When the call was made + uri: string; // The URI that was read (request parameter) + metadata?: Record; // Optional metadata that was passed +} + +/** + * Represents a complete resource template read invocation, including request parameters, + * response, and metadata. This object is returned from InspectorClient.readResourceFromTemplate() + * and cached for later retrieval. + */ +export interface ResourceTemplateReadInvocation { + uriTemplate: string; // The URI template string (unique ID) + expandedUri: string; // The expanded URI after template expansion + result: ReadResourceResult; // The full SDK response object + timestamp: Date; // When the call was made + params: Record; // The parameters used to expand the template (request parameters) + metadata?: Record; // Optional metadata that was passed +} + +/** + * Represents a complete prompt get invocation, including request parameters, + * response, and metadata. This object is returned from InspectorClient.getPrompt() + * and cached for later retrieval. + */ +export interface PromptGetInvocation { + result: GetPromptResult; // The full SDK response object + timestamp: Date; // When the call was made + name: string; // The prompt name (request parameter) + params?: Record; // The parameters used when fetching the prompt (request parameters) + metadata?: Record; // Optional metadata that was passed +} + +/** + * Represents a complete tool call invocation, including request parameters, + * response, and metadata. This object is returned from InspectorClient.callTool() + * and cached for later retrieval. + */ +export interface ToolCallInvocation { + toolName: string; // The tool that was called (request parameter) + params: Record; // The arguments passed to the tool (request parameters) + result: CallToolResult | null; // The full SDK response object (null on error) + timestamp: Date; // When the call was made + success: boolean; // true if call succeeded, false if it threw + error?: string; // Error message if success === false + metadata?: Record; // Optional metadata that was passed +} diff --git a/tui/src/components/PromptTestModal.tsx b/tui/src/components/PromptTestModal.tsx index 24422e905..6a389afa2 100644 --- a/tui/src/components/PromptTestModal.tsx +++ b/tui/src/components/PromptTestModal.tsx @@ -133,13 +133,13 @@ export function PromptTestModal({ try { // Get the prompt using the provided arguments - const response = await inspectorClient.getPrompt(prompt.name, values); + const invocation = await inspectorClient.getPrompt(prompt.name, values); const duration = Date.now() - startTime; setResult({ input: values, - output: response, + output: invocation.result, duration, }); setState("results"); diff --git a/tui/src/components/PromptsTab.tsx b/tui/src/components/PromptsTab.tsx index ec0c61142..691438891 100644 --- a/tui/src/components/PromptsTab.tsx +++ b/tui/src/components/PromptsTab.tsx @@ -46,14 +46,14 @@ export function PromptsTab({ // No arguments, fetch directly (async () => { try { - const response = await inspectorClient.getPrompt( + const invocation = await inspectorClient.getPrompt( selectedPrompt.name, ); // Show result in details modal if (onViewDetails) { onViewDetails({ ...selectedPrompt, - result: response, + result: invocation.result, }); } } catch (error) { diff --git a/tui/src/components/ResourceTestModal.tsx b/tui/src/components/ResourceTestModal.tsx index 8e5ccc61b..f34af3223 100644 --- a/tui/src/components/ResourceTestModal.tsx +++ b/tui/src/components/ResourceTestModal.tsx @@ -134,7 +134,7 @@ export function ResourceTestModal({ try { // Use InspectorClient's readResourceFromTemplate method which encapsulates template expansion and resource reading - const response = await inspectorClient.readResourceFromTemplate( + const invocation = await inspectorClient.readResourceFromTemplate( template.uriTemplate, values, ); @@ -143,9 +143,9 @@ export function ResourceTestModal({ setResult({ input: values, - output: response, + output: invocation.result, // Extract the SDK result from the invocation duration, - uri: response.uri, + uri: invocation.expandedUri, // Use expandedUri instead of uri }); setState("results"); } catch (error) { diff --git a/tui/src/components/ResourcesTab.tsx b/tui/src/components/ResourcesTab.tsx index 18c30c5c3..79998fefc 100644 --- a/tui/src/components/ResourcesTab.tsx +++ b/tui/src/components/ResourcesTab.tsx @@ -165,9 +165,9 @@ export function ResourcesTab({ setLoading(true); setError(null); try { - const response = + const invocation = await inspectorClient.readResource(shouldFetchResource); - setResourceContent(response); + setResourceContent(invocation.result); } catch (err) { setError( err instanceof Error ? err.message : "Failed to read resource", diff --git a/tui/src/components/ToolTestModal.tsx b/tui/src/components/ToolTestModal.tsx index 7f08304ee..62f87aba5 100644 --- a/tui/src/components/ToolTestModal.tsx +++ b/tui/src/components/ToolTestModal.tsx @@ -117,24 +117,38 @@ export function ToolTestModal({ try { // Use InspectorClient.callTool() which handles parameter conversion and metadata - const response = await inspectorClient.callTool(tool.name, values); + const invocation = await inspectorClient.callTool(tool.name, values); const duration = Date.now() - startTime; - // InspectorClient.callTool() returns Record - // Check for error indicators in the response - const isError = "isError" in response && response.isError === true; - const output = isError - ? { error: true, content: response.content } - : response.structuredContent || response.content || response; + // InspectorClient.callTool() returns ToolCallInvocation + // Check if the call succeeded and extract the result + if (!invocation.success || invocation.result === null) { + // Error case: tool call failed + setResult({ + input: values, + output: null, + error: invocation.error || "Tool call failed", + errorDetails: invocation, + duration, + }); + } else { + // Success case: extract the result + const result = invocation.result; + // Check for error indicators in the result (SDK may return error in result) + const isError = "isError" in result && result.isError === true; + const output = isError + ? { error: true, content: result.content } + : result.structuredContent || result.content || result; - setResult({ - input: values, - output: isError ? null : output, - error: isError ? "Tool returned an error" : undefined, - errorDetails: isError ? output : undefined, - duration, - }); + setResult({ + input: values, + output: isError ? null : output, + error: isError ? "Tool returned an error" : undefined, + errorDetails: isError ? output : undefined, + duration, + }); + } setState("results"); } catch (error) { const duration = Date.now() - startTime; From 10fe750b24d72d29eb211266f3b6b0b8cfa74b4a Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Fri, 23 Jan 2026 14:28:24 -0800 Subject: [PATCH 34/44] Implemented standalone content cache and tests --- ...source-subscriptions-listchanged-design.md | 193 ++---- shared/__tests__/contentCache.test.ts | 564 ++++++++++++++++++ shared/mcp/contentCache.ts | 217 +++++++ shared/mcp/index.ts | 7 + 4 files changed, 831 insertions(+), 150 deletions(-) create mode 100644 shared/__tests__/contentCache.test.ts create mode 100644 shared/mcp/contentCache.ts diff --git a/docs/resource-subscriptions-listchanged-design.md b/docs/resource-subscriptions-listchanged-design.md index 1af7002d4..f5ec148cb 100644 --- a/docs/resource-subscriptions-listchanged-design.md +++ b/docs/resource-subscriptions-listchanged-design.md @@ -300,28 +300,26 @@ supportsResourceSubscriptions(): boolean; **Behavior:** 1. Check if the resource URI is in `this.subscribedResources` -2. If subscribed AND content is cached (checked via `client.cache.getResource(uri)` for regular resources): - - Reload the resource content via `readResource()` (which will fetch fresh and update `this.cache.resourceContentCache`) - - Dispatch `resourceContentChange` event with updated content -3. If subscribed but not cached: - - Optionally reload (or wait for user to view it) - - Dispatch `resourceUpdated` event (descriptor-only update) +2. If subscribed: + - Clear the resource from cache using `this.cacheInternal.clearResourceAndResourceTemplate(uri)` + - This method clears both regular resources cached by URI and resource templates with matching `expandedUri` + - Dispatch `resourceUpdated` event to notify UI that the resource has changed +3. If not subscribed: + - Ignore the notification (no action needed) **Event:** ```typescript // New event type -interface ResourceContentChangeEvent extends CustomEvent { +interface ResourceUpdatedEvent extends CustomEvent { detail: { uri: string; - content: { - contents: Array<{ uri: string; mimeType?: string; text: string }>; - timestamp: Date; - }; }; } ``` +**Note:** The cache's `clearResourceAndResourceTemplate()` method handles clearing both regular resources and resource templates that match the URI, so the handler doesn't need to check multiple cache types. + ### 6. Cache API Design **Design: Separate Cache Module with Read/Write and Read-Only Interfaces** @@ -351,6 +349,7 @@ client.cache.getToolCallResult(toolName); // Clear methods (remove cached content) client.cache.clearResource(uri); +client.cache.clearResourceAndResourceTemplate(uri); // Clears both regular resources and resource templates with matching expandedUri client.cache.clearResourceTemplate(uriTemplate); client.cache.clearPrompt(name); client.cache.clearToolCallResult(toolName); @@ -384,70 +383,28 @@ class InspectorClient { private tools: Tool[] = []; // Single integrated cache object - public readonly cache: ContentCache; + private cacheInternal: ContentCache; // Full access for InspectorClient + public readonly cache: ReadOnlyContentCache; // Read-only access for users constructor(...) { // Create integrated cache object - this.cache = new ContentCache(); - } -} - -class ContentCache { - // Internal storage - all cached content managed by this single object - private resourceContentCache: Map = new Map(); // Keyed by URI - private resourceTemplateContentCache: Map = new Map(); // Keyed by uriTemplate - private promptContentCache: Map = new Map(); - private toolCallResultCache: Map = new Map(); - - getResource(uri: string): ResourceReadInvocation | null { - return this.resourceContentCache.get(uri) ?? null; - } - - getResourceTemplate(uriTemplate: string): ResourceTemplateReadInvocation | null { - // Look up by uriTemplate (the unique ID of the template) - return this.resourceTemplateContentCache.get(uriTemplate) ?? null; - } - - getPrompt(name: string): PromptGetInvocation | null { - return this.promptContentCache.get(name) ?? null; - } - - getToolCallResult(toolName: string): ToolCallInvocation | null { - return this.toolCallResultCache.get(toolName) ?? null; - } - - clearResource(uri: string): void { - this.resourceContentCache.delete(uri); - } - - clearPrompt(name: string): void { - this.promptContentCache.delete(name); + this.cacheInternal = new ContentCache(); + this.cache = this.cacheInternal; // Expose read-only interface } - - clearToolCallResult(toolName: string): void { - this.toolCallResultCache.delete(toolName); - } - - clearAll(): void { - this.resourceContentCache.clear(); - this.promptContentCache.clear(); - this.toolCallResultCache.clear(); - } - - // Future: getStats(), configure(), etc. } ``` +**Note:** The `ContentCache` class is already implemented in `shared/mcp/contentCache.ts` with all getter, setter, and clear methods for resources, resource templates, prompts, and tool call results. + **Cache Storage:** -- Cache content is **automatically stored** when fetch methods are called: - - `readResource(uri)` → stores in `this.cache.resourceContentCache.set(uri, {...})` - - `readResourceFromTemplate(uriTemplate, params)` → stores in `this.cache.resourceTemplateContentCache.set(uriTemplate, {...})` - - `getPrompt(name, args)` → stores in `this.cache.promptContentCache.set(name, {...})` - - `callTool(name, args)` → stores in `this.cache.toolCallResultCache.set(name, {...})` -- There are **no explicit setter methods** on the cache object - content is set automatically by InspectorClient methods +- Cache content is **automatically stored** when fetch methods are called (in Phase 2): + - `readResource(uri)` → stores via `this.cacheInternal.setResource(uri, invocation)` + - `readResourceFromTemplate(uriTemplate, params)` → stores via `this.cacheInternal.setResourceTemplate(uriTemplate, invocation)` + - `getPrompt(name, args)` → stores via `this.cacheInternal.setPrompt(name, invocation)` + - `callTool(name, args)` → stores via `this.cacheInternal.setToolCallResult(name, invocation)` - The cache object provides **read-only access** via getter methods and **clear methods** for cache management -- InspectorClient methods directly access the cache's internal maps to store content (the cache object owns the maps) +- InspectorClient uses `cacheInternal` (full access) to store content, and exposes `cache` (read-only) to users **Usage Pattern:** @@ -517,12 +474,10 @@ async readResourceFromTemplate( - Use SDK's `UriTemplate` class: `new UriTemplate(uriTemplate).expand(params)` 4. Always fetch fresh content: Call `this.readResource(expandedUri, metadata)` (InspectorClient method) → returns `ResourceReadInvocation` 5. Create invocation object: `const invocation: ResourceTemplateReadInvocation = { uriTemplate, expandedUri, result: readInvocation.result, timestamp: readInvocation.timestamp, params, metadata }` - 6. Store in cache: `this.cacheInternal.setResourceTemplate(uriTemplate, invocation)` (TODO: add in Phase 3) - 7. Dispatch `resourceTemplateContentChange` event (TODO: add in Phase 3) + 6. Store in cache: `this.cacheInternal.setResourceTemplate(uriTemplate, invocation)` (TODO: add in Phase 2) + 7. Dispatch `resourceTemplateContentChange` event (TODO: add in Phase 2) 8. Return the invocation object (same object that's in the cache) - **Note:** ✅ Steps 1-5 and 8 are already implemented. Steps 6 and 7 will be added in Phase 3 when the cache is integrated. - **Resource Matching Logic:** - **Regular resources** are cached by URI: `this.cache.resourceContentCache.set(uri, content)` @@ -593,12 +548,10 @@ clearAllPromptContent(): void; 1. Convert args to strings (using existing `convertPromptArguments()`) 2. Always fetch fresh content: Call `client.getPrompt(name, stringArgs, metadata)` (SDK method) → returns `GetPromptResult` 3. Create invocation object: `const invocation: PromptGetInvocation = { result, timestamp: new Date(), name, params: stringArgs, metadata }` - 4. Store in cache: `this.cacheInternal.setPrompt(name, invocation)` (TODO: add in Phase 3) - 5. Dispatch `promptContentChange` event (TODO: add in Phase 3) + 4. Store in cache: `this.cacheInternal.setPrompt(name, invocation)` (TODO: add in Phase 2) + 5. Dispatch `promptContentChange` event (TODO: add in Phase 2) 6. Return the invocation object (same object that's in the cache) - **Note:** ✅ Steps 1-3 and 6 are already implemented. Steps 4 and 5 will be added in Phase 3 when the cache is integrated. This method now returns `PromptGetInvocation` instead of `GetPromptResult`. Access the SDK result via `invocation.result`. - - `client.cache.getPrompt(name)` (ContentCache method): - Accesses `this.promptContentCache` map (owned by ContentCache) by prompt name - Returns cached `PromptGetInvocation` object (same type as returned from `getPrompt()`), `null` if not cached @@ -699,62 +652,9 @@ async callTool( ## Implementation Plan -### Phase 1: ContentCache Module (Standalone) - -**Goal:** Create and test the ContentCache module independently before integration. - -**Deliverables:** - -1. ✅ **COMPLETED** - Invocation type interfaces defined in `shared/mcp/types.ts`: - - `ResourceReadInvocation` - wraps `ReadResourceResult` with `uri`, `timestamp`, `metadata` - - `ResourceTemplateReadInvocation` - wraps `ReadResourceResult` with `uriTemplate`, `expandedUri`, `params`, `timestamp`, `metadata` - - `PromptGetInvocation` - wraps `GetPromptResult` with `name`, `params`, `timestamp`, `metadata` - - `ToolCallInvocation` - wraps `CallToolResult` (or `null` on error) with `toolName`, `params`, `success`, `error`, `timestamp`, `metadata` - - ✅ **COMPLETED** - `InspectorClient` methods now return invocation types: - - `readResource()` → `Promise` - - `readResourceFromTemplate()` → `Promise` - - `getPrompt()` → `Promise` - - `callTool()` → `Promise` - - ✅ **COMPLETED** - Types exported from `shared/mcp/index.ts` - - ✅ **COMPLETED** - Tests updated to handle invocation types - - ✅ **COMPLETED** - CLI updated to extract `.result` from invocation objects -2. Create new module `shared/mcp/contentCache.ts` -3. Import invocation types from `./types.js` in `contentCache.ts` -4. Define `ReadOnlyContentCache` interface (getters and clear methods) -5. Define `ReadWriteContentCache` interface (extends ReadOnlyContentCache, adds setters) -6. Implement `ContentCache` class that implements `ReadWriteContentCache`: - - Internal Maps for each cache type - - Getter methods (return `null` if not cached) - - Clear methods (individual and `clearAll()`) - - Setter methods (for internal use) +### Phase 1: Integrate ContentCache into InspectorClient (Infrastructure Only) -**Testing:** - -- Unit tests for ContentCache class in `shared/__tests__/contentCache.test.ts` -- Test get/set/clear operations for each cache type -- Test that ReadOnlyContentCache interface prevents setter access -- Test edge cases (clearing non-existent entries, multiple operations) - -**Acceptance Criteria:** - -- ✅ Invocation types are defined in `shared/mcp/types.ts` and exported -- ✅ `InspectorClient` methods return invocation types -- ✅ Tests updated to handle invocation types -- ✅ CLI updated to extract results from invocation objects -- ContentCache can be instantiated -- All getter methods return `null` for non-existent entries -- All setter methods store entries correctly -- Clear methods work for individual entries and all entries -- Type safety is maintained (no `any` types) -- All tests pass - -**Rationale:** Testing the cache module standalone ensures it works correctly before integrating it into InspectorClient, making debugging easier and reducing risk. - -**Note:** Invocation types have already been implemented and integrated into `InspectorClient`. The remaining work for Phase 1 is to create the `ContentCache` module itself. - ---- - -### Phase 2: Integrate ContentCache into InspectorClient (Infrastructure Only) +**Note:** The `ContentCache` module has been implemented and tested. It provides `ReadOnlyContentCache` and `ReadWriteContentCache` interfaces, and the `ContentCache` class with get/set/clear methods for all cache types. **Goal:** Add ContentCache to InspectorClient without changing existing behavior. @@ -785,7 +685,7 @@ async callTool( --- -### Phase 3: Implement All Caching Types +### Phase 2: Implement All Caching Types **Goal:** Add caching to all fetch methods (resources, templates, prompts, tool results) simultaneously. @@ -796,15 +696,12 @@ async callTool( - Store in cache: `this.cacheInternal.setResource(uri, { result, timestamp })` - Dispatch `resourceContentChange` event 2. Modify `readResourceFromTemplate()` to: - - **Already implemented** - Method already returns `ResourceTemplateReadInvocation` and creates invocation objects - - Store in cache: `this.cacheInternal.setResourceTemplate(uriTemplate, invocation)` (invocation object already created) + - Store in cache: `this.cacheInternal.setResourceTemplate(uriTemplate, invocation)` - Dispatch `resourceTemplateContentChange` event 3. Modify `getPrompt()` to: - - **Already implemented** - Method already returns `PromptGetInvocation` and creates invocation objects - - Store in cache: `this.cacheInternal.setPrompt(name, invocation)` (invocation object already created) + - Store in cache: `this.cacheInternal.setPrompt(name, invocation)` - Dispatch `promptContentChange` event 4. Modify `callTool()` to: - - **Already implemented** - Method already returns `ToolCallInvocation` and creates invocation objects - On success: Store in cache: `this.cacheInternal.setToolCallResult(name, invocation)` (invocation with `success: true`) - On error: Store in cache: `this.cacheInternal.setToolCallResult(name, invocation)` (invocation with `success: false` and error) - Dispatch `toolCallResultChange` event @@ -826,7 +723,6 @@ async callTool( **Acceptance Criteria:** - All fetch methods continue to work as before (no breaking changes) -- ✅ Methods already return invocation types (completed in previous work) - Content is stored in cache after each fetch operation - Cache getters return cached content correctly - Events are dispatched with correct detail structure @@ -834,11 +730,9 @@ async callTool( **Rationale:** Implementing all cache types together is efficient since they follow the same pattern. The cache module is already tested, so this phase focuses on integration. -**Note:** The invocation type implementation is complete. This phase focuses on adding caching behavior to the existing methods (storing invocation objects in the cache and dispatching events). - --- -### Phase 4: Configuration and Subscription Infrastructure +### Phase 3: Configuration and Subscription Infrastructure **Goal:** Add configuration options and subscription state management (no handlers yet). @@ -871,7 +765,7 @@ async callTool( --- -### Phase 5: ListChanged Notification Handlers +### Phase 4: ListChanged Notification Handlers **Goal:** Add handlers for listChanged notifications that reload lists and preserve cache. @@ -958,11 +852,11 @@ async callTool( - Events are dispatched correctly - Configuration controls handler setup -**Rationale:** This phase depends on Phase 3 (caching) to test cache preservation behavior. The cache infrastructure is already in place, so this focuses on notification handling. +**Rationale:** This phase depends on Phase 2 (caching) to test cache preservation behavior. The cache infrastructure is already in place, so this focuses on notification handling. --- -### Phase 6: Resource Subscriptions +### Phase 5: Resource Subscriptions **Goal:** Add subscribe/unsubscribe methods and handle resource updated notifications. @@ -980,9 +874,8 @@ async callTool( 3. Set up `notifications/resources/updated` handler in `connect()` (only if server supports subscriptions) 4. Handler logic: - Check if resource is subscribed - - If subscribed AND cached: Reload content via `readResource()` (which updates cache) - - If subscribed but not cached: Dispatch `resourceUpdated` event (descriptor-only) - - Dispatch `resourceContentChange` event if content was reloaded + - If subscribed: Clear cache using `this.cacheInternal.clearResourceAndResourceTemplate(uri)` (clears both regular resources and resource templates with matching expandedUri) + - Dispatch `resourceUpdated` event to notify UI 5. Add event types: - `resourceSubscriptionsChange` - `resourceUpdated` @@ -994,8 +887,8 @@ async callTool( - Test that subscription state is tracked correctly - Test that `resourceSubscriptionsChange` event is dispatched - Test that handler only processes subscribed resources -- Test that cached resources are reloaded automatically -- Test that non-cached resources trigger `resourceUpdated` event +- Test that cached resources are cleared from cache (both regular resources and resource templates with matching expandedUri) +- Test that `resourceUpdated` event is dispatched when resource is cleared - Test that subscription fails gracefully if server doesn't support it - Test with test server that supports subscriptions and sends resource updated notifications @@ -1004,23 +897,23 @@ async callTool( - Subscribe/unsubscribe methods work correctly - Subscription state is tracked - Resource updated notifications are handled correctly -- Cached resources are auto-reloaded +- Cached resources are cleared from cache (both regular resources and resource templates) - Events are dispatched correctly - Graceful handling of unsupported servers - No breaking changes to existing API -**Rationale:** This phase depends on Phase 3 (resource caching) for the auto-reload functionality. The subscription infrastructure from Phase 4 is already in place. +**Rationale:** This phase depends on Phase 2 (resource caching) for cache clearing functionality. The subscription infrastructure from Phase 3 is already in place. --- -### Phase 7: Integration Testing and Documentation +### Phase 6: Integration Testing and Documentation **Goal:** Comprehensive testing, edge case handling, and documentation updates. **Deliverables:** 1. Integration tests covering: - - Full workflow: subscribe → receive update → content reloaded + - Full workflow: subscribe → receive update → cache cleared - ListChanged notifications for all types - Cache persistence across list reloads - Cache clearing on disconnect diff --git a/shared/__tests__/contentCache.test.ts b/shared/__tests__/contentCache.test.ts new file mode 100644 index 000000000..01f8a9304 --- /dev/null +++ b/shared/__tests__/contentCache.test.ts @@ -0,0 +1,564 @@ +import { describe, it, expect, beforeEach } from "vitest"; +import { + ContentCache, + type ReadOnlyContentCache, + type ReadWriteContentCache, +} from "../mcp/contentCache.js"; +import type { + ResourceReadInvocation, + ResourceTemplateReadInvocation, + PromptGetInvocation, + ToolCallInvocation, +} from "../mcp/types.js"; +import type { + ReadResourceResult, + GetPromptResult, + CallToolResult, +} from "@modelcontextprotocol/sdk/types.js"; + +// Helper functions to create test invocation objects +function createResourceReadInvocation( + uri: string, + timestamp: Date = new Date(), +): ResourceReadInvocation { + return { + uri, + timestamp, + result: { + contents: [ + { + uri: uri, + text: `Content for ${uri}`, + }, + ], + } as ReadResourceResult, + }; +} + +function createResourceTemplateReadInvocation( + uriTemplate: string, + expandedUri: string, + params: Record = {}, + timestamp: Date = new Date(), +): ResourceTemplateReadInvocation { + return { + uriTemplate, + expandedUri, + params, + timestamp, + result: { + contents: [ + { + uri: expandedUri, + text: `Content for ${expandedUri}`, + }, + ], + } as ReadResourceResult, + }; +} + +function createPromptGetInvocation( + name: string, + params: Record = {}, + timestamp: Date = new Date(), +): PromptGetInvocation { + return { + name, + params, + timestamp, + result: { + messages: [ + { + role: "user", + content: { + type: "text", + text: `Prompt content for ${name}`, + }, + }, + ], + } as GetPromptResult, + }; +} + +function createToolCallInvocation( + toolName: string, + success: boolean = true, + params: Record = {}, + timestamp: Date = new Date(), +): ToolCallInvocation { + return { + toolName, + params, + timestamp, + success, + result: success + ? ({ + content: [ + { + type: "text", + text: `Result from ${toolName}`, + }, + ], + } as CallToolResult) + : null, + error: success ? undefined : "Tool call failed", + }; +} + +describe("ContentCache", () => { + let cache: ContentCache; + + beforeEach(() => { + cache = new ContentCache(); + }); + + describe("instantiation", () => { + it("should create an empty cache", () => { + expect(cache).toBeInstanceOf(ContentCache); + expect(cache.getResource("test://uri")).toBeNull(); + expect(cache.getResourceTemplate("test://{path}")).toBeNull(); + expect(cache.getPrompt("testPrompt")).toBeNull(); + expect(cache.getToolCallResult("testTool")).toBeNull(); + }); + }); + + describe("Resource caching", () => { + it("should store and retrieve resource content", () => { + const uri = "file:///test.txt"; + const invocation = createResourceReadInvocation(uri); + + cache.setResource(uri, invocation); + const retrieved = cache.getResource(uri); + + expect(retrieved).toBe(invocation); // Object identity preserved + expect(retrieved?.uri).toBe(uri); + const content = retrieved?.result.contents[0]; + expect(content && "text" in content ? content.text : undefined).toBe( + "Content for file:///test.txt", + ); + }); + + it("should return null for non-existent resource", () => { + expect(cache.getResource("file:///nonexistent.txt")).toBeNull(); + }); + + it("should replace existing resource content", () => { + const uri = "file:///test.txt"; + const invocation1 = createResourceReadInvocation(uri, new Date(1000)); + const invocation2 = createResourceReadInvocation(uri, new Date(2000)); + + cache.setResource(uri, invocation1); + cache.setResource(uri, invocation2); + + const retrieved = cache.getResource(uri); + expect(retrieved).toBe(invocation2); + expect(retrieved?.timestamp.getTime()).toBe(2000); + }); + + it("should clear specific resource", () => { + const uri1 = "file:///test1.txt"; + const uri2 = "file:///test2.txt"; + cache.setResource(uri1, createResourceReadInvocation(uri1)); + cache.setResource(uri2, createResourceReadInvocation(uri2)); + + cache.clearResource(uri1); + + expect(cache.getResource(uri1)).toBeNull(); + expect(cache.getResource(uri2)).not.toBeNull(); + }); + + it("should handle clearing non-existent resource", () => { + expect(() => + cache.clearResource("file:///nonexistent.txt"), + ).not.toThrow(); + }); + }); + + describe("Resource template caching", () => { + it("should store and retrieve resource template content", () => { + const uriTemplate = "file:///{path}"; + const expandedUri = "file:///test.txt"; + const params = { path: "test.txt" }; + const invocation = createResourceTemplateReadInvocation( + uriTemplate, + expandedUri, + params, + ); + + cache.setResourceTemplate(uriTemplate, invocation); + const retrieved = cache.getResourceTemplate(uriTemplate); + + expect(retrieved).toBe(invocation); // Object identity preserved + expect(retrieved?.uriTemplate).toBe(uriTemplate); + expect(retrieved?.expandedUri).toBe(expandedUri); + expect(retrieved?.params).toEqual(params); + }); + + it("should return null for non-existent resource template", () => { + expect(cache.getResourceTemplate("file:///{path}")).toBeNull(); + }); + + it("should replace existing resource template content", () => { + const uriTemplate = "file:///{path}"; + const invocation1 = createResourceTemplateReadInvocation( + uriTemplate, + "file:///test1.txt", + { path: "test1.txt" }, + new Date(1000), + ); + const invocation2 = createResourceTemplateReadInvocation( + uriTemplate, + "file:///test2.txt", + { path: "test2.txt" }, + new Date(2000), + ); + + cache.setResourceTemplate(uriTemplate, invocation1); + cache.setResourceTemplate(uriTemplate, invocation2); + + const retrieved = cache.getResourceTemplate(uriTemplate); + expect(retrieved).toBe(invocation2); + expect(retrieved?.expandedUri).toBe("file:///test2.txt"); + }); + + it("should clear specific resource template", () => { + const template1 = "file:///{path1}"; + const template2 = "file:///{path2}"; + cache.setResourceTemplate( + template1, + createResourceTemplateReadInvocation(template1, "file:///test1.txt"), + ); + cache.setResourceTemplate( + template2, + createResourceTemplateReadInvocation(template2, "file:///test2.txt"), + ); + + cache.clearResourceTemplate(template1); + + expect(cache.getResourceTemplate(template1)).toBeNull(); + expect(cache.getResourceTemplate(template2)).not.toBeNull(); + }); + + it("should handle clearing non-existent resource template", () => { + expect(() => + cache.clearResourceTemplate("file:///{nonexistent}"), + ).not.toThrow(); + }); + }); + + describe("Prompt caching", () => { + it("should store and retrieve prompt content", () => { + const name = "testPrompt"; + const params = { city: "NYC" }; + const invocation = createPromptGetInvocation(name, params); + + cache.setPrompt(name, invocation); + const retrieved = cache.getPrompt(name); + + expect(retrieved).toBe(invocation); // Object identity preserved + expect(retrieved?.name).toBe(name); + expect(retrieved?.params).toEqual(params); + const messageContent = retrieved?.result.messages[0]?.content; + expect( + messageContent && "text" in messageContent + ? messageContent.text + : undefined, + ).toBe("Prompt content for testPrompt"); + }); + + it("should return null for non-existent prompt", () => { + expect(cache.getPrompt("nonexistentPrompt")).toBeNull(); + }); + + it("should replace existing prompt content", () => { + const name = "testPrompt"; + const invocation1 = createPromptGetInvocation( + name, + { city: "NYC" }, + new Date(1000), + ); + const invocation2 = createPromptGetInvocation( + name, + { city: "LA" }, + new Date(2000), + ); + + cache.setPrompt(name, invocation1); + cache.setPrompt(name, invocation2); + + const retrieved = cache.getPrompt(name); + expect(retrieved).toBe(invocation2); + expect(retrieved?.params?.city).toBe("LA"); + }); + + it("should clear specific prompt", () => { + const name1 = "prompt1"; + const name2 = "prompt2"; + cache.setPrompt(name1, createPromptGetInvocation(name1)); + cache.setPrompt(name2, createPromptGetInvocation(name2)); + + cache.clearPrompt(name1); + + expect(cache.getPrompt(name1)).toBeNull(); + expect(cache.getPrompt(name2)).not.toBeNull(); + }); + + it("should handle clearing non-existent prompt", () => { + expect(() => cache.clearPrompt("nonexistentPrompt")).not.toThrow(); + }); + }); + + describe("Tool call result caching", () => { + it("should store and retrieve successful tool call result", () => { + const toolName = "testTool"; + const params = { arg1: "value1" }; + const invocation = createToolCallInvocation(toolName, true, params); + + cache.setToolCallResult(toolName, invocation); + const retrieved = cache.getToolCallResult(toolName); + + expect(retrieved).toBe(invocation); // Object identity preserved + expect(retrieved?.toolName).toBe(toolName); + expect(retrieved?.success).toBe(true); + expect(retrieved?.result).not.toBeNull(); + const toolContent = retrieved?.result?.content[0]; + expect( + toolContent && "text" in toolContent ? toolContent.text : undefined, + ).toBe("Result from testTool"); + }); + + it("should store and retrieve failed tool call result", () => { + const toolName = "failingTool"; + const params = { arg1: "value1" }; + const invocation = createToolCallInvocation(toolName, false, params); + + cache.setToolCallResult(toolName, invocation); + const retrieved = cache.getToolCallResult(toolName); + + expect(retrieved).toBe(invocation); // Object identity preserved + expect(retrieved?.toolName).toBe(toolName); + expect(retrieved?.success).toBe(false); + expect(retrieved?.result).toBeNull(); + expect(retrieved?.error).toBe("Tool call failed"); + }); + + it("should return null for non-existent tool call result", () => { + expect(cache.getToolCallResult("nonexistentTool")).toBeNull(); + }); + + it("should replace existing tool call result", () => { + const toolName = "testTool"; + const invocation1 = createToolCallInvocation( + toolName, + true, + { arg1: "value1" }, + new Date(1000), + ); + const invocation2 = createToolCallInvocation( + toolName, + true, + { arg1: "value2" }, + new Date(2000), + ); + + cache.setToolCallResult(toolName, invocation1); + cache.setToolCallResult(toolName, invocation2); + + const retrieved = cache.getToolCallResult(toolName); + expect(retrieved).toBe(invocation2); + expect(retrieved?.params.arg1).toBe("value2"); + }); + + it("should clear specific tool call result", () => { + const tool1 = "tool1"; + const tool2 = "tool2"; + cache.setToolCallResult(tool1, createToolCallInvocation(tool1)); + cache.setToolCallResult(tool2, createToolCallInvocation(tool2)); + + cache.clearToolCallResult(tool1); + + expect(cache.getToolCallResult(tool1)).toBeNull(); + expect(cache.getToolCallResult(tool2)).not.toBeNull(); + }); + + it("should handle clearing non-existent tool call result", () => { + expect(() => cache.clearToolCallResult("nonexistentTool")).not.toThrow(); + }); + }); + + describe("clearAll", () => { + it("should clear all cached content", () => { + // Populate all caches + cache.setResource( + "file:///test.txt", + createResourceReadInvocation("file:///test.txt"), + ); + cache.setResourceTemplate( + "file:///{path}", + createResourceTemplateReadInvocation( + "file:///{path}", + "file:///test.txt", + ), + ); + cache.setPrompt("testPrompt", createPromptGetInvocation("testPrompt")); + cache.setToolCallResult("testTool", createToolCallInvocation("testTool")); + + cache.clearAll(); + + expect(cache.getResource("file:///test.txt")).toBeNull(); + expect(cache.getResourceTemplate("file:///{path}")).toBeNull(); + expect(cache.getPrompt("testPrompt")).toBeNull(); + expect(cache.getToolCallResult("testTool")).toBeNull(); + }); + + it("should handle clearAll on empty cache", () => { + expect(() => cache.clearAll()).not.toThrow(); + }); + }); + + describe("Type safety", () => { + it("should implement ReadWriteContentCache interface", () => { + const cache: ReadWriteContentCache = new ContentCache(); + expect(cache).toBeInstanceOf(ContentCache); + }); + + it("should be assignable to ReadOnlyContentCache", () => { + const cache: ReadOnlyContentCache = new ContentCache(); + expect(cache).toBeInstanceOf(ContentCache); + }); + + it("should maintain type safety for all cache operations", () => { + const uri = "file:///test.txt"; + const invocation = createResourceReadInvocation(uri); + + cache.setResource(uri, invocation); + const retrieved = cache.getResource(uri); + + // TypeScript should infer the correct types + if (retrieved) { + expect(typeof retrieved.uri).toBe("string"); + expect(retrieved.timestamp).toBeInstanceOf(Date); + expect(retrieved.result).toBeDefined(); + } + }); + }); + + describe("clearByUri", () => { + it("should clear regular resource by URI", () => { + const uri = "file:///test.txt"; + cache.setResource(uri, createResourceReadInvocation(uri)); + expect(cache.getResource(uri)).not.toBeNull(); + + cache.clearResourceAndResourceTemplate(uri); + expect(cache.getResource(uri)).toBeNull(); + }); + + it("should clear resource template with matching expandedUri", () => { + const uriTemplate = "file:///{path}"; + const expandedUri = "file:///test.txt"; + const params = { path: "test.txt" }; + cache.setResourceTemplate( + uriTemplate, + createResourceTemplateReadInvocation(uriTemplate, expandedUri, params), + ); + expect(cache.getResourceTemplate(uriTemplate)).not.toBeNull(); + + cache.clearResourceAndResourceTemplate(expandedUri); + expect(cache.getResourceTemplate(uriTemplate)).toBeNull(); + }); + + it("should clear both regular resource and resource template with same URI", () => { + const uri = "file:///test.txt"; + const uriTemplate = "file:///{path}"; + const params = { path: "test.txt" }; + + // Set both a regular resource and a resource template with the same expanded URI + cache.setResource(uri, createResourceReadInvocation(uri)); + cache.setResourceTemplate( + uriTemplate, + createResourceTemplateReadInvocation(uriTemplate, uri, params), + ); + + expect(cache.getResource(uri)).not.toBeNull(); + expect(cache.getResourceTemplate(uriTemplate)).not.toBeNull(); + + // clearByUri should clear both + cache.clearResourceAndResourceTemplate(uri); + + expect(cache.getResource(uri)).toBeNull(); + expect(cache.getResourceTemplate(uriTemplate)).toBeNull(); + }); + + it("should not clear resource template with different expandedUri", () => { + const uriTemplate = "file:///{path}"; + const expandedUri1 = "file:///test1.txt"; + const expandedUri2 = "file:///test2.txt"; + const params1 = { path: "test1.txt" }; + const params2 = { path: "test2.txt" }; + + cache.setResourceTemplate( + uriTemplate, + createResourceTemplateReadInvocation( + uriTemplate, + expandedUri1, + params1, + ), + ); + cache.setResourceTemplate( + "file:///{other}", + createResourceTemplateReadInvocation( + "file:///{other}", + expandedUri2, + params2, + ), + ); + + // Clear by first URI + cache.clearResourceAndResourceTemplate(expandedUri1); + + // First template should be cleared, second should remain + expect(cache.getResourceTemplate(uriTemplate)).toBeNull(); + expect(cache.getResourceTemplate("file:///{other}")).not.toBeNull(); + }); + + it("should handle clearing non-existent URI", () => { + expect(() => + cache.clearResourceAndResourceTemplate("file:///nonexistent.txt"), + ).not.toThrow(); + }); + }); + + describe("Edge cases", () => { + it("should handle multiple operations on the same entry", () => { + const uri = "file:///test.txt"; + const invocation1 = createResourceReadInvocation(uri, new Date(1000)); + const invocation2 = createResourceReadInvocation(uri, new Date(2000)); + const invocation3 = createResourceReadInvocation(uri, new Date(3000)); + + cache.setResource(uri, invocation1); + expect(cache.getResource(uri)).toBe(invocation1); + + cache.setResource(uri, invocation2); + expect(cache.getResource(uri)).toBe(invocation2); + + cache.clearResource(uri); + expect(cache.getResource(uri)).toBeNull(); + + cache.setResource(uri, invocation3); + expect(cache.getResource(uri)).toBe(invocation3); + }); + + it("should handle empty strings as keys", () => { + const invocation = createResourceReadInvocation(""); + cache.setResource("", invocation); + expect(cache.getResource("")).toBe(invocation); + }); + + it("should handle special characters in keys", () => { + const uri = "file:///test with spaces & special chars.txt"; + const invocation = createResourceReadInvocation(uri); + cache.setResource(uri, invocation); + expect(cache.getResource(uri)).toBe(invocation); + }); + }); +}); diff --git a/shared/mcp/contentCache.ts b/shared/mcp/contentCache.ts new file mode 100644 index 000000000..6d7480983 --- /dev/null +++ b/shared/mcp/contentCache.ts @@ -0,0 +1,217 @@ +import type { + ResourceReadInvocation, + ResourceTemplateReadInvocation, + PromptGetInvocation, + ToolCallInvocation, +} from "./types.js"; + +/** + * Read-only interface for accessing cached content. + * This interface is exposed to users of InspectorClient. + */ +export interface ReadOnlyContentCache { + /** + * Get cached resource content by URI + * @param uri - The URI of the resource + * @returns The cached invocation object or null if not cached + */ + getResource(uri: string): ResourceReadInvocation | null; + + /** + * Get cached resource template content by URI template + * @param uriTemplate - The URI template string (unique identifier) + * @returns The cached invocation object or null if not cached + */ + getResourceTemplate( + uriTemplate: string, + ): ResourceTemplateReadInvocation | null; + + /** + * Get cached prompt content by name + * @param name - The prompt name + * @returns The cached invocation object or null if not cached + */ + getPrompt(name: string): PromptGetInvocation | null; + + /** + * Get cached tool call result by tool name + * @param toolName - The tool name + * @returns The cached invocation object or null if not cached + */ + getToolCallResult(toolName: string): ToolCallInvocation | null; + + /** + * Clear cached content for a specific resource + * @param uri - The URI of the resource to clear + */ + clearResource(uri: string): void; + + /** + * Clear all cached content for a given URI. + * This clears both regular resources cached by URI and resource templates + * that have a matching expandedUri. + * @param uri - The URI to clear from all caches + */ + clearResourceAndResourceTemplate(uri: string): void; + + /** + * Clear cached content for a specific resource template + * @param uriTemplate - The URI template string to clear + */ + clearResourceTemplate(uriTemplate: string): void; + + /** + * Clear cached content for a specific prompt + * @param name - The prompt name to clear + */ + clearPrompt(name: string): void; + + /** + * Clear cached tool call result for a specific tool + * @param toolName - The tool name to clear + */ + clearToolCallResult(toolName: string): void; + + /** + * Clear all cached content + */ + clearAll(): void; +} + +/** + * Read-write interface for accessing and modifying cached content. + * This interface is used internally by InspectorClient. + */ +export interface ReadWriteContentCache extends ReadOnlyContentCache { + /** + * Store resource content in cache + * @param uri - The URI of the resource + * @param invocation - The invocation object to cache + */ + setResource(uri: string, invocation: ResourceReadInvocation): void; + + /** + * Store resource template content in cache + * @param uriTemplate - The URI template string (unique identifier) + * @param invocation - The invocation object to cache + */ + setResourceTemplate( + uriTemplate: string, + invocation: ResourceTemplateReadInvocation, + ): void; + + /** + * Store prompt content in cache + * @param name - The prompt name + * @param invocation - The invocation object to cache + */ + setPrompt(name: string, invocation: PromptGetInvocation): void; + + /** + * Store tool call result in cache + * @param toolName - The tool name + * @param invocation - The invocation object to cache + */ + setToolCallResult(toolName: string, invocation: ToolCallInvocation): void; +} + +/** + * ContentCache manages cached content for resources, resource templates, prompts, and tool calls. + * This class implements ReadWriteContentCache and can be exposed as ReadOnlyContentCache to users. + */ +export class ContentCache implements ReadWriteContentCache { + // Internal storage - all cached content managed by this single object + private resourceContentCache: Map = new Map(); // Keyed by URI + private resourceTemplateContentCache: Map< + string, + ResourceTemplateReadInvocation + > = new Map(); // Keyed by uriTemplate + private promptContentCache: Map = new Map(); + private toolCallResultCache: Map = new Map(); + + // Read-only getter methods + + getResource(uri: string): ResourceReadInvocation | null { + return this.resourceContentCache.get(uri) ?? null; + } + + getResourceTemplate( + uriTemplate: string, + ): ResourceTemplateReadInvocation | null { + return this.resourceTemplateContentCache.get(uriTemplate) ?? null; + } + + getPrompt(name: string): PromptGetInvocation | null { + return this.promptContentCache.get(name) ?? null; + } + + getToolCallResult(toolName: string): ToolCallInvocation | null { + return this.toolCallResultCache.get(toolName) ?? null; + } + + // Clear methods + + clearResource(uri: string): void { + this.resourceContentCache.delete(uri); + } + + /** + * Clear all cached content for a given URI. + * This clears both regular resources cached by URI and resource templates + * that have a matching expandedUri. + * @param uri - The URI to clear from all caches + */ + clearResourceAndResourceTemplate(uri: string): void { + // Clear regular resource cache + this.resourceContentCache.delete(uri); + // Clear any resource templates with matching expandedUri + for (const [ + uriTemplate, + invocation, + ] of this.resourceTemplateContentCache.entries()) { + if (invocation.expandedUri === uri) { + this.resourceTemplateContentCache.delete(uriTemplate); + } + } + } + + clearResourceTemplate(uriTemplate: string): void { + this.resourceTemplateContentCache.delete(uriTemplate); + } + + clearPrompt(name: string): void { + this.promptContentCache.delete(name); + } + + clearToolCallResult(toolName: string): void { + this.toolCallResultCache.delete(toolName); + } + + clearAll(): void { + this.resourceContentCache.clear(); + this.resourceTemplateContentCache.clear(); + this.promptContentCache.clear(); + this.toolCallResultCache.clear(); + } + + // Write methods (for internal use by InspectorClient) + + setResource(uri: string, invocation: ResourceReadInvocation): void { + this.resourceContentCache.set(uri, invocation); + } + + setResourceTemplate( + uriTemplate: string, + invocation: ResourceTemplateReadInvocation, + ): void { + this.resourceTemplateContentCache.set(uriTemplate, invocation); + } + + setPrompt(name: string, invocation: PromptGetInvocation): void { + this.promptContentCache.set(name, invocation); + } + + setToolCallResult(toolName: string, invocation: ToolCallInvocation): void { + this.toolCallResultCache.set(toolName, invocation); + } +} diff --git a/shared/mcp/index.ts b/shared/mcp/index.ts index 3d1910848..784e0790d 100644 --- a/shared/mcp/index.ts +++ b/shared/mcp/index.ts @@ -6,6 +6,13 @@ export type { InspectorClientOptions } from "./inspectorClient.js"; export { loadMcpServersConfig, argsToMcpServerConfig } from "./config.js"; +// Re-export ContentCache +export { + ContentCache, + type ReadOnlyContentCache, + type ReadWriteContentCache, +} from "./contentCache.js"; + // Re-export types used by consumers export type { // Config types From d4c2e5c698735584095ee6005344698ba6f91ab4 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Fri, 23 Jan 2026 15:00:07 -0800 Subject: [PATCH 35/44] Integrated content cache --- ...source-subscriptions-listchanged-design.md | 103 +---- shared/__tests__/inspectorClient.test.ts | 408 ++++++++++++++++++ shared/mcp/inspectorClient.ts | 83 ++++ 3 files changed, 505 insertions(+), 89 deletions(-) diff --git a/docs/resource-subscriptions-listchanged-design.md b/docs/resource-subscriptions-listchanged-design.md index f5ec148cb..82336b0f5 100644 --- a/docs/resource-subscriptions-listchanged-design.md +++ b/docs/resource-subscriptions-listchanged-design.md @@ -398,7 +398,7 @@ class InspectorClient { **Cache Storage:** -- Cache content is **automatically stored** when fetch methods are called (in Phase 2): +- Cache content is **automatically stored** when fetch methods are called: - `readResource(uri)` → stores via `this.cacheInternal.setResource(uri, invocation)` - `readResourceFromTemplate(uriTemplate, params)` → stores via `this.cacheInternal.setResourceTemplate(uriTemplate, invocation)` - `getPrompt(name, args)` → stores via `this.cacheInternal.setPrompt(name, invocation)` @@ -474,8 +474,8 @@ async readResourceFromTemplate( - Use SDK's `UriTemplate` class: `new UriTemplate(uriTemplate).expand(params)` 4. Always fetch fresh content: Call `this.readResource(expandedUri, metadata)` (InspectorClient method) → returns `ResourceReadInvocation` 5. Create invocation object: `const invocation: ResourceTemplateReadInvocation = { uriTemplate, expandedUri, result: readInvocation.result, timestamp: readInvocation.timestamp, params, metadata }` - 6. Store in cache: `this.cacheInternal.setResourceTemplate(uriTemplate, invocation)` (TODO: add in Phase 2) - 7. Dispatch `resourceTemplateContentChange` event (TODO: add in Phase 2) + 6. Store in cache: `this.cacheInternal.setResourceTemplate(uriTemplate, invocation)` + 7. Dispatch `resourceTemplateContentChange` event 8. Return the invocation object (same object that's in the cache) **Resource Matching Logic:** @@ -548,8 +548,8 @@ clearAllPromptContent(): void; 1. Convert args to strings (using existing `convertPromptArguments()`) 2. Always fetch fresh content: Call `client.getPrompt(name, stringArgs, metadata)` (SDK method) → returns `GetPromptResult` 3. Create invocation object: `const invocation: PromptGetInvocation = { result, timestamp: new Date(), name, params: stringArgs, metadata }` - 4. Store in cache: `this.cacheInternal.setPrompt(name, invocation)` (TODO: add in Phase 2) - 5. Dispatch `promptContentChange` event (TODO: add in Phase 2) + 4. Store in cache: `this.cacheInternal.setPrompt(name, invocation)` + 5. Dispatch `promptContentChange` event 6. Return the invocation object (same object that's in the cache) - `client.cache.getPrompt(name)` (ContentCache method): @@ -652,87 +652,12 @@ async callTool( ## Implementation Plan -### Phase 1: Integrate ContentCache into InspectorClient (Infrastructure Only) +**Note:** Phases 1 and 2 are complete: -**Note:** The `ContentCache` module has been implemented and tested. It provides `ReadOnlyContentCache` and `ReadWriteContentCache` interfaces, and the `ContentCache` class with get/set/clear methods for all cache types. +- **Phase 1:** ContentCache integrated into InspectorClient (infrastructure only) +- **Phase 2:** All caching types implemented (resources, templates, prompts, tool results) with event dispatching -**Goal:** Add ContentCache to InspectorClient without changing existing behavior. - -**Deliverables:** - -1. Import `ContentCache` and `ReadOnlyContentCache` from `./contentCache.js` in `InspectorClient` -2. Import invocation types (`ResourceReadInvocation`, `ResourceTemplateReadInvocation`, `PromptGetInvocation`, `ToolCallInvocation`) from `./types.js` in `InspectorClient` -3. Add `private cacheInternal: ContentCache` property -4. Add `public readonly cache: ReadOnlyContentCache` property -5. Initialize cache in constructor -6. Clear all cache maps on disconnect (in `disconnect()` method) - -**Testing:** - -- Verify `client.cache` is accessible and returns `null` for all getters initially -- Verify cache is cleared when `disconnect()` is called -- Verify no breaking changes to existing API -- All existing tests pass (no regressions) - -**Acceptance Criteria:** - -- `client.cache` is accessible and functional -- Cache is cleared on disconnect -- No breaking changes to existing API -- All existing tests pass - -**Rationale:** Separating infrastructure from functionality allows validation that the integration doesn't break anything before adding caching behavior. - ---- - -### Phase 2: Implement All Caching Types - -**Goal:** Add caching to all fetch methods (resources, templates, prompts, tool results) simultaneously. - -**Deliverables:** - -1. Modify `readResource()` to: - - Keep existing behavior (always fetch fresh) - - Store in cache: `this.cacheInternal.setResource(uri, { result, timestamp })` - - Dispatch `resourceContentChange` event -2. Modify `readResourceFromTemplate()` to: - - Store in cache: `this.cacheInternal.setResourceTemplate(uriTemplate, invocation)` - - Dispatch `resourceTemplateContentChange` event -3. Modify `getPrompt()` to: - - Store in cache: `this.cacheInternal.setPrompt(name, invocation)` - - Dispatch `promptContentChange` event -4. Modify `callTool()` to: - - On success: Store in cache: `this.cacheInternal.setToolCallResult(name, invocation)` (invocation with `success: true`) - - On error: Store in cache: `this.cacheInternal.setToolCallResult(name, invocation)` (invocation with `success: false` and error) - - Dispatch `toolCallResultChange` event -5. Add new event types: - - `resourceContentChange` - - `resourceTemplateContentChange` - - `promptContentChange` - - `toolCallResultChange` - -**Testing:** - -- Test that each fetch method stores content in cache -- Test that `client.cache.get*()` methods return cached content -- Test that events are dispatched with correct detail structure -- Test that cache persists across multiple calls -- Test that subsequent calls replace cache entries -- Test error handling (tool call failures) - -**Acceptance Criteria:** - -- All fetch methods continue to work as before (no breaking changes) -- Content is stored in cache after each fetch operation -- Cache getters return cached content correctly -- Events are dispatched with correct detail structure -- All existing tests pass - -**Rationale:** Implementing all cache types together is efficient since they follow the same pattern. The cache module is already tested, so this phase focuses on integration. - ---- - -### Phase 3: Configuration and Subscription Infrastructure +### Phase 1: Configuration and Subscription Infrastructure **Goal:** Add configuration options and subscription state management (no handlers yet). @@ -765,7 +690,7 @@ async callTool( --- -### Phase 4: ListChanged Notification Handlers +### Phase 2: ListChanged Notification Handlers **Goal:** Add handlers for listChanged notifications that reload lists and preserve cache. @@ -852,11 +777,11 @@ async callTool( - Events are dispatched correctly - Configuration controls handler setup -**Rationale:** This phase depends on Phase 2 (caching) to test cache preservation behavior. The cache infrastructure is already in place, so this focuses on notification handling. +**Rationale:** This phase depends on the completed caching implementation to test cache preservation behavior. The cache infrastructure is already in place, so this focuses on notification handling. --- -### Phase 5: Resource Subscriptions +### Phase 3: Resource Subscriptions **Goal:** Add subscribe/unsubscribe methods and handle resource updated notifications. @@ -902,11 +827,11 @@ async callTool( - Graceful handling of unsupported servers - No breaking changes to existing API -**Rationale:** This phase depends on Phase 2 (resource caching) for cache clearing functionality. The subscription infrastructure from Phase 3 is already in place. +**Rationale:** This phase depends on the completed resource caching implementation for cache clearing functionality. The subscription infrastructure from Phase 1 is already in place. --- -### Phase 6: Integration Testing and Documentation +### Phase 4: Integration Testing and Documentation **Goal:** Comprehensive testing, edge case handling, and documentation updates. diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index 094314536..bea55b31f 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -1627,4 +1627,412 @@ describe("InspectorClient", () => { await server.stop(); }); }); + + describe("ContentCache integration", () => { + it("should expose cache property that returns null for all getters initially", async () => { + const client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + // Cache should be accessible + expect(client.cache).toBeDefined(); + + // All getters should return null initially + expect(client.cache.getResource("file:///test.txt")).toBeNull(); + expect(client.cache.getResourceTemplate("file:///{path}")).toBeNull(); + expect(client.cache.getPrompt("testPrompt")).toBeNull(); + expect(client.cache.getToolCallResult("testTool")).toBeNull(); + + await client.disconnect(); + }); + + it("should clear cache when disconnect() is called", async () => { + const client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: true, + }, + ); + + await client.connect(); + + // Verify cache is accessible + expect(client.cache).toBeDefined(); + + // Populate cache by calling fetch methods + const resources = await client.listResources(); + let resourceUri: string | undefined; + if (resources.length > 0 && resources[0]) { + resourceUri = resources[0].uri; + await client.readResource(resourceUri); + expect(client.cache.getResource(resourceUri)).not.toBeNull(); + } + + const tools = await client.listTools(); + let toolName: string | undefined; + if (tools.length > 0 && tools[0]) { + toolName = tools[0].name; + await client.callTool(toolName, {}); + expect(client.cache.getToolCallResult(toolName)).not.toBeNull(); + } + + const prompts = await client.listPrompts(); + let promptName: string | undefined; + if (prompts.length > 0 && prompts[0]) { + promptName = prompts[0].name; + await client.getPrompt(promptName); + expect(client.cache.getPrompt(promptName)).not.toBeNull(); + } + + // Disconnect should clear cache + await client.disconnect(); + + // After disconnect, cache should be cleared + if (resourceUri) { + expect(client.cache.getResource(resourceUri)).toBeNull(); + } + if (toolName) { + expect(client.cache.getToolCallResult(toolName)).toBeNull(); + } + if (promptName) { + expect(client.cache.getPrompt(promptName)).toBeNull(); + } + }); + + it("should not break existing API", async () => { + const client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + + // Verify existing properties and methods still work + expect(client.getStatus()).toBe("disconnected"); + expect(client.getTools()).toEqual([]); + expect(client.getResources()).toEqual([]); + expect(client.getPrompts()).toEqual([]); + + await client.connect(); + expect(client.getStatus()).toBe("connected"); + + await client.disconnect(); + expect(client.getStatus()).toBe("disconnected"); + }); + + it("should cache resource content and dispatch event when readResource is called", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + await client.connect(); + + const uri = "file:///test.txt"; + let eventReceived = false; + let eventDetail: any = null; + + client.addEventListener( + "resourceContentChange", + ((event: CustomEvent) => { + eventReceived = true; + eventDetail = event.detail; + }) as EventListener, + { once: true }, + ); + + const invocation = await client.readResource(uri); + + // Verify cache + const cached = client.cache.getResource(uri); + expect(cached).not.toBeNull(); + expect(cached).toBe(invocation); // Object identity preserved + + // Verify event was dispatched + expect(eventReceived).toBe(true); + expect(eventDetail.uri).toBe(uri); + expect(eventDetail.content).toBe(invocation); + expect(eventDetail.timestamp).toBeInstanceOf(Date); + + await client.disconnect(); + }); + + it("should cache resource template content and dispatch event when readResourceFromTemplate is called", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: true, // Auto-fetch to populate templates + }, + ); + await client.connect(); + + const template = client.getResourceTemplates()[0]; + if (!template) { + throw new Error("No resource templates available"); + } + + const params = { path: "test.txt" }; + let eventReceived = false; + let eventDetail: any = null; + + client.addEventListener( + "resourceTemplateContentChange", + ((event: CustomEvent) => { + eventReceived = true; + eventDetail = event.detail; + }) as EventListener, + { once: true }, + ); + + const invocation = await client.readResourceFromTemplate( + template.uriTemplate, + params, + ); + + // Verify cache + const cached = client.cache.getResourceTemplate(template.uriTemplate); + expect(cached).not.toBeNull(); + expect(cached).toBe(invocation); // Object identity preserved + + // Verify event was dispatched + expect(eventReceived).toBe(true); + expect(eventDetail.uriTemplate).toBe(template.uriTemplate); + expect(eventDetail.content).toBe(invocation); + expect(eventDetail.params).toEqual(params); + expect(eventDetail.timestamp).toBeInstanceOf(Date); + + await client.disconnect(); + }); + + it("should cache prompt content and dispatch event when getPrompt is called", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: true, // Auto-fetch to populate prompts + }, + ); + await client.connect(); + + const prompt = client.getPrompts()[0]; + if (!prompt) { + throw new Error("No prompts available"); + } + + let eventReceived = false; + let eventDetail: any = null; + + client.addEventListener( + "promptContentChange", + ((event: CustomEvent) => { + eventReceived = true; + eventDetail = event.detail; + }) as EventListener, + { once: true }, + ); + + const invocation = await client.getPrompt(prompt.name); + + // Verify cache + const cached = client.cache.getPrompt(prompt.name); + expect(cached).not.toBeNull(); + expect(cached).toBe(invocation); // Object identity preserved + + // Verify event was dispatched + expect(eventReceived).toBe(true); + expect(eventDetail.name).toBe(prompt.name); + expect(eventDetail.content).toBe(invocation); + expect(eventDetail.timestamp).toBeInstanceOf(Date); + + await client.disconnect(); + }); + + it("should cache successful tool call result and dispatch event", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: true, // Auto-fetch to populate tools + }, + ); + await client.connect(); + + const tool = client.getTools().find((t) => t.name === "echo"); + if (!tool) { + throw new Error("Echo tool not available"); + } + + let eventReceived = false; + let eventDetail: any = null; + + client.addEventListener( + "toolCallResultChange", + ((event: CustomEvent) => { + eventReceived = true; + eventDetail = event.detail; + }) as EventListener, + { once: true }, + ); + + const invocation = await client.callTool("echo", { message: "test" }); + + // Verify cache + const cached = client.cache.getToolCallResult("echo"); + expect(cached).not.toBeNull(); + expect(cached).toBe(invocation); // Object identity preserved + expect(cached?.success).toBe(true); + + // Verify event was dispatched + expect(eventReceived).toBe(true); + expect(eventDetail.toolName).toBe("echo"); + expect(eventDetail.success).toBe(true); + expect(eventDetail.result).not.toBeNull(); + expect(eventDetail.timestamp).toBeInstanceOf(Date); + + await client.disconnect(); + }); + + it("should cache failed tool call result and dispatch event", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + await client.connect(); + + let eventReceived = false; + let eventDetail: any = null; + + client.addEventListener( + "toolCallResultChange", + ((event: CustomEvent) => { + eventReceived = true; + eventDetail = event.detail; + }) as EventListener, + { once: true }, + ); + + const invocation = await client.callTool("nonexistent-tool", {}); + + // Verify cache + const cached = client.cache.getToolCallResult("nonexistent-tool"); + expect(cached).not.toBeNull(); + expect(cached).toBe(invocation); // Object identity preserved + // Note: The tool call might succeed if the server has a catch-all handler + // So we just verify the cache stores the result correctly + expect(cached?.toolName).toBe("nonexistent-tool"); + expect(cached?.params).toEqual({}); + + // Verify event was dispatched + expect(eventReceived).toBe(true); + expect(eventDetail.toolName).toBe("nonexistent-tool"); + expect(eventDetail.params).toEqual({}); + expect(eventDetail.timestamp).toBeInstanceOf(Date); + // Note: success/error depends on server behavior + + await client.disconnect(); + }); + + it("should replace cache entry on subsequent calls", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + await client.connect(); + + const uri = "file:///test.txt"; + + // First call + const invocation1 = await client.readResource(uri); + const cached1 = client.cache.getResource(uri); + expect(cached1).toBe(invocation1); + + // Wait a bit to ensure different timestamp + await new Promise((resolve) => setTimeout(resolve, 10)); + + // Second call should replace cache + const invocation2 = await client.readResource(uri); + const cached2 = client.cache.getResource(uri); + expect(cached2).toBe(invocation2); + expect(cached2).not.toBe(invocation1); // Different object + expect(cached2?.timestamp.getTime()).toBeGreaterThan( + invocation1.timestamp.getTime(), + ); + + await client.disconnect(); + }); + + it("should persist cache across multiple calls", async () => { + client = new InspectorClient( + { + type: "stdio", + command: serverCommand.command, + args: serverCommand.args, + }, + { + autoFetchServerContents: false, + }, + ); + await client.connect(); + + const uri = "file:///test.txt"; + + // First call + const invocation1 = await client.readResource(uri); + const cached1 = client.cache.getResource(uri); + expect(cached1).toBe(invocation1); + + // Second call to same resource + const invocation2 = await client.readResource(uri); + const cached2 = client.cache.getResource(uri); + expect(cached2).toBe(invocation2); + + // Cache should still be accessible + const cached3 = client.cache.getResource(uri); + expect(cached3).toBe(invocation2); + + await client.disconnect(); + }); + }); }); diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index 4274b9ad8..9f47210b1 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -54,6 +54,7 @@ import { convertPromptArguments, } from "../json/jsonUtils.js"; import { UriTemplate } from "@modelcontextprotocol/sdk/shared/uriTemplate.js"; +import { ContentCache, type ReadOnlyContentCache } from "./contentCache.js"; export interface InspectorClientOptions { /** * Client identity (name and version) @@ -248,12 +249,18 @@ export class InspectorClient extends EventTarget { private pendingElicitations: ElicitationCreateMessage[] = []; // Roots (undefined means roots capability not enabled, empty array means enabled but no roots) private roots: Root[] | undefined; + // Content cache + private cacheInternal: ContentCache; + public readonly cache: ReadOnlyContentCache; constructor( private transportConfig: MCPServerConfig, options: InspectorClientOptions = {}, ) { super(); + // Initialize content cache + this.cacheInternal = new ContentCache(); + this.cache = this.cacheInternal; this.maxMessages = options.maxMessages ?? 1000; this.maxStderrLogEvents = options.maxStderrLogEvents ?? 1000; this.maxFetchRequests = options.maxFetchRequests ?? 1000; @@ -517,6 +524,8 @@ export class InspectorClient extends EventTarget { this.prompts = []; this.pendingSamples = []; this.pendingElicitations = []; + // Clear all cached content on disconnect + this.cacheInternal.clearAll(); this.capabilities = undefined; this.serverInfo = undefined; this.instructions = undefined; @@ -812,6 +821,22 @@ export class InspectorClient extends EventTarget { metadata, }; + // Store in cache + this.cacheInternal.setToolCallResult(name, invocation); + // Dispatch event + this.dispatchEvent( + new CustomEvent("toolCallResultChange", { + detail: { + toolName: name, + params: args, + result: invocation.result, + timestamp, + success: true, + metadata, + }, + }), + ); + return invocation; } catch (error) { // Merge general metadata with tool-specific metadata for error case @@ -839,6 +864,23 @@ export class InspectorClient extends EventTarget { metadata, }; + // Store in cache (even on error) + this.cacheInternal.setToolCallResult(name, invocation); + // Dispatch event + this.dispatchEvent( + new CustomEvent("toolCallResultChange", { + detail: { + toolName: name, + params: args, + result: null, + timestamp, + success: false, + error: invocation.error, + metadata, + }, + }), + ); + return invocation; } } @@ -889,6 +931,18 @@ export class InspectorClient extends EventTarget { uri, metadata, }; + // Store in cache + this.cacheInternal.setResource(uri, invocation); + // Dispatch event + this.dispatchEvent( + new CustomEvent("resourceContentChange", { + detail: { + uri, + content: invocation, + timestamp: invocation.timestamp, + }, + }), + ); return invocation; } catch (error) { throw new Error( @@ -958,6 +1012,21 @@ export class InspectorClient extends EventTarget { metadata, }; + // Store in cache + this.cacheInternal.setResourceTemplate(uriTemplateString, invocation); + // Dispatch event + this.dispatchEvent( + new CustomEvent("resourceTemplateContentChange", { + detail: { + uriTemplate: uriTemplateString, + expandedUri, + content: invocation, + params, + timestamp: invocation.timestamp, + }, + }), + ); + return invocation; } @@ -1043,6 +1112,20 @@ export class InspectorClient extends EventTarget { metadata, }; + // Store in cache + this.cacheInternal.setPrompt(name, invocation); + // Dispatch event + this.dispatchEvent( + new CustomEvent("promptContentChange", { + detail: { + name, + content: invocation, + params: invocation.params, + timestamp: invocation.timestamp, + }, + }), + ); + return invocation; } catch (error) { throw new Error( From 3d3d0736a2ed6d7f51139953e1a733959c7e7825 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Fri, 23 Jan 2026 22:30:51 -0800 Subject: [PATCH 36/44] Implement resource subscriptions and listChanged notifications in InspectorClient and required support in test framework --- ...source-subscriptions-listchanged-design.md | 935 ------------ docs/tui-web-client-feature-gaps.md | 81 +- shared/__tests__/inspectorClient.test.ts | 1334 +++++++++++++++++ shared/mcp/inspectorClient.ts | 299 +++- shared/test/composable-test-server.ts | 111 +- shared/test/test-server-fixtures.ts | 419 +++++- shared/test/test-server-stdio.ts | 2 - 7 files changed, 2173 insertions(+), 1008 deletions(-) delete mode 100644 docs/resource-subscriptions-listchanged-design.md diff --git a/docs/resource-subscriptions-listchanged-design.md b/docs/resource-subscriptions-listchanged-design.md deleted file mode 100644 index 82336b0f5..000000000 --- a/docs/resource-subscriptions-listchanged-design.md +++ /dev/null @@ -1,935 +0,0 @@ -# Resource Subscriptions and ListChanged Notifications Design - -## Overview - -This document outlines the design for adding support for: - -1. **Resource subscriptions** - Subscribe/unsubscribe to resources and handle `notifications/resources/updated` notifications -2. **ListChanged notifications** - Handle `notifications/tools/list_changed`, `notifications/resources/list_changed`, and `notifications/prompts/list_changed` -3. **Resource content caching** - Maintain loaded resource content in InspectorClient state -4. **Prompt content caching** - Maintain loaded prompt content and parameters in InspectorClient state -5. **Tool call result caching** - Maintain the most recent call result for each tool in InspectorClient state - -## Goals - -- Enable InspectorClient to support resource subscriptions (subscribe/unsubscribe) -- Support all listChanged notification types with configurable enable/disable -- Cache loaded resource content to avoid re-fetching when displaying -- Cache loaded prompt content and parameters to avoid re-fetching when displaying -- Cache tool call results to enable UI state persistence (especially useful for React apps) -- Auto-reload lists when listChanged notifications are received -- Auto-reload subscribed resources when resource updated notifications are received -- Emit appropriate events for UI updates - -## Design Decisions - -### 1. Configuration Options - -Add to `InspectorClientOptions`: - -```typescript -export interface InspectorClientOptions { - // ... existing options ... - - /** - * Whether to enable listChanged notification handlers (default: true) - * If enabled, InspectorClient will automatically reload lists when notifications are received - */ - listChangedNotifications?: { - tools?: boolean; // default: true - resources?: boolean; // default: true - prompts?: boolean; // default: true - }; -} -``` - -**Rationale:** - -- Grouped under `listChangedNotifications` object for clarity -- Individual flags allow fine-grained control -- Default to `true` for all to match web client behavior - -### 2. Resource Content Caching - -**Current State:** - -- `InspectorClient` stores `resources: Resource[]` (full resource objects with `uri`, `name`, `description`, `mimeType`, etc.) -- Content is fetched on-demand via `readResource()` but not cached - -**Proposed State:** - -- Keep resource descriptors separate from cached content -- Maintain `resources: Resource[]` for server-provided descriptors -- Add separate cache structure for loaded content - -**Invocation Types (defined in `shared/mcp/types.ts`, returned from methods and cached):** - -```typescript -// For regular resources (cached by URI) -interface ResourceReadInvocation { - result: ReadResourceResult; // The full SDK response object - timestamp: Date; // When the call was made - uri: string; // The URI that was read (request parameter) - metadata?: Record; // Optional metadata that was passed -} - -// For resource templates (cached by uriTemplate - the unique ID of the template) -interface ResourceTemplateReadInvocation { - uriTemplate: string; // The URI template string (unique ID) - expandedUri: string; // The expanded URI after template expansion - result: ReadResourceResult; // The full SDK response object - timestamp: Date; // When the call was made - params: Record; // The parameters used to expand the template (request parameters) - metadata?: Record; // Optional metadata that was passed -} - -// For prompts (cached by prompt name) -interface PromptGetInvocation { - result: GetPromptResult; // The full SDK response object - timestamp: Date; // When the call was made - name: string; // The prompt name (request parameter) - params?: Record; // The parameters used when fetching the prompt (request parameters) - metadata?: Record; // Optional metadata that was passed -} - -// For tool calls (cached by tool name) -interface ToolCallInvocation { - toolName: string; // The tool that was called (request parameter) - params: Record; // The arguments passed to the tool (request parameters) - result: CallToolResult | null; // The full SDK response object (null on error) - timestamp: Date; // When the call was made - success: boolean; // true if call succeeded, false if it threw - error?: string; // Error message if success === false - metadata?: Record; // Optional metadata that was passed -} -``` - -**Rationale:** - -- **Invocation objects** represent the complete call: request parameters + response + metadata -- These objects are **returned from InspectorClient methods** (e.g., `readResource()` returns `ResourceReadInvocation`) -- The **same object** is stored in the cache and returned from cache getters -- Keep SDK response objects intact (`ReadResourceResult`, `GetPromptResult`, `CallToolResult`) rather than breaking them apart -- Add our metadata fields (`timestamp`, request params, `uriTemplate`, `expandedUri`, `success`, `error`) alongside the SDK result -- Preserves all SDK fields and makes it easier to maintain if SDK types change -- Clear separation between SDK data and our cache metadata -- For tool calls, `result` is `null` on error to distinguish from successful calls with empty results -- **Consistency**: The object returned from `client.readResource(uri)` is the same object you'd get from `client.cache.getResource(uri)` (if cached) -- **Type Location**: These types are defined in `shared/mcp/types.ts` since they're shared between `InspectorClient` and `ContentCache` (following the established pattern where shared MCP types live in `types.ts`) - -**Storage:** - -- `private resources: Resource[]` - Server-provided resource descriptors (unchanged) -- Cache is accessed via `client.cache.getResource(uri)` for regular resources -- Cache is accessed via `client.cache.getResourceTemplate(uriTemplate)` for template-based resources -- The `ContentCache` object internally manages: - - Regular resource content (keyed by URI) - - Resource template content (keyed by uriTemplate - the unique template ID) - - Prompt content - - Tool call results -- Cache is independent of descriptors - can be cleared without affecting server state -- Regular resources and resource templates are cached separately (different maps, different keys) - -**Benefits of Separate Cache Structure:** - -- **True cache semantics** - Can clear cache independently of descriptors without affecting server state -- **Memory management** - Can implement TTL, LRU eviction, size limits in the future without touching descriptors -- **Separation of concerns** - Descriptors (`resources[]`) are server state, cache (`resourceContentCache`) is client state -- **Flexibility** - Can cache multiple versions or implement cache policies without modifying descriptor structure -- **Clear API** - `getResources()` returns descriptors, `client.cache.getResource()` returns cached content -- **Cache invalidation** - Can selectively clear cache entries without reloading descriptors -- **List reload behavior** - When descriptors reload, cache is preserved for existing items, cleaned up for removed items -- Avoid re-fetching when switching between resources in UI -- Enable offline viewing of previously loaded resources -- Support resource update notifications by updating cached content - -### 2b. Prompt Content Caching - -**Current State:** - -- `InspectorClient` stores `prompts: Prompt[]` (full prompt objects with `name`, `description`, `arguments`, etc.) -- Content is fetched on-demand via `getPrompt()` but not cached - -**Proposed State:** - -- Keep prompt descriptors separate from cached content -- Maintain `prompts: Prompt[]` for server-provided descriptors -- Add separate cache structure for loaded content - -**Cache Structure:** - -```typescript -interface PromptGetInvocation { - result: GetPromptResult; // The full SDK response object - timestamp: Date; // When the call was made - name: string; // The prompt name (request parameter) - params?: Record; // The parameters used when fetching the prompt (request parameters) - metadata?: Record; // Optional metadata that was passed -} -``` - -**Rationale:** - -- Keep SDK response object intact (`GetPromptResult`) rather than extracting `messages` -- Add our metadata fields (`timestamp`, `params`) alongside the SDK result -- Preserves all SDK fields including optional `description` and `_meta` - -**Storage:** - -- `private prompts: Prompt[]` - Server-provided prompt descriptors (unchanged) -- Cache is accessed via `client.cache.getPrompt(name)` - single integrated cache object -- The `ContentCache` object internally manages all cached content types -- Cache is independent of descriptors - can be cleared without affecting server state - -**Benefits:** - -- Avoid re-fetching when switching between prompts in UI -- Enable offline viewing of previously loaded prompts -- Track which parameters were used for parameterized prompts - -### 3. ListChanged Notification Handlers - -**Implementation:** - -- Set up notification handlers in `connect()` method based on config -- Each handler: - 1. Calls the appropriate `list*()` method to reload the list - 2. Updates internal state - 3. Dispatches appropriate `*Change` event - -**Handlers needed:** - -- `notifications/tools/list_changed` → reload tools list -- `notifications/resources/list_changed` → reload resources list and resource templates list (preserve cached content for existing items) -- `notifications/prompts/list_changed` → reload prompts list - -**Code structure:** - -```typescript -// In connect() method -if ( - this.listChangedNotifications?.tools !== false && - this.capabilities?.tools?.listChanged -) { - this.client.setNotificationHandler( - ToolListChangedNotificationSchema, - async () => { - await this.reloadToolsList(); - }, - ); -} - -if ( - this.listChangedNotifications?.resources !== false && - this.capabilities?.resources?.listChanged -) { - this.client.setNotificationHandler( - ResourceListChangedNotificationSchema, - async () => { - await this.reloadResourcesList(); // Preserves cached content - }, - ); -} -``` - -**Resource list reload behavior:** - -- When `notifications/resources/list_changed` is received, reload the resource descriptors list (`this.resources`) -- For each resource in the new list, check if we have cached content for that URI using `this.cache.getResource(uri)` -- Preserve cached content for resources that still exist in the updated list -- Remove cached content for resources that no longer exist in the list (cache cleanup via `this.cache.clearResource(uri)`) -- Note: Resource template cache is NOT affected by resource list changes - templates are cached separately and independently -- Note: Cache is independent - `client.cache.clearAll()` doesn't affect descriptors, and reloading descriptors doesn't clear template cache - -### 4. Resource Subscription Methods - -**Note:** Resource subscriptions are server capability-driven. The client checks if the server supports subscriptions (`capabilities.resources.subscribe === true`) and then the client can call subscribe/unsubscribe methods if desired. There is no client config option for this - it's purely based on server capability. - -**Public API:** - -```typescript -/** - * Subscribe to a resource to receive update notifications - * @param uri - The URI of the resource to subscribe to - * @throws Error if client is not connected or server doesn't support subscriptions - */ -async subscribeToResource(uri: string): Promise; - -/** - * Unsubscribe from a resource - * @param uri - The URI of the resource to unsubscribe from - * @throws Error if client is not connected - */ -async unsubscribeFromResource(uri: string): Promise; - -/** - * Get list of currently subscribed resource URIs - */ -getSubscribedResources(): string[]; - -/** - * Check if a resource is currently subscribed - */ -isSubscribedToResource(uri: string): boolean; - -/** - * Check if the server supports resource subscriptions - */ -supportsResourceSubscriptions(): boolean; -``` - -**Internal State:** - -- `private subscribedResources: Set = new Set()` - -**Implementation:** - -- Check server capability: `this.capabilities?.resources?.subscribe === true` -- Call `client.request({ method: "resources/subscribe", params: { uri } })` -- Call `client.request({ method: "resources/unsubscribe", params: { uri } })` -- Track subscriptions in `Set` -- Clear subscriptions on disconnect - -### 5. Resource Updated Notification Handler - -**Handler:** - -- Set up in `connect()` if server supports resource subscriptions (`capabilities.resources.subscribe === true`) -- Handle `notifications/resources/updated` notification - -**Behavior:** - -1. Check if the resource URI is in `this.subscribedResources` -2. If subscribed: - - Clear the resource from cache using `this.cacheInternal.clearResourceAndResourceTemplate(uri)` - - This method clears both regular resources cached by URI and resource templates with matching `expandedUri` - - Dispatch `resourceUpdated` event to notify UI that the resource has changed -3. If not subscribed: - - Ignore the notification (no action needed) - -**Event:** - -```typescript -// New event type -interface ResourceUpdatedEvent extends CustomEvent { - detail: { - uri: string; - }; -} -``` - -**Note:** The cache's `clearResourceAndResourceTemplate()` method handles clearing both regular resources and resource templates that match the URI, so the handler doesn't need to check multiple cache types. - -### 6. Cache API Design - -**Design: Separate Cache Module with Read/Write and Read-Only Interfaces** - -The cache is implemented as a separate module with two interfaces: - -1. **ReadWriteContentCache** - Full access (used internally by InspectorClient) -2. **ReadOnlyContentCache** - Read-only access (exposed to users of InspectorClient) - -This design provides: - -- **Better encapsulation** - InspectorClient doesn't need to know about internal Map structures -- **Separation of concerns** - Cache logic is isolated in its own module -- **Type safety** - Clear distinction between internal and external cache access -- **Testability** - Cache can be tested independently -- **Future extensibility** - Cache can evolve without affecting InspectorClient internals - -**API Structure:** - -```typescript -// Cache object exposed as property -// Getter methods (read-only access to cached content) -client.cache.getResource(uri); -client.cache.getResourceTemplate(uriTemplate); -client.cache.getPrompt(name); -client.cache.getToolCallResult(toolName); - -// Clear methods (remove cached content) -client.cache.clearResource(uri); -client.cache.clearResourceAndResourceTemplate(uri); // Clears both regular resources and resource templates with matching expandedUri -client.cache.clearResourceTemplate(uriTemplate); -client.cache.clearPrompt(name); -client.cache.clearToolCallResult(toolName); -client.cache.clearAll(); - -// Fetch methods remain on InspectorClient (always fetch fresh, cache automatically) -// These methods automatically store results in the cache - no explicit setter methods needed -client.readResource(uri); // → stores in cache.resourceContentCache -client.readResourceFromTemplate(name, params); // → stores in cache.resourceTemplateContentCache -client.getPrompt(name, args); // → stores in cache.promptContentCache -client.callTool(name, args); // → stores in cache.toolCallResultCache -``` - -**Benefits:** - -- **Clear separation** - Cache operations are explicitly namespaced -- **Better organization** - All cache operations in one place -- **Easier to extend** - Can add cache configuration, statistics, policies to cache object -- **Type safety** - Cache object can have its own type/interface -- **Future features** - Cache object can have methods like `configure()`, `getStats()`, `setMaxSize()`, etc. -- **Clearer intent** - `client.cache.getResource()` makes it obvious this is cache access -- **Single integrated cache** - All cached content (resources, prompts, tool results) is managed by one cache object - -**Implementation:** - -```typescript -class InspectorClient { - // Server-provided descriptors - private resources: Resource[] = []; - private prompts: Prompt[] = []; - private tools: Tool[] = []; - - // Single integrated cache object - private cacheInternal: ContentCache; // Full access for InspectorClient - public readonly cache: ReadOnlyContentCache; // Read-only access for users - - constructor(...) { - // Create integrated cache object - this.cacheInternal = new ContentCache(); - this.cache = this.cacheInternal; // Expose read-only interface - } -} -``` - -**Note:** The `ContentCache` class is already implemented in `shared/mcp/contentCache.ts` with all getter, setter, and clear methods for resources, resource templates, prompts, and tool call results. - -**Cache Storage:** - -- Cache content is **automatically stored** when fetch methods are called: - - `readResource(uri)` → stores via `this.cacheInternal.setResource(uri, invocation)` - - `readResourceFromTemplate(uriTemplate, params)` → stores via `this.cacheInternal.setResourceTemplate(uriTemplate, invocation)` - - `getPrompt(name, args)` → stores via `this.cacheInternal.setPrompt(name, invocation)` - - `callTool(name, args)` → stores via `this.cacheInternal.setToolCallResult(name, invocation)` -- The cache object provides **read-only access** via getter methods and **clear methods** for cache management -- InspectorClient uses `cacheInternal` (full access) to store content, and exposes `cache` (read-only) to users - -**Usage Pattern:** - -```typescript -// Check cache first -const cached = client.cache.getResource(uri); -if (cached) { - // Use cached content - cached is a ResourceReadInvocation - // Access content via cached.result.contents - // Same object that would be returned from readResource() -} else { - // Fetch fresh - automatically caches the result - const invocation = await client.readResource(uri); - // invocation is a ResourceReadInvocation (same object now in cache) - // Access content via invocation.result.contents - // client.cache.getResource(uri) would now return the same invocation object -} -``` - -### 7. Resource Content Management - -**Methods:** - -```typescript -/** - * Read a resource and cache its content - * @param uri - The URI of the resource to read - * @param metadata - Optional metadata to include in the request - * @returns Resource read invocation (includes result, timestamp, request params) - */ -async readResource( - uri: string, - metadata?: Record, -): Promise; - -/** - * Read a resource from a template by expanding the template URI with parameters - * This encapsulates the business logic of template expansion and associates the - * loaded resource with its template in InspectorClient state - * @param uriTemplate - The URI template string (unique identifier for the template) - * @param params - Parameters to fill in the template variables - * @param metadata - Optional metadata to include in the request - * @returns The resource content along with expanded URI and uriTemplate - * @throws Error if template is not found or URI expansion fails - */ -async readResourceFromTemplate( - uriTemplate: string, - params: Record, - metadata?: Record, -): Promise; - -``` - -**Implementation:** - -- `readResource()`: - 1. Always fetch fresh content: Call `client.readResource(uri, metadata)` (SDK method) → returns `ReadResourceResult` - 2. Create invocation object: `const invocation: ResourceReadInvocation = { result, timestamp: new Date(), uri, metadata }` - 3. Store in cache: `this.cacheInternal.setResource(uri, invocation)` - 4. Dispatch `resourceContentChange` event - 5. Return the invocation object (same object that's in the cache) - -- `readResourceFromTemplate()`: - 1. Look up template in `resourceTemplates` by `uriTemplate` (the unique identifier) - 2. If not found, throw error - 3. Expand the template's `uriTemplate` using the provided params - - Use SDK's `UriTemplate` class: `new UriTemplate(uriTemplate).expand(params)` - 4. Always fetch fresh content: Call `this.readResource(expandedUri, metadata)` (InspectorClient method) → returns `ResourceReadInvocation` - 5. Create invocation object: `const invocation: ResourceTemplateReadInvocation = { uriTemplate, expandedUri, result: readInvocation.result, timestamp: readInvocation.timestamp, params, metadata }` - 6. Store in cache: `this.cacheInternal.setResourceTemplate(uriTemplate, invocation)` - 7. Dispatch `resourceTemplateContentChange` event - 8. Return the invocation object (same object that's in the cache) - -**Resource Matching Logic:** - -- **Regular resources** are cached by URI: `this.cache.resourceContentCache.set(uri, content)` -- **Resource templates** are cached by uriTemplate (the unique template ID): `this.cache.resourceTemplateContentCache.set(uriTemplate, content)` -- These are separate cache maps - no sharing between regular resources and template-based resources -- `client.cache.getResource(uri)` looks up in `resourceContentCache` by URI -- `client.cache.getResourceTemplate(uriTemplate)` looks up in `resourceTemplateContentCache` by uriTemplate (the unique template ID) -- If the same resource is loaded both ways (direct URI and via template), they are cached separately: - - Direct: `readResource("file:///test.txt")` → cached in `resourceContentCache` by URI - - Template: `readResourceFromTemplate("file", {path: "test.txt"})` → cached in `resourceTemplateContentCache` by uriTemplate - -**Benefits:** - -- Encapsulates template expansion logic in InspectorClient -- Allows InspectorClient to track which resources came from which templates -- Simplifies UI code - no need to manually expand templates -- Enables future features like template-based resource management - -- `client.cache.getResource(uri)` (ContentCache method): - - Accesses `this.resourceContentCache` map by URI - - Returns cached `ResourceReadInvocation` object (same type as returned from `readResource()`), `null` if not cached - - Caller should check for `null` and call `client.readResource()` if fresh content is needed - - Access resource contents via `cached.result.contents` - - **Note**: The returned object is the same object that was returned from `readResource()` (object identity preserved) - -- `client.cache.getResourceTemplate(uriTemplate)` (ContentCache method): - - Looks up directly in `this.resourceTemplateContentCache` (owned by ContentCache) by uriTemplate - - Returns cached `ResourceTemplateReadInvocation` object (same type as returned from `readResourceFromTemplate()`), `null` if not cached - - Access resource contents via `cached.result.contents` - - Returns cached template content with params if found, `null` if not cached - - Note: Only one cached result per uriTemplate (most recent params combination replaces previous) - - **Note**: The returned object is the same object that was returned from `readResourceFromTemplate()` (object identity preserved) - -### 7. Prompt Content Management - -**Methods:** - -```typescript -/** - * Get a prompt by name with optional arguments - * @param name - Prompt name - * @param args - Optional prompt arguments - * @param metadata - Optional metadata to include in the request - * @returns Prompt get invocation (includes result, timestamp, request params) - */ -async getPrompt( - name: string, - args?: Record, - metadata?: Record, -): Promise; - - -/** - * Clear cached content for a prompt - * @param name - The name of the prompt - */ -clearPromptContent(name: string): void; - -/** - * Clear all cached prompt content - */ -clearAllPromptContent(): void; -``` - -**Implementation:** - -- `getPrompt()`: - 1. Convert args to strings (using existing `convertPromptArguments()`) - 2. Always fetch fresh content: Call `client.getPrompt(name, stringArgs, metadata)` (SDK method) → returns `GetPromptResult` - 3. Create invocation object: `const invocation: PromptGetInvocation = { result, timestamp: new Date(), name, params: stringArgs, metadata }` - 4. Store in cache: `this.cacheInternal.setPrompt(name, invocation)` - 5. Dispatch `promptContentChange` event - 6. Return the invocation object (same object that's in the cache) - -- `client.cache.getPrompt(name)` (ContentCache method): - - Accesses `this.promptContentCache` map (owned by ContentCache) by prompt name - - Returns cached `PromptGetInvocation` object (same type as returned from `getPrompt()`), `null` if not cached - - Returns the most recent params combination that was used (only one cached per prompt) - - Caller should check for `null` and call `client.getPrompt()` if fresh content is needed - - Access prompt messages via `cached.result.messages`, description via `cached.result.description` - - **Note**: The returned object is the same object that was returned from `getPrompt()` (object identity preserved) - -**Prompt Matching Logic:** - -- Prompts are matched by name only (one cached result per prompt) -- `client.cache.getPrompt(name)` returns the most recent content that was loaded for that prompt (with whatever params were used) -- If `getPrompt("weather", {city: "NYC"})` is called, then `getPrompt("weather", {city: "LA"})` is called: - - Both calls fetch fresh content - - The second call replaces the cached content (we cache only the most recent params combination per prompt) -- `client.cache.getPrompt("weather")` will return the content from the most recent call (with `params: {city: "LA"}`) - -**Note:** We cache only the most recent params combination per prompt. Each call to `getPrompt()` fetches fresh content and replaces the cache. - -### 8. Tool Call Result Management - -**Methods:** - -```typescript -/** - * Call a tool by name with arguments - * @param name - Tool name - * @param args - Tool arguments - * @param metadata - Optional metadata to include in the request - * @returns Tool call invocation (includes result, timestamp, request params, success/error) - */ -async callTool( - name: string, - args: Record, - generalMetadata?: Record, - toolSpecificMetadata?: Record, -): Promise; - -// Cache access via client.cache object: -// client.cache.getToolCallResult(toolName) - Returns ToolCallInvocation | null (same object as returned from callTool()) -// client.cache.clearToolCallResult(toolName) - Clears cached result for a tool -// client.cache.clearAll() - Clears all cached content -``` - -**Implementation:** - -- `callTool()`: - 1. Call `client.callTool(name, args, metadata)` (SDK method) → returns `CallToolResult` on success, throws on error - 2. On success: - - Create invocation object: `const invocation: ToolCallInvocation = { toolName: name, params: args, result, timestamp: new Date(), success: true, metadata }` - - Store in cache: `this.cacheInternal.setToolCallResult(name, invocation)` - - Dispatch `toolCallResultChange` event - - Return the invocation object (same object that's in the cache) - 3. On error: - - Create invocation object: `const invocation: ToolCallInvocation = { toolName: name, params: args, result: null, timestamp: new Date(), success: false, error: error.message, metadata }` - - Store in cache: `this.cacheInternal.setToolCallResult(name, invocation)` - - Dispatch `toolCallResultChange` event - - Return the invocation object (same object that's in the cache) - -- `client.cache.getToolCallResult(toolName)`: - - Look up in `toolCallResultCache` map by tool name - - Return cached `ToolCallInvocation` object (same type as returned from `callTool()`), `null` if not cached - - Caller should check for `null` and call `client.callTool()` if fresh result is needed - - Access tool result content via `cached.result?.content` (if `success === true`) - - **Note**: The returned object is the same object that was returned from `callTool()` (object identity preserved) - -**Tool Call Result Matching:** - -- Results are keyed by tool name only (one result per tool) -- Each new call to a tool replaces the previous cached result -- This matches typical UI patterns where users view one tool result at a time -- If needed, future enhancement could cache multiple param combinations per tool - -**Note:** Tool call results are cached automatically when `callTool()` is invoked. There's no separate "cache" step - the result is always stored after each call. - -### 9. Event Types - -**New Events:** - -- `resourceContentChange` - Fired when regular resource content is loaded or updated - - Detail: `{ uri: string, content: {...}, timestamp: Date }` -- `resourceTemplateContentChange` - Fired when resource template content is loaded or updated - - Detail: `{ uriTemplate: string, expandedUri: string, content: {...}, params: Record, timestamp: Date }` -- `resourceUpdated` - Fired when a subscribed resource is updated (but not yet reloaded) - - Detail: `{ uri: string }` -- `resourceSubscriptionsChange` - Fired when subscription set changes - - Detail: `string[]` (array of subscribed URIs) -- `promptContentChange` - Fired when prompt content is loaded or updated - - Detail: `{ name: string, content: {...}, params?: Record, timestamp: Date }` -- `toolCallResultChange` - Fired when a tool call completes (success or failure) - - Detail: `{ toolName: string, params: Record, result: {...}, timestamp: Date, success: boolean, error?: string }` - -**Existing Events (enhanced):** - -- `toolsChange` - Already exists, will be fired on listChanged -- `resourcesChange` - Already exists, will be fired on listChanged (preserves cached content) -- `promptsChange` - Already exists, will be fired on listChanged (preserves cached content) - -## Implementation Plan - -**Note:** Phases 1 and 2 are complete: - -- **Phase 1:** ContentCache integrated into InspectorClient (infrastructure only) -- **Phase 2:** All caching types implemented (resources, templates, prompts, tool results) with event dispatching - -### Phase 1: Configuration and Subscription Infrastructure - -**Goal:** Add configuration options and subscription state management (no handlers yet). - -**Deliverables:** - -1. Add `listChangedNotifications` option to `InspectorClientOptions` (tools, resources, prompts) -2. Add `private subscribedResources: Set` to InspectorClient -3. Add helper methods: - - `getSubscribedResources(): string[]` - - `isSubscribedToResource(uri: string): boolean` - - `supportsResourceSubscriptions(): boolean` -4. Initialize options in constructor -5. Clear subscriptions on disconnect - -**Testing:** - -- Test that `listChangedNotifications` options are initialized correctly -- Test that subscription helper methods work -- Test that subscriptions are cleared on disconnect -- Test that `supportsResourceSubscriptions()` checks server capability - -**Acceptance Criteria:** - -- Configuration options are accessible and initialized correctly -- Subscription state is managed correctly -- Helper methods return correct values -- No breaking changes to existing API - -**Rationale:** Setting up infrastructure before implementing features allows for cleaner separation of concerns and easier testing. - ---- - -### Phase 2: ListChanged Notification Handlers - -**Goal:** Add handlers for listChanged notifications that reload lists and preserve cache. - -**Deliverables:** - -1. Modify existing `list*()` methods to: - - Update internal state (`this.tools`, `this.resources`, `this.resourceTemplates`, `this.prompts`) - - Clean up cache entries for items no longer in the list - - Dispatch change events (`toolsChange`, `resourcesChange`, `resourceTemplatesChange`, `promptsChange`) - - Return the fetched arrays (maintain existing API) -2. Set up notification handlers in `connect()` based on config: - - `notifications/tools/list_changed` → Call `await this.listTools()` (which handles state update, cache cleanup, and event dispatch) - - `notifications/resources/list_changed` → Call both `await this.listResources()` and `await this.listResourceTemplates()` (both handle state update, cache cleanup, and event dispatch) - - `notifications/prompts/list_changed` → Call `await this.listPrompts()` (which handles state update, cache cleanup, and event dispatch) - - Note: Resource templates are part of the resources capability, so `notifications/resources/list_changed` should reload both resources and resource templates -3. Import notification schemas from SDK: - - `ToolListChangedNotificationSchema` - - `ResourceListChangedNotificationSchema` - - `PromptListChangedNotificationSchema` - -**Implementation Details:** - -- Modify `listResources()` to: - 1. Fetch from server: `const newResources = await this.client.listResources(params)` - 2. Compare `newResources` with `this.resources` to find removed URIs - 3. For each removed URI, call `this.cacheInternal.clearResource(uri)` (cache cleanup) - 4. Update `this.resources = newResources` - 5. Dispatch `resourcesChange` event - 6. Return `newResources` (maintain existing API) - 7. Note: Cached content for existing resources is automatically preserved (cache is not cleared unless explicitly removed) -- Modify `listPrompts()` to: - 1. Fetch from server: `const newPrompts = await this.client.listPrompts(params)` - 2. Compare `newPrompts` with `this.prompts` to find removed prompt names - 3. For each removed prompt name, call `this.cacheInternal.clearPrompt(name)` (cache cleanup) - 4. Update `this.prompts = newPrompts` - 5. Dispatch `promptsChange` event - 6. Return `newPrompts` (maintain existing API) - 7. Note: Cached content for existing prompts is automatically preserved -- Modify `listResourceTemplates()` to: - 1. Fetch from server: `const newTemplates = await this.client.listResourceTemplates(params)` - 2. Compare `newTemplates` with `this.resourceTemplates` to find removed `uriTemplate` values - 3. For each removed `uriTemplate`, call `this.cacheInternal.clearResourceTemplate(uriTemplate)` (cache cleanup) - 4. Update `this.resourceTemplates = newTemplates` - 5. Dispatch `resourceTemplatesChange` event - 6. Return `newTemplates` (maintain existing API) - 7. Note: Cached content for existing templates is automatically preserved (cache is not cleared unless explicitly removed) -- Modify `listTools()` to: - 1. Fetch from server: `const newTools = await this.client.listTools(params)` - 2. Update `this.tools = newTools` - 3. Dispatch `toolsChange` event - 4. Return `newTools` (maintain existing API) - 5. Note: Tool call result cache is not cleaned up (results persist even if tool is removed) -- Notification handlers are thin wrappers that just call the `list*()` methods -- Update `fetchServerContents()` to remove duplicate state update and event dispatch logic: - - Change `this.resources = await this.listResources(); this.dispatchEvent(...)` to just `await this.listResources()` - - Change `this.resourceTemplates = await this.listResourceTemplates(); this.dispatchEvent(...)` to just `await this.listResourceTemplates()` - - Change `this.prompts = await this.listPrompts(); this.dispatchEvent(...)` to just `await this.listPrompts()` - - Change `this.tools = await this.listTools(); this.dispatchEvent(...)` to just `await this.listTools()` - - The list methods now handle state updates and event dispatching internally - -**Testing:** - -- Test that `listResources()` updates `this.resources` and dispatches `resourcesChange` event -- Test that `listResources()` cleans up cache for removed resources -- Test that `listResources()` preserves cache for existing resources -- Test that `listResourceTemplates()` updates `this.resourceTemplates` and dispatches `resourceTemplatesChange` event -- Test that `listResourceTemplates()` cleans up cache for removed templates (by `uriTemplate`) -- Test that `listResourceTemplates()` preserves cache for existing templates -- Test that `listPrompts()` updates `this.prompts` and dispatches `promptsChange` event -- Test that `listPrompts()` cleans up cache for removed prompts -- Test that `listPrompts()` preserves cache for existing prompts -- Test that `listTools()` updates `this.tools` and dispatches `toolsChange` event -- Test that notification handlers call the correct `list*()` methods -- Test that handlers respect configuration (can be disabled) -- Test that `list*()` methods still return arrays (backward compatibility) -- Test with test server that sends listChanged notifications - -**Acceptance Criteria:** - -- All three notification types are handled -- Lists are reloaded when notifications are received -- Cached content is preserved for existing items -- Cached content is cleared for removed items -- Events are dispatched correctly -- Configuration controls handler setup - -**Rationale:** This phase depends on the completed caching implementation to test cache preservation behavior. The cache infrastructure is already in place, so this focuses on notification handling. - ---- - -### Phase 3: Resource Subscriptions - -**Goal:** Add subscribe/unsubscribe methods and handle resource updated notifications. - -**Deliverables:** - -1. Implement `subscribeToResource(uri: string)`: - - Check server capability: `this.capabilities?.resources?.subscribe === true` - - Call `client.request({ method: "resources/subscribe", params: { uri } })` - - Add to `subscribedResources` Set - - Dispatch `resourceSubscriptionsChange` event -2. Implement `unsubscribeFromResource(uri: string)`: - - Call `client.request({ method: "resources/unsubscribe", params: { uri } })` - - Remove from `subscribedResources` Set - - Dispatch `resourceSubscriptionsChange` event -3. Set up `notifications/resources/updated` handler in `connect()` (only if server supports subscriptions) -4. Handler logic: - - Check if resource is subscribed - - If subscribed: Clear cache using `this.cacheInternal.clearResourceAndResourceTemplate(uri)` (clears both regular resources and resource templates with matching expandedUri) - - Dispatch `resourceUpdated` event to notify UI -5. Add event types: - - `resourceSubscriptionsChange` - - `resourceUpdated` - -**Testing:** - -- Test that `subscribeToResource()` calls SDK method correctly -- Test that `unsubscribeFromResource()` calls SDK method correctly -- Test that subscription state is tracked correctly -- Test that `resourceSubscriptionsChange` event is dispatched -- Test that handler only processes subscribed resources -- Test that cached resources are cleared from cache (both regular resources and resource templates with matching expandedUri) -- Test that `resourceUpdated` event is dispatched when resource is cleared -- Test that subscription fails gracefully if server doesn't support it -- Test with test server that supports subscriptions and sends resource updated notifications - -**Acceptance Criteria:** - -- Subscribe/unsubscribe methods work correctly -- Subscription state is tracked -- Resource updated notifications are handled correctly -- Cached resources are cleared from cache (both regular resources and resource templates) -- Events are dispatched correctly -- Graceful handling of unsupported servers -- No breaking changes to existing API - -**Rationale:** This phase depends on the completed resource caching implementation for cache clearing functionality. The subscription infrastructure from Phase 1 is already in place. - ---- - -### Phase 4: Integration Testing and Documentation - -**Goal:** Comprehensive testing, edge case handling, and documentation updates. - -**Deliverables:** - -1. Integration tests covering: - - Full workflow: subscribe → receive update → cache cleared - - ListChanged notifications for all types - - Cache persistence across list reloads - - Cache clearing on disconnect - - Multiple resource subscriptions - - Error scenarios (subscription failures, cache failures) -2. Edge case testing: - - Empty lists - - Rapid notifications - - Disconnect during operations - - Server capability changes -3. Update documentation: - - API documentation for new methods - - Event documentation for new events - - Usage examples - - Update feature gaps document -4. Code review and cleanup - -**Testing:** - -- Run full test suite -- Test with real MCP servers (if available) -- Test edge cases -- Performance testing (if applicable) - -**Acceptance Criteria:** - -- All tests pass -- Documentation is complete and accurate -- No regressions in existing functionality -- Code is ready for review -- Edge cases are handled gracefully - -**Rationale:** Final validation phase ensures everything works together correctly and documentation is complete. - -## Questions and Considerations - -### Q1: Should we auto-subscribe to resources when they're loaded? - -**Current thinking:** No, subscriptions should be explicit. User/UI decides when to subscribe. - -### Q2: Should we clear resource content on disconnect? - -**Decision:** Yes, clear all cached content and subscriptions on disconnect to avoid stale data. This matches the behavior of clearing other lists (tools, resources, prompts) on disconnect. - -### Q3: Should we support partial resource updates? - -**Current thinking:** For now, reload entire resource content. Future enhancement could support partial updates if the protocol supports it. - -### Q4: How should we handle resource content size limits? - -**Current thinking:** No limits initially. If needed, add `maxResourceContentSize` option later. - -### Q5: Should `readResource()` always fetch fresh content or use cache? - -**Decision:** Always fetch fresh content. Cache is for display convenience. UX should check `client.cache.getResource()` first, and only call `client.readResource()` if fresh content is needed. - -### Q7: Should we emit events for listChanged even if auto-reload fails? - -**Current thinking:** Yes, emit the event but log the error. This allows UI to show that a change occurred even if reload failed. - -### Q8: How should we handle multiple param combinations for the same prompt? - -**Decision:** Cache only the most recent params combination per prompt. If a prompt is called with different params, replace the cached content. This keeps the implementation simple and matches typical UI usage patterns where users view one prompt at a time. - -### Q7: Should we maintain subscription state across reconnects? - -**Decision:** No, clear on disconnect. User/UI can re-subscribe after reconnect if needed. - -## Open Questions - -1. **Resource content invalidation:** Should we have a TTL for cached content? Or rely on subscriptions/notifications? -2. **Batch operations:** Should we support subscribing/unsubscribing to multiple resources at once? -3. **Error handling:** How should we handle subscription failures? Retry? Queue for later? -4. **Resource templates:** Should resource template list changes trigger resource list reload? (Probably yes) -5. **Resource list changed behavior:** When resources list changes, should we preserve cached content for resources that still exist? **Decision:** Yes, preserve cached content for existing resources, only clear content for resources that no longer exist in the list. - -## Dependencies - -- SDK types for notification schemas: - - `ToolListChangedNotificationSchema` - - `ResourceListChangedNotificationSchema` - - `PromptListChangedNotificationSchema` - - `ResourceUpdatedNotificationSchema` -- SDK methods: - - `resources/subscribe` - - `resources/unsubscribe` - -## Backward Compatibility - -- Existing event types remain unchanged -- New functionality is opt-in via configuration (defaults to enabled) -- No breaking changes to existing API -- Resource subscriptions are capability-driven (no config needed - client checks server capability) -- Resource, prompt, and tool call result caching is transparent - existing code continues to work, caching is automatic diff --git a/docs/tui-web-client-feature-gaps.md b/docs/tui-web-client-feature-gaps.md index 39d97c456..1f82a0ede 100644 --- a/docs/tui-web-client-feature-gaps.md +++ b/docs/tui-web-client-feature-gaps.md @@ -15,20 +15,20 @@ This document details the feature gaps between the TUI (Terminal User Interface) | Read resource content | ✅ | ✅ | ✅ | - | | List resource templates | ✅ | ✅ | ✅ | - | | Read templated resources | ✅ | ✅ | ✅ | - | -| Resource subscriptions | ❌ | ✅ | ❌ | Medium | -| Resources listChanged notifications | ❌ | ✅ | ❌ | Medium | +| Resource subscriptions | ✅ | ✅ | ❌ | Medium | +| Resources listChanged notifications | ✅ | ✅ | ❌ | Medium | | Pagination (resources) | ❌ | ✅ | ❌ | Low | | Pagination (resource templates) | ❌ | ✅ | ❌ | Low | | **Prompts** | | List prompts | ✅ | ✅ | ✅ | - | | Get prompt (no params) | ✅ | ✅ | ✅ | - | | Get prompt (with params) | ✅ | ✅ | ✅ | - | -| Prompts listChanged notifications | ❌ | ✅ | ❌ | Medium | +| Prompts listChanged notifications | ✅ | ✅ | ❌ | Medium | | Pagination (prompts) | ❌ | ✅ | ❌ | Low | | **Tools** | | List tools | ✅ | ✅ | ✅ | - | | Call tool | ✅ | ✅ | ✅ | - | -| Tools listChanged notifications | ❌ | ✅ | ❌ | Medium | +| Tools listChanged notifications | ✅ | ✅ | ❌ | Medium | | Tool call progress tracking | ❌ | ✅ | ❌ | Medium | | Pagination (tools) | ❌ | ✅ | ❌ | Low | | **Roots** | @@ -64,12 +64,29 @@ This document details the feature gaps between the TUI (Terminal User Interface) - ❌ No subscription state management - ❌ No UI for subscribe/unsubscribe actions +**InspectorClient Status:** + +- ✅ `subscribeToResource(uri)` method - **COMPLETED** +- ✅ `unsubscribeFromResource(uri)` method - **COMPLETED** +- ✅ Subscription state tracking - **COMPLETED** (`getSubscribedResources()`, `isSubscribedToResource()`) +- ✅ Handler for `notifications/resources/updated` - **COMPLETED** +- ✅ `resourceSubscriptionsChange` event - **COMPLETED** +- ✅ `resourceUpdated` event - **COMPLETED** +- ✅ Cache clearing on resource updates - **COMPLETED** (clears both regular resources and resource templates with matching expandedUri) + +**TUI Status:** + +- ❌ No UI for resource subscriptions +- ❌ No subscription state management in UI +- ❌ No UI for subscribe/unsubscribe actions +- ❌ No handling of resource update notifications in UI + **Implementation Requirements:** -- Add `subscribeResource(uri)` and `unsubscribeResource(uri)` methods to `InspectorClient` -- Add subscription state tracking in `InspectorClient` -- Add UI in TUI `ResourcesTab` for subscribe/unsubscribe actions -- Handle resource update notifications for subscribed resources +- ✅ Add `subscribeToResource(uri)` and `unsubscribeFromResource(uri)` methods to `InspectorClient` - **COMPLETED** +- ✅ Add subscription state tracking in `InspectorClient` - **COMPLETED** +- ❌ Add UI in TUI `ResourcesTab` for subscribe/unsubscribe actions +- ✅ Handle resource update notifications for subscribed resources - **COMPLETED** (in InspectorClient) **Code References:** @@ -255,21 +272,26 @@ MCP servers can send `listChanged` notifications when the list of tools, resourc **InspectorClient Status:** -- ❌ No notification handlers for `listChanged` notifications -- ❌ No automatic list refresh on `listChanged` notifications -- ❌ TODO comment in `fetchServerContents()` mentions adding support for `listChanged` notifications +- ✅ Notification handlers for `notifications/tools/list_changed` - **COMPLETED** +- ✅ Notification handlers for `notifications/resources/list_changed` - **COMPLETED** (reloads both resources and resource templates) +- ✅ Notification handlers for `notifications/prompts/list_changed` - **COMPLETED** +- ✅ Automatic list refresh on `listChanged` notifications - **COMPLETED** +- ✅ Configurable via `listChangedNotifications` option - **COMPLETED** (tools, resources, prompts) +- ✅ Cache preservation for existing items - **COMPLETED** +- ✅ Cache cleanup for removed items - **COMPLETED** +- ✅ Event dispatching (`toolsChange`, `resourcesChange`, `resourceTemplatesChange`, `promptsChange`) - **COMPLETED** **TUI Status:** -- ❌ No notification handlers for `listChanged` notifications -- ❌ No automatic list refresh on `listChanged` notifications +- ❌ No UI handling for `listChanged` notifications (though InspectorClient handles them automatically) +- ❌ No UI indication when lists are auto-refreshed **Implementation Requirements:** -- Add notification handlers in `InspectorClient.connect()` for `listChanged` notifications -- When a `listChanged` notification is received, automatically call the corresponding `list*()` method -- Dispatch events to notify UI of list changes -- Add UI in TUI to handle and display these notifications (optional, but useful for debugging) +- ✅ Add notification handlers in `InspectorClient.connect()` for `listChanged` notifications - **COMPLETED** +- ✅ When a `listChanged` notification is received, automatically call the corresponding `list*()` method - **COMPLETED** +- ✅ Dispatch events to notify UI of list changes - **COMPLETED** +- ❌ Add UI in TUI to handle and display these notifications (optional, but useful for debugging) **Code References:** @@ -555,8 +577,15 @@ Based on this analysis, `InspectorClient` needs the following additions: - ✅ `readResource(uri, metadata?)` - Already exists - ✅ `listResourceTemplates()` - Already exists - ✅ Resource template `list` callback support - Already exists (via `listResources()`) - - ❌ `subscribeResource(uri)` - Needs to be added - - ❌ `unsubscribeResource(uri)` - Needs to be added + - ✅ `subscribeToResource(uri)` - **COMPLETED** + - ✅ `unsubscribeFromResource(uri)` - **COMPLETED** + - ✅ `getSubscribedResources()` - **COMPLETED** + - ✅ `isSubscribedToResource(uri)` - **COMPLETED** + - ✅ `supportsResourceSubscriptions()` - **COMPLETED** + - ✅ Resource content caching - **COMPLETED** (via `client.cache.getResource()`) + - ✅ Resource template content caching - **COMPLETED** (via `client.cache.getResourceTemplate()`) + - ✅ Prompt content caching - **COMPLETED** (via `client.cache.getPrompt()`) + - ✅ Tool call result caching - **COMPLETED** (via `client.cache.getToolCallResult()`) 2. **Sampling Support**: - ✅ `getPendingSamples()` - Already exists @@ -586,10 +615,12 @@ Based on this analysis, `InspectorClient` needs the following additions: - ❌ Token injection into headers 6. **ListChanged Notifications**: - - ❌ Notification handlers for `notifications/tools/list_changed` - Needs to be added - - ❌ Notification handlers for `notifications/resources/list_changed` - Needs to be added - - ❌ Notification handlers for `notifications/prompts/list_changed` - Needs to be added - - ❌ Auto-refresh lists when notifications received - Needs to be added + - ✅ Notification handlers for `notifications/tools/list_changed` - **COMPLETED** + - ✅ Notification handlers for `notifications/resources/list_changed` - **COMPLETED** + - ✅ Notification handlers for `notifications/prompts/list_changed` - **COMPLETED** + - ✅ Auto-refresh lists when notifications received - **COMPLETED** + - ✅ Configurable via `listChangedNotifications` option - **COMPLETED** + - ✅ Cache preservation and cleanup - **COMPLETED** 7. **Roots Support**: - ✅ `getRoots()` method - Already exists @@ -616,12 +647,12 @@ Based on this analysis, `InspectorClient` needs the following additions: ## Notes - **HTTP Request Tracking**: `InspectorClient` tracks HTTP requests for SSE and streamable-http transports via `getFetchRequests()`. TUI displays these requests in a `RequestsTab`. Web client does not currently display HTTP request tracking, though the underlying `InspectorClient` supports it. This is a TUI advantage, not a gap. -- **Resource Subscriptions**: Web client supports this, but TUI does not. `InspectorClient` does not yet support resource subscriptions. +- **Resource Subscriptions**: Web client supports this, but TUI does not. `InspectorClient` now fully supports resource subscriptions with `subscribeToResource()`, `unsubscribeFromResource()`, and automatic handling of `notifications/resources/updated` notifications. - **OAuth**: Web client has full OAuth support. TUI needs browser-based OAuth flow with localhost callback server. `InspectorClient` does not yet support OAuth. - **Completions**: `InspectorClient` has full completion support via `getCompletions()`. Web client uses this for resource template forms and prompt parameter forms. TUI has both resource template forms and prompt parameter forms, but completion support is still needed to provide autocomplete suggestions. - **Sampling**: `InspectorClient` has full sampling support. Web client UI displays and handles sampling requests. TUI needs UI to display and handle sampling requests. - **Elicitation**: `InspectorClient` has full elicitation support. Web client UI displays and handles elicitation requests. TUI needs UI to display and handle elicitation requests. -- **ListChanged Notifications**: Web client handles `listChanged` notifications for tools, resources, and prompts, automatically refreshing lists when notifications are received. `InspectorClient` does not yet support these notifications. TUI also does not support them. +- **ListChanged Notifications**: Web client handles `listChanged` notifications for tools, resources, and prompts, automatically refreshing lists when notifications are received. `InspectorClient` now fully supports these notifications with automatic list refresh, cache preservation/cleanup, and configurable handlers. TUI automatically benefits from this functionality but doesn't have UI to display notification events. - **Roots**: `InspectorClient` has full roots support with `getRoots()` and `setRoots()` methods, handler for `roots/list` requests, and notification support. Web client has a `RootsTab` UI for managing roots. TUI does not yet have UI for managing roots. - **Pagination**: Web client supports cursor-based pagination for all list methods (tools, resources, resource templates, prompts), tracking `nextCursor` state and making multiple requests to fetch all items. `InspectorClient` currently returns arrays directly without exposing pagination. TUI does not support pagination. - **Progress Tracking**: Web client supports progress tracking for tool calls by generating `progressToken` values, setting up `onprogress` callbacks, and displaying progress notifications. `InspectorClient` does not yet support progress tracking. TUI does not support progress tracking. diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index bea55b31f..e9c331d23 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -18,6 +18,10 @@ import { createSendNotificationTool, createListRootsTool, createArgsPrompt, + createArchitectureResource, + createTestCwdResource, + createSimplePrompt, + createUserResourceTemplate, } from "../test/test-server-fixtures.js"; import type { MessageEntry } from "../mcp/types.js"; import type { @@ -2035,4 +2039,1334 @@ describe("InspectorClient", () => { await client.disconnect(); }); }); + + describe("Resource Subscriptions", () => { + it("should initialize subscribedResources as empty Set", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + expect(client.getSubscribedResources()).toEqual([]); + expect(client.isSubscribedToResource("test://uri")).toBe(false); + + await client.disconnect(); + await server.stop(); + }); + + it("should clear subscriptions on disconnect", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Manually add a subscription (Phase 3 will add proper methods) + (client as any).subscribedResources.add("test://uri1"); + (client as any).subscribedResources.add("test://uri2"); + + expect(client.getSubscribedResources()).toHaveLength(2); + + await client.disconnect(); + + // Subscriptions should be cleared + expect(client.getSubscribedResources()).toEqual([]); + + await server.stop(); + }); + + it("should check server capability for resource subscriptions support", async () => { + // Server without resource subscriptions + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Server doesn't support resource subscriptions + expect(client.supportsResourceSubscriptions()).toBe(false); + + await client.disconnect(); + await server.stop(); + + // Server with resource subscriptions (we'll need to add this capability in test server) + // For now, just test that the method exists and checks capabilities + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + // Note: We'd need to add subscribe capability to test server config + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Still false because test server doesn't advertise subscribe capability + expect(client.supportsResourceSubscriptions()).toBe(false); + + await client.disconnect(); + await server.stop(); + }); + }); + + describe("ListChanged Notifications", () => { + it("should initialize listChangedNotifications config with defaults (all enabled)", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + // Defaults should be all enabled + expect((client as any).listChangedNotifications).toEqual({ + tools: true, + resources: true, + prompts: true, + }); + + await client.disconnect(); + await server.stop(); + }); + + it("should respect listChangedNotifications config options", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + listChangedNotifications: { + tools: false, + resources: true, + prompts: false, + }, + }, + ); + + expect((client as any).listChangedNotifications).toEqual({ + tools: false, + resources: true, + prompts: false, + }); + + await client.disconnect(); + await server.stop(); + }); + + it("should update state and dispatch event when listTools() is called", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createEchoTool()], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Clear initial state + expect(client.getTools()).toEqual([]); + + // Wait for toolsChange event + const toolsChangePromise = new Promise((resolve) => { + client.addEventListener( + "toolsChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }); + + const tools = await client.listTools(); + const event = await toolsChangePromise; + + expect(tools.length).toBeGreaterThan(0); + expect(client.getTools()).toEqual(tools); + expect(event.detail).toEqual(tools); + + await client.disconnect(); + await server.stop(); + }); + + it("should update state, clean cache, and dispatch event when listResources() is called", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resources: [createArchitectureResource()], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // First list resources to populate the list + await client.listResources(); + + // Load a resource to populate cache + const uri = "demo://resource/static/document/architecture.md"; + await client.readResource(uri); + expect(client.cache.getResource(uri)).not.toBeNull(); + + // Wait for resourcesChange event + const resourcesChangePromise = new Promise((resolve) => { + client.addEventListener( + "resourcesChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }); + + const resources = await client.listResources(); + const event = await resourcesChangePromise; + + expect(resources.length).toBeGreaterThan(0); + expect(client.getResources()).toEqual(resources); + expect(event.detail).toEqual(resources); + // Cache should be preserved for existing resource + expect(client.cache.getResource(uri)).not.toBeNull(); + + await client.disconnect(); + await server.stop(); + }); + + it("should clean up cache for removed resources when listResources() is called", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resources: [createArchitectureResource(), createTestCwdResource()], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // First list resources to populate the list + await client.listResources(); + + // Load both resources to populate cache + const uri1 = "demo://resource/static/document/architecture.md"; + const uri2 = "test://cwd"; + await client.readResource(uri1); + await client.readResource(uri2); + expect(client.cache.getResource(uri1)).not.toBeNull(); + expect(client.cache.getResource(uri2)).not.toBeNull(); + + // Now remove one resource from server + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resources: [createArchitectureResource()], // Only keep uri1 + }); + await server.stop(); + await server.start(); + + // Reconnect and list resources + await client.disconnect(); + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + await client.connect(); + + // First list resources to populate the list + await client.listResources(); + + // Load uri1 again to populate cache + await client.readResource(uri1); + + // List resources (should only have uri1 now) + await client.listResources(); + + // Cache for uri1 should be preserved, uri2 should be cleared + expect(client.cache.getResource(uri1)).not.toBeNull(); + expect(client.cache.getResource(uri2)).toBeNull(); + + await client.disconnect(); + await server.stop(); + }); + + it("should update state, clean cache, and dispatch event when listResourceTemplates() is called", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resourceTemplates: [createFileResourceTemplate()], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // First list resource templates to populate the list + await client.listResourceTemplates(); + + // Load a resource template to populate cache + const uriTemplate = "file:///{path}"; + await client.readResourceFromTemplate(uriTemplate, { path: "test.txt" }); + expect(client.cache.getResourceTemplate(uriTemplate)).not.toBeNull(); + + // Wait for resourceTemplatesChange event + const resourceTemplatesChangePromise = new Promise( + (resolve) => { + client.addEventListener( + "resourceTemplatesChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }, + ); + + const templates = await client.listResourceTemplates(); + const event = await resourceTemplatesChangePromise; + + expect(templates.length).toBeGreaterThan(0); + expect(client.getResourceTemplates()).toEqual(templates); + expect(event.detail).toEqual(templates); + // Cache should be preserved for existing template + expect(client.cache.getResourceTemplate(uriTemplate)).not.toBeNull(); + + await client.disconnect(); + await server.stop(); + }); + + it("should update state, clean cache, and dispatch event when listPrompts() is called", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + prompts: [createSimplePrompt()], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // First list prompts to populate the list + await client.listPrompts(); + + // Load a prompt to populate cache + const promptName = "simple-prompt"; + await client.getPrompt(promptName); + expect(client.cache.getPrompt(promptName)).not.toBeNull(); + + // Wait for promptsChange event + const promptsChangePromise = new Promise((resolve) => { + client.addEventListener( + "promptsChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }); + + const prompts = await client.listPrompts(); + const event = await promptsChangePromise; + + expect(prompts.length).toBeGreaterThan(0); + expect(client.getPrompts()).toEqual(prompts); + expect(event.detail).toEqual(prompts); + // Cache should be preserved for existing prompt + expect(client.cache.getPrompt(promptName)).not.toBeNull(); + + await client.disconnect(); + await server.stop(); + }); + + it("should handle tools/list_changed notification and reload tools", async () => { + const { createAddToolTool } = + await import("../test/test-server-fixtures.js"); + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createEchoTool(), createAddToolTool()], + listChanged: { tools: true }, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: true, // Auto-fetch to populate initial state + }, + ); + + await client.connect(); + + const initialTools = client.getTools(); + expect(initialTools.length).toBeGreaterThan(0); + + // Wait for toolsChange event after notification + const toolsChangePromise = new Promise((resolve) => { + client.addEventListener( + "toolsChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }); + + // Add a new tool (this will send list_changed notification) + await client.callTool("addTool", { + name: "newTool", + description: "A new test tool", + }); + const event = await toolsChangePromise; + + // Tools should be reloaded + const updatedTools = client.getTools(); + expect(Array.isArray(updatedTools)).toBe(true); + // Should have the new tool + expect(updatedTools.find((t) => t.name === "newTool")).toBeDefined(); + // Event detail should match current tools exactly + // (callTool() uses listToolsInternal() so it doesn't dispatch events, + // so this event comes only from the notification handler) + expect(event.detail).toEqual(updatedTools); + + await client.disconnect(); + await server.stop(); + }); + + it("should handle resources/list_changed notification and reload resources and templates", async () => { + const { createAddResourceTool } = + await import("../test/test-server-fixtures.js"); + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resources: [createArchitectureResource()], + resourceTemplates: [createFileResourceTemplate()], + tools: [createAddResourceTool()], + listChanged: { resources: true }, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: true, + }, + ); + + await client.connect(); + + const initialResources = client.getResources(); + const initialTemplates = client.getResourceTemplates(); + expect(initialResources.length).toBeGreaterThan(0); + expect(initialTemplates.length).toBeGreaterThan(0); + + // Wait for both change events + const resourcesChangePromise = new Promise((resolve) => { + client.addEventListener( + "resourcesChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }); + + const resourceTemplatesChangePromise = new Promise( + (resolve) => { + client.addEventListener( + "resourceTemplatesChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }, + ); + + // Add a new resource (this will send list_changed notification) + await client.callTool("addResource", { + uri: "test://new-resource", + name: "newResource", + text: "New resource content", + }); + const resourcesEvent = await resourcesChangePromise; + const templatesEvent = await resourceTemplatesChangePromise; + + // Both should be reloaded + expect(client.getResources()).toEqual(resourcesEvent.detail); + expect(client.getResourceTemplates()).toEqual(templatesEvent.detail); + // Should have the new resource + expect( + client.getResources().find((r) => r.uri === "test://new-resource"), + ).toBeDefined(); + + await client.disconnect(); + await server.stop(); + }); + + it("should handle prompts/list_changed notification and reload prompts", async () => { + const { createAddPromptTool } = + await import("../test/test-server-fixtures.js"); + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + prompts: [createSimplePrompt()], + tools: [createAddPromptTool()], + listChanged: { prompts: true }, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: true, + }, + ); + + await client.connect(); + + const initialPrompts = client.getPrompts(); + expect(initialPrompts.length).toBeGreaterThan(0); + + // Wait for promptsChange event after notification + const promptsChangePromise = new Promise((resolve) => { + client.addEventListener( + "promptsChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }); + + // Add a new prompt (this will send list_changed notification) + await client.callTool("addPrompt", { + name: "newPrompt", + promptString: "This is a new prompt", + }); + const event = await promptsChangePromise; + + // Prompts should be reloaded + expect(client.getPrompts()).toEqual(event.detail); + // Should have the new prompt + expect( + client.getPrompts().find((p) => p.name === "newPrompt"), + ).toBeDefined(); + + await client.disconnect(); + await server.stop(); + }); + + it("should respect listChangedNotifications config (disabled handlers)", async () => { + const { createAddToolTool } = + await import("../test/test-server-fixtures.js"); + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createEchoTool(), createAddToolTool()], + listChanged: { tools: true }, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: true, + listChangedNotifications: { + tools: false, // Disable tools listChanged handler + resources: true, + prompts: true, + }, + }, + ); + + await client.connect(); + + // Wait for autoFetchServerContents to complete and any events to settle + await new Promise((resolve) => setTimeout(resolve, 200)); + + const initialTools = client.getTools(); + const initialToolCount = initialTools.length; + + // Set up event listener to detect if notification handler runs + // callTool() uses listToolsInternal() which doesn't dispatch events, + // so any toolsChange event must come from the notification handler + let eventReceived = false; + const testEventListener = () => { + eventReceived = true; + }; + client.addEventListener("toolsChange", testEventListener, { once: true }); + + // Add a new tool (this will send list_changed notification from server) + // callTool() uses listToolsInternal() which doesn't dispatch events + // If handler is enabled, it will call listTools() which dispatches toolsChange + // Since handler is disabled, no event should be received + await client.callTool("addTool", { + name: "testTool", + description: "Test tool", + }); + + // Wait a bit to see if notification handler runs + await new Promise((resolve) => setTimeout(resolve, 200)); + + // Remove listener + client.removeEventListener("toolsChange", testEventListener); + + // Event should NOT be received because handler is disabled + expect(eventReceived).toBe(false); + + // Tools should not have changed (handler didn't run, so listTools() wasn't called) + // The server has the new tool, but the client's internal state hasn't been updated + const finalTools = client.getTools(); + expect(finalTools.length).toBe(initialToolCount); + expect(finalTools).toEqual(initialTools); + + // Verify the tool was actually added to the server by manually calling listTools() + // This proves the server received the addTool call and the notification was sent + const serverTools = await client.listTools(); + expect(serverTools.length).toBeGreaterThan(initialToolCount); + expect(serverTools.find((t) => t.name === "testTool")).toBeDefined(); + + await client.disconnect(); + await server.stop(); + }); + + it("should only register handlers when server supports listChanged capability", async () => { + // Create a server that doesn't advertise listChanged capability + // (we can't easily do this with our test server, but we can test the logic) + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createEchoTool()], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: true, + }, + ); + + await client.connect(); + + // Check that capabilities are set + const capabilities = (client as any).capabilities; + // If server doesn't advertise listChanged, handlers won't be registered + // This is tested implicitly - if handlers were registered incorrectly, tests would fail + + await client.disconnect(); + await server.stop(); + }); + + it("should handle tools/list_changed notification on removal and clear tool call cache", async () => { + const { createRemoveToolTool } = + await import("../test/test-server-fixtures.js"); + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createEchoTool(), createRemoveToolTool()], + listChanged: { tools: true }, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: true, + }, + ); + + await client.connect(); + + // Call echo tool to populate cache + const toolName = "echo"; + await client.callTool(toolName, { message: "test" }); + expect(client.cache.getToolCallResult(toolName)).not.toBeNull(); + + // Wait for toolsChange event after notification + const toolsChangePromise = new Promise((resolve) => { + client.addEventListener( + "toolsChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }); + + // Remove the tool (this will send list_changed notification) + await client.callTool("removeTool", { name: toolName }); + const event = await toolsChangePromise; + + // Tools should be reloaded + const updatedTools = client.getTools(); + expect(updatedTools.find((t) => t.name === toolName)).toBeUndefined(); + expect(event.detail).toEqual(updatedTools); + + // Cache should be cleared for removed tool + expect(client.cache.getToolCallResult(toolName)).toBeNull(); + + await client.disconnect(); + await server.stop(); + }); + + it("should handle resources/list_changed notification on removal and clear resource cache", async () => { + const { createRemoveResourceTool } = + await import("../test/test-server-fixtures.js"); + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resources: [createArchitectureResource()], + tools: [createRemoveResourceTool()], + listChanged: { resources: true }, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: true, + }, + ); + + await client.connect(); + + // Load resource to populate cache + const uri = "demo://resource/static/document/architecture.md"; + await client.readResource(uri); + expect(client.cache.getResource(uri)).not.toBeNull(); + + // Wait for resourcesChange event after notification + const resourcesChangePromise = new Promise((resolve) => { + client.addEventListener( + "resourcesChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }); + + // Remove the resource (this will send list_changed notification) + await client.callTool("removeResource", { uri }); + const event = await resourcesChangePromise; + + // Resources should be reloaded + const updatedResources = client.getResources(); + expect(updatedResources.find((r) => r.uri === uri)).toBeUndefined(); + expect(event.detail).toEqual(updatedResources); + + // Cache should be cleared for removed resource + expect(client.cache.getResource(uri)).toBeNull(); + + await client.disconnect(); + await server.stop(); + }); + + it("should handle prompts/list_changed notification on removal and clear prompt cache", async () => { + const { createRemovePromptTool } = + await import("../test/test-server-fixtures.js"); + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + prompts: [createSimplePrompt()], + tools: [createRemovePromptTool()], + listChanged: { prompts: true }, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: true, + }, + ); + + await client.connect(); + + // Load prompt to populate cache + const promptName = "simple-prompt"; + await client.getPrompt(promptName); + expect(client.cache.getPrompt(promptName)).not.toBeNull(); + + // Wait for promptsChange event after notification + const promptsChangePromise = new Promise((resolve) => { + client.addEventListener( + "promptsChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }); + + // Remove the prompt (this will send list_changed notification) + await client.callTool("removePrompt", { name: promptName }); + const event = await promptsChangePromise; + + // Prompts should be reloaded + const updatedPrompts = client.getPrompts(); + expect(updatedPrompts.find((p) => p.name === promptName)).toBeUndefined(); + expect(event.detail).toEqual(updatedPrompts); + + // Cache should be cleared for removed prompt + expect(client.cache.getPrompt(promptName)).toBeNull(); + + await client.disconnect(); + await server.stop(); + }); + + it("should clean up cache for removed resource templates when listResourceTemplates() is called", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resourceTemplates: [ + createFileResourceTemplate(), + createUserResourceTemplate(), + ], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // First list resource templates to populate the list + await client.listResourceTemplates(); + + // Load both templates to populate cache + const uriTemplate1 = "file:///{path}"; + const uriTemplate2 = "user://{userId}"; + await client.readResourceFromTemplate(uriTemplate1, { path: "test.txt" }); + await client.readResourceFromTemplate(uriTemplate2, { userId: "123" }); + expect(client.cache.getResourceTemplate(uriTemplate1)).not.toBeNull(); + expect(client.cache.getResourceTemplate(uriTemplate2)).not.toBeNull(); + + // Now remove one template from server + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resourceTemplates: [createFileResourceTemplate()], // Only keep uriTemplate1 + }); + await server.stop(); + await server.start(); + + // Reconnect and list resource templates + await client.disconnect(); + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + await client.connect(); + + // First list resource templates to populate the list + await client.listResourceTemplates(); + + // Load uriTemplate1 again to populate cache + await client.readResourceFromTemplate(uriTemplate1, { path: "test.txt" }); + + // List resource templates (should only have uriTemplate1 now) + await client.listResourceTemplates(); + + // Cache for uriTemplate1 should be preserved, uriTemplate2 should be cleared + expect(client.cache.getResourceTemplate(uriTemplate1)).not.toBeNull(); + expect(client.cache.getResourceTemplate(uriTemplate2)).toBeNull(); + + await client.disconnect(); + await server.stop(); + }); + + it("should clean up cache for removed prompts when listPrompts() is called", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + prompts: [createSimplePrompt(), createArgsPrompt()], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // First list prompts to populate the list + await client.listPrompts(); + + // Load both prompts to populate cache + const promptName1 = "simple-prompt"; + const promptName2 = "args-prompt"; + await client.getPrompt(promptName1); + await client.getPrompt(promptName2, { city: "New York", state: "NY" }); + expect(client.cache.getPrompt(promptName1)).not.toBeNull(); + expect(client.cache.getPrompt(promptName2)).not.toBeNull(); + + // Now remove one prompt from server + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + prompts: [createSimplePrompt()], // Only keep promptName1 + }); + await server.stop(); + await server.start(); + + // Reconnect and list prompts + await client.disconnect(); + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + await client.connect(); + + // First list prompts to populate the list + await client.listPrompts(); + + // Load promptName1 again to populate cache + await client.getPrompt(promptName1); + + // List prompts (should only have promptName1 now) + await client.listPrompts(); + + // Cache for promptName1 should be preserved, promptName2 should be cleared + expect(client.cache.getPrompt(promptName1)).not.toBeNull(); + expect(client.cache.getPrompt(promptName2)).toBeNull(); + + await client.disconnect(); + await server.stop(); + }); + }); + + describe("Resource Subscriptions", () => { + it("should subscribe to a resource and track subscription state", async () => { + // Test server without subscriptions + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resources: [createArchitectureResource()], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Server doesn't support subscriptions + expect(client.supportsResourceSubscriptions()).toBe(false); + + // Should throw error when trying to subscribe + await expect( + client.subscribeToResource( + "demo://resource/static/document/architecture.md", + ), + ).rejects.toThrow("Server does not support resource subscriptions"); + + await client.disconnect(); + await server.stop(); + }); + + it("should subscribe to a resource when server supports subscriptions", async () => { + const { createUpdateResourceTool } = + await import("../test/test-server-fixtures.js"); + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resources: [createArchitectureResource()], + tools: [createUpdateResourceTool()], + subscriptions: true, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // Server supports subscriptions + expect(client.supportsResourceSubscriptions()).toBe(true); + + const uri = "demo://resource/static/document/architecture.md"; + + // Wait for resourceSubscriptionsChange event + const eventPromise = new Promise((resolve) => { + client.addEventListener( + "resourceSubscriptionsChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }); + + // Subscribe to resource + await client.subscribeToResource(uri); + const event = await eventPromise; + + // Verify subscription state + expect(client.isSubscribedToResource(uri)).toBe(true); + expect(client.getSubscribedResources()).toContain(uri); + expect(event.detail).toContain(uri); + + await client.disconnect(); + await server.stop(); + }); + + it("should unsubscribe from a resource", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resources: [createArchitectureResource()], + subscriptions: true, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + const uri = "demo://resource/static/document/architecture.md"; + + // Subscribe first + await client.subscribeToResource(uri); + expect(client.isSubscribedToResource(uri)).toBe(true); + + // Wait for resourceSubscriptionsChange event + const eventPromise = new Promise((resolve) => { + client.addEventListener( + "resourceSubscriptionsChange", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }); + + // Unsubscribe + await client.unsubscribeFromResource(uri); + const event = await eventPromise; + + // Verify unsubscribed + expect(client.isSubscribedToResource(uri)).toBe(false); + expect(client.getSubscribedResources()).not.toContain(uri); + expect(event.detail).not.toContain(uri); + + await client.disconnect(); + await server.stop(); + }); + + it("should throw error when unsubscribe called while not connected", async () => { + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resources: [createArchitectureResource()], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + await client.disconnect(); + + await expect( + client.unsubscribeFromResource( + "demo://resource/static/document/architecture.md", + ), + ).rejects.toThrow(); + + await server.stop(); + }); + + it("should handle resource updated notification and clear cache for subscribed resource", async () => { + const { createUpdateResourceTool } = + await import("../test/test-server-fixtures.js"); + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resources: [createArchitectureResource()], + tools: [createUpdateResourceTool()], + subscriptions: true, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + const uri = "demo://resource/static/document/architecture.md"; + + // Load resource to populate cache + await client.readResource(uri); + expect(client.cache.getResource(uri)).not.toBeNull(); + + // Subscribe to resource + await client.subscribeToResource(uri); + expect(client.isSubscribedToResource(uri)).toBe(true); + + // Wait for resourceUpdated event + const eventPromise = new Promise((resolve) => { + client.addEventListener( + "resourceUpdated", + ((event: CustomEvent) => { + resolve(event); + }) as EventListener, + { once: true }, + ); + }); + + // Update the resource (this will send resource updated notification) + await client.callTool("updateResource", { + uri, + text: "Updated content", + }); + + const event = await eventPromise; + expect(event.detail.uri).toBe(uri); + + // Cache should be cleared + expect(client.cache.getResource(uri)).toBeNull(); + + await client.disconnect(); + await server.stop(); + }); + + it("should ignore resource updated notification for unsubscribed resources", async () => { + const { createUpdateResourceTool } = + await import("../test/test-server-fixtures.js"); + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resources: [createArchitectureResource()], + tools: [createUpdateResourceTool()], + subscriptions: true, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + const uri = "demo://resource/static/document/architecture.md"; + + // Load resource to populate cache + await client.readResource(uri); + expect(client.cache.getResource(uri)).not.toBeNull(); + + // Don't subscribe - resource should NOT be in subscribedResources + expect(client.isSubscribedToResource(uri)).toBe(false); + + // Set up event listener (should not receive event) + let eventReceived = false; + const testEventListener = () => { + eventReceived = true; + }; + client.addEventListener("resourceUpdated", testEventListener, { + once: true, + }); + + // Update the resource (this will send resource updated notification) + await client.callTool("updateResource", { + uri, + text: "Updated content", + }); + + // Wait a bit to see if event is received + await new Promise((resolve) => setTimeout(resolve, 100)); + + // Remove listener + client.removeEventListener("resourceUpdated", testEventListener); + + // Event should NOT be received because resource is not subscribed + expect(eventReceived).toBe(false); + + // Cache should still be present (not cleared) + expect(client.cache.getResource(uri)).not.toBeNull(); + + await client.disconnect(); + await server.stop(); + }); + }); }); diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index 9f47210b1..5a082b81c 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -37,8 +37,6 @@ import type { CreateMessageResult, ElicitRequest, ElicitResult, - ReadResourceResult, - GetPromptResult, CallToolResult, } from "@modelcontextprotocol/sdk/types.js"; import { @@ -46,6 +44,10 @@ import { ElicitRequestSchema, ListRootsRequestSchema, RootsListChangedNotificationSchema, + ToolListChangedNotificationSchema, + ResourceListChangedNotificationSchema, + PromptListChangedNotificationSchema, + ResourceUpdatedNotificationSchema, type Root, } from "@modelcontextprotocol/sdk/types.js"; import { @@ -111,6 +113,16 @@ export interface InspectorClientOptions { * advertise roots capability and handle roots/list requests from the server. */ roots?: Root[]; + + /** + * Whether to enable listChanged notification handlers (default: true) + * If enabled, InspectorClient will automatically reload lists when notifications are received + */ + listChangedNotifications?: { + tools?: boolean; // default: true + resources?: boolean; // default: true + prompts?: boolean; // default: true + }; } /** @@ -252,6 +264,14 @@ export class InspectorClient extends EventTarget { // Content cache private cacheInternal: ContentCache; public readonly cache: ReadOnlyContentCache; + // ListChanged notification configuration + private listChangedNotifications: { + tools: boolean; + resources: boolean; + prompts: boolean; + }; + // Resource subscriptions + private subscribedResources: Set = new Set(); constructor( private transportConfig: MCPServerConfig, @@ -270,6 +290,12 @@ export class InspectorClient extends EventTarget { this.elicit = options.elicit ?? true; // Only set roots if explicitly provided (even if empty array) - this enables roots capability this.roots = options.roots; + // Initialize listChangedNotifications config (default: all enabled) + this.listChangedNotifications = { + tools: options.listChangedNotifications?.tools ?? true, + resources: options.listChangedNotifications?.resources ?? true, + prompts: options.listChangedNotifications?.prompts ?? true, + }; // Set up message tracking callbacks const messageTracking: MessageTrackingCallbacks = { @@ -485,6 +511,74 @@ export class InspectorClient extends EventTarget { }, ); } + + // Set up listChanged notification handlers based on config + if (this.client) { + // Tools listChanged handler + // Only register if both client config and server capability are enabled + if ( + this.listChangedNotifications.tools && + this.capabilities?.tools?.listChanged + ) { + this.client.setNotificationHandler( + ToolListChangedNotificationSchema, + async () => { + await this.listTools(); + }, + ); + } + // Note: If handler should not be registered, we don't set it + // The SDK client will ignore notifications for which no handler is registered + + // Resources listChanged handler (reloads both resources and resource templates) + if ( + this.listChangedNotifications.resources && + this.capabilities?.resources?.listChanged + ) { + this.client.setNotificationHandler( + ResourceListChangedNotificationSchema, + async () => { + // Resource templates are part of the resources capability + await this.listResources(); + await this.listResourceTemplates(); + }, + ); + } + + // Prompts listChanged handler + if ( + this.listChangedNotifications.prompts && + this.capabilities?.prompts?.listChanged + ) { + this.client.setNotificationHandler( + PromptListChangedNotificationSchema, + async () => { + await this.listPrompts(); + }, + ); + } + + // Resource updated notification handler (only if server supports subscriptions) + if (this.capabilities?.resources?.subscribe === true) { + this.client.setNotificationHandler( + ResourceUpdatedNotificationSchema, + async (notification) => { + const uri = notification.params.uri; + // Only process if we're subscribed to this resource + if (this.subscribedResources.has(uri)) { + // Clear cache for this resource (handles both regular resources and resource templates) + this.cacheInternal.clearResourceAndResourceTemplate(uri); + // Dispatch event to notify UI + this.dispatchEvent( + new CustomEvent("resourceUpdated", { + detail: { uri }, + }), + ); + } + }, + ); + } + } } catch (error) { this.status = "error"; this.dispatchEvent( @@ -526,6 +620,8 @@ export class InspectorClient extends EventTarget { this.pendingElicitations = []; // Clear all cached content on disconnect this.cacheInternal.clearAll(); + // Clear resource subscriptions on disconnect + this.subscribedResources.clear(); this.capabilities = undefined; this.serverInfo = undefined; this.instructions = undefined; @@ -731,11 +827,14 @@ export class InspectorClient extends EventTarget { } /** - * List available tools + * Internal method to list tools without updating state or dispatching events + * Used by callTool() to find tools without triggering state changes * @param metadata Optional metadata to include in the request * @returns Array of tools */ - async listTools(metadata?: Record): Promise { + private async listToolsInternal( + metadata?: Record, + ): Promise { if (!this.client) { throw new Error("Client is not connected"); } @@ -751,6 +850,40 @@ export class InspectorClient extends EventTarget { } } + /** + * List available tools + * @param metadata Optional metadata to include in the request + * @returns Array of tools + */ + async listTools(metadata?: Record): Promise { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + const newTools = await this.listToolsInternal(metadata); + // Find removed tool names by comparing with current tools + const currentNames = new Set(this.tools.map((t) => t.name)); + const newNames = new Set(newTools.map((t) => t.name)); + // Clear cache for removed tools + for (const name of currentNames) { + if (!newNames.has(name)) { + this.cacheInternal.clearToolCallResult(name); + } + } + // Update internal state + this.tools = newTools; + // Dispatch change event + this.dispatchEvent( + new CustomEvent("toolsChange", { detail: this.tools }), + ); + return newTools; + } catch (error) { + throw new Error( + `Failed to list tools: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + /** * Call a tool by name * @param name Tool name @@ -769,7 +902,7 @@ export class InspectorClient extends EventTarget { throw new Error("Client is not connected"); } try { - const tools = await this.listTools(generalMetadata); + const tools = await this.listToolsInternal(generalMetadata); const tool = tools.find((t) => t.name === name); let convertedArgs: Record = args; @@ -898,7 +1031,24 @@ export class InspectorClient extends EventTarget { const params = metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; const response = await this.client.listResources(params); - return response.resources || []; + const newResources = response.resources || []; + // Find removed URIs by comparing with current resources + const currentUris = new Set(this.resources.map((r) => r.uri)); + const newUris = new Set(newResources.map((r) => r.uri)); + // Clear cache for removed resources + for (const uri of currentUris) { + if (!newUris.has(uri)) { + this.cacheInternal.clearResource(uri); + } + } + // Update internal state + this.resources = newResources; + // Dispatch change event + this.dispatchEvent( + new CustomEvent("resourcesChange", { detail: this.resources }), + ); + // Note: Cached content for existing resources is automatically preserved + return newResources; } catch (error) { throw new Error( `Failed to list resources: ${error instanceof Error ? error.message : String(error)}`, @@ -1045,7 +1195,28 @@ export class InspectorClient extends EventTarget { const params = metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; const response = await this.client.listResourceTemplates(params); - return response.resourceTemplates || []; + const newTemplates = response.resourceTemplates || []; + // Find removed uriTemplates by comparing with current templates + const currentUriTemplates = new Set( + this.resourceTemplates.map((t) => t.uriTemplate), + ); + const newUriTemplates = new Set(newTemplates.map((t) => t.uriTemplate)); + // Clear cache for removed templates + for (const uriTemplate of currentUriTemplates) { + if (!newUriTemplates.has(uriTemplate)) { + this.cacheInternal.clearResourceTemplate(uriTemplate); + } + } + // Update internal state + this.resourceTemplates = newTemplates; + // Dispatch change event + this.dispatchEvent( + new CustomEvent("resourceTemplatesChange", { + detail: this.resourceTemplates, + }), + ); + // Note: Cached content for existing templates is automatically preserved + return newTemplates; } catch (error) { throw new Error( `Failed to list resource templates: ${error instanceof Error ? error.message : String(error)}`, @@ -1066,7 +1237,24 @@ export class InspectorClient extends EventTarget { const params = metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; const response = await this.client.listPrompts(params); - return response.prompts || []; + const newPrompts = response.prompts || []; + // Find removed prompt names by comparing with current prompts + const currentNames = new Set(this.prompts.map((p) => p.name)); + const newNames = new Set(newPrompts.map((p) => p.name)); + // Clear cache for removed prompts + for (const name of currentNames) { + if (!newNames.has(name)) { + this.cacheInternal.clearPrompt(name); + } + } + // Update internal state + this.prompts = newPrompts; + // Dispatch change event + this.dispatchEvent( + new CustomEvent("promptsChange", { detail: this.prompts }), + ); + // Note: Cached content for existing prompts is automatically preserved + return newPrompts; } catch (error) { throw new Error( `Failed to list prompts: ${error instanceof Error ? error.message : String(error)}`, @@ -1246,12 +1434,10 @@ export class InspectorClient extends EventTarget { try { // Query resources, prompts, and tools based on capabilities + // The list*() methods now handle state updates and event dispatching internally if (this.capabilities?.resources) { try { - this.resources = await this.listResources(); - this.dispatchEvent( - new CustomEvent("resourcesChange", { detail: this.resources }), - ); + await this.listResources(); } catch (err) { // Ignore errors, just leave empty this.resources = []; @@ -1262,12 +1448,7 @@ export class InspectorClient extends EventTarget { // Also fetch resource templates try { - this.resourceTemplates = await this.listResourceTemplates(); - this.dispatchEvent( - new CustomEvent("resourceTemplatesChange", { - detail: this.resourceTemplates, - }), - ); + await this.listResourceTemplates(); } catch (err) { // Ignore errors, just leave empty this.resourceTemplates = []; @@ -1281,10 +1462,7 @@ export class InspectorClient extends EventTarget { if (this.capabilities?.prompts) { try { - this.prompts = await this.listPrompts(); - this.dispatchEvent( - new CustomEvent("promptsChange", { detail: this.prompts }), - ); + await this.listPrompts(); } catch (err) { // Ignore errors, just leave empty this.prompts = []; @@ -1296,10 +1474,7 @@ export class InspectorClient extends EventTarget { if (this.capabilities?.tools) { try { - this.tools = await this.listTools(); - this.dispatchEvent( - new CustomEvent("toolsChange", { detail: this.tools }), - ); + await this.listTools(); } catch (err) { // Ignore errors, just leave empty this.tools = []; @@ -1402,4 +1577,76 @@ export class InspectorClient extends EventTarget { console.error("Failed to send roots/list_changed notification:", error); } } + + /** + * Get list of currently subscribed resource URIs + */ + getSubscribedResources(): string[] { + return Array.from(this.subscribedResources); + } + + /** + * Check if a resource is currently subscribed + */ + isSubscribedToResource(uri: string): boolean { + return this.subscribedResources.has(uri); + } + + /** + * Check if the server supports resource subscriptions + */ + supportsResourceSubscriptions(): boolean { + return this.capabilities?.resources?.subscribe === true; + } + + /** + * Subscribe to a resource to receive update notifications + * @param uri - The URI of the resource to subscribe to + * @throws Error if client is not connected or server doesn't support subscriptions + */ + async subscribeToResource(uri: string): Promise { + if (!this.client) { + throw new Error("Client is not connected"); + } + if (!this.supportsResourceSubscriptions()) { + throw new Error("Server does not support resource subscriptions"); + } + try { + await this.client.subscribeResource({ uri }); + this.subscribedResources.add(uri); + this.dispatchEvent( + new CustomEvent("resourceSubscriptionsChange", { + detail: Array.from(this.subscribedResources), + }), + ); + } catch (error) { + throw new Error( + `Failed to subscribe to resource: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + + /** + * Unsubscribe from a resource + * @param uri - The URI of the resource to unsubscribe from + * @throws Error if client is not connected + */ + async unsubscribeFromResource(uri: string): Promise { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + await this.client.unsubscribeResource({ uri }); + this.subscribedResources.delete(uri); + this.dispatchEvent( + new CustomEvent("resourceSubscriptionsChange", { + detail: Array.from(this.subscribedResources), + }), + ); + } catch (error) { + throw new Error( + `Failed to unsubscribe from resource: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } } diff --git a/shared/test/composable-test-server.ts b/shared/test/composable-test-server.ts index f0c661208..10ffd0169 100644 --- a/shared/test/composable-test-server.ts +++ b/shared/test/composable-test-server.ts @@ -13,18 +13,52 @@ import type { Implementation, ListResourcesResult, } from "@modelcontextprotocol/sdk/types.js"; -import { SetLevelRequestSchema } from "@modelcontextprotocol/sdk/types.js"; +import type { + RegisteredTool, + RegisteredResource, + RegisteredPrompt, + RegisteredResourceTemplate, +} from "@modelcontextprotocol/sdk/server/mcp.js"; +import { + SetLevelRequestSchema, + SubscribeRequestSchema, + UnsubscribeRequestSchema, +} from "@modelcontextprotocol/sdk/types.js"; import { ZodRawShapeCompat } from "@modelcontextprotocol/sdk/server/zod-compat.js"; import { completable } from "@modelcontextprotocol/sdk/server/completable.js"; type ToolInputSchema = ZodRawShapeCompat; type PromptArgsSchema = ZodRawShapeCompat; +interface ServerState { + registeredTools: Map; // Keyed by name + registeredResources: Map; // Keyed by URI + registeredPrompts: Map; // Keyed by name + registeredResourceTemplates: Map; // Keyed by uriTemplate + listChangedConfig: { + tools?: boolean; + resources?: boolean; + prompts?: boolean; + }; + resourceSubscriptions: Set; // Set of subscribed resource URIs +} + +/** + * Context object passed to tool handlers containing both server and state + */ +export interface TestServerContext { + server: McpServer; + state: ServerState; +} + export interface ToolDefinition { name: string; description: string; inputSchema?: ToolInputSchema; - handler: (params: Record, server?: McpServer) => Promise; + handler: ( + params: Record, + context?: TestServerContext, + ) => Promise; } export interface ResourceDefinition { @@ -104,6 +138,20 @@ export interface ServerConfig { | undefined; // Optional callback to customize resource handler during registration serverType?: "sse" | "streamable-http"; // Transport type (default: "streamable-http") port?: number; // Port to use (optional, will find available port if not specified) + /** + * Whether to advertise listChanged capability for each list type + * If enabled, modification tools will send list_changed notifications + */ + listChanged?: { + tools?: boolean; // default: false + resources?: boolean; // default: false + prompts?: boolean; // default: false + }; + /** + * Whether to advertise resource subscriptions capability + * If enabled, server will advertise resources.subscribe capability + */ + subscriptions?: boolean; // default: false } /** @@ -114,7 +162,7 @@ export function createMcpServer(config: ServerConfig): McpServer { // Build capabilities based on config const capabilities: { tools?: {}; - resources?: {}; + resources?: { subscribe?: boolean }; prompts?: {}; logging?: {}; } = {}; @@ -127,6 +175,10 @@ export function createMcpServer(config: ServerConfig): McpServer { config.resourceTemplates !== undefined ) { capabilities.resources = {}; + // Add subscribe capability if subscriptions are enabled + if (config.subscriptions === true) { + capabilities.resources.subscribe = true; + } } if (config.prompts !== undefined) { capabilities.prompts = {}; @@ -140,6 +192,22 @@ export function createMcpServer(config: ServerConfig): McpServer { capabilities, }); + // Create state (this is really session state, which is what we'll call it if we implement sessions at some point) + const state: ServerState = { + registeredTools: new Map(), // Keyed by name + registeredResources: new Map(), // Keyed by URI + registeredPrompts: new Map(), // Keyed by name + registeredResourceTemplates: new Map(), // Keyed by uriTemplate + listChangedConfig: config.listChanged || {}, + resourceSubscriptions: new Set(), // Track subscribed resource URIs + }; + + // Create context object + const context: TestServerContext = { + server: mcpServer, + state, + }; + // Set up logging handler if logging is enabled if (config.logging === true) { mcpServer.server.setRequestHandler( @@ -155,10 +223,33 @@ export function createMcpServer(config: ServerConfig): McpServer { ); } + // Set up resource subscription handlers if subscriptions are enabled + if (config.subscriptions === true) { + mcpServer.server.setRequestHandler( + SubscribeRequestSchema, + async (request) => { + // Track subscription in state (accessible via closure) + const uri = request.params.uri; + state.resourceSubscriptions.add(uri); + return {}; + }, + ); + + mcpServer.server.setRequestHandler( + UnsubscribeRequestSchema, + async (request) => { + // Remove subscription from state (accessible via closure) + const uri = request.params.uri; + state.resourceSubscriptions.delete(uri); + return {}; + }, + ); + } + // Set up tools if (config.tools && config.tools.length > 0) { for (const tool of config.tools) { - mcpServer.registerTool( + const registered = mcpServer.registerTool( tool.name, { description: tool.description, @@ -167,7 +258,7 @@ export function createMcpServer(config: ServerConfig): McpServer { async (args) => { const result = await tool.handler( args as Record, - mcpServer, + context, // Pass context instead of mcpServer ); // Handle different return types from tool handlers // If handler returns content array directly (like get-annotated-message), use it @@ -196,6 +287,7 @@ export function createMcpServer(config: ServerConfig): McpServer { }; }, ); + state.registeredTools.set(tool.name, registered); } } @@ -207,7 +299,7 @@ export function createMcpServer(config: ServerConfig): McpServer { ? config.onRegisterResource(resource) : undefined; - mcpServer.registerResource( + const registered = mcpServer.registerResource( resource.name, resource.uri, { @@ -227,6 +319,7 @@ export function createMcpServer(config: ServerConfig): McpServer { }; }), ); + state.registeredResources.set(resource.uri, registered); } } @@ -315,7 +408,7 @@ export function createMcpServer(config: ServerConfig): McpServer { complete: completeCallbacks, }); - mcpServer.registerResource( + const registered = mcpServer.registerResource( template.name, resourceTemplate, { @@ -326,6 +419,7 @@ export function createMcpServer(config: ServerConfig): McpServer { return result; }, ); + state.registeredResourceTemplates.set(template.uriTemplate, registered); } } @@ -361,7 +455,7 @@ export function createMcpServer(config: ServerConfig): McpServer { argsSchema = enhancedSchema; } - mcpServer.registerPrompt( + const registered = mcpServer.registerPrompt( prompt.name, { description: prompt.description, @@ -395,6 +489,7 @@ export function createMcpServer(config: ServerConfig): McpServer { }; }, ); + state.registeredPrompts.set(prompt.name, registered); } } diff --git a/shared/test/test-server-fixtures.ts b/shared/test/test-server-fixtures.ts index 64745154d..80b59f442 100644 --- a/shared/test/test-server-fixtures.ts +++ b/shared/test/test-server-fixtures.ts @@ -18,6 +18,7 @@ import type { PromptDefinition, ResourceTemplateDefinition, ServerConfig, + TestServerContext, } from "./composable-test-server.js"; import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; @@ -98,11 +99,12 @@ export function createCollectSampleTool(): ToolDefinition { }, handler: async ( params: Record, - server?: McpServer, + context?: TestServerContext, ): Promise => { - if (!server) { - throw new Error("Server instance not available"); + if (!context) { + throw new Error("Server context not available"); } + const server = context.server; const text = params.text as string; @@ -155,11 +157,12 @@ export function createListRootsTool(): ToolDefinition { inputSchema: {}, handler: async ( _params: Record, - server?: McpServer, + context?: TestServerContext, ): Promise => { - if (!server) { - throw new Error("Server instance not available"); + if (!context) { + throw new Error("Server context not available"); } + const server = context.server; try { // Call roots/list on the client @@ -200,11 +203,12 @@ export function createCollectElicitationTool(): ToolDefinition { }, handler: async ( params: Record, - server?: McpServer, + context?: TestServerContext, ): Promise => { - if (!server) { - throw new Error("Server instance not available"); + if (!context) { + throw new Error("Server context not available"); } + const server = context.server; const message = params.message as string; const schema = params.schema as any; @@ -265,11 +269,12 @@ export function createSendNotificationTool(): ToolDefinition { }, handler: async ( params: Record, - server?: McpServer, + context?: TestServerContext, ): Promise => { - if (!server) { - throw new Error("Server instance not available"); + if (!context) { + throw new Error("Server context not available"); } + const server = context.server; const message = params.message as string; const level = (params.level as string) || "info"; @@ -540,6 +545,396 @@ export function createUserResourceTemplate( }; } +/** + * Create a tool that adds a resource to the server and sends list_changed notification + */ +export function createAddResourceTool(): ToolDefinition { + return { + name: "addResource", + description: + "Add a resource to the server and send list_changed notification", + inputSchema: { + uri: z.string().describe("Resource URI"), + name: z.string().describe("Resource name"), + description: z.string().optional().describe("Resource description"), + mimeType: z.string().optional().describe("Resource MIME type"), + text: z.string().optional().describe("Resource text content"), + }, + handler: async ( + params: Record, + context?: TestServerContext, + ) => { + if (!context) { + throw new Error("Server context not available"); + } + + const { server, state } = context; + + // Register with SDK (returns RegisteredResource) + const registered = server.registerResource( + params.name as string, + params.uri as string, + { + description: params.description as string | undefined, + mimeType: params.mimeType as string | undefined, + }, + async () => { + return { + contents: params.text + ? [ + { + uri: params.uri as string, + mimeType: params.mimeType as string | undefined, + text: params.text as string, + }, + ] + : [], + }; + }, + ); + + // Track in state (keyed by URI) + state.registeredResources.set(params.uri as string, registered); + + // Send notification if capability enabled + if (state.listChangedConfig.resources) { + server.sendResourceListChanged(); + } + + return { + message: `Resource ${params.uri} added`, + uri: params.uri, + }; + }, + }; +} + +/** + * Create a tool that removes a resource from the server by URI and sends list_changed notification + */ +export function createRemoveResourceTool(): ToolDefinition { + return { + name: "removeResource", + description: + "Remove a resource from the server by URI and send list_changed notification", + inputSchema: { + uri: z.string().describe("Resource URI to remove"), + }, + handler: async ( + params: Record, + context?: TestServerContext, + ) => { + if (!context) { + throw new Error("Server context not available"); + } + + const { server, state } = context; + + // Find registered resource by URI + const resource = state.registeredResources.get(params.uri as string); + if (!resource) { + throw new Error(`Resource with URI ${params.uri} not found`); + } + + // Remove from SDK registry + resource.remove(); + + // Remove from tracking + state.registeredResources.delete(params.uri as string); + + // Send notification if capability enabled + if (state.listChangedConfig.resources) { + server.sendResourceListChanged(); + } + + return { + message: `Resource ${params.uri} removed`, + uri: params.uri, + }; + }, + }; +} + +/** + * Create a tool that adds a tool to the server and sends list_changed notification + */ +export function createAddToolTool(): ToolDefinition { + return { + name: "addTool", + description: "Add a tool to the server and send list_changed notification", + inputSchema: { + name: z.string().describe("Tool name"), + description: z.string().describe("Tool description"), + inputSchema: z.any().optional().describe("Tool input schema"), + }, + handler: async ( + params: Record, + context?: TestServerContext, + ) => { + if (!context) { + throw new Error("Server context not available"); + } + + const { server, state } = context; + + // Register with SDK (returns RegisteredTool) + const registered = server.registerTool( + params.name as string, + { + description: params.description as string, + inputSchema: params.inputSchema, + }, + async () => { + return { + content: [ + { + type: "text" as const, + text: `Tool ${params.name} executed`, + }, + ], + }; + }, + ); + + // Track in state (keyed by name) + state.registeredTools.set(params.name as string, registered); + + // Send notification if capability enabled + // Note: sendToolListChanged() is synchronous on McpServer but internally calls async Server method + // We don't await it, but the tool should be registered before sending the notification + if (state.listChangedConfig.tools) { + // Small delay to ensure tool is fully registered in SDK's internal state + await new Promise((resolve) => setTimeout(resolve, 10)); + server.sendToolListChanged(); + } + + return { + message: `Tool ${params.name} added`, + name: params.name, + }; + }, + }; +} + +/** + * Create a tool that removes a tool from the server by name and sends list_changed notification + */ +export function createRemoveToolTool(): ToolDefinition { + return { + name: "removeTool", + description: + "Remove a tool from the server by name and send list_changed notification", + inputSchema: { + name: z.string().describe("Tool name to remove"), + }, + handler: async ( + params: Record, + context?: TestServerContext, + ) => { + if (!context) { + throw new Error("Server context not available"); + } + + const { server, state } = context; + + // Find registered tool by name + const tool = state.registeredTools.get(params.name as string); + if (!tool) { + throw new Error(`Tool ${params.name} not found`); + } + + // Remove from SDK registry + tool.remove(); + + // Remove from tracking + state.registeredTools.delete(params.name as string); + + // Send notification if capability enabled + if (state.listChangedConfig.tools) { + server.sendToolListChanged(); + } + + return { + message: `Tool ${params.name} removed`, + name: params.name, + }; + }, + }; +} + +/** + * Create a tool that adds a prompt to the server and sends list_changed notification + */ +export function createAddPromptTool(): ToolDefinition { + return { + name: "addPrompt", + description: + "Add a prompt to the server and send list_changed notification", + inputSchema: { + name: z.string().describe("Prompt name"), + description: z.string().optional().describe("Prompt description"), + promptString: z.string().describe("Prompt text"), + argsSchema: z.any().optional().describe("Prompt arguments schema"), + }, + handler: async ( + params: Record, + context?: TestServerContext, + ) => { + if (!context) { + throw new Error("Server context not available"); + } + + const { server, state } = context; + + // Register with SDK (returns RegisteredPrompt) + const registered = server.registerPrompt( + params.name as string, + { + description: params.description as string | undefined, + argsSchema: params.argsSchema, + }, + async () => { + return { + messages: [ + { + role: "user" as const, + content: { + type: "text" as const, + text: params.promptString as string, + }, + }, + ], + }; + }, + ); + + // Track in state (keyed by name) + state.registeredPrompts.set(params.name as string, registered); + + // Send notification if capability enabled + if (state.listChangedConfig.prompts) { + server.sendPromptListChanged(); + } + + return { + message: `Prompt ${params.name} added`, + name: params.name, + }; + }, + }; +} + +/** + * Create a tool that updates an existing resource's content and sends resource updated notification + */ +export function createUpdateResourceTool(): ToolDefinition { + return { + name: "updateResource", + description: + "Update an existing resource's content and send resource updated notification", + inputSchema: { + uri: z.string().describe("Resource URI to update"), + text: z.string().describe("New resource text content"), + }, + handler: async ( + params: Record, + context?: TestServerContext, + ) => { + if (!context) { + throw new Error("Server context not available"); + } + + const { server, state } = context; + + // Find registered resource by URI + const resource = state.registeredResources.get(params.uri as string); + if (!resource) { + throw new Error(`Resource with URI ${params.uri} not found`); + } + + // Get the current resource metadata to preserve mimeType + const currentResource = state.registeredResources.get( + params.uri as string, + ); + const mimeType = currentResource?.metadata?.mimeType || "text/plain"; + + // Update the resource's callback to return new content + resource.update({ + callback: async () => { + return { + contents: [ + { + uri: params.uri as string, + mimeType, + text: params.text as string, + }, + ], + }; + }, + }); + + // Send resource updated notification only if subscribed + const uri = params.uri as string; + if (state.resourceSubscriptions.has(uri)) { + await server.server.sendResourceUpdated({ + uri, + }); + } + + return { + message: `Resource ${params.uri} updated`, + uri: params.uri, + }; + }, + }; +} + +/** + * Create a tool that removes a prompt from the server by name and sends list_changed notification + */ +export function createRemovePromptTool(): ToolDefinition { + return { + name: "removePrompt", + description: + "Remove a prompt from the server by name and send list_changed notification", + inputSchema: { + name: z.string().describe("Prompt name to remove"), + }, + handler: async ( + params: Record, + context?: TestServerContext, + ) => { + if (!context) { + throw new Error("Server context not available"); + } + + const { server, state } = context; + + // Find registered prompt by name + const prompt = state.registeredPrompts.get(params.name as string); + if (!prompt) { + throw new Error(`Prompt ${params.name} not found`); + } + + // Remove from SDK registry + prompt.remove(); + + // Remove from tracking + state.registeredPrompts.delete(params.name as string); + + // Send notification if capability enabled + if (state.listChangedConfig.prompts) { + server.sendPromptListChanged(); + } + + return { + message: `Prompt ${params.name} removed`, + name: params.name, + }; + }, + }; +} + /** * Get default server config with common test tools, prompts, and resources */ diff --git a/shared/test/test-server-stdio.ts b/shared/test/test-server-stdio.ts index 32a9166ae..c3b593acd 100644 --- a/shared/test/test-server-stdio.ts +++ b/shared/test/test-server-stdio.ts @@ -13,8 +13,6 @@ import { fileURLToPath } from "url"; import { dirname } from "path"; import type { ServerConfig, - ToolDefinition, - PromptDefinition, ResourceDefinition, } from "./test-server-fixtures.js"; import { From 955abb2cd29fbcbcfa8d1f743a213e303aee38a3 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Sat, 24 Jan 2026 00:21:47 -0800 Subject: [PATCH 37/44] Added list paging support to InspectorClient, including test tooling support and tests. --- cli/src/index.ts | 8 +- docs/tui-web-client-feature-gaps.md | 114 +++---- shared/__tests__/inspectorClient.test.ts | 362 ++++++++++++++++++++--- shared/mcp/inspectorClient.ts | 273 ++++++++++++++--- shared/test/composable-test-server.ts | 275 ++++++++++++++++- shared/test/test-server-fixtures.ts | 88 ++++++ 6 files changed, 949 insertions(+), 171 deletions(-) diff --git a/cli/src/index.ts b/cli/src/index.ts index 1919f0963..a22006fdb 100644 --- a/cli/src/index.ts +++ b/cli/src/index.ts @@ -183,7 +183,7 @@ async function callMethod(args: Args): Promise { // Tools methods if (args.method === "tools/list") { - result = { tools: await inspectorClient.listTools(args.metadata) }; + result = { tools: await inspectorClient.listAllTools(args.metadata) }; } else if (args.method === "tools/call") { if (!args.toolName) { throw new Error( @@ -217,7 +217,7 @@ async function callMethod(args: Args): Promise { // Resources methods else if (args.method === "resources/list") { result = { - resources: await inspectorClient.listResources(args.metadata), + resources: await inspectorClient.listAllResources(args.metadata), }; } else if (args.method === "resources/read") { if (!args.uri) { @@ -234,14 +234,14 @@ async function callMethod(args: Args): Promise { result = invocation.result; } else if (args.method === "resources/templates/list") { result = { - resourceTemplates: await inspectorClient.listResourceTemplates( + resourceTemplates: await inspectorClient.listAllResourceTemplates( args.metadata, ), }; } // Prompts methods else if (args.method === "prompts/list") { - result = { prompts: await inspectorClient.listPrompts(args.metadata) }; + result = { prompts: await inspectorClient.listAllPrompts(args.metadata) }; } else if (args.method === "prompts/get") { if (!args.promptName) { throw new Error( diff --git a/docs/tui-web-client-feature-gaps.md b/docs/tui-web-client-feature-gaps.md index 1f82a0ede..f05bcf300 100644 --- a/docs/tui-web-client-feature-gaps.md +++ b/docs/tui-web-client-feature-gaps.md @@ -17,20 +17,20 @@ This document details the feature gaps between the TUI (Terminal User Interface) | Read templated resources | ✅ | ✅ | ✅ | - | | Resource subscriptions | ✅ | ✅ | ❌ | Medium | | Resources listChanged notifications | ✅ | ✅ | ❌ | Medium | -| Pagination (resources) | ❌ | ✅ | ❌ | Low | -| Pagination (resource templates) | ❌ | ✅ | ❌ | Low | +| Pagination (resources) | ✅ | ✅ | ✅ | - | +| Pagination (resource templates) | ✅ | ✅ | ✅ | - | | **Prompts** | | List prompts | ✅ | ✅ | ✅ | - | | Get prompt (no params) | ✅ | ✅ | ✅ | - | | Get prompt (with params) | ✅ | ✅ | ✅ | - | | Prompts listChanged notifications | ✅ | ✅ | ❌ | Medium | -| Pagination (prompts) | ❌ | ✅ | ❌ | Low | +| Pagination (prompts) | ✅ | ✅ | ✅ | - | | **Tools** | | List tools | ✅ | ✅ | ✅ | - | | Call tool | ✅ | ✅ | ✅ | - | | Tools listChanged notifications | ✅ | ✅ | ❌ | Medium | | Tool call progress tracking | ❌ | ✅ | ❌ | Medium | -| Pagination (tools) | ❌ | ✅ | ❌ | Low | +| Pagination (tools) | ✅ | ✅ | ✅ | - | | **Roots** | | List roots | ✅ | ✅ | ❌ | Medium | | Set roots | ✅ | ✅ | ❌ | Medium | @@ -283,14 +283,37 @@ MCP servers can send `listChanged` notifications when the list of tools, resourc **TUI Status:** -- ❌ No UI handling for `listChanged` notifications (though InspectorClient handles them automatically) -- ❌ No UI indication when lists are auto-refreshed +- ✅ `listChanged` notifications automatically handled by `InspectorClient` - **COMPLETED** +- ✅ Lists automatically reload when notifications are received - **COMPLETED** +- ✅ Events dispatched (`toolsChange`, `resourcesChange`, `promptsChange`) - **COMPLETED** +- ✅ TUI automatically reflects changes when events are received - **COMPLETED** (if TUI listens to these events) +- ❌ No UI indication when lists are auto-refreshed (optional, but useful for debugging) + +**Note on TUI Support:** + +The TUI automatically supports `listChanged` notifications through `InspectorClient`. The implementation works as follows: + +1. **Server Capability**: The MCP server must advertise `listChanged` capability in its server capabilities (e.g., `tools: { listChanged: true }`, `resources: { listChanged: true }`, `prompts: { listChanged: true }`) + +2. **Automatic Handler Registration**: When `InspectorClient` connects, it checks if the server advertises `listChanged` capability. If it does, `InspectorClient` automatically registers notification handlers for: + - `notifications/tools/list_changed` + - `notifications/resources/list_changed` + - `notifications/prompts/list_changed` + +3. **Automatic List Reload**: When a `listChanged` notification is received, `InspectorClient` automatically calls the corresponding `listAll*()` method to reload the list + +4. **Event Dispatching**: `InspectorClient` dispatches events (`toolsChange`, `resourcesChange`, `resourceTemplatesChange`, `promptsChange`) that the TUI can listen to + +5. **TUI Auto-Refresh**: The TUI will automatically reflect changes if it listens to these events (which it should, as it uses `InspectorClient`) + +**Important**: The client does NOT need to advertise `listChanged` capability - it only needs to check if the server supports it. The handlers are registered automatically based on server capabilities. **Implementation Requirements:** - ✅ Add notification handlers in `InspectorClient.connect()` for `listChanged` notifications - **COMPLETED** - ✅ When a `listChanged` notification is received, automatically call the corresponding `list*()` method - **COMPLETED** - ✅ Dispatch events to notify UI of list changes - **COMPLETED** +- ✅ TUI inherits support automatically through `InspectorClient` - **COMPLETED** - ❌ Add UI in TUI to handle and display these notifications (optional, but useful for debugging) **Code References:** @@ -413,70 +436,7 @@ Custom headers are used to send additional HTTP headers when connecting to MCP s - `InspectorClient`: `shared/mcp/config.ts` (lines 118-129) - Headers in `MCPServerConfig` - `InspectorClient`: `shared/mcp/transport.ts` (lines 100-134) - Headers passed to SDK transports -### 9. Pagination Support - -**Use Case:** - -MCP servers can return large lists of items (tools, resources, resource templates, prompts) that need to be paginated. The MCP protocol uses cursor-based pagination where: - -- Clients can pass an optional `cursor` parameter to request the next page -- Servers return a `nextCursor` in the response if more results are available -- Clients can make multiple requests to fetch all items - -**Web Client Support:** - -- **Cursor Management**: Tracks `nextCursor` state for each list type: - - `nextResourceCursor` for resources - - `nextResourceTemplateCursor` for resource templates - - `nextPromptCursor` for prompts - - `nextToolCursor` for tools -- **Pagination Requests**: Passes `cursor` parameter in list requests: - - `listResources()`: `params: nextResourceCursor ? { cursor: nextResourceCursor } : {}` - - `listResourceTemplates()`: `params: nextResourceTemplateCursor ? { cursor: nextResourceTemplateCursor } : {}` - - `listPrompts()`: `params: nextPromptCursor ? { cursor: nextPromptCursor } : {}` - - `listTools()`: `params: nextToolCursor ? { cursor: nextToolCursor } : {}` -- **Accumulation**: Appends new results to existing arrays: `setResources(resources.concat(response.resources ?? []))` -- **Cursor Updates**: Updates cursor state after each request: `setNextResourceCursor(response.nextCursor)` - -**InspectorClient Status:** - -- ❌ `listResources()` - Returns `Resource[]` directly, doesn't expose `nextCursor` -- ❌ `listResourceTemplates()` - Returns `ResourceTemplate[]` directly, doesn't expose `nextCursor` -- ❌ `listPrompts()` - Returns `Prompt[]` directly, doesn't expose `nextCursor` -- ❌ `listTools()` - Returns `Tool[]` directly, doesn't expose `nextCursor` -- ❌ No cursor parameter support in list methods -- ❌ No pagination helper methods - -**TUI Status:** - -- ❌ No pagination support -- ❌ No cursor tracking -- ❌ No "Load More" UI or automatic pagination - -**Implementation Requirements:** - -- Add cursor parameter support to `InspectorClient` list methods: - - `listResources(cursor?, metadata?)` - Accept optional cursor, return `{ resources: Resource[], nextCursor?: string }` - - `listResourceTemplates(cursor?, metadata?)` - Accept optional cursor, return `{ resourceTemplates: ResourceTemplate[], nextCursor?: string }` - - `listPrompts(cursor?, metadata?)` - Accept optional cursor, return `{ prompts: Prompt[], nextCursor?: string }` - - `listTools(cursor?, metadata?)` - Accept optional cursor, return `{ tools: Tool[], nextCursor?: string }` -- Add pagination helper methods (optional): - - `listAllResources()` - Automatically fetches all pages - - `listAllResourceTemplates()` - Automatically fetches all pages - - `listAllPrompts()` - Automatically fetches all pages - - `listAllTools()` - Automatically fetches all pages -- Add UI in TUI for pagination: - - "Load More" buttons when `nextCursor` is present - - Or automatic pagination (fetch all pages on initial load) - - Display pagination status (e.g., "Showing 50 of 200 items") - -**Code References:** - -- Web client: `client/src/App.tsx` (lines 718-838) - Cursor state management and pagination requests -- SDK types: `ListResourcesResult`, `ListResourceTemplatesResult`, `ListPromptsResult`, `ListToolsResult` all extend `PaginatedResult` with `nextCursor?: Cursor` -- SDK types: `PaginatedRequestParams` includes `cursor?: Cursor` - -### 10. Tool Call Progress Tracking +### 9. Tool Call Progress Tracking **Use Case:** @@ -631,12 +591,12 @@ Based on this analysis, `InspectorClient` needs the following additions: - ❌ Integration into TUI for managing roots 8. **Pagination Support**: - - ❌ Cursor parameter support in `listResources()` - Needs to be added - - ❌ Cursor parameter support in `listResourceTemplates()` - Needs to be added - - ❌ Cursor parameter support in `listPrompts()` - Needs to be added - - ❌ Cursor parameter support in `listTools()` - Needs to be added - - ❌ Return `nextCursor` from list methods - Needs to be added - - ❌ Optional pagination helper methods (`listAll*()`) - Needs to be added + - ✅ Cursor parameter support in `listResources()` - **COMPLETED** + - ✅ Cursor parameter support in `listResourceTemplates()` - **COMPLETED** + - ✅ Cursor parameter support in `listPrompts()` - **COMPLETED** + - ✅ Cursor parameter support in `listTools()` - **COMPLETED** + - ✅ Return `nextCursor` from list methods - **COMPLETED** + - ✅ Pagination helper methods (`listAll*()`) - **COMPLETED** 9. **Tool Call Progress Tracking**: - ❌ Progress token generation - Needs to be added @@ -654,7 +614,7 @@ Based on this analysis, `InspectorClient` needs the following additions: - **Elicitation**: `InspectorClient` has full elicitation support. Web client UI displays and handles elicitation requests. TUI needs UI to display and handle elicitation requests. - **ListChanged Notifications**: Web client handles `listChanged` notifications for tools, resources, and prompts, automatically refreshing lists when notifications are received. `InspectorClient` now fully supports these notifications with automatic list refresh, cache preservation/cleanup, and configurable handlers. TUI automatically benefits from this functionality but doesn't have UI to display notification events. - **Roots**: `InspectorClient` has full roots support with `getRoots()` and `setRoots()` methods, handler for `roots/list` requests, and notification support. Web client has a `RootsTab` UI for managing roots. TUI does not yet have UI for managing roots. -- **Pagination**: Web client supports cursor-based pagination for all list methods (tools, resources, resource templates, prompts), tracking `nextCursor` state and making multiple requests to fetch all items. `InspectorClient` currently returns arrays directly without exposing pagination. TUI does not support pagination. +- **Pagination**: Web client supports cursor-based pagination for all list methods (tools, resources, resource templates, prompts), tracking `nextCursor` state and making multiple requests to fetch all items. `InspectorClient` now fully supports pagination with cursor parameters in all list methods and `listAll*()` helper methods that automatically fetch all pages. TUI inherits this pagination support from `InspectorClient`. - **Progress Tracking**: Web client supports progress tracking for tool calls by generating `progressToken` values, setting up `onprogress` callbacks, and displaying progress notifications. `InspectorClient` does not yet support progress tracking. TUI does not support progress tracking. ## Related Documentation diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index e9c331d23..73ac93d80 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -22,6 +22,10 @@ import { createTestCwdResource, createSimplePrompt, createUserResourceTemplate, + createNumberedTools, + createNumberedResources, + createNumberedResourceTemplates, + createNumberedPrompts, } from "../test/test-server-fixtures.js"; import type { MessageEntry } from "../mcp/types.js"; import type { @@ -141,7 +145,7 @@ describe("InspectorClient", () => { await client.connect(); // Make a request to generate messages - await client.listTools(); + await client.listAllTools(); const firstConnectMessages = client.getMessages(); expect(firstConnectMessages.length).toBeGreaterThan(0); @@ -181,7 +185,7 @@ describe("InspectorClient", () => { ); await client.connect(); - await client.listTools(); + await client.listAllTools(); const messages = client.getMessages(); expect(messages.length).toBeGreaterThan(0); @@ -205,7 +209,7 @@ describe("InspectorClient", () => { ); await client.connect(); - await client.listTools(); + await client.listAllTools(); const messages = client.getMessages(); const request = messages.find((m) => m.direction === "request"); @@ -233,7 +237,7 @@ describe("InspectorClient", () => { // Make multiple requests to exceed the limit for (let i = 0; i < 10; i++) { - await client.listTools(); + await client.listAllTools(); } expect(client.getMessages().length).toBeLessThanOrEqual(5); @@ -258,7 +262,7 @@ describe("InspectorClient", () => { }); await client.connect(); - await client.listTools(); + await client.listAllTools(); expect(messageEvents.length).toBeGreaterThan(0); }); @@ -281,7 +285,7 @@ describe("InspectorClient", () => { }); await client.connect(); - await client.listTools(); + await client.listAllTools(); expect(changeCount).toBeGreaterThan(0); }); @@ -307,7 +311,7 @@ describe("InspectorClient", () => { ); await client.connect(); - await client.listTools(); + await client.listAllTools(); const fetchRequests = client.getFetchRequests(); expect(fetchRequests.length).toBeGreaterThan(0); @@ -337,7 +341,7 @@ describe("InspectorClient", () => { ); await client.connect(); - await client.listTools(); + await client.listAllTools(); const fetchRequests = client.getFetchRequests(); expect(fetchRequests.length).toBeGreaterThan(0); @@ -367,7 +371,7 @@ describe("InspectorClient", () => { ); await client.connect(); - await client.listTools(); + await client.listAllTools(); const fetchRequests = client.getFetchRequests(); expect(fetchRequests.length).toBeGreaterThan(0); @@ -404,7 +408,7 @@ describe("InspectorClient", () => { // Make multiple requests to exceed the limit for (let i = 0; i < 10; i++) { - await client.listTools(); + await client.listAllTools(); } expect(client.getFetchRequests().length).toBeLessThanOrEqual(3); @@ -434,7 +438,7 @@ describe("InspectorClient", () => { }); await client.connect(); - await client.listTools(); + await client.listAllTools(); expect(fetchRequestEvents.length).toBeGreaterThan(0); }); @@ -462,7 +466,7 @@ describe("InspectorClient", () => { }); await client.connect(); - await client.listTools(); + await client.listAllTools(); expect(changeFired).toBe(true); }); @@ -546,7 +550,7 @@ describe("InspectorClient", () => { }); it("should list tools", async () => { - const tools = await client.listTools(); + const tools = await client.listAllTools(); expect(Array.isArray(tools)).toBe(true); expect(tools.length).toBeGreaterThan(0); }); @@ -604,6 +608,71 @@ describe("InspectorClient", () => { expect(content[0].text).toContain("not found"); } }); + + it("should paginate tools when maxPageSize is set", async () => { + // Disconnect and create a new server with pagination + await client.disconnect(); + if (server) { + await server.stop(); + } + + // Create server with 10 tools and page size of 3 + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: createNumberedTools(10), + maxPageSize: { + tools: 3, + }, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + clientIdentity: { name: "test", version: "1.0.0" }, + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // First page should have 3 tools + const page1 = await client.listTools(); + expect(page1.tools.length).toBe(3); + expect(page1.nextCursor).toBeDefined(); + expect(page1.tools[0]?.name).toBe("tool-1"); + expect(page1.tools[1]?.name).toBe("tool-2"); + expect(page1.tools[2]?.name).toBe("tool-3"); + + // Second page should have 3 more tools + const page2 = await client.listTools(page1.nextCursor); + expect(page2.tools.length).toBe(3); + expect(page2.nextCursor).toBeDefined(); + expect(page2.tools[0]?.name).toBe("tool-4"); + expect(page2.tools[1]?.name).toBe("tool-5"); + expect(page2.tools[2]?.name).toBe("tool-6"); + + // Third page should have 3 more tools + const page3 = await client.listTools(page2.nextCursor); + expect(page3.tools.length).toBe(3); + expect(page3.nextCursor).toBeDefined(); + expect(page3.tools[0]?.name).toBe("tool-7"); + expect(page3.tools[1]?.name).toBe("tool-8"); + expect(page3.tools[2]?.name).toBe("tool-9"); + + // Fourth page should have 1 tool and no next cursor + const page4 = await client.listTools(page3.nextCursor); + expect(page4.tools.length).toBe(1); + expect(page4.nextCursor).toBeUndefined(); + expect(page4.tools[0]?.name).toBe("tool-10"); + + // listAllTools should get all 10 tools + const allTools = await client.listAllTools(); + expect(allTools.length).toBe(10); + }); }); describe("Resource Methods", () => { @@ -622,13 +691,13 @@ describe("InspectorClient", () => { }); it("should list resources", async () => { - const resources = await client.listResources(); + const resources = await client.listAllResources(); expect(Array.isArray(resources)).toBe(true); }); it("should read resource", async () => { // First get list of resources - const resources = await client.listResources(); + const resources = await client.listAllResources(); if (resources.length > 0) { const uri = resources[0]!.uri; const readResult = await client.readResource(uri); @@ -636,6 +705,71 @@ describe("InspectorClient", () => { expect(readResult.result).toHaveProperty("contents"); } }); + + it("should paginate resources when maxPageSize is set", async () => { + // Disconnect and create a new server with pagination + await client.disconnect(); + if (server) { + await server.stop(); + } + + // Create server with 10 resources and page size of 3 + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resources: createNumberedResources(10), + maxPageSize: { + resources: 3, + }, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + clientIdentity: { name: "test", version: "1.0.0" }, + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // First page should have 3 resources + const page1 = await client.listResources(); + expect(page1.resources.length).toBe(3); + expect(page1.nextCursor).toBeDefined(); + expect(page1.resources[0]?.uri).toBe("test://resource-1"); + expect(page1.resources[1]?.uri).toBe("test://resource-2"); + expect(page1.resources[2]?.uri).toBe("test://resource-3"); + + // Second page should have 3 more resources + const page2 = await client.listResources(page1.nextCursor); + expect(page2.resources.length).toBe(3); + expect(page2.nextCursor).toBeDefined(); + expect(page2.resources[0]?.uri).toBe("test://resource-4"); + expect(page2.resources[1]?.uri).toBe("test://resource-5"); + expect(page2.resources[2]?.uri).toBe("test://resource-6"); + + // Third page should have 3 more resources + const page3 = await client.listResources(page2.nextCursor); + expect(page3.resources.length).toBe(3); + expect(page3.nextCursor).toBeDefined(); + expect(page3.resources[0]?.uri).toBe("test://resource-7"); + expect(page3.resources[1]?.uri).toBe("test://resource-8"); + expect(page3.resources[2]?.uri).toBe("test://resource-9"); + + // Fourth page should have 1 resource and no next cursor + const page4 = await client.listResources(page3.nextCursor); + expect(page4.resources.length).toBe(1); + expect(page4.nextCursor).toBeUndefined(); + expect(page4.resources[0]?.uri).toBe("test://resource-10"); + + // listAllResources should get all 10 resources + const allResources = await client.listAllResources(); + expect(allResources.length).toBe(10); + }); }); describe("Resource Template Methods", () => { @@ -661,7 +795,7 @@ describe("InspectorClient", () => { }); it("should list resource templates", async () => { - const resourceTemplates = await client.listResourceTemplates(); + const resourceTemplates = await client.listAllResourceTemplates(); expect(Array.isArray(resourceTemplates)).toBe(true); expect(resourceTemplates.length).toBeGreaterThan(0); @@ -673,7 +807,7 @@ describe("InspectorClient", () => { it("should read resource from template", async () => { // First get the template - const templates = await client.listResourceTemplates(); + const templates = await client.listAllResourceTemplates(); const fileTemplate = templates.find((t) => t.name === "file"); expect(fileTemplate).toBeDefined(); @@ -729,7 +863,7 @@ describe("InspectorClient", () => { await client.connect(); // Call listResources - this should include resources from the template's list callback - const resources = await client.listResources(); + const resources = await client.listAllResources(); expect(Array.isArray(resources)).toBe(true); // Verify that the resources from the list callback are included @@ -738,6 +872,91 @@ describe("InspectorClient", () => { expect(uris).toContain("file:///file2.txt"); expect(uris).toContain("file:///file3.txt"); }); + + it("should paginate resource templates when maxPageSize is set", async () => { + // Disconnect and create a new server with pagination + await client.disconnect(); + if (server) { + await server.stop(); + } + + // Create server with 10 resource templates and page size of 3 + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + resourceTemplates: createNumberedResourceTemplates(10), + maxPageSize: { + resourceTemplates: 3, + }, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + clientIdentity: { name: "test", version: "1.0.0" }, + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // First page should have 3 templates + const page1 = await client.listResourceTemplates(); + expect(page1.resourceTemplates.length).toBe(3); + expect(page1.nextCursor).toBeDefined(); + expect(page1.resourceTemplates[0]?.uriTemplate).toBe( + "test://template-1/{param}", + ); + expect(page1.resourceTemplates[1]?.uriTemplate).toBe( + "test://template-2/{param}", + ); + expect(page1.resourceTemplates[2]?.uriTemplate).toBe( + "test://template-3/{param}", + ); + + // Second page should have 3 more templates + const page2 = await client.listResourceTemplates(page1.nextCursor); + expect(page2.resourceTemplates.length).toBe(3); + expect(page2.nextCursor).toBeDefined(); + expect(page2.resourceTemplates[0]?.uriTemplate).toBe( + "test://template-4/{param}", + ); + expect(page2.resourceTemplates[1]?.uriTemplate).toBe( + "test://template-5/{param}", + ); + expect(page2.resourceTemplates[2]?.uriTemplate).toBe( + "test://template-6/{param}", + ); + + // Third page should have 3 more templates + const page3 = await client.listResourceTemplates(page2.nextCursor); + expect(page3.resourceTemplates.length).toBe(3); + expect(page3.nextCursor).toBeDefined(); + expect(page3.resourceTemplates[0]?.uriTemplate).toBe( + "test://template-7/{param}", + ); + expect(page3.resourceTemplates[1]?.uriTemplate).toBe( + "test://template-8/{param}", + ); + expect(page3.resourceTemplates[2]?.uriTemplate).toBe( + "test://template-9/{param}", + ); + + // Fourth page should have 1 template and no next cursor + const page4 = await client.listResourceTemplates(page3.nextCursor); + expect(page4.resourceTemplates.length).toBe(1); + expect(page4.nextCursor).toBeUndefined(); + expect(page4.resourceTemplates[0]?.uriTemplate).toBe( + "test://template-10/{param}", + ); + + // listAllResourceTemplates should get all 10 templates + const allTemplates = await client.listAllResourceTemplates(); + expect(allTemplates.length).toBe(10); + }); }); describe("Prompt Methods", () => { @@ -756,9 +975,74 @@ describe("InspectorClient", () => { }); it("should list prompts", async () => { - const prompts = await client.listPrompts(); + const prompts = await client.listAllPrompts(); expect(Array.isArray(prompts)).toBe(true); }); + + it("should paginate prompts when maxPageSize is set", async () => { + // Disconnect and create a new server with pagination + await client.disconnect(); + if (server) { + await server.stop(); + } + + // Create server with 10 prompts and page size of 3 + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + prompts: createNumberedPrompts(10), + maxPageSize: { + prompts: 3, + }, + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + clientIdentity: { name: "test", version: "1.0.0" }, + autoFetchServerContents: false, + }, + ); + + await client.connect(); + + // First page should have 3 prompts + const page1 = await client.listPrompts(); + expect(page1.prompts.length).toBe(3); + expect(page1.nextCursor).toBeDefined(); + expect(page1.prompts[0]?.name).toBe("prompt-1"); + expect(page1.prompts[1]?.name).toBe("prompt-2"); + expect(page1.prompts[2]?.name).toBe("prompt-3"); + + // Second page should have 3 more prompts + const page2 = await client.listPrompts(page1.nextCursor); + expect(page2.prompts.length).toBe(3); + expect(page2.nextCursor).toBeDefined(); + expect(page2.prompts[0]?.name).toBe("prompt-4"); + expect(page2.prompts[1]?.name).toBe("prompt-5"); + expect(page2.prompts[2]?.name).toBe("prompt-6"); + + // Third page should have 3 more prompts + const page3 = await client.listPrompts(page2.nextCursor); + expect(page3.prompts.length).toBe(3); + expect(page3.nextCursor).toBeDefined(); + expect(page3.prompts[0]?.name).toBe("prompt-7"); + expect(page3.prompts[1]?.name).toBe("prompt-8"); + expect(page3.prompts[2]?.name).toBe("prompt-9"); + + // Fourth page should have 1 prompt and no next cursor + const page4 = await client.listPrompts(page3.nextCursor); + expect(page4.prompts.length).toBe(1); + expect(page4.nextCursor).toBeUndefined(); + expect(page4.prompts[0]?.name).toBe("prompt-10"); + + // listAllPrompts should get all 10 prompts + const allPrompts = await client.listAllPrompts(); + expect(allPrompts.length).toBe(10); + }); }); describe("Logging", () => { @@ -1675,7 +1959,7 @@ describe("InspectorClient", () => { expect(client.cache).toBeDefined(); // Populate cache by calling fetch methods - const resources = await client.listResources(); + const resources = await client.listAllResources(); let resourceUri: string | undefined; if (resources.length > 0 && resources[0]) { resourceUri = resources[0].uri; @@ -1683,7 +1967,7 @@ describe("InspectorClient", () => { expect(client.cache.getResource(resourceUri)).not.toBeNull(); } - const tools = await client.listTools(); + const tools = await client.listAllTools(); let toolName: string | undefined; if (tools.length > 0 && tools[0]) { toolName = tools[0].name; @@ -1691,7 +1975,7 @@ describe("InspectorClient", () => { expect(client.cache.getToolCallResult(toolName)).not.toBeNull(); } - const prompts = await client.listPrompts(); + const prompts = await client.listAllPrompts(); let promptName: string | undefined; if (prompts.length > 0 && prompts[0]) { promptName = prompts[0].name; @@ -2208,7 +2492,7 @@ describe("InspectorClient", () => { await server.stop(); }); - it("should update state and dispatch event when listTools() is called", async () => { + it("should update state and dispatch event when listAllTools() is called", async () => { server = createTestServerHttp({ serverInfo: createTestServerInfo(), tools: [createEchoTool()], @@ -2241,7 +2525,7 @@ describe("InspectorClient", () => { ); }); - const tools = await client.listTools(); + const tools = await client.listAllTools(); const event = await toolsChangePromise; expect(tools.length).toBeGreaterThan(0); @@ -2290,7 +2574,7 @@ describe("InspectorClient", () => { ); }); - const resources = await client.listResources(); + const resources = await client.listAllResources(); const event = await resourcesChangePromise; expect(resources.length).toBeGreaterThan(0); @@ -2371,7 +2655,7 @@ describe("InspectorClient", () => { await server.stop(); }); - it("should update state, clean cache, and dispatch event when listResourceTemplates() is called", async () => { + it("should update state, clean cache, and dispatch event when listAllResourceTemplates() is called", async () => { server = createTestServerHttp({ serverInfo: createTestServerInfo(), resourceTemplates: [createFileResourceTemplate()], @@ -2391,7 +2675,7 @@ describe("InspectorClient", () => { await client.connect(); // First list resource templates to populate the list - await client.listResourceTemplates(); + await client.listAllResourceTemplates(); // Load a resource template to populate cache const uriTemplate = "file:///{path}"; @@ -2411,7 +2695,7 @@ describe("InspectorClient", () => { }, ); - const templates = await client.listResourceTemplates(); + const templates = await client.listAllResourceTemplates(); const event = await resourceTemplatesChangePromise; expect(templates.length).toBeGreaterThan(0); @@ -2424,7 +2708,7 @@ describe("InspectorClient", () => { await server.stop(); }); - it("should update state, clean cache, and dispatch event when listPrompts() is called", async () => { + it("should update state, clean cache, and dispatch event when listAllPrompts() is called", async () => { server = createTestServerHttp({ serverInfo: createTestServerInfo(), prompts: [createSimplePrompt()], @@ -2444,7 +2728,7 @@ describe("InspectorClient", () => { await client.connect(); // First list prompts to populate the list - await client.listPrompts(); + await client.listAllPrompts(); // Load a prompt to populate cache const promptName = "simple-prompt"; @@ -2462,7 +2746,7 @@ describe("InspectorClient", () => { ); }); - const prompts = await client.listPrompts(); + const prompts = await client.listAllPrompts(); const event = await promptsChangePromise; expect(prompts.length).toBeGreaterThan(0); @@ -2730,9 +3014,9 @@ describe("InspectorClient", () => { expect(finalTools.length).toBe(initialToolCount); expect(finalTools).toEqual(initialTools); - // Verify the tool was actually added to the server by manually calling listTools() + // Verify the tool was actually added to the server by manually calling listAllTools() // This proves the server received the addTool call and the notification was sent - const serverTools = await client.listTools(); + const serverTools = await client.listAllTools(); expect(serverTools.length).toBeGreaterThan(initialToolCount); expect(serverTools.find((t) => t.name === "testTool")).toBeDefined(); @@ -2960,7 +3244,7 @@ describe("InspectorClient", () => { await client.connect(); // First list resource templates to populate the list - await client.listResourceTemplates(); + await client.listAllResourceTemplates(); // Load both templates to populate cache const uriTemplate1 = "file:///{path}"; @@ -2992,13 +3276,13 @@ describe("InspectorClient", () => { await client.connect(); // First list resource templates to populate the list - await client.listResourceTemplates(); + await client.listAllResourceTemplates(); // Load uriTemplate1 again to populate cache await client.readResourceFromTemplate(uriTemplate1, { path: "test.txt" }); // List resource templates (should only have uriTemplate1 now) - await client.listResourceTemplates(); + await client.listAllResourceTemplates(); // Cache for uriTemplate1 should be preserved, uriTemplate2 should be cleared expect(client.cache.getResourceTemplate(uriTemplate1)).not.toBeNull(); @@ -3028,7 +3312,7 @@ describe("InspectorClient", () => { await client.connect(); // First list prompts to populate the list - await client.listPrompts(); + await client.listAllPrompts(); // Load both prompts to populate cache const promptName1 = "simple-prompt"; @@ -3060,13 +3344,13 @@ describe("InspectorClient", () => { await client.connect(); // First list prompts to populate the list - await client.listPrompts(); + await client.listAllPrompts(); // Load promptName1 again to populate cache await client.getPrompt(promptName1); // List prompts (should only have promptName1 now) - await client.listPrompts(); + await client.listAllPrompts(); // Cache for promptName1 should be preserved, promptName2 should be cleared expect(client.cache.getPrompt(promptName1)).not.toBeNull(); diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index 5a082b81c..e9e99590b 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -232,6 +232,9 @@ export class ElicitationCreateMessage { * - EventTarget interface for React hooks (cross-platform: works in browser and Node.js) * - Access to client functionality (prompts, resources, tools) */ +// Maximum number of pages to fetch when paginating through lists +const MAX_PAGES = 100; + export class InspectorClient extends EventTarget { private client: Client | null = null; private transport: any = null; @@ -523,7 +526,7 @@ export class InspectorClient extends EventTarget { this.client.setNotificationHandler( ToolListChangedNotificationSchema, async () => { - await this.listTools(); + await this.listAllTools(); }, ); } @@ -539,8 +542,8 @@ export class InspectorClient extends EventTarget { ResourceListChangedNotificationSchema, async () => { // Resource templates are part of the resources capability - await this.listResources(); - await this.listResourceTemplates(); + await this.listAllResources(); + await this.listAllResourceTemplates(); }, ); } @@ -553,7 +556,7 @@ export class InspectorClient extends EventTarget { this.client.setNotificationHandler( PromptListChangedNotificationSchema, async () => { - await this.listPrompts(); + await this.listAllPrompts(); }, ); } @@ -832,17 +835,61 @@ export class InspectorClient extends EventTarget { * @param metadata Optional metadata to include in the request * @returns Array of tools */ - private async listToolsInternal( + private async listAllToolsInternal( metadata?: Record, ): Promise { if (!this.client) { throw new Error("Client is not connected"); } try { - const params = + const allTools: Tool[] = []; + let cursor: string | undefined; + let pageCount = 0; + + do { + const result = await this.listTools(cursor, metadata); + allTools.push(...result.tools); + cursor = result.nextCursor; + pageCount++; + if (pageCount >= MAX_PAGES) { + throw new Error( + `Maximum pagination limit (${MAX_PAGES} pages) reached while listing tools`, + ); + } + } while (cursor); + + return allTools; + } catch (error) { + throw new Error( + `Failed to list tools: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + + /** + * List available tools with pagination support + * @param cursor Optional cursor for pagination + * @param metadata Optional metadata to include in the request + * @returns Object containing tools array and optional nextCursor + */ + async listTools( + cursor?: string, + metadata?: Record, + ): Promise<{ tools: Tool[]; nextCursor?: string }> { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + const params: any = metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; + if (cursor) { + params.cursor = cursor; + } const response = await this.client.listTools(params); - return response.tools || []; + return { + tools: response.tools || [], + nextCursor: response.nextCursor, + }; } catch (error) { throw new Error( `Failed to list tools: ${error instanceof Error ? error.message : String(error)}`, @@ -851,19 +898,20 @@ export class InspectorClient extends EventTarget { } /** - * List available tools + * List all available tools (fetches all pages) * @param metadata Optional metadata to include in the request - * @returns Array of tools + * @returns Array of all tools */ - async listTools(metadata?: Record): Promise { + async listAllTools(metadata?: Record): Promise { if (!this.client) { throw new Error("Client is not connected"); } try { - const newTools = await this.listToolsInternal(metadata); + const allTools = await this.listAllToolsInternal(metadata); + // Find removed tool names by comparing with current tools const currentNames = new Set(this.tools.map((t) => t.name)); - const newNames = new Set(newTools.map((t) => t.name)); + const newNames = new Set(allTools.map((t) => t.name)); // Clear cache for removed tools for (const name of currentNames) { if (!newNames.has(name)) { @@ -871,15 +919,15 @@ export class InspectorClient extends EventTarget { } } // Update internal state - this.tools = newTools; + this.tools = allTools; // Dispatch change event this.dispatchEvent( new CustomEvent("toolsChange", { detail: this.tools }), ); - return newTools; + return allTools; } catch (error) { throw new Error( - `Failed to list tools: ${error instanceof Error ? error.message : String(error)}`, + `Failed to list all tools: ${error instanceof Error ? error.message : String(error)}`, ); } } @@ -902,7 +950,7 @@ export class InspectorClient extends EventTarget { throw new Error("Client is not connected"); } try { - const tools = await this.listToolsInternal(generalMetadata); + const tools = await this.listAllToolsInternal(generalMetadata); const tool = tools.find((t) => t.name === name); let convertedArgs: Record = args; @@ -1019,22 +1067,67 @@ export class InspectorClient extends EventTarget { } /** - * List available resources + * List available resources with pagination support + * @param cursor Optional cursor for pagination * @param metadata Optional metadata to include in the request - * @returns Array of resources + * @returns Object containing resources array and optional nextCursor */ - async listResources(metadata?: Record): Promise { + async listResources( + cursor?: string, + metadata?: Record, + ): Promise<{ resources: Resource[]; nextCursor?: string }> { if (!this.client) { throw new Error("Client is not connected"); } try { - const params = + const params: any = metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; + if (cursor) { + params.cursor = cursor; + } const response = await this.client.listResources(params); - const newResources = response.resources || []; + return { + resources: response.resources || [], + nextCursor: response.nextCursor, + }; + } catch (error) { + throw new Error( + `Failed to list resources: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + + /** + * List all available resources (fetches all pages) + * @param metadata Optional metadata to include in the request + * @returns Array of all resources + */ + async listAllResources( + metadata?: Record, + ): Promise { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + const allResources: Resource[] = []; + let cursor: string | undefined; + let pageCount = 0; + + do { + const result = await this.listResources(cursor, metadata); + allResources.push(...result.resources); + cursor = result.nextCursor; + pageCount++; + if (pageCount >= MAX_PAGES) { + throw new Error( + `Maximum pagination limit (${MAX_PAGES} pages) reached while listing resources`, + ); + } + } while (cursor); + // Find removed URIs by comparing with current resources const currentUris = new Set(this.resources.map((r) => r.uri)); - const newUris = new Set(newResources.map((r) => r.uri)); + const newUris = new Set(allResources.map((r) => r.uri)); // Clear cache for removed resources for (const uri of currentUris) { if (!newUris.has(uri)) { @@ -1042,16 +1135,16 @@ export class InspectorClient extends EventTarget { } } // Update internal state - this.resources = newResources; + this.resources = allResources; // Dispatch change event this.dispatchEvent( new CustomEvent("resourcesChange", { detail: this.resources }), ); // Note: Cached content for existing resources is automatically preserved - return newResources; + return allResources; } catch (error) { throw new Error( - `Failed to list resources: ${error instanceof Error ? error.message : String(error)}`, + `Failed to list all resources: ${error instanceof Error ? error.message : String(error)}`, ); } } @@ -1181,26 +1274,69 @@ export class InspectorClient extends EventTarget { } /** - * List resource templates + * List resource templates with pagination support + * @param cursor Optional cursor for pagination * @param metadata Optional metadata to include in the request - * @returns Array of resource templates + * @returns Object containing resourceTemplates array and optional nextCursor */ async listResourceTemplates( + cursor?: string, metadata?: Record, - ): Promise { + ): Promise<{ resourceTemplates: ResourceTemplate[]; nextCursor?: string }> { if (!this.client) { throw new Error("Client is not connected"); } try { - const params = + const params: any = metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; + if (cursor) { + params.cursor = cursor; + } const response = await this.client.listResourceTemplates(params); - const newTemplates = response.resourceTemplates || []; + return { + resourceTemplates: response.resourceTemplates || [], + nextCursor: response.nextCursor, + }; + } catch (error) { + throw new Error( + `Failed to list resource templates: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + + /** + * List all resource templates (fetches all pages) + * @param metadata Optional metadata to include in the request + * @returns Array of all resource templates + */ + async listAllResourceTemplates( + metadata?: Record, + ): Promise { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + const allTemplates: ResourceTemplate[] = []; + let cursor: string | undefined; + let pageCount = 0; + + do { + const result = await this.listResourceTemplates(cursor, metadata); + allTemplates.push(...result.resourceTemplates); + cursor = result.nextCursor; + pageCount++; + if (pageCount >= MAX_PAGES) { + throw new Error( + `Maximum pagination limit (${MAX_PAGES} pages) reached while listing resource templates`, + ); + } + } while (cursor); + // Find removed uriTemplates by comparing with current templates const currentUriTemplates = new Set( this.resourceTemplates.map((t) => t.uriTemplate), ); - const newUriTemplates = new Set(newTemplates.map((t) => t.uriTemplate)); + const newUriTemplates = new Set(allTemplates.map((t) => t.uriTemplate)); // Clear cache for removed templates for (const uriTemplate of currentUriTemplates) { if (!newUriTemplates.has(uriTemplate)) { @@ -1208,7 +1344,7 @@ export class InspectorClient extends EventTarget { } } // Update internal state - this.resourceTemplates = newTemplates; + this.resourceTemplates = allTemplates; // Dispatch change event this.dispatchEvent( new CustomEvent("resourceTemplatesChange", { @@ -1216,31 +1352,74 @@ export class InspectorClient extends EventTarget { }), ); // Note: Cached content for existing templates is automatically preserved - return newTemplates; + return allTemplates; } catch (error) { throw new Error( - `Failed to list resource templates: ${error instanceof Error ? error.message : String(error)}`, + `Failed to list all resource templates: ${error instanceof Error ? error.message : String(error)}`, ); } } /** - * List available prompts + * List available prompts with pagination support + * @param cursor Optional cursor for pagination * @param metadata Optional metadata to include in the request - * @returns Array of prompts + * @returns Object containing prompts array and optional nextCursor */ - async listPrompts(metadata?: Record): Promise { + async listPrompts( + cursor?: string, + metadata?: Record, + ): Promise<{ prompts: Prompt[]; nextCursor?: string }> { if (!this.client) { throw new Error("Client is not connected"); } try { - const params = + const params: any = metadata && Object.keys(metadata).length > 0 ? { _meta: metadata } : {}; + if (cursor) { + params.cursor = cursor; + } const response = await this.client.listPrompts(params); - const newPrompts = response.prompts || []; + return { + prompts: response.prompts || [], + nextCursor: response.nextCursor, + }; + } catch (error) { + throw new Error( + `Failed to list prompts: ${error instanceof Error ? error.message : String(error)}`, + ); + } + } + + /** + * List all available prompts (fetches all pages) + * @param metadata Optional metadata to include in the request + * @returns Array of all prompts + */ + async listAllPrompts(metadata?: Record): Promise { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + const allPrompts: Prompt[] = []; + let cursor: string | undefined; + let pageCount = 0; + + do { + const result = await this.listPrompts(cursor, metadata); + allPrompts.push(...result.prompts); + cursor = result.nextCursor; + pageCount++; + if (pageCount >= MAX_PAGES) { + throw new Error( + `Maximum pagination limit (${MAX_PAGES} pages) reached while listing prompts`, + ); + } + } while (cursor); + // Find removed prompt names by comparing with current prompts const currentNames = new Set(this.prompts.map((p) => p.name)); - const newNames = new Set(newPrompts.map((p) => p.name)); + const newNames = new Set(allPrompts.map((p) => p.name)); // Clear cache for removed prompts for (const name of currentNames) { if (!newNames.has(name)) { @@ -1248,16 +1427,16 @@ export class InspectorClient extends EventTarget { } } // Update internal state - this.prompts = newPrompts; + this.prompts = allPrompts; // Dispatch change event this.dispatchEvent( new CustomEvent("promptsChange", { detail: this.prompts }), ); // Note: Cached content for existing prompts is automatically preserved - return newPrompts; + return allPrompts; } catch (error) { throw new Error( - `Failed to list prompts: ${error instanceof Error ? error.message : String(error)}`, + `Failed to list all prompts: ${error instanceof Error ? error.message : String(error)}`, ); } } @@ -1437,7 +1616,7 @@ export class InspectorClient extends EventTarget { // The list*() methods now handle state updates and event dispatching internally if (this.capabilities?.resources) { try { - await this.listResources(); + await this.listAllResources(); } catch (err) { // Ignore errors, just leave empty this.resources = []; @@ -1448,7 +1627,7 @@ export class InspectorClient extends EventTarget { // Also fetch resource templates try { - await this.listResourceTemplates(); + await this.listAllResourceTemplates(); } catch (err) { // Ignore errors, just leave empty this.resourceTemplates = []; @@ -1462,7 +1641,7 @@ export class InspectorClient extends EventTarget { if (this.capabilities?.prompts) { try { - await this.listPrompts(); + await this.listAllPrompts(); } catch (err) { // Ignore errors, just leave empty this.prompts = []; @@ -1474,7 +1653,7 @@ export class InspectorClient extends EventTarget { if (this.capabilities?.tools) { try { - await this.listTools(); + await this.listAllTools(); } catch (err) { // Ignore errors, just leave empty this.tools = []; diff --git a/shared/test/composable-test-server.ts b/shared/test/composable-test-server.ts index 10ffd0169..960cd79e2 100644 --- a/shared/test/composable-test-server.ts +++ b/shared/test/composable-test-server.ts @@ -7,11 +7,14 @@ import { McpServer, - ResourceTemplate, + ResourceTemplate as SdkResourceTemplate, } from "@modelcontextprotocol/sdk/server/mcp.js"; import type { Implementation, - ListResourcesResult, + Tool, + Resource, + ResourceTemplate, + Prompt, } from "@modelcontextprotocol/sdk/types.js"; import type { RegisteredTool, @@ -23,9 +26,31 @@ import { SetLevelRequestSchema, SubscribeRequestSchema, UnsubscribeRequestSchema, + ListToolsRequestSchema, + ListResourcesRequestSchema, + ListResourceTemplatesRequestSchema, + ListPromptsRequestSchema, + type ListToolsResult, + type ListResourcesResult, + type ListResourceTemplatesResult, + type ListPromptsResult, } from "@modelcontextprotocol/sdk/types.js"; -import { ZodRawShapeCompat } from "@modelcontextprotocol/sdk/server/zod-compat.js"; +import { + ZodRawShapeCompat, + getObjectShape, + getSchemaDescription, + isSchemaOptional, + normalizeObjectSchema, +} from "@modelcontextprotocol/sdk/server/zod-compat.js"; +import { toJsonSchemaCompat } from "@modelcontextprotocol/sdk/server/zod-json-schema-compat.js"; import { completable } from "@modelcontextprotocol/sdk/server/completable.js"; +import type { PromptArgument } from "@modelcontextprotocol/sdk/types.js"; + +// Empty object JSON schema constant (from SDK's mcp.js) +const EMPTY_OBJECT_JSON_SCHEMA = { + type: "object", + properties: {}, +} as const; type ToolInputSchema = ZodRawShapeCompat; type PromptArgsSchema = ZodRawShapeCompat; @@ -152,6 +177,16 @@ export interface ServerConfig { * If enabled, server will advertise resources.subscribe capability */ subscriptions?: boolean; // default: false + /** + * Maximum page size for pagination (optional, undefined means no pagination) + * When set, custom list handlers will paginate results using this page size + */ + maxPageSize?: { + tools?: number; + resources?: number; + resourceTemplates?: number; + prompts?: number; + }; } /** @@ -403,7 +438,7 @@ export function createMcpServer(config: ServerConfig): McpServer { } } - const resourceTemplate = new ResourceTemplate(template.uriTemplate, { + const resourceTemplate = new SdkResourceTemplate(template.uriTemplate, { list: listCallback, complete: completeCallbacks, }); @@ -493,5 +528,237 @@ export function createMcpServer(config: ServerConfig): McpServer { } } + // Set up pagination handlers if maxPageSize is configured + const maxPageSize = config.maxPageSize || {}; + + // Tools pagination + if (capabilities.tools && maxPageSize.tools !== undefined) { + mcpServer.server.setRequestHandler( + ListToolsRequestSchema, + async (request) => { + const cursor = request.params?.cursor; + const pageSize = maxPageSize.tools!; + + // Convert registered tools to Tool format using the same logic as the SDK (mcp.js lines 67-95) + const allTools: Tool[] = []; + for (const [name, registered] of state.registeredTools.entries()) { + if (registered.enabled) { + // Match SDK's approach exactly (mcp.js lines 71-95) + const toolDefinition: any = { + name, + title: registered.title, + description: registered.description, + inputSchema: (() => { + const obj = normalizeObjectSchema(registered.inputSchema); + return obj + ? toJsonSchemaCompat(obj, { + strictUnions: true, + pipeStrategy: "input", + }) + : EMPTY_OBJECT_JSON_SCHEMA; + })(), + annotations: registered.annotations, + execution: registered.execution, + _meta: registered._meta, + }; + + if (registered.outputSchema) { + const obj = normalizeObjectSchema(registered.outputSchema); + if (obj) { + toolDefinition.outputSchema = toJsonSchemaCompat(obj, { + strictUnions: true, + pipeStrategy: "output", + }); + } + } + + allTools.push(toolDefinition as Tool); + } + } + + const startIndex = cursor ? parseInt(cursor, 10) : 0; + const endIndex = startIndex + pageSize; + const page = allTools.slice(startIndex, endIndex); + const nextCursor = + endIndex < allTools.length ? endIndex.toString() : undefined; + + return { + tools: page, + nextCursor, + } as ListToolsResult; + }, + ); + } + + // Resources pagination + if (capabilities.resources && maxPageSize.resources !== undefined) { + mcpServer.server.setRequestHandler( + ListResourcesRequestSchema, + async (request, extra) => { + const cursor = request.params?.cursor; + const pageSize = maxPageSize.resources!; + + // Collect all resources (static + from templates) + const allResources: Resource[] = []; + + // Add static resources from registered resources + for (const [uri, registered] of state.registeredResources.entries()) { + if (registered.enabled) { + allResources.push({ + uri, + name: registered.name, + title: registered.title, + description: registered.metadata?.description, + mimeType: registered.metadata?.mimeType, + icons: registered.metadata?.icons, + } as Resource); + } + } + + // Add resources from templates (if list callback exists) + for (const template of state.registeredResourceTemplates.values()) { + if (template.enabled && template.resourceTemplate.listCallback) { + try { + const result = + await template.resourceTemplate.listCallback(extra); + for (const resource of result.resources) { + allResources.push({ + ...resource, + // Merge template metadata if resource doesn't have it + name: resource.name, + description: + resource.description || template.metadata?.description, + mimeType: resource.mimeType || template.metadata?.mimeType, + icons: resource.icons || template.metadata?.icons, + } as Resource); + } + } catch (error) { + // Ignore errors from list callbacks + } + } + } + + const startIndex = cursor ? parseInt(cursor, 10) : 0; + const endIndex = startIndex + pageSize; + const page = allResources.slice(startIndex, endIndex); + const nextCursor = + endIndex < allResources.length ? endIndex.toString() : undefined; + + return { + resources: page, + nextCursor, + } as ListResourcesResult; + }, + ); + } + + // Resource templates pagination + if (capabilities.resources && maxPageSize.resourceTemplates !== undefined) { + mcpServer.server.setRequestHandler( + ListResourceTemplatesRequestSchema, + async (request) => { + const cursor = request.params?.cursor; + const pageSize = maxPageSize.resourceTemplates!; + + // Convert registered resource templates to ResourceTemplate format + const allTemplates: Array<{ + uriTemplate: string; + name: string; + description?: string; + mimeType?: string; + icons?: Array<{ + src: string; + mimeType?: string; + sizes?: string[]; + theme?: "light" | "dark"; + }>; + title?: string; + }> = []; + for (const [ + uriTemplate, + registered, + ] of state.registeredResourceTemplates.entries()) { + if (registered.enabled) { + // Find the name from config by matching uriTemplate + const templateDef = config.resourceTemplates?.find( + (t) => t.uriTemplate === uriTemplate, + ); + allTemplates.push({ + uriTemplate: registered.resourceTemplate.uriTemplate.toString(), + name: templateDef?.name || uriTemplate, // Fallback to uriTemplate if name not found + title: registered.title, + description: + registered.metadata?.description || templateDef?.description, + mimeType: registered.metadata?.mimeType, + icons: registered.metadata?.icons, + }); + } + } + + const startIndex = cursor ? parseInt(cursor, 10) : 0; + const endIndex = startIndex + pageSize; + const page = allTemplates.slice(startIndex, endIndex); + const nextCursor = + endIndex < allTemplates.length ? endIndex.toString() : undefined; + + return { + resourceTemplates: page as ResourceTemplate[], + nextCursor, + } as ListResourceTemplatesResult; + }, + ); + } + + // Prompts pagination + if (capabilities.prompts && maxPageSize.prompts !== undefined) { + mcpServer.server.setRequestHandler( + ListPromptsRequestSchema, + async (request) => { + const cursor = request.params?.cursor; + const pageSize = maxPageSize.prompts!; + + // Convert registered prompts to Prompt format using the same logic as the SDK + const allPrompts: Prompt[] = []; + for (const [name, prompt] of state.registeredPrompts.entries()) { + if (prompt.enabled) { + // Use the same conversion logic the SDK uses (from mcp.js line 408-419) + const shape = prompt.argsSchema + ? getObjectShape(prompt.argsSchema) + : undefined; + const arguments_ = shape + ? Object.entries(shape).map(([argName, field]) => { + const description = getSchemaDescription(field); + const isOptional = isSchemaOptional(field); + return { + name: argName, + description, + required: !isOptional, + } as PromptArgument; + }) + : undefined; + + allPrompts.push({ + name, + title: prompt.title, + description: prompt.description, + arguments: arguments_, + } as Prompt); + } + } + + const startIndex = cursor ? parseInt(cursor, 10) : 0; + const endIndex = startIndex + pageSize; + const page = allPrompts.slice(startIndex, endIndex); + const nextCursor = + endIndex < allPrompts.length ? endIndex.toString() : undefined; + + return { + prompts: page, + nextCursor, + } as ListPromptsResult; + }, + ); + } + return mcpServer; } diff --git a/shared/test/test-server-fixtures.ts b/shared/test/test-server-fixtures.ts index 80b59f442..418b7cddf 100644 --- a/shared/test/test-server-fixtures.ts +++ b/shared/test/test-server-fixtures.ts @@ -32,6 +32,94 @@ export type { } from "./composable-test-server.js"; export { createMcpServer } from "./composable-test-server.js"; +/** + * Create multiple numbered tools for pagination testing + * @param count Number of tools to create + * @returns Array of tool definitions + */ +export function createNumberedTools(count: number): ToolDefinition[] { + const tools: ToolDefinition[] = []; + for (let i = 1; i <= count; i++) { + tools.push({ + name: `tool-${i}`, + description: `Test tool number ${i}`, + inputSchema: { + message: z.string().describe(`Message for tool ${i}`), + }, + handler: async (params: Record) => { + return { message: `Tool ${i}: ${params.message as string}` }; + }, + }); + } + return tools; +} + +/** + * Create multiple numbered resources for pagination testing + * @param count Number of resources to create + * @returns Array of resource definitions + */ +export function createNumberedResources(count: number): ResourceDefinition[] { + const resources: ResourceDefinition[] = []; + for (let i = 1; i <= count; i++) { + resources.push({ + name: `resource-${i}`, + uri: `test://resource-${i}`, + description: `Test resource number ${i}`, + mimeType: "text/plain", + text: `Content for resource ${i}`, + }); + } + return resources; +} + +/** + * Create multiple numbered resource templates for pagination testing + * @param count Number of resource templates to create + * @returns Array of resource template definitions + */ +export function createNumberedResourceTemplates( + count: number, +): ResourceTemplateDefinition[] { + const templates: ResourceTemplateDefinition[] = []; + for (let i = 1; i <= count; i++) { + templates.push({ + name: `template-${i}`, + uriTemplate: `test://template-${i}/{param}`, + description: `Test resource template number ${i}`, + handler: async (uri: URL, variables: Record) => { + return { + contents: [ + { + uri: uri.toString(), + mimeType: "text/plain", + text: `Content for template ${i} with param ${variables.param}`, + }, + ], + }; + }, + }); + } + return templates; +} + +/** + * Create multiple numbered prompts for pagination testing + * @param count Number of prompts to create + * @returns Array of prompt definitions + */ +export function createNumberedPrompts(count: number): PromptDefinition[] { + const prompts: PromptDefinition[] = []; + for (let i = 1; i <= count; i++) { + prompts.push({ + name: `prompt-${i}`, + description: `Test prompt number ${i}`, + promptString: `This is prompt ${i}`, + }); + } + return prompts; +} + /** * Create an "echo" tool that echoes back the input message */ From f1e9c1453fa94ed0a77fe39f575c57f9fccee74a Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Sat, 24 Jan 2026 11:22:02 -0800 Subject: [PATCH 38/44] Added progress tracking support to InspectorClient, added test fixture support and tests. --- docs/tui-web-client-feature-gaps.md | 172 +++++++++--------- shared/__tests__/inspectorClient.test.ts | 216 +++++++++++++++++++++++ shared/mcp/inspectorClient.ts | 24 +++ shared/test/composable-test-server.ts | 17 +- shared/test/test-server-fixtures.ts | 100 ++++++++++- 5 files changed, 437 insertions(+), 92 deletions(-) diff --git a/docs/tui-web-client-feature-gaps.md b/docs/tui-web-client-feature-gaps.md index f05bcf300..45d8aa72a 100644 --- a/docs/tui-web-client-feature-gaps.md +++ b/docs/tui-web-client-feature-gaps.md @@ -29,7 +29,6 @@ This document details the feature gaps between the TUI (Terminal User Interface) | List tools | ✅ | ✅ | ✅ | - | | Call tool | ✅ | ✅ | ✅ | - | | Tools listChanged notifications | ✅ | ✅ | ❌ | Medium | -| Tool call progress tracking | ❌ | ✅ | ❌ | Medium | | Pagination (tools) | ✅ | ✅ | ✅ | - | | **Roots** | | List roots | ✅ | ✅ | ❌ | Medium | @@ -43,6 +42,7 @@ This document details the feature gaps between the TUI (Terminal User Interface) | Elicitation requests | ✅ | ✅ | ❌ | High | | Completions (resource templates) | ✅ | ✅ | ❌ | Medium | | Completions (prompts with params) | ✅ | ✅ | ❌ | Medium | +| Progress tracking | ✅ | ✅ | ❌ | Medium | | **Other** | | HTTP request tracking | ✅ | ❌ | ✅ | - (TUI advantage) | @@ -254,7 +254,80 @@ This document details the feature gaps between the TUI (Terminal User Interface) - TUI: `tui/src/components/PromptTestModal.tsx` - Prompt form (needs completion integration) - TUI: `tui/src/components/ResourceTestModal.tsx` - Resource template form (needs completion integration) -### 6. ListChanged Notifications +### 6. Progress Tracking + +**Use Case:** + +Long-running operations (tool calls, resource reads, prompt invocations, etc.) can send progress notifications (`notifications/progress`) to keep clients informed of execution status. This is useful for: + +- Showing progress bars or status updates +- Resetting request timeouts on progress notifications +- Providing user feedback during long operations + +**Web Client Support:** + +- **Progress Token**: Generates and includes `progressToken` in request metadata: + ```typescript + const mergedMetadata = { + ...metadata, + progressToken: progressTokenRef.current++, + ...toolMetadata, + }; + ``` +- **Progress Callback**: Sets up `onprogress` callback in `useConnection`: + ```typescript + if (mcpRequestOptions.resetTimeoutOnProgress) { + mcpRequestOptions.onprogress = (params: Progress) => { + if (onNotification) { + onNotification({ + method: "notifications/progress", + params, + }); + } + }; + } + ``` +- **Progress Display**: Progress notifications are displayed in the "Server Notifications" window +- **Timeout Reset**: `resetTimeoutOnProgress` option resets request timeout when progress notifications are received + +**InspectorClient Status:** + +- ✅ Progress notification handling - Registers handler for `notifications/progress` and dispatches `progressNotification` events +- ✅ Progress token support - Accepts `progressToken` in metadata via `callTool` (and other methods) +- ✅ Event-based approach - Uses `progressNotification` events instead of `onprogress` callbacks (clients can listen for events) +- ✅ Token management - Clients can generate and manage their own `progressToken` values as needed +- ❌ No timeout reset on progress - `resetTimeoutOnProgress` option not yet implemented + +**TUI Status:** + +- ❌ No progress tracking support +- ❌ No progress notification display +- ❌ No progress token management + +**Implementation Requirements:** + +- ✅ **Completed in InspectorClient:** + - Progress notification handler registration (when `progress: true` option is set) + - `progressNotification` event dispatching with full progress params (includes `progressToken`, `progress`, `total`, `message`) + - Support for `progressToken` in request metadata (via `callTool`, `getPrompt`, etc.) + - Event-based API - Clients listen for `progressNotification` events instead of using callbacks +- ❌ **Still Needed:** + - Timeout reset on progress - `resetTimeoutOnProgress` option not yet implemented +- ❌ **TUI UI Support Needed:** + - Show progress notifications during long-running operations + - Display progress status in results view + - Optional: Progress bars or percentage indicators + +**Code References:** + +- InspectorClient: `shared/mcp/inspectorClient.ts` (lines 598-606) - Progress notification handler registration and event dispatching +- InspectorClient: `shared/mcp/inspectorClient.ts` (lines 1018-1021) - Progress token support via metadata in `callTool` +- Web client: `client/src/App.tsx` (lines 840-892) - Progress token generation and tool call +- Web client: `client/src/lib/hooks/useConnection.ts` (lines 214-226) - Progress callback setup +- SDK types: `RequestOptions` includes `onprogress?: (params: Progress) => void` and `resetTimeoutOnProgress?: boolean` +- SDK types: `Progress` notification type for progress updates + +### 7. ListChanged Notifications **Use Case:** @@ -321,7 +394,7 @@ The TUI automatically supports `listChanged` notifications through `InspectorCli - Web client: `client/src/lib/hooks/useConnection.ts` (lines 422-424, 699-704) - Capability declaration and notification handlers - `InspectorClient`: `shared/mcp/inspectorClient.ts` (line 1004) - TODO comment about listChanged support -### 7. Roots Support +### 8. Roots Support **Use Case:** @@ -375,7 +448,7 @@ Roots are file system paths (as `file://` URIs) that define which directories an - Web client: `client/src/lib/hooks/useConnection.ts` (lines 422-424, 357) - Capability declaration and `getRoots` callback - Web client: `client/src/App.tsx` (lines 1225-1229) - RootsTab usage -### 8. Custom Headers +### 9. Custom Headers **Use Case:** @@ -436,81 +509,6 @@ Custom headers are used to send additional HTTP headers when connecting to MCP s - `InspectorClient`: `shared/mcp/config.ts` (lines 118-129) - Headers in `MCPServerConfig` - `InspectorClient`: `shared/mcp/transport.ts` (lines 100-134) - Headers passed to SDK transports -### 9. Tool Call Progress Tracking - -**Use Case:** - -Long-running tool calls can send progress notifications (`notifications/progress`) to keep clients informed of execution status. This is useful for: - -- Showing progress bars or status updates -- Resetting request timeouts on progress notifications -- Providing user feedback during long operations - -**Web Client Support:** - -- **Progress Token**: Generates and includes `progressToken` in tool call metadata: - ```typescript - const mergedMetadata = { - ...metadata, - progressToken: progressTokenRef.current++, - ...toolMetadata, - }; - ``` -- **Progress Callback**: Sets up `onprogress` callback in `useConnection`: - ```typescript - if (mcpRequestOptions.resetTimeoutOnProgress) { - mcpRequestOptions.onprogress = (params: Progress) => { - if (onNotification) { - onNotification({ - method: "notifications/progress", - params, - }); - } - }; - } - ``` -- **Progress Display**: Progress notifications are displayed in the "Server Notifications" window -- **Timeout Reset**: `resetTimeoutOnProgress` option resets request timeout when progress notifications are received - -**InspectorClient Status:** - -- ❌ No `progressToken` generation or management -- ❌ No `onprogress` callback support in `callTool()` -- ❌ No progress notification handling -- ❌ No timeout reset on progress - -**TUI Status:** - -- ❌ No progress tracking support -- ❌ No progress notification display -- ❌ No progress token management - -**Implementation Requirements:** - -- Add progress token generation to `InspectorClient`: - - Private counter for generating unique progress tokens - - Option to include `progressToken` in tool call metadata -- Add `onprogress` callback support to `callTool()`: - - Accept optional `onprogress` callback parameter - - Pass callback to SDK's `callTool()` via `RequestOptions` -- Add progress notification handling: - - Set up notification handler for `notifications/progress` - - Dispatch progress events for UI consumption -- Add timeout reset support: - - Option to reset timeout on progress notifications - - Pass `resetTimeoutOnProgress` to SDK request options -- Add UI in TUI for progress display: - - Show progress notifications during tool execution - - Display progress status in tool results view - - Optional: Progress bars or percentage indicators - -**Code References:** - -- Web client: `client/src/App.tsx` (lines 840-892) - Progress token generation and tool call -- Web client: `client/src/lib/hooks/useConnection.ts` (lines 214-226) - Progress callback setup -- SDK types: `RequestOptions` includes `onprogress?: (params: Progress) => void` and `resetTimeoutOnProgress?: boolean` -- SDK types: `Progress` notification type for progress updates - ## Implementation Priority ### High Priority (Core MCP Features) @@ -526,8 +524,8 @@ Long-running tool calls can send progress notifications (`notifications/progress 6. **Custom Headers** - Useful for custom authentication schemes 7. **ListChanged Notifications** - Auto-refresh lists when server data changes 8. **Roots Support** - Manage file system access for servers -9. **Tool Call Progress Tracking** - User feedback during long-running operations -10. **Pagination Support** - Handle large lists efficiently +9. **Progress Tracking** - User feedback during long-running operations +10. **Pagination Support** - Handle large lists efficiently (COMPLETED) ## InspectorClient Extensions Needed @@ -598,11 +596,11 @@ Based on this analysis, `InspectorClient` needs the following additions: - ✅ Return `nextCursor` from list methods - **COMPLETED** - ✅ Pagination helper methods (`listAll*()`) - **COMPLETED** -9. **Tool Call Progress Tracking**: - - ❌ Progress token generation - Needs to be added - - ❌ `onprogress` callback support in `callTool()` - Needs to be added - - ❌ Progress notification handling - Needs to be added - - ❌ Timeout reset on progress - Needs to be added +9. **Progress Tracking**: + - ✅ Progress notification handling - Implemented (dispatches `progressNotification` events) + - ✅ Progress token support - Implemented (accepts `progressToken` in metadata) + - ✅ Event-based API - Clients listen for `progressNotification` events (no callbacks needed) + - ❌ Timeout reset on progress - Not yet implemented (`resetTimeoutOnProgress` option) ## Notes @@ -615,7 +613,7 @@ Based on this analysis, `InspectorClient` needs the following additions: - **ListChanged Notifications**: Web client handles `listChanged` notifications for tools, resources, and prompts, automatically refreshing lists when notifications are received. `InspectorClient` now fully supports these notifications with automatic list refresh, cache preservation/cleanup, and configurable handlers. TUI automatically benefits from this functionality but doesn't have UI to display notification events. - **Roots**: `InspectorClient` has full roots support with `getRoots()` and `setRoots()` methods, handler for `roots/list` requests, and notification support. Web client has a `RootsTab` UI for managing roots. TUI does not yet have UI for managing roots. - **Pagination**: Web client supports cursor-based pagination for all list methods (tools, resources, resource templates, prompts), tracking `nextCursor` state and making multiple requests to fetch all items. `InspectorClient` now fully supports pagination with cursor parameters in all list methods and `listAll*()` helper methods that automatically fetch all pages. TUI inherits this pagination support from `InspectorClient`. -- **Progress Tracking**: Web client supports progress tracking for tool calls by generating `progressToken` values, setting up `onprogress` callbacks, and displaying progress notifications. `InspectorClient` does not yet support progress tracking. TUI does not support progress tracking. +- **Progress Tracking**: Web client supports progress tracking for long-running operations by generating `progressToken` values, setting up `onprogress` callbacks, and displaying progress notifications. `InspectorClient` now supports progress notification handling (dispatches `progressNotification` events) and accepts `progressToken` in metadata. Clients can generate their own tokens and listen for events. The only missing feature is timeout reset on progress (`resetTimeoutOnProgress` option). TUI does not yet have UI support for displaying progress notifications. ## Related Documentation diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index 73ac93d80..224bac871 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -1045,6 +1045,222 @@ describe("InspectorClient", () => { }); }); + describe("Progress Tracking", () => { + it("should dispatch progressNotification events when progress notifications are received", async () => { + const { createSendProgressTool } = + await import("../test/test-server-fixtures.js"); + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createSendProgressTool()], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + clientIdentity: { name: "test", version: "1.0.0" }, + autoFetchServerContents: false, + progress: true, + }, + ); + + await client.connect(); + + const progressEvents: any[] = []; + const progressListener = (event: Event) => { + const customEvent = event as CustomEvent; + progressEvents.push(customEvent.detail); + }; + client.addEventListener("progressNotification", progressListener); + + // Generate a progress token + const progressToken = 12345; + + // Call the tool with progressToken in metadata + await client.callTool( + "sendProgress", + { + units: 3, + delayMs: 50, + total: 3, + message: "Test progress", + }, + undefined, // generalMetadata + { progressToken: progressToken.toString() }, // toolSpecificMetadata + ); + + // Wait a bit for all progress notifications to be received + await new Promise((resolve) => setTimeout(resolve, 200)); + + // Remove listener + client.removeEventListener("progressNotification", progressListener); + + // Verify we received progress events + expect(progressEvents.length).toBe(3); + + // Verify first progress event + expect(progressEvents[0]).toMatchObject({ + progress: 1, + total: 3, + message: "Test progress (1/3)", + progressToken: progressToken.toString(), + }); + + // Verify second progress event + expect(progressEvents[1]).toMatchObject({ + progress: 2, + total: 3, + message: "Test progress (2/3)", + progressToken: progressToken.toString(), + }); + + // Verify third progress event + expect(progressEvents[2]).toMatchObject({ + progress: 3, + total: 3, + message: "Test progress (3/3)", + progressToken: progressToken.toString(), + }); + + await client.disconnect(); + await server.stop(); + }); + + it("should not dispatch progressNotification events when progress is disabled", async () => { + const { createSendProgressTool } = + await import("../test/test-server-fixtures.js"); + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createSendProgressTool()], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + clientIdentity: { name: "test", version: "1.0.0" }, + autoFetchServerContents: false, + progress: false, // Disable progress + }, + ); + + await client.connect(); + + const progressEvents: any[] = []; + const progressListener = (event: Event) => { + const customEvent = event as CustomEvent; + progressEvents.push(customEvent.detail); + }; + client.addEventListener("progressNotification", progressListener); + + const progressToken = 12345; + + // Call the tool with progressToken in metadata + await client.callTool( + "sendProgress", + { + units: 2, + delayMs: 50, + }, + undefined, // generalMetadata + { progressToken: progressToken.toString() }, // toolSpecificMetadata + ); + + // Wait a bit for notifications + await new Promise((resolve) => setTimeout(resolve, 200)); + + // Remove listener + client.removeEventListener("progressNotification", progressListener); + + // Verify no progress events were received + expect(progressEvents.length).toBe(0); + + await client.disconnect(); + await server.stop(); + }); + + it("should handle progress notifications without total", async () => { + const { createSendProgressTool } = + await import("../test/test-server-fixtures.js"); + + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createSendProgressTool()], + }); + await server.start(); + + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + clientIdentity: { name: "test", version: "1.0.0" }, + autoFetchServerContents: false, + progress: true, + }, + ); + + await client.connect(); + + const progressEvents: any[] = []; + const progressListener = (event: Event) => { + const customEvent = event as CustomEvent; + progressEvents.push(customEvent.detail); + }; + client.addEventListener("progressNotification", progressListener); + + const progressToken = 67890; + + // Call the tool without total, with progressToken in metadata + await client.callTool( + "sendProgress", + { + units: 2, + delayMs: 50, + message: "Indeterminate progress", + }, + undefined, // generalMetadata + { progressToken: progressToken.toString() }, // toolSpecificMetadata + ); + + // Wait a bit for notifications + await new Promise((resolve) => setTimeout(resolve, 200)); + + // Remove listener + client.removeEventListener("progressNotification", progressListener); + + // Verify we received progress events + expect(progressEvents.length).toBe(2); + + // Verify events don't have total + expect(progressEvents[0]).toMatchObject({ + progress: 1, + message: "Indeterminate progress (1/2)", + progressToken: progressToken.toString(), + }); + expect(progressEvents[0].total).toBeUndefined(); + + expect(progressEvents[1]).toMatchObject({ + progress: 2, + message: "Indeterminate progress (2/2)", + progressToken: progressToken.toString(), + }); + expect(progressEvents[1].total).toBeUndefined(); + + await client.disconnect(); + await server.stop(); + }); + }); + describe("Logging", () => { it("should set logging level when server supports it", async () => { client = new InspectorClient( diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index e9e99590b..3fcf2cf19 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -48,6 +48,7 @@ import { ResourceListChangedNotificationSchema, PromptListChangedNotificationSchema, ResourceUpdatedNotificationSchema, + ProgressNotificationSchema, type Root, } from "@modelcontextprotocol/sdk/types.js"; import { @@ -123,6 +124,12 @@ export interface InspectorClientOptions { resources?: boolean; // default: true prompts?: boolean; // default: true }; + + /** + * Whether to enable progress notification handling (default: true) + * If enabled, InspectorClient will register a handler for progress notifications and dispatch progressNotification events + */ + progress?: boolean; // default: true } /** @@ -249,6 +256,7 @@ export class InspectorClient extends EventTarget { private initialLoggingLevel?: LoggingLevel; private sample: boolean; private elicit: boolean; + private progress: boolean; private status: ConnectionStatus = "disconnected"; // Server data private tools: Tool[] = []; @@ -291,6 +299,7 @@ export class InspectorClient extends EventTarget { this.initialLoggingLevel = options.initialLoggingLevel; this.sample = options.sample ?? true; this.elicit = options.elicit ?? true; + this.progress = options.progress ?? true; // Only set roots if explicitly provided (even if empty array) - this enables roots capability this.roots = options.roots; // Initialize listChangedNotifications config (default: all enabled) @@ -581,6 +590,21 @@ export class InspectorClient extends EventTarget { }, ); } + + // Progress notification handler + if (this.progress) { + this.client.setNotificationHandler( + ProgressNotificationSchema, + async (notification) => { + // Dispatch event with full progress notification params + this.dispatchEvent( + new CustomEvent("progressNotification", { + detail: notification.params, + }), + ); + }, + ); + } } } catch (error) { this.status = "error"; diff --git a/shared/test/composable-test-server.ts b/shared/test/composable-test-server.ts index 960cd79e2..6a8e4b270 100644 --- a/shared/test/composable-test-server.ts +++ b/shared/test/composable-test-server.ts @@ -22,6 +22,11 @@ import type { RegisteredPrompt, RegisteredResourceTemplate, } from "@modelcontextprotocol/sdk/server/mcp.js"; +import type { RequestHandlerExtra } from "@modelcontextprotocol/sdk/shared/protocol.js"; +import type { + ServerRequest, + ServerNotification, +} from "@modelcontextprotocol/sdk/types.js"; import { SetLevelRequestSchema, SubscribeRequestSchema, @@ -83,6 +88,7 @@ export interface ToolDefinition { handler: ( params: Record, context?: TestServerContext, + extra?: RequestHandlerExtra, ) => Promise; } @@ -118,6 +124,8 @@ export interface ResourceTemplateDefinition { handler: ( uri: URL, params: Record, + context?: TestServerContext, + extra?: RequestHandlerExtra, ) => Promise<{ contents: Array<{ uri: string; mimeType?: string; text: string }>; }>; @@ -290,10 +298,11 @@ export function createMcpServer(config: ServerConfig): McpServer { description: tool.description, inputSchema: tool.inputSchema, }, - async (args) => { + async (args, extra) => { const result = await tool.handler( args as Record, - context, // Pass context instead of mcpServer + context, + extra, ); // Handle different return types from tool handlers // If handler returns content array directly (like get-annotated-message), use it @@ -449,8 +458,8 @@ export function createMcpServer(config: ServerConfig): McpServer { { description: template.description, }, - async (uri: URL, variables: Record, extra?: any) => { - const result = await template.handler(uri, variables); + async (uri: URL, variables: Record, extra) => { + const result = await template.handler(uri, variables, context, extra); return result; }, ); diff --git a/shared/test/test-server-fixtures.ts b/shared/test/test-server-fixtures.ts index 418b7cddf..1276c9251 100644 --- a/shared/test/test-server-fixtures.ts +++ b/shared/test/test-server-fixtures.ts @@ -978,8 +978,106 @@ export function createUpdateResourceTool(): ToolDefinition { } /** - * Create a tool that removes a prompt from the server by name and sends list_changed notification + * Create a tool that sends progress notifications during execution + * @param name Tool name (default: "sendProgress") + * @returns Tool definition */ +export function createSendProgressTool( + name: string = "sendProgress", +): ToolDefinition { + return { + name, + description: + "Send progress notifications during tool execution, then return a result", + inputSchema: { + units: z + .number() + .int() + .positive() + .describe("Number of progress units to send"), + delayMs: z + .number() + .int() + .nonnegative() + .default(100) + .describe("Delay in milliseconds between progress notifications"), + total: z + .number() + .int() + .positive() + .optional() + .describe("Total number of units (for percentage calculation)"), + message: z + .string() + .optional() + .describe("Progress message to include in notifications"), + }, + handler: async ( + params: Record, + context?: TestServerContext, + extra?: any, + ): Promise => { + if (!context) { + throw new Error("Server context not available"); + } + const server = context.server; + + const units = params.units as number; + const delayMs = (params.delayMs as number) || 100; + const total = params.total as number | undefined; + const message = (params.message as string) || "Processing..."; + + // Extract progressToken from metadata + const progressToken = extra?._meta?.progressToken; + + // Send progress notifications + for (let i = 1; i <= units; i++) { + // Wait before sending notification (except for the first one) + if (i > 1 && delayMs > 0) { + await new Promise((resolve) => setTimeout(resolve, delayMs)); + } + + if (progressToken !== undefined) { + const progressParams: { + progress: number; + total?: number; + message?: string; + progressToken: string | number; + } = { + progress: i, + message: `${message} (${i}/${units})`, + progressToken, + }; + if (total !== undefined) { + progressParams.total = total; + } + + try { + await server.server.notification( + { + method: "notifications/progress", + params: progressParams, + }, + { relatedRequestId: extra?.requestId }, + ); + } catch (error) { + console.error( + "[sendProgress] Error sending progress notification:", + error, + ); + } + } + } + + return { + message: `Completed ${units} progress notifications`, + units, + total: total || units, + }; + }, + }; +} + export function createRemovePromptTool(): ToolDefinition { return { name: "removePrompt", From 8e6d2625bc7eab1c4687360abb758961716c0a46 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Sat, 24 Jan 2026 13:07:11 -0800 Subject: [PATCH 39/44] Implemented typesafe events across InspectorClient and all consumers. --- shared/__tests__/inspectorClient.test.ts | 146 ++++----- shared/mcp/elicitationCreateMessage.ts | 45 +++ shared/mcp/index.ts | 5 +- shared/mcp/inspectorClient.ts | 386 +++++++---------------- shared/mcp/inspectorClientEventTarget.ts | 183 +++++++++++ shared/mcp/samplingCreateMessage.ts | 63 ++++ shared/react/useInspectorClient.ts | 53 ++-- 7 files changed, 493 insertions(+), 388 deletions(-) create mode 100644 shared/mcp/elicitationCreateMessage.ts create mode 100644 shared/mcp/inspectorClientEventTarget.ts create mode 100644 shared/mcp/samplingCreateMessage.ts diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index 224bac871..1ca36987c 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -1,9 +1,7 @@ import { describe, it, expect, beforeEach, afterEach } from "vitest"; -import { - InspectorClient, - SamplingCreateMessage, - ElicitationCreateMessage, -} from "../mcp/inspectorClient.js"; +import { InspectorClient } from "../mcp/inspectorClient.js"; +import { SamplingCreateMessage } from "../mcp/samplingCreateMessage.js"; +import { ElicitationCreateMessage } from "../mcp/elicitationCreateMessage.js"; import { getTestMcpServerCommand } from "../test/test-server-stdio.js"; import { createTestServerHttp, @@ -27,7 +25,8 @@ import { createNumberedResourceTemplates, createNumberedPrompts, } from "../test/test-server-fixtures.js"; -import type { MessageEntry } from "../mcp/types.js"; +import type { MessageEntry, ConnectionStatus } from "../mcp/types.js"; +import type { TypedEvent } from "../mcp/inspectorClientEventTarget.js"; import type { CreateMessageResult, ElicitResult, @@ -257,8 +256,7 @@ describe("InspectorClient", () => { const messageEvents: MessageEntry[] = []; client.addEventListener("message", (event) => { - const customEvent = event as CustomEvent; - messageEvents.push(customEvent.detail); + messageEvents.push(event.detail); }); await client.connect(); @@ -433,8 +431,7 @@ describe("InspectorClient", () => { const fetchRequestEvents: any[] = []; client.addEventListener("fetchRequest", (event) => { - const customEvent = event as CustomEvent; - fetchRequestEvents.push(customEvent.detail); + fetchRequestEvents.push(event.detail); }); await client.connect(); @@ -523,8 +520,7 @@ describe("InspectorClient", () => { const toolsEvents: any[][] = []; client.addEventListener("toolsChange", (event) => { - const customEvent = event as CustomEvent; - toolsEvents.push(customEvent.detail); + toolsEvents.push(event.detail); }); await client.connect(); @@ -1071,9 +1067,8 @@ describe("InspectorClient", () => { await client.connect(); const progressEvents: any[] = []; - const progressListener = (event: Event) => { - const customEvent = event as CustomEvent; - progressEvents.push(customEvent.detail); + const progressListener = (event: TypedEvent<"progressNotification">) => { + progressEvents.push(event.detail); }; client.addEventListener("progressNotification", progressListener); @@ -1155,9 +1150,8 @@ describe("InspectorClient", () => { await client.connect(); const progressEvents: any[] = []; - const progressListener = (event: Event) => { - const customEvent = event as CustomEvent; - progressEvents.push(customEvent.detail); + const progressListener = (event: TypedEvent<"progressNotification">) => { + progressEvents.push(event.detail); }; client.addEventListener("progressNotification", progressListener); @@ -1212,9 +1206,8 @@ describe("InspectorClient", () => { await client.connect(); const progressEvents: any[] = []; - const progressListener = (event: Event) => { - const customEvent = event as CustomEvent; - progressEvents.push(customEvent.detail); + const progressListener = (event: TypedEvent<"progressNotification">) => { + progressEvents.push(event.detail); }; client.addEventListener("progressNotification", progressListener); @@ -1319,10 +1312,9 @@ describe("InspectorClient", () => { }, ); - const statuses: string[] = []; + const statuses: ConnectionStatus[] = []; client.addEventListener("statusChange", (event) => { - const customEvent = event as CustomEvent; - statuses.push(customEvent.detail); + statuses.push(event.detail); }); await client.connect(); @@ -1407,9 +1399,9 @@ describe("InspectorClient", () => { (resolve) => { client.addEventListener( "newPendingSample", - ((event: CustomEvent) => { - resolve(event.detail as SamplingCreateMessage); - }) as EventListener, + (event) => { + resolve(event.detail); + }, { once: true }, ); }, @@ -1498,12 +1490,12 @@ describe("InspectorClient", () => { // Set up Promise to wait for notification const notificationPromise = new Promise((resolve) => { - client.addEventListener("message", ((event: CustomEvent) => { - const entry = event.detail as MessageEntry; + client.addEventListener("message", (event) => { + const entry = event.detail; if (entry.direction === "notification") { resolve(entry); } - }) as EventListener); + }); }); // Call the sendNotification tool @@ -1555,12 +1547,12 @@ describe("InspectorClient", () => { // Set up Promise to wait for notification const notificationPromise = new Promise((resolve) => { - client.addEventListener("message", ((event: CustomEvent) => { - const entry = event.detail as MessageEntry; + client.addEventListener("message", (event) => { + const entry = event.detail; if (entry.direction === "notification") { resolve(entry); } - }) as EventListener); + }); }); // Call the sendNotification tool @@ -1612,12 +1604,12 @@ describe("InspectorClient", () => { // Set up Promise to wait for notification const notificationPromise = new Promise((resolve) => { - client.addEventListener("message", ((event: CustomEvent) => { - const entry = event.detail as MessageEntry; + client.addEventListener("message", (event) => { + const entry = event.detail; if (entry.direction === "notification") { resolve(entry); } - }) as EventListener); + }); }); // Call the sendNotification tool @@ -1676,9 +1668,9 @@ describe("InspectorClient", () => { (resolve) => { client.addEventListener( "newPendingElicitation", - ((event: CustomEvent) => { - resolve(event.detail as ElicitationCreateMessage); - }) as EventListener, + (event) => { + resolve(event.detail); + }, { once: true }, ); }, @@ -1871,9 +1863,9 @@ describe("InspectorClient", () => { const rootsChangePromise = new Promise((resolve) => { client.addEventListener( "rootsChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }); @@ -2258,10 +2250,10 @@ describe("InspectorClient", () => { client.addEventListener( "resourceContentChange", - ((event: CustomEvent) => { + (event) => { eventReceived = true; eventDetail = event.detail; - }) as EventListener, + }, { once: true }, ); @@ -2305,10 +2297,10 @@ describe("InspectorClient", () => { client.addEventListener( "resourceTemplateContentChange", - ((event: CustomEvent) => { + (event) => { eventReceived = true; eventDetail = event.detail; - }) as EventListener, + }, { once: true }, ); @@ -2355,10 +2347,10 @@ describe("InspectorClient", () => { client.addEventListener( "promptContentChange", - ((event: CustomEvent) => { + (event) => { eventReceived = true; eventDetail = event.detail; - }) as EventListener, + }, { once: true }, ); @@ -2401,10 +2393,10 @@ describe("InspectorClient", () => { client.addEventListener( "toolCallResultChange", - ((event: CustomEvent) => { + (event) => { eventReceived = true; eventDetail = event.detail; - }) as EventListener, + }, { once: true }, ); @@ -2444,10 +2436,10 @@ describe("InspectorClient", () => { client.addEventListener( "toolCallResultChange", - ((event: CustomEvent) => { + (event) => { eventReceived = true; eventDetail = event.detail; - }) as EventListener, + }, { once: true }, ); @@ -2734,9 +2726,9 @@ describe("InspectorClient", () => { const toolsChangePromise = new Promise((resolve) => { client.addEventListener( "toolsChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }); @@ -2783,9 +2775,9 @@ describe("InspectorClient", () => { const resourcesChangePromise = new Promise((resolve) => { client.addEventListener( "resourcesChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }); @@ -2903,9 +2895,9 @@ describe("InspectorClient", () => { (resolve) => { client.addEventListener( "resourceTemplatesChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }, @@ -2955,9 +2947,9 @@ describe("InspectorClient", () => { const promptsChangePromise = new Promise((resolve) => { client.addEventListener( "promptsChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }); @@ -3005,9 +2997,9 @@ describe("InspectorClient", () => { const toolsChangePromise = new Promise((resolve) => { client.addEventListener( "toolsChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }); @@ -3067,9 +3059,9 @@ describe("InspectorClient", () => { const resourcesChangePromise = new Promise((resolve) => { client.addEventListener( "resourcesChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }); @@ -3078,9 +3070,9 @@ describe("InspectorClient", () => { (resolve) => { client.addEventListener( "resourceTemplatesChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }, @@ -3138,9 +3130,9 @@ describe("InspectorClient", () => { const promptsChangePromise = new Promise((resolve) => { client.addEventListener( "promptsChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }); @@ -3302,9 +3294,9 @@ describe("InspectorClient", () => { const toolsChangePromise = new Promise((resolve) => { client.addEventListener( "toolsChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }); @@ -3358,9 +3350,9 @@ describe("InspectorClient", () => { const resourcesChangePromise = new Promise((resolve) => { client.addEventListener( "resourcesChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }); @@ -3414,9 +3406,9 @@ describe("InspectorClient", () => { const promptsChangePromise = new Promise((resolve) => { client.addEventListener( "promptsChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }); @@ -3645,9 +3637,9 @@ describe("InspectorClient", () => { const eventPromise = new Promise((resolve) => { client.addEventListener( "resourceSubscriptionsChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }); @@ -3695,9 +3687,9 @@ describe("InspectorClient", () => { const eventPromise = new Promise((resolve) => { client.addEventListener( "resourceSubscriptionsChange", - ((event: CustomEvent) => { + (event) => { resolve(event); - }) as EventListener, + }, { once: true }, ); }); diff --git a/shared/mcp/elicitationCreateMessage.ts b/shared/mcp/elicitationCreateMessage.ts new file mode 100644 index 000000000..7ec224b99 --- /dev/null +++ b/shared/mcp/elicitationCreateMessage.ts @@ -0,0 +1,45 @@ +import type { + ElicitRequest, + ElicitResult, +} from "@modelcontextprotocol/sdk/types.js"; + +/** + * Represents a pending elicitation request from the server + */ +export class ElicitationCreateMessage { + public readonly id: string; + public readonly timestamp: Date; + public readonly request: ElicitRequest; + private resolvePromise?: (result: ElicitResult) => void; + + constructor( + request: ElicitRequest, + resolve: (result: ElicitResult) => void, + private onRemove: (id: string) => void, + ) { + this.id = `elicitation-${Date.now()}-${Math.random()}`; + this.timestamp = new Date(); + this.request = request; + this.resolvePromise = resolve; + } + + /** + * Respond to the elicitation request with a result + */ + async respond(result: ElicitResult): Promise { + if (!this.resolvePromise) { + throw new Error("Request already resolved"); + } + this.resolvePromise(result); + this.resolvePromise = undefined; + // Remove from pending list after responding + this.remove(); + } + + /** + * Remove this pending elicitation from the list + */ + remove(): void { + this.onRemove(this.id); + } +} diff --git a/shared/mcp/index.ts b/shared/mcp/index.ts index 784e0790d..0827a3404 100644 --- a/shared/mcp/index.ts +++ b/shared/mcp/index.ts @@ -1,9 +1,12 @@ // Main MCP client module // Re-exports the primary API for MCP client/server interaction -export { InspectorClient, SamplingCreateMessage } from "./inspectorClient.js"; +export { InspectorClient } from "./inspectorClient.js"; export type { InspectorClientOptions } from "./inspectorClient.js"; +// Re-export type-safe event target types for consumers +export type { InspectorClientEventMap } from "./inspectorClientEventTarget.js"; + export { loadMcpServersConfig, argsToMcpServerConfig } from "./config.js"; // Re-export ContentCache diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index 3fcf2cf19..2a9e46fe2 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -58,6 +58,9 @@ import { } from "../json/jsonUtils.js"; import { UriTemplate } from "@modelcontextprotocol/sdk/shared/uriTemplate.js"; import { ContentCache, type ReadOnlyContentCache } from "./contentCache.js"; +import { InspectorClientEventTarget } from "./inspectorClientEventTarget.js"; +import { SamplingCreateMessage } from "./samplingCreateMessage.js"; +import { ElicitationCreateMessage } from "./elicitationCreateMessage.js"; export interface InspectorClientOptions { /** * Client identity (name and version) @@ -132,106 +135,6 @@ export interface InspectorClientOptions { progress?: boolean; // default: true } -/** - * Represents a pending sampling request from the server - */ -export class SamplingCreateMessage { - public readonly id: string; - public readonly timestamp: Date; - public readonly request: CreateMessageRequest; - private resolvePromise?: (result: CreateMessageResult) => void; - private rejectPromise?: (error: Error) => void; - - constructor( - request: CreateMessageRequest, - resolve: (result: CreateMessageResult) => void, - reject: (error: Error) => void, - private onRemove: (id: string) => void, - ) { - this.id = `sampling-${Date.now()}-${Math.random()}`; - this.timestamp = new Date(); - this.request = request; - this.resolvePromise = resolve; - this.rejectPromise = reject; - } - - /** - * Respond to the sampling request with a result - */ - async respond(result: CreateMessageResult): Promise { - if (!this.resolvePromise) { - throw new Error("Request already resolved or rejected"); - } - this.resolvePromise(result); - this.resolvePromise = undefined; - this.rejectPromise = undefined; - // Remove from pending list after responding - this.remove(); - } - - /** - * Reject the sampling request with an error - */ - async reject(error: Error): Promise { - if (!this.rejectPromise) { - throw new Error("Request already resolved or rejected"); - } - this.rejectPromise(error); - this.resolvePromise = undefined; - this.rejectPromise = undefined; - // Remove from pending list after rejecting - this.remove(); - } - - /** - * Remove this pending sample from the list - */ - remove(): void { - this.onRemove(this.id); - } -} - -/** - * Represents a pending elicitation request from the server - */ -export class ElicitationCreateMessage { - public readonly id: string; - public readonly timestamp: Date; - public readonly request: ElicitRequest; - private resolvePromise?: (result: ElicitResult) => void; - - constructor( - request: ElicitRequest, - resolve: (result: ElicitResult) => void, - private onRemove: (id: string) => void, - ) { - this.id = `elicitation-${Date.now()}-${Math.random()}`; - this.timestamp = new Date(); - this.request = request; - this.resolvePromise = resolve; - } - - /** - * Respond to the elicitation request with a result - */ - async respond(result: ElicitResult): Promise { - if (!this.resolvePromise) { - throw new Error("Request already resolved"); - } - this.resolvePromise(result); - this.resolvePromise = undefined; - // Remove from pending list after responding - this.remove(); - } - - /** - * Remove this pending elicitation from the list - */ - remove(): void { - this.onRemove(this.id); - } -} - /** * InspectorClient wraps an MCP Client and provides: * - Message tracking and storage @@ -242,7 +145,7 @@ export class ElicitationCreateMessage { // Maximum number of pages to fetch when paginating through lists const MAX_PAGES = 100; -export class InspectorClient extends EventTarget { +export class InspectorClient extends InspectorClientEventTarget { private client: Client | null = null; private transport: any = null; private baseTransport: any = null; @@ -386,19 +289,15 @@ export class InspectorClient extends EventTarget { this.baseTransport.onclose = () => { if (this.status !== "disconnected") { this.status = "disconnected"; - this.dispatchEvent( - new CustomEvent("statusChange", { detail: this.status }), - ); - this.dispatchEvent(new Event("disconnect")); + this.dispatchTypedEvent("statusChange", this.status); + this.dispatchTypedEvent("disconnect"); } }; this.baseTransport.onerror = (error: Error) => { this.status = "error"; - this.dispatchEvent( - new CustomEvent("statusChange", { detail: this.status }), - ); - this.dispatchEvent(new CustomEvent("error", { detail: error })); + this.dispatchTypedEvent("statusChange", this.status); + this.dispatchTypedEvent("error", error); }; // Build client capabilities @@ -442,21 +341,17 @@ export class InspectorClient extends EventTarget { try { this.status = "connecting"; - this.dispatchEvent( - new CustomEvent("statusChange", { detail: this.status }), - ); + this.dispatchTypedEvent("statusChange", this.status); // Clear message history on connect (start fresh for new session) // Don't clear stderrLogs - they persist across reconnects this.messages = []; - this.dispatchEvent(new Event("messagesChange")); + this.dispatchTypedEvent("messagesChange"); await this.client.connect(this.transport); this.status = "connected"; - this.dispatchEvent( - new CustomEvent("statusChange", { detail: this.status }), - ); - this.dispatchEvent(new Event("connect")); + this.dispatchTypedEvent("statusChange", this.status); + this.dispatchTypedEvent("connect"); // Always fetch server info (capabilities, serverInfo, instructions) - this is just cached data from initialize await this.fetchServerInfo(); @@ -519,7 +414,10 @@ export class InspectorClient extends EventTarget { RootsListChangedNotificationSchema, async () => { // Dispatch event to notify UI that server's roots may have changed - this.dispatchEvent(new Event("rootsChange")); + // Note: rootsChange is a CustomEvent with Root[] payload, not a signal event + // We'll reload roots when the UI requests them, so we don't need to pass data here + // For now, we'll just dispatch an empty array as a signal to reload + this.dispatchTypedEvent("rootsChange", this.roots || []); }, ); } @@ -581,11 +479,7 @@ export class InspectorClient extends EventTarget { // Clear cache for this resource (handles both regular resources and resource templates) this.cacheInternal.clearResourceAndResourceTemplate(uri); // Dispatch event to notify UI - this.dispatchEvent( - new CustomEvent("resourceUpdated", { - detail: { uri }, - }), - ); + this.dispatchTypedEvent("resourceUpdated", { uri }); } }, ); @@ -597,10 +491,9 @@ export class InspectorClient extends EventTarget { ProgressNotificationSchema, async (notification) => { // Dispatch event with full progress notification params - this.dispatchEvent( - new CustomEvent("progressNotification", { - detail: notification.params, - }), + this.dispatchTypedEvent( + "progressNotification", + notification.params, ); }, ); @@ -608,10 +501,11 @@ export class InspectorClient extends EventTarget { } } catch (error) { this.status = "error"; - this.dispatchEvent( - new CustomEvent("statusChange", { detail: this.status }), + this.dispatchTypedEvent("statusChange", this.status); + this.dispatchTypedEvent( + "error", + error instanceof Error ? error : new Error(String(error)), ); - this.dispatchEvent(new CustomEvent("error", { detail: error })); throw error; } } @@ -631,10 +525,8 @@ export class InspectorClient extends EventTarget { // But we also do it here in case disconnect() is called directly if (this.status !== "disconnected") { this.status = "disconnected"; - this.dispatchEvent( - new CustomEvent("statusChange", { detail: this.status }), - ); - this.dispatchEvent(new Event("disconnect")); + this.dispatchTypedEvent("statusChange", this.status); + this.dispatchTypedEvent("disconnect"); } // Clear server state (tools, resources, resource templates, prompts) on disconnect @@ -652,25 +544,13 @@ export class InspectorClient extends EventTarget { this.capabilities = undefined; this.serverInfo = undefined; this.instructions = undefined; - this.dispatchEvent(new CustomEvent("toolsChange", { detail: this.tools })); - this.dispatchEvent( - new CustomEvent("resourcesChange", { detail: this.resources }), - ); - this.dispatchEvent( - new CustomEvent("pendingSamplesChange", { detail: this.pendingSamples }), - ); - this.dispatchEvent( - new CustomEvent("promptsChange", { detail: this.prompts }), - ); - this.dispatchEvent( - new CustomEvent("capabilitiesChange", { detail: this.capabilities }), - ); - this.dispatchEvent( - new CustomEvent("serverInfoChange", { detail: this.serverInfo }), - ); - this.dispatchEvent( - new CustomEvent("instructionsChange", { detail: this.instructions }), - ); + this.dispatchTypedEvent("toolsChange", this.tools); + this.dispatchTypedEvent("resourcesChange", this.resources); + this.dispatchTypedEvent("pendingSamplesChange", this.pendingSamples); + this.dispatchTypedEvent("promptsChange", this.prompts); + this.dispatchTypedEvent("capabilitiesChange", this.capabilities); + this.dispatchTypedEvent("serverInfoChange", this.serverInfo); + this.dispatchTypedEvent("instructionsChange", this.instructions); } /** @@ -759,10 +639,8 @@ export class InspectorClient extends EventTarget { */ private addPendingSample(sample: SamplingCreateMessage): void { this.pendingSamples.push(sample); - this.dispatchEvent( - new CustomEvent("pendingSamplesChange", { detail: this.pendingSamples }), - ); - this.dispatchEvent(new CustomEvent("newPendingSample", { detail: sample })); + this.dispatchTypedEvent("pendingSamplesChange", this.pendingSamples); + this.dispatchTypedEvent("newPendingSample", sample); } /** @@ -772,11 +650,7 @@ export class InspectorClient extends EventTarget { const index = this.pendingSamples.findIndex((s) => s.id === id); if (index !== -1) { this.pendingSamples.splice(index, 1); - this.dispatchEvent( - new CustomEvent("pendingSamplesChange", { - detail: this.pendingSamples, - }), - ); + this.dispatchTypedEvent("pendingSamplesChange", this.pendingSamples); } } @@ -792,14 +666,11 @@ export class InspectorClient extends EventTarget { */ private addPendingElicitation(elicitation: ElicitationCreateMessage): void { this.pendingElicitations.push(elicitation); - this.dispatchEvent( - new CustomEvent("pendingElicitationsChange", { - detail: this.pendingElicitations, - }), - ); - this.dispatchEvent( - new CustomEvent("newPendingElicitation", { detail: elicitation }), + this.dispatchTypedEvent( + "pendingElicitationsChange", + this.pendingElicitations, ); + this.dispatchTypedEvent("newPendingElicitation", elicitation); } /** @@ -809,10 +680,9 @@ export class InspectorClient extends EventTarget { const index = this.pendingElicitations.findIndex((e) => e.id === id); if (index !== -1) { this.pendingElicitations.splice(index, 1); - this.dispatchEvent( - new CustomEvent("pendingElicitationsChange", { - detail: this.pendingElicitations, - }), + this.dispatchTypedEvent( + "pendingElicitationsChange", + this.pendingElicitations, ); } } @@ -945,9 +815,7 @@ export class InspectorClient extends EventTarget { // Update internal state this.tools = allTools; // Dispatch change event - this.dispatchEvent( - new CustomEvent("toolsChange", { detail: this.tools }), - ); + this.dispatchTypedEvent("toolsChange", this.tools); return allTools; } catch (error) { throw new Error( @@ -1029,18 +897,14 @@ export class InspectorClient extends EventTarget { // Store in cache this.cacheInternal.setToolCallResult(name, invocation); // Dispatch event - this.dispatchEvent( - new CustomEvent("toolCallResultChange", { - detail: { - toolName: name, - params: args, - result: invocation.result, - timestamp, - success: true, - metadata, - }, - }), - ); + this.dispatchTypedEvent("toolCallResultChange", { + toolName: name, + params: args, + result: invocation.result, + timestamp, + success: true, + metadata, + }); return invocation; } catch (error) { @@ -1072,19 +936,15 @@ export class InspectorClient extends EventTarget { // Store in cache (even on error) this.cacheInternal.setToolCallResult(name, invocation); // Dispatch event - this.dispatchEvent( - new CustomEvent("toolCallResultChange", { - detail: { - toolName: name, - params: args, - result: null, - timestamp, - success: false, - error: invocation.error, - metadata, - }, - }), - ); + this.dispatchTypedEvent("toolCallResultChange", { + toolName: name, + params: args, + result: null, + timestamp, + success: false, + error: invocation.error, + metadata, + }); return invocation; } @@ -1161,9 +1021,7 @@ export class InspectorClient extends EventTarget { // Update internal state this.resources = allResources; // Dispatch change event - this.dispatchEvent( - new CustomEvent("resourcesChange", { detail: this.resources }), - ); + this.dispatchTypedEvent("resourcesChange", this.resources); // Note: Cached content for existing resources is automatically preserved return allResources; } catch (error) { @@ -1201,15 +1059,11 @@ export class InspectorClient extends EventTarget { // Store in cache this.cacheInternal.setResource(uri, invocation); // Dispatch event - this.dispatchEvent( - new CustomEvent("resourceContentChange", { - detail: { - uri, - content: invocation, - timestamp: invocation.timestamp, - }, - }), - ); + this.dispatchTypedEvent("resourceContentChange", { + uri, + content: invocation, + timestamp: invocation.timestamp, + }); return invocation; } catch (error) { throw new Error( @@ -1282,17 +1136,12 @@ export class InspectorClient extends EventTarget { // Store in cache this.cacheInternal.setResourceTemplate(uriTemplateString, invocation); // Dispatch event - this.dispatchEvent( - new CustomEvent("resourceTemplateContentChange", { - detail: { - uriTemplate: uriTemplateString, - expandedUri, - content: invocation, - params, - timestamp: invocation.timestamp, - }, - }), - ); + this.dispatchTypedEvent("resourceTemplateContentChange", { + uriTemplate: uriTemplateString, + content: invocation, + params, + timestamp: invocation.timestamp, + }); return invocation; } @@ -1370,10 +1219,9 @@ export class InspectorClient extends EventTarget { // Update internal state this.resourceTemplates = allTemplates; // Dispatch change event - this.dispatchEvent( - new CustomEvent("resourceTemplatesChange", { - detail: this.resourceTemplates, - }), + this.dispatchTypedEvent( + "resourceTemplatesChange", + this.resourceTemplates, ); // Note: Cached content for existing templates is automatically preserved return allTemplates; @@ -1453,9 +1301,7 @@ export class InspectorClient extends EventTarget { // Update internal state this.prompts = allPrompts; // Dispatch change event - this.dispatchEvent( - new CustomEvent("promptsChange", { detail: this.prompts }), - ); + this.dispatchTypedEvent("promptsChange", this.prompts); // Note: Cached content for existing prompts is automatically preserved return allPrompts; } catch (error) { @@ -1506,16 +1352,11 @@ export class InspectorClient extends EventTarget { // Store in cache this.cacheInternal.setPrompt(name, invocation); // Dispatch event - this.dispatchEvent( - new CustomEvent("promptContentChange", { - detail: { - name, - content: invocation, - params: invocation.params, - timestamp: invocation.timestamp, - }, - }), - ); + this.dispatchTypedEvent("promptContentChange", { + name, + content: invocation, + timestamp: invocation.timestamp, + }); return invocation; } catch (error) { @@ -1605,20 +1446,14 @@ export class InspectorClient extends EventTarget { try { // Get server capabilities (cached from initialize response) this.capabilities = this.client.getServerCapabilities(); - this.dispatchEvent( - new CustomEvent("capabilitiesChange", { detail: this.capabilities }), - ); + this.dispatchTypedEvent("capabilitiesChange", this.capabilities); // Get server info (name, version) and instructions (cached from initialize response) this.serverInfo = this.client.getServerVersion(); this.instructions = this.client.getInstructions(); - this.dispatchEvent( - new CustomEvent("serverInfoChange", { detail: this.serverInfo }), - ); + this.dispatchTypedEvent("serverInfoChange", this.serverInfo); if (this.instructions !== undefined) { - this.dispatchEvent( - new CustomEvent("instructionsChange", { detail: this.instructions }), - ); + this.dispatchTypedEvent("instructionsChange", this.instructions); } } catch (error) { // Ignore errors in fetching server info @@ -1644,9 +1479,7 @@ export class InspectorClient extends EventTarget { } catch (err) { // Ignore errors, just leave empty this.resources = []; - this.dispatchEvent( - new CustomEvent("resourcesChange", { detail: this.resources }), - ); + this.dispatchTypedEvent("resourcesChange", this.resources); } // Also fetch resource templates @@ -1655,10 +1488,9 @@ export class InspectorClient extends EventTarget { } catch (err) { // Ignore errors, just leave empty this.resourceTemplates = []; - this.dispatchEvent( - new CustomEvent("resourceTemplatesChange", { - detail: this.resourceTemplates, - }), + this.dispatchTypedEvent( + "resourceTemplatesChange", + this.resourceTemplates, ); } } @@ -1669,9 +1501,7 @@ export class InspectorClient extends EventTarget { } catch (err) { // Ignore errors, just leave empty this.prompts = []; - this.dispatchEvent( - new CustomEvent("promptsChange", { detail: this.prompts }), - ); + this.dispatchTypedEvent("promptsChange", this.prompts); } } @@ -1681,9 +1511,7 @@ export class InspectorClient extends EventTarget { } catch (err) { // Ignore errors, just leave empty this.tools = []; - this.dispatchEvent( - new CustomEvent("toolsChange", { detail: this.tools }), - ); + this.dispatchTypedEvent("toolsChange", this.tools); } } } catch (error) { @@ -1697,8 +1525,8 @@ export class InspectorClient extends EventTarget { this.messages.shift(); } this.messages.push(entry); - this.dispatchEvent(new CustomEvent("message", { detail: entry })); - this.dispatchEvent(new Event("messagesChange")); + this.dispatchTypedEvent("message", entry); + this.dispatchTypedEvent("messagesChange"); } private updateMessageResponse( @@ -1709,8 +1537,8 @@ export class InspectorClient extends EventTarget { // Update the entry in place (mutate the object directly) requestEntry.response = response; requestEntry.duration = duration; - this.dispatchEvent(new CustomEvent("message", { detail: requestEntry })); - this.dispatchEvent(new Event("messagesChange")); + this.dispatchTypedEvent("message", requestEntry); + this.dispatchTypedEvent("messagesChange"); } private addStderrLog(entry: StderrLogEntry): void { @@ -1722,8 +1550,8 @@ export class InspectorClient extends EventTarget { this.stderrLogs.shift(); } this.stderrLogs.push(entry); - this.dispatchEvent(new CustomEvent("stderrLog", { detail: entry })); - this.dispatchEvent(new Event("stderrLogsChange")); + this.dispatchTypedEvent("stderrLog", entry); + this.dispatchTypedEvent("stderrLogsChange"); } private addFetchRequest(entry: FetchRequestEntry): void { @@ -1735,8 +1563,8 @@ export class InspectorClient extends EventTarget { this.fetchRequests.shift(); } this.fetchRequests.push(entry); - this.dispatchEvent(new CustomEvent("fetchRequest", { detail: entry })); - this.dispatchEvent(new Event("fetchRequestsChange")); + this.dispatchTypedEvent("fetchRequest", entry); + this.dispatchTypedEvent("fetchRequestsChange"); } /** @@ -1767,7 +1595,7 @@ export class InspectorClient extends EventTarget { this.roots = []; } this.roots = [...roots]; - this.dispatchEvent(new CustomEvent("rootsChange", { detail: this.roots })); + this.dispatchTypedEvent("rootsChange", this.roots); // Send notification to server - clients can send this notification to any server // The server doesn't need to advertise support for it @@ -1817,10 +1645,9 @@ export class InspectorClient extends EventTarget { try { await this.client.subscribeResource({ uri }); this.subscribedResources.add(uri); - this.dispatchEvent( - new CustomEvent("resourceSubscriptionsChange", { - detail: Array.from(this.subscribedResources), - }), + this.dispatchTypedEvent( + "resourceSubscriptionsChange", + Array.from(this.subscribedResources), ); } catch (error) { throw new Error( @@ -1841,10 +1668,9 @@ export class InspectorClient extends EventTarget { try { await this.client.unsubscribeResource({ uri }); this.subscribedResources.delete(uri); - this.dispatchEvent( - new CustomEvent("resourceSubscriptionsChange", { - detail: Array.from(this.subscribedResources), - }), + this.dispatchTypedEvent( + "resourceSubscriptionsChange", + Array.from(this.subscribedResources), ); } catch (error) { throw new Error( diff --git a/shared/mcp/inspectorClientEventTarget.ts b/shared/mcp/inspectorClientEventTarget.ts new file mode 100644 index 000000000..2ce2c1c18 --- /dev/null +++ b/shared/mcp/inspectorClientEventTarget.ts @@ -0,0 +1,183 @@ +/** + * Type-safe EventTarget for InspectorClient events + * + * This module provides a base class with overloaded addEventListener/removeEventListener + * methods and a dispatchTypedEvent method that give compile-time type safety for event + * names and event detail types. + */ + +import type { + ConnectionStatus, + MessageEntry, + StderrLogEntry, + FetchRequestEntry, + PromptGetInvocation, + ResourceReadInvocation, + ResourceTemplateReadInvocation, +} from "./types.js"; +import type { + Tool, + Resource, + ResourceTemplate, + Prompt, + ServerCapabilities, + Implementation, + Root, + Progress, + ReadResourceResult, +} from "@modelcontextprotocol/sdk/types.js"; +import type { SamplingCreateMessage } from "./samplingCreateMessage.js"; +import type { ElicitationCreateMessage } from "./elicitationCreateMessage.js"; + +/** + * Maps event names to their detail types for CustomEvents + */ +export interface InspectorClientEventMap { + statusChange: ConnectionStatus; + toolsChange: Tool[]; + resourcesChange: Resource[]; + resourceTemplatesChange: ResourceTemplate[]; + promptsChange: Prompt[]; + capabilitiesChange: ServerCapabilities | undefined; + serverInfoChange: Implementation | undefined; + instructionsChange: string | undefined; + message: MessageEntry; + stderrLog: StderrLogEntry; + fetchRequest: FetchRequestEntry; + error: Error; + resourceUpdated: { uri: string }; + progressNotification: Progress; + toolCallResultChange: { + toolName: string; + params: Record; + result: any; + timestamp: Date; + success: boolean; + error?: string; + metadata?: Record; + }; + resourceContentChange: { + uri: string; + content: ResourceReadInvocation; + timestamp: Date; + }; + resourceTemplateContentChange: { + uriTemplate: string; + content: ResourceTemplateReadInvocation; + params: Record; + timestamp: Date; + }; + promptContentChange: { + name: string; + content: PromptGetInvocation; + timestamp: Date; + }; + pendingSamplesChange: SamplingCreateMessage[]; + newPendingSample: SamplingCreateMessage; + pendingElicitationsChange: ElicitationCreateMessage[]; + newPendingElicitation: ElicitationCreateMessage; + rootsChange: Root[]; + resourceSubscriptionsChange: string[]; + // Signal events (no payload) + connect: void; + disconnect: void; + messagesChange: void; + stderrLogsChange: void; + fetchRequestsChange: void; +} + +/** + * Typed event class that extends CustomEvent with type-safe detail + */ +export class TypedEvent< + K extends keyof InspectorClientEventMap, +> extends CustomEvent { + constructor(type: K, detail: InspectorClientEventMap[K]) { + super(type, { detail }); + } +} + +/** + * Type-safe EventTarget for InspectorClient events + * + * Provides overloaded addEventListener/removeEventListener methods that + * give compile-time type safety for event names and event detail types. + * Extends the standard EventTarget, so all standard EventTarget functionality + * is still available. + */ +export class InspectorClientEventTarget extends EventTarget { + /** + * Dispatch a type-safe event + * For void events, no detail parameter is required (or allowed) + * For events with payloads, the detail parameter is required + */ + dispatchTypedEvent( + type: K, + ...args: InspectorClientEventMap[K] extends void + ? [] + : [detail: InspectorClientEventMap[K]] + ): void { + const detail = args[0] as InspectorClientEventMap[K]; + this.dispatchEvent(new TypedEvent(type, detail)); + } + + // Overload 1: All typed events + addEventListener( + type: K, + listener: (event: TypedEvent) => void, + options?: boolean | AddEventListenerOptions, + ): void; + + // Overload 2: Fallback for any string (for compatibility) + addEventListener( + type: string, + listener: EventListenerOrEventListenerObject | null, + options?: boolean | AddEventListenerOptions, + ): void; + + // Implementation - must be compatible with all overloads + addEventListener( + type: string, + listener: + | ((event: TypedEvent) => void) + | EventListenerOrEventListenerObject + | null, + options?: boolean | AddEventListenerOptions, + ): void { + super.addEventListener( + type, + listener as EventListenerOrEventListenerObject | null, + options, + ); + } + + // Overload 1: All typed events + removeEventListener( + type: K, + listener: (event: TypedEvent) => void, + options?: boolean | EventListenerOptions, + ): void; + + // Overload 2: Fallback for any string (for compatibility) + removeEventListener( + type: string, + listener: EventListenerOrEventListenerObject | null, + options?: boolean | EventListenerOptions, + ): void; + + // Implementation - must be compatible with all overloads + removeEventListener( + type: string, + listener: + | ((event: TypedEvent) => void) + | EventListenerOrEventListenerObject + | null, + options?: boolean | EventListenerOptions, + ): void { + super.removeEventListener( + type, + listener as EventListenerOrEventListenerObject | null, + options, + ); + } +} diff --git a/shared/mcp/samplingCreateMessage.ts b/shared/mcp/samplingCreateMessage.ts new file mode 100644 index 000000000..c7571612c --- /dev/null +++ b/shared/mcp/samplingCreateMessage.ts @@ -0,0 +1,63 @@ +import type { + CreateMessageRequest, + CreateMessageResult, +} from "@modelcontextprotocol/sdk/types.js"; + +/** + * Represents a pending sampling request from the server + */ +export class SamplingCreateMessage { + public readonly id: string; + public readonly timestamp: Date; + public readonly request: CreateMessageRequest; + private resolvePromise?: (result: CreateMessageResult) => void; + private rejectPromise?: (error: Error) => void; + + constructor( + request: CreateMessageRequest, + resolve: (result: CreateMessageResult) => void, + reject: (error: Error) => void, + private onRemove: (id: string) => void, + ) { + this.id = `sampling-${Date.now()}-${Math.random()}`; + this.timestamp = new Date(); + this.request = request; + this.resolvePromise = resolve; + this.rejectPromise = reject; + } + + /** + * Respond to the sampling request with a result + */ + async respond(result: CreateMessageResult): Promise { + if (!this.resolvePromise) { + throw new Error("Request already resolved or rejected"); + } + this.resolvePromise(result); + this.resolvePromise = undefined; + this.rejectPromise = undefined; + // Remove from pending list after responding + this.remove(); + } + + /** + * Reject the sampling request with an error + */ + async reject(error: Error): Promise { + if (!this.rejectPromise) { + throw new Error("Request already resolved or rejected"); + } + this.rejectPromise(error); + this.resolvePromise = undefined; + this.rejectPromise = undefined; + // Remove from pending list after rejecting + this.remove(); + } + + /** + * Remove this pending sample from the list + */ + remove(): void { + this.onRemove(this.id); + } +} diff --git a/shared/react/useInspectorClient.ts b/shared/react/useInspectorClient.ts index 04b163377..576e9e5ca 100644 --- a/shared/react/useInspectorClient.ts +++ b/shared/react/useInspectorClient.ts @@ -1,5 +1,6 @@ import { useState, useEffect, useCallback } from "react"; import { InspectorClient } from "../mcp/index.js"; +import type { TypedEvent } from "../mcp/inspectorClientEventTarget.js"; import type { ConnectionStatus, StderrLogEntry, @@ -100,62 +101,54 @@ export function useInspectorClient( setServerInfo(inspectorClient.getServerInfo()); setInstructions(inspectorClient.getInstructions()); - // Event handlers - // Note: We use event payloads when available for efficiency, with explicit type casting - // since EventTarget doesn't provide compile-time type safety - const onStatusChange = (event: Event) => { - const customEvent = event as CustomEvent; - setStatus(customEvent.detail); + // Event handlers - using type-safe event listeners + const onStatusChange = (event: TypedEvent<"statusChange">) => { + setStatus(event.detail); }; const onMessagesChange = () => { - // messagesChange doesn't include payload, so we fetch + // messagesChange is a void event, so we fetch setMessages(inspectorClient.getMessages()); }; const onStderrLogsChange = () => { - // stderrLogsChange doesn't include payload, so we fetch + // stderrLogsChange is a void event, so we fetch setStderrLogs(inspectorClient.getStderrLogs()); }; const onFetchRequestsChange = () => { - // fetchRequestsChange doesn't include payload, so we fetch + // fetchRequestsChange is a void event, so we fetch setFetchRequests(inspectorClient.getFetchRequests()); }; - const onToolsChange = (event: Event) => { - const customEvent = event as CustomEvent; - setTools(customEvent.detail); + const onToolsChange = (event: TypedEvent<"toolsChange">) => { + setTools(event.detail); }; - const onResourcesChange = (event: Event) => { - const customEvent = event as CustomEvent; - setResources(customEvent.detail); + const onResourcesChange = (event: TypedEvent<"resourcesChange">) => { + setResources(event.detail); }; - const onResourceTemplatesChange = (event: Event) => { - const customEvent = event as CustomEvent; - setResourceTemplates(customEvent.detail); + const onResourceTemplatesChange = ( + event: TypedEvent<"resourceTemplatesChange">, + ) => { + setResourceTemplates(event.detail); }; - const onPromptsChange = (event: Event) => { - const customEvent = event as CustomEvent; - setPrompts(customEvent.detail); + const onPromptsChange = (event: TypedEvent<"promptsChange">) => { + setPrompts(event.detail); }; - const onCapabilitiesChange = (event: Event) => { - const customEvent = event as CustomEvent; - setCapabilities(customEvent.detail); + const onCapabilitiesChange = (event: TypedEvent<"capabilitiesChange">) => { + setCapabilities(event.detail); }; - const onServerInfoChange = (event: Event) => { - const customEvent = event as CustomEvent; - setServerInfo(customEvent.detail); + const onServerInfoChange = (event: TypedEvent<"serverInfoChange">) => { + setServerInfo(event.detail); }; - const onInstructionsChange = (event: Event) => { - const customEvent = event as CustomEvent; - setInstructions(customEvent.detail); + const onInstructionsChange = (event: TypedEvent<"instructionsChange">) => { + setInstructions(event.detail); }; // Subscribe to events From f64313993f950e0dfb0effa969d34d2fd2efbaa9 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Sat, 24 Jan 2026 15:05:14 -0800 Subject: [PATCH 40/44] Added task support design doc --- docs/task-support-design.md | 350 ++++++++++++++++++++++++++++ docs/tui-web-client-feature-gaps.md | 97 +++++--- 2 files changed, 409 insertions(+), 38 deletions(-) create mode 100644 docs/task-support-design.md diff --git a/docs/task-support-design.md b/docs/task-support-design.md new file mode 100644 index 000000000..98c2ed82e --- /dev/null +++ b/docs/task-support-design.md @@ -0,0 +1,350 @@ +# Task Support Design and Implementation Plan + +## Overview + +Tasks (SEP-1686) were introduced in the MCP November 2025 release (version 2025-11-25) to move MCP beyond simple "wait-and-response" tool calls. They provide a standardized "call-now, fetch-later" pattern for long-running operations like document analysis, database indexing, or complex agentic reasoning. + +This document outlines the design and implementation plan for adding Task support to InspectorClient and the TUI. + +### Scope: Tools First, Resources and Prompts Later + +**Current Focus**: This implementation focuses on task support for **tools** (`tools/call`), as the SDK provides first-class support via `client.experimental.tasks.callToolStream()`. + +**Future Support**: At the protocol level, tasks could be supported for: + +- **Resources** (`resources/read`) - for long-running resource processing +- **Prompts** (`prompts/get`) - for prompt generation that requires processing + +However, the SDK does not currently provide built-in support for task-augmented resource or prompt requests. The design is structured to allow adding support for these operations later if/when the SDK adds first-class support (e.g., `client.experimental.tasks.readResourceStream()` or similar methods). + +**Design Principle**: InspectorClient's task support will wrap SDK methods rather than implementing protocol-level task handling directly. This ensures we leverage SDK features and maintain compatibility with SDK updates. + +## SDK API Overview + +The MCP TypeScript SDK provides task support through `client.experimental.tasks`: + +### Key Methods + +- **`callToolStream(params, resultSchema?, options?)`**: Calls a tool and returns an `AsyncGenerator` that yields: + - `taskCreated` - when a task is created (contains `task: Task`) + - `taskStatus` - status updates (contains `task: Task`) + - `result` - final result when task completes + - `error` - error if task fails +- **`getTask(taskId, options?)`**: Gets current task status (`GetTaskResult`) +- **`getTaskResult(taskId, resultSchema?, options?)`**: Retrieves result of completed task +- **`listTasks(cursor?, options?)`**: Lists tasks with pagination +- **`cancelTask(taskId, options?)`**: Cancels a running task + +### ResponseMessage Types + +```typescript +type ResponseMessage = + | TaskCreatedMessage // { type: 'taskCreated', task: Task } + | TaskStatusMessage // { type: 'taskStatus', task: Task } + | ResultMessage // { type: 'result', result: T } + | ErrorMessage; // { type: 'error', error: McpError } +``` + +The SDK handles all low-level protocol details (JSON-RPC, polling, state management). + +## Implementation Plan + +### Phase 1: InspectorClient Core Support + +#### 1.1 SDK Integration + +**Goal**: Wrap SDK's `client.experimental.tasks` API with InspectorClient's event-based pattern. + +**Implementation**: + +- Access SDK tasks via `this.client.experimental.tasks` (already available after `connect()`) +- Wrap SDK methods to dispatch InspectorClient events +- Track active tasks in a `Map` for event dispatching + +#### 1.2 Task-Aware Tool Calls + +**Goal**: Add explicit method for task-based tool execution, separate from immediate execution. + +**Implementation**: + +- Keep existing `callTool(name, args, metadata?, options?)` for immediate execution (wraps SDK's `client.callTool()`) + - Fails if tool has `execution.taskSupport: "required"` (must use `callToolStream()`) + - Works for tools with `taskSupport: "forbidden"` or `"optional"` (but won't create tasks) +- Add new `callToolStream(name, args, metadata?, options?)` method for task-based execution that: + - Calls `client.experimental.tasks.callToolStream()` + - Iterates the async generator + - Dispatches events for each message type + - Returns the final result or throws on error + - **Can be used on any tool**, regardless of `taskSupport`: + - `taskSupport: "forbidden"` → Returns immediate result (no task created) + - `taskSupport: "optional"` → Server decides: may create task or return immediately + - `taskSupport: "required"` → Will create a task (or fail if server doesn't support tasks) + - Message flow: + - **Task created**: Yields `taskCreated` → `taskStatus` updates → `result` (when complete) + - **Immediate result**: Yields `result` directly (no task created, but still uses streaming API) +- **Explicit choice**: Users must choose between: + - `callTool()` - immediate execution only (fails if tool requires tasks) + - `callToolStream()` - task-capable execution (handles all cases via streaming API) + +**Event Flow**: + +```typescript +// When taskCreated message received: +dispatchTypedEvent("taskCreated", { taskId, task }); + +// When taskStatus message received: +dispatchTypedEvent("taskStatusChange", { taskId, task }); + +// When result message received: +dispatchTypedEvent("taskCompleted", { taskId, result }); + +// When error message received: +dispatchTypedEvent("taskFailed", { taskId, error }); +``` + +#### 1.3 Task Management Methods + +**Goal**: Expose SDK task methods through InspectorClient. + +**Implementation**: + +- `getTask(taskId)`: Wraps `client.experimental.tasks.getTask()`, dispatches `taskStatusChange` event +- `getTaskResult(taskId)`: Wraps `client.experimental.tasks.getTaskResult()` +- `cancelTask(taskId)`: Wraps `client.experimental.tasks.cancelTask()`, dispatches `taskCancelled` event +- `listTasks(cursor?)`: Wraps `client.experimental.tasks.listTasks()`, dispatches `tasksChange` event + +#### 1.4 Event System Integration + +**Goal**: Dispatch events for task lifecycle changes. + +**Implementation**: +Add to `InspectorClientEventMap`: + +```typescript +taskCreated: { taskId: string; task: Task } +taskStatusChange: { taskId: string; task: Task } +taskCompleted: { taskId: string; result: CallToolResult } +taskFailed: { taskId: string; error: McpError } +taskCancelled: { taskId: string } +tasksChange: Task[] // All tasks from listTasks() +``` + +#### 1.5 Task State Tracking + +**Goal**: Track active tasks for UI display and event dispatching. + +**Implementation**: + +- Add `private activeTasks: Map` to InspectorClient +- Update map when: + - Task created (from `callToolStream`) + - Task status changes (from `taskStatus` messages or `getTask`) + - Task completed/failed/cancelled +- Clear tasks on disconnect +- Optionally: Use `listTasks()` on reconnect to recover tasks (if server supports it) + +#### 1.6 Elicitation and Sampling Integration + +**Goal**: Link elicitation and sampling requests to tasks when task enters `input_required` state. + +**How it works**: + +- When a task needs user input, the server: + 1. Updates task status to `input_required` + 2. Sends an elicitation request (`elicitation/create`) or sampling request (`sampling/createMessage`) to the client + 3. Includes `related-task` metadata (`io.modelcontextprotocol/related-task: { taskId }`) in the request +- When the client responds to the elicitation/sampling request, the server: + 1. Receives the response + 2. Updates task status back to `working` + 3. Continues task execution + +**Implementation**: + +- When task status becomes `input_required`, check for related elicitation or sampling request via `related-task` metadata +- Link elicitation/sampling to task in `ElicitationCreateMessage`/`SamplingCreateMessage` +- When elicitation/sampling is responded to, task automatically resumes (handled by server) +- Track relationship: `taskId -> elicitationId` or `taskId -> samplingId` mapping + +#### 1.7 Capability Detection + +**Goal**: Detect task support capabilities. + +**Implementation**: + +- Check `serverCapabilities.tasks` for `{ list: true, cancel: true }` to determine if server supports tasks +- Tool definitions already include `execution.taskSupport` hint (`required`, `optional`, `forbidden`) - no separate lookup method needed +- Users can check `tool.execution?.taskSupport` directly from tool definitions returned by `listTools()` or `listAllTools()` + +### Phase 2: TUI Support + +#### 2.1 Task Display + +**Goal**: Show active tasks in TUI. + +**Tasks**: + +- Add "Tasks" tab or section to TUI +- Display task list with: + - Task ID + - Status (with visual indicators) + - Created/updated timestamps + - Related tool call (if available) +- Show task details in modal or expandable view +- Display task results when completed +- Show error messages when failed + +#### 2.2 Task Actions + +**Goal**: Allow users to interact with tasks in TUI. + +**Tasks**: + +- Cancel task action (calls `cancelTask()`) +- View task result (calls `getTaskResult()`) +- Handle `input_required` state (link to elicitation UI) +- Auto-refresh task status (poll via `getTask()` or listen to events) + +#### 2.3 Tool Call Integration + +**Goal**: Update TUI tool call flow to support tasks. + +**Tasks**: + +- Detect task-supporting tools (via `execution.taskSupport` hint) +- Show option to "Call as Task" for supported tools +- When tool call returns a task (via `callToolStream`), show task status instead of immediate result +- Link tool calls to tasks in history + +## Design Decisions + +### 1. SDK-First Approach + +**Decision**: Use SDK's `experimental.tasks` API directly, wrap with InspectorClient events. + +**Rationale**: + +- SDK handles all protocol details (JSON-RPC, polling, state management) +- No need to reimplement low-level functionality +- Ensures compatibility with SDK updates +- Reduces maintenance burden + +**Implementation**: + +- All task operations go through `client.experimental.tasks` +- InspectorClient wraps SDK calls and dispatches events +- No custom TaskHandle class needed - SDK's streaming API is sufficient + +### 2. Event-Based API + +**Decision**: Use event-based API (consistent with existing InspectorClient patterns). + +**Rationale**: + +- InspectorClient already uses EventTarget pattern +- Events work well for TUI state management +- Allows multiple listeners for the same task +- Consistent with existing patterns (sampling, elicitation) + +**Implementation**: + +- Dispatch events for all task lifecycle changes +- TUI listens to events to update UI +- No callback-based API needed + +### 3. Task State Tracking + +**Decision**: Track tasks created through InspectorClient's API, but rely on SDK/server for authoritative state. + +**Rationale**: + +- SDK does not maintain an in-memory cache of tasks - you must call `getTask()` or `listTasks()` to get task state +- We receive task status updates through `callToolStream()` messages - we should cache these for event dispatching +- UI needs to display tasks without constantly calling `listTasks()` +- Tasks created through our API should be tracked to link them to tool calls and dispatch events +- For tasks created outside our API (e.g., by other clients), we can use `listTasks()` when needed + +**Implementation**: + +- Use `Map` in InspectorClient to track tasks we've seen +- Update map when: + - Task created (from `callToolStream` `taskCreated` message) + - Task status changes (from `callToolStream` `taskStatus` messages) + - Task completed/failed (from `callToolStream` `result`/`error` messages) + - Task status fetched via `getTask()` (update cache) +- Clear tasks on disconnect +- Use `listTasks()` to discover tasks created outside our API (e.g., on reconnect) +- Cache is for convenience/performance - authoritative state is always from server via SDK + +### 4. Streaming vs. Polling + +**Decision**: Use SDK's streaming API (`callToolStream`) as primary method, with polling methods as fallback. + +**Rationale**: + +- Streaming API provides real-time updates via async generator +- More efficient than manual polling +- SDK handles all the complexity +- Polling methods (`getTask`) available for manual refresh + +**Implementation**: + +- `callToolStream()` is the primary method for task-based tool calls +- `getTask()` available for manual status checks +- TUI can use either approach (streaming for new calls, polling for refresh) + +### 5. Elicitation and Sampling Integration + +**Decision**: Link elicitations and sampling requests to tasks via `related-task` metadata when task is `input_required`. + +**Rationale**: + +- Provides seamless UX for task input requirements +- Maintains relationship between task and elicitation/sampling requests +- Server handles task resumption after input provided +- Both elicitation and sampling work the same way: server sets task to `input_required`, sends request with `related-task` metadata, then resumes when client responds + +**Implementation**: + +- When task status becomes `input_required`, check for related elicitation or sampling request via `related-task` metadata +- Link elicitation/sampling to task in `ElicitationCreateMessage`/`SamplingCreateMessage` +- Track relationship for UI display (`taskId -> elicitationId` or `taskId -> samplingId`) + +## Testing Strategy + +### Unit Tests + +- [ ] Test `callToolStream()` with task creation +- [ ] Test event dispatching for task lifecycle +- [ ] Test `getTask()`, `getTaskResult()`, `cancelTask()`, `listTasks()` +- [ ] Test elicitation integration +- [ ] Test capability detection + +### Integration Tests + +- [ ] Test with mock MCP server that supports tasks +- [ ] Test task creation from tool calls +- [ ] Test streaming updates +- [ ] Test cancellation +- [ ] Test `input_required` → elicitation → resume flow + +### TUI Tests + +- [ ] Test task display in TUI +- [ ] Test task actions (cancel, view result) +- [ ] Test tool call integration +- [ ] Test elicitation integration + +## References + +- MCP Specification: [Tasks (2025-11-25)](https://modelcontextprotocol.io/specification/2025-11-25/basic/utilities/tasks) +- MCP SDK TypeScript: `@modelcontextprotocol/sdk/experimental/tasks` +- SDK Client API: `client.experimental.tasks` +- ResponseMessage Types: `@modelcontextprotocol/sdk/shared/responseMessage` + +## Next Steps + +1. **Implement Phase 1.1-1.4**: SDK integration and basic task methods +2. **Test**: Verify with mock task-supporting server +3. **Implement Phase 1.5-1.7**: State tracking, elicitation, capabilities +4. **Implement Phase 2**: TUI support +5. **Documentation**: Update user documentation and examples diff --git a/docs/tui-web-client-feature-gaps.md b/docs/tui-web-client-feature-gaps.md index 45d8aa72a..e2a1bcfd8 100644 --- a/docs/tui-web-client-feature-gaps.md +++ b/docs/tui-web-client-feature-gaps.md @@ -8,43 +8,44 @@ This document details the feature gaps between the TUI (Terminal User Interface) **InspectorClient** is the shared client library that provides the core MCP functionality. Both the TUI and web client use `InspectorClient` under the hood. The gaps documented here are primarily **UI-level gaps** - features that `InspectorClient` supports but are not yet exposed in the TUI interface. -| Feature | InspectorClient | Web Client UI | TUI | Gap Priority | -| ----------------------------------- | --------------- | ------------- | --- | ----------------- | +| Feature | InspectorClient | Web Client v1 | TUI | Gap Priority | +| ----------------------------------- | --------------- | ------------- | --- | ------------ | | **Resources** | -| List resources | ✅ | ✅ | ✅ | - | -| Read resource content | ✅ | ✅ | ✅ | - | -| List resource templates | ✅ | ✅ | ✅ | - | -| Read templated resources | ✅ | ✅ | ✅ | - | -| Resource subscriptions | ✅ | ✅ | ❌ | Medium | -| Resources listChanged notifications | ✅ | ✅ | ❌ | Medium | -| Pagination (resources) | ✅ | ✅ | ✅ | - | -| Pagination (resource templates) | ✅ | ✅ | ✅ | - | +| List resources | ✅ | ✅ | ✅ | - | +| Read resource content | ✅ | ✅ | ✅ | - | +| List resource templates | ✅ | ✅ | ✅ | - | +| Read templated resources | ✅ | ✅ | ✅ | - | +| Resource subscriptions | ✅ | ✅ | ❌ | Medium | +| Resources listChanged notifications | ✅ | ✅ | ❌ | Medium | +| Pagination (resources) | ✅ | ✅ | ✅ | - | +| Pagination (resource templates) | ✅ | ✅ | ✅ | - | | **Prompts** | -| List prompts | ✅ | ✅ | ✅ | - | -| Get prompt (no params) | ✅ | ✅ | ✅ | - | -| Get prompt (with params) | ✅ | ✅ | ✅ | - | -| Prompts listChanged notifications | ✅ | ✅ | ❌ | Medium | -| Pagination (prompts) | ✅ | ✅ | ✅ | - | +| List prompts | ✅ | ✅ | ✅ | - | +| Get prompt (no params) | ✅ | ✅ | ✅ | - | +| Get prompt (with params) | ✅ | ✅ | ✅ | - | +| Prompts listChanged notifications | ✅ | ✅ | ❌ | Medium | +| Pagination (prompts) | ✅ | ✅ | ✅ | - | | **Tools** | -| List tools | ✅ | ✅ | ✅ | - | -| Call tool | ✅ | ✅ | ✅ | - | -| Tools listChanged notifications | ✅ | ✅ | ❌ | Medium | -| Pagination (tools) | ✅ | ✅ | ✅ | - | +| List tools | ✅ | ✅ | ✅ | - | +| Call tool | ✅ | ✅ | ✅ | - | +| Tools listChanged notifications | ✅ | ✅ | ❌ | Medium | +| Pagination (tools) | ✅ | ✅ | ✅ | - | | **Roots** | -| List roots | ✅ | ✅ | ❌ | Medium | -| Set roots | ✅ | ✅ | ❌ | Medium | -| Roots listChanged notifications | ✅ | ✅ | ❌ | Medium | +| List roots | ✅ | ✅ | ❌ | Medium | +| Set roots | ✅ | ✅ | ❌ | Medium | +| Roots listChanged notifications | ✅ | ✅ | ❌ | Medium | | **Authentication** | -| OAuth 2.1 flow | ❌ | ✅ | ❌ | High | -| Custom headers | ✅ (config) | ✅ (UI) | ❌ | Medium | +| OAuth 2.1 flow | ❌ | ✅ | ❌ | High | +| Custom headers | ✅ (config) | ✅ (UI) | ❌ | Medium | | **Advanced Features** | -| Sampling requests | ✅ | ✅ | ❌ | High | -| Elicitation requests | ✅ | ✅ | ❌ | High | -| Completions (resource templates) | ✅ | ✅ | ❌ | Medium | -| Completions (prompts with params) | ✅ | ✅ | ❌ | Medium | -| Progress tracking | ✅ | ✅ | ❌ | Medium | +| Sampling requests | ✅ | ✅ | ❌ | High | +| Elicitation requests | ✅ | ✅ | ❌ | High | +| Tasks (long-running operations) | ❌ | ✅ | ❌ | High | +| Completions (resource templates) | ✅ | ✅ | ❌ | Medium | +| Completions (prompts with params) | ✅ | ✅ | ❌ | Medium | +| Progress tracking | ✅ | ✅ | ❌ | Medium | | **Other** | -| HTTP request tracking | ✅ | ❌ | ✅ | - (TUI advantage) | +| HTTP request tracking | ✅ | ❌ | ✅ | | ## Detailed Feature Gaps @@ -206,7 +207,23 @@ This document details the feature gaps between the TUI (Terminal User Interface) - Web client: `client/src/App.tsx` (lines 334-356, 653-669) - Web client: `client/src/utils/schemaUtils.ts` (schema resolution for elicitation) -### 5. Completions +### 5. Tasks (Long-Running Operations) + +**Status:** + +- ❌ Not yet implemented in InspectorClient +- ✅ Implemented in web client (as of recent release) +- ❌ Not yet implemented in TUI + +**Overview:** +Tasks (SEP-1686) were introduced in MCP version 2025-11-25 to support long-running operations through a "call-now, fetch-later" pattern. Tasks enable servers to return a taskId immediately and allow clients to poll for status and retrieve results later, avoiding connection timeouts. + +**Implementation Requirements:** + +- See [Task Support Design](./task-support-design.md) for detailed design and implementation plan +- InspectorClient needs task support to enable TUI task functionality + +### 6. Completions **InspectorClient Support:** @@ -516,16 +533,17 @@ Custom headers are used to send additional HTTP headers when connecting to MCP s 1. **OAuth** - Required for many MCP servers, critical for production use 2. **Sampling** - Core MCP capability, enables LLM sampling workflows 3. **Elicitation** - Core MCP capability, enables interactive workflows +4. **Tasks** - Core MCP capability (v2025-11-25), enables long-running operations without timeouts ### Medium Priority (Enhanced Features) -4. **Resource Subscriptions** - Useful for real-time resource updates -5. **Completions** - Enhances UX for form filling -6. **Custom Headers** - Useful for custom authentication schemes -7. **ListChanged Notifications** - Auto-refresh lists when server data changes -8. **Roots Support** - Manage file system access for servers -9. **Progress Tracking** - User feedback during long-running operations -10. **Pagination Support** - Handle large lists efficiently (COMPLETED) +5. **Resource Subscriptions** - Useful for real-time resource updates +6. **Completions** - Enhances UX for form filling +7. **Custom Headers** - Useful for custom authentication schemes +8. **ListChanged Notifications** - Auto-refresh lists when server data changes +9. **Roots Support** - Manage file system access for servers +10. **Progress Tracking** - User feedback during long-running operations +11. **Pagination Support** - Handle large lists efficiently (COMPLETED) ## InspectorClient Extensions Needed @@ -614,8 +632,11 @@ Based on this analysis, `InspectorClient` needs the following additions: - **Roots**: `InspectorClient` has full roots support with `getRoots()` and `setRoots()` methods, handler for `roots/list` requests, and notification support. Web client has a `RootsTab` UI for managing roots. TUI does not yet have UI for managing roots. - **Pagination**: Web client supports cursor-based pagination for all list methods (tools, resources, resource templates, prompts), tracking `nextCursor` state and making multiple requests to fetch all items. `InspectorClient` now fully supports pagination with cursor parameters in all list methods and `listAll*()` helper methods that automatically fetch all pages. TUI inherits this pagination support from `InspectorClient`. - **Progress Tracking**: Web client supports progress tracking for long-running operations by generating `progressToken` values, setting up `onprogress` callbacks, and displaying progress notifications. `InspectorClient` now supports progress notification handling (dispatches `progressNotification` events) and accepts `progressToken` in metadata. Clients can generate their own tokens and listen for events. The only missing feature is timeout reset on progress (`resetTimeoutOnProgress` option). TUI does not yet have UI support for displaying progress notifications. +- **Tasks**: Tasks (SEP-1686) were introduced in MCP version 2025-11-25 to support long-running operations through a standardized "call-now, fetch-later" pattern. Web client now supports tasks (as of recent release). InspectorClient and TUI do not yet support tasks. See [Task Support Design](./task-support-design.md) for the implementation plan. ## Related Documentation - [Shared Code Architecture](./shared-code-architecture.md) - Overall architecture and integration plan - [InspectorClient Details](./inspector-client-details.svg) - Visual diagram of InspectorClient responsibilities +- [Task Support Design](./task-support-design.md) - Design and implementation plan for Task support +- [MCP Clients Feature Support](https://modelcontextprotocol.info/docs/clients/) - High-level overview of MCP feature support across different clients From eda9803ca091a4e77c4ab58a0c8378c3b4e65aa8 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Sat, 24 Jan 2026 23:26:45 -0800 Subject: [PATCH 41/44] Task support including test fixture support and entensive tests --- docs/task-support-design.md | 386 +++++------ docs/tui-web-client-feature-gaps.md | 69 +- shared/__tests__/inspectorClient.test.ts | 787 +++++++++++++++++++++++ shared/mcp/elicitationCreateMessage.ts | 5 + shared/mcp/inspectorClient.ts | 373 ++++++++++- shared/mcp/inspectorClientEventTarget.ts | 15 +- shared/mcp/samplingCreateMessage.ts | 5 + shared/test/composable-test-server.ts | 173 ++++- shared/test/test-server-fixtures.ts | 454 ++++++++++++- 9 files changed, 2001 insertions(+), 266 deletions(-) diff --git a/docs/task-support-design.md b/docs/task-support-design.md index 98c2ed82e..ffcb32d9f 100644 --- a/docs/task-support-design.md +++ b/docs/task-support-design.md @@ -1,219 +1,222 @@ -# Task Support Design and Implementation Plan +# Task Support Design ## Overview Tasks (SEP-1686) were introduced in the MCP November 2025 release (version 2025-11-25) to move MCP beyond simple "wait-and-response" tool calls. They provide a standardized "call-now, fetch-later" pattern for long-running operations like document analysis, database indexing, or complex agentic reasoning. -This document outlines the design and implementation plan for adding Task support to InspectorClient and the TUI. +This document describes the task support implementation in `InspectorClient`. -### Scope: Tools First, Resources and Prompts Later +### Scope: Tools First -**Current Focus**: This implementation focuses on task support for **tools** (`tools/call`), as the SDK provides first-class support via `client.experimental.tasks.callToolStream()`. +**Current Implementation**: Task support is implemented for **tools** (`tools/call`), leveraging the SDK's first-class support via `client.experimental.tasks.callToolStream()`. -**Future Support**: At the protocol level, tasks could be supported for: +**Future Support**: At the protocol level, tasks could be supported for resources (`resources/read`) and prompts (`prompts/get`), but the SDK does not currently provide built-in support for these operations. The design is structured to allow adding support for these operations later if/when the SDK adds first-class support. -- **Resources** (`resources/read`) - for long-running resource processing -- **Prompts** (`prompts/get`) - for prompt generation that requires processing +**Design Principle**: InspectorClient's task support wraps SDK methods rather than implementing protocol-level task handling directly. This ensures we leverage SDK features and maintain compatibility with SDK updates. -However, the SDK does not currently provide built-in support for task-augmented resource or prompt requests. The design is structured to allow adding support for these operations later if/when the SDK adds first-class support (e.g., `client.experimental.tasks.readResourceStream()` or similar methods). +## Architecture -**Design Principle**: InspectorClient's task support will wrap SDK methods rather than implementing protocol-level task handling directly. This ensures we leverage SDK features and maintain compatibility with SDK updates. +### SDK Integration -## SDK API Overview +InspectorClient wraps the MCP TypeScript SDK's `client.experimental.tasks` API: -The MCP TypeScript SDK provides task support through `client.experimental.tasks`: +- **Streaming API**: `callToolStream()` uses the SDK's async generator pattern to receive real-time task updates +- **Task Management**: All task operations (`getTask`, `getTaskResult`, `cancelTask`, `listTasks`) delegate to SDK methods +- **State Management**: InspectorClient maintains a local cache of active tasks for UI display and event dispatching, but authoritative state always comes from the server via the SDK -### Key Methods +### Event-Based API -- **`callToolStream(params, resultSchema?, options?)`**: Calls a tool and returns an `AsyncGenerator` that yields: - - `taskCreated` - when a task is created (contains `task: Task`) - - `taskStatus` - status updates (contains `task: Task`) - - `result` - final result when task completes - - `error` - error if task fails -- **`getTask(taskId, options?)`**: Gets current task status (`GetTaskResult`) -- **`getTaskResult(taskId, resultSchema?, options?)`**: Retrieves result of completed task -- **`listTasks(cursor?, options?)`**: Lists tasks with pagination -- **`cancelTask(taskId, options?)`**: Cancels a running task +InspectorClient uses an event-driven architecture for task lifecycle notifications: -### ResponseMessage Types +- **Task Lifecycle Events**: `taskCreated`, `taskStatusChange`, `taskCompleted`, `taskFailed`, `taskCancelled` +- **Task List Events**: `tasksChange` (dispatched when `listTasks()` is called) +- **Tool Call Events**: `toolCallResultChange` (includes task results) -```typescript -type ResponseMessage = - | TaskCreatedMessage // { type: 'taskCreated', task: Task } - | TaskStatusMessage // { type: 'taskStatus', task: Task } - | ResultMessage // { type: 'result', result: T } - | ErrorMessage; // { type: 'error', error: McpError } -``` +This pattern is consistent with InspectorClient's existing event system and works well for UI state management. -The SDK handles all low-level protocol details (JSON-RPC, polling, state management). +### Task State Tracking -## Implementation Plan +InspectorClient maintains a `Map` cache of active tasks: -### Phase 1: InspectorClient Core Support +- **Cache Updates**: Tasks are added/updated when: + - Task is created (from `callToolStream` `taskCreated` message) + - Task status changes (from `callToolStream` `taskStatus` messages or `getTask()` calls) + - Task completes/fails (from `callToolStream` `result`/`error` messages) + - Tasks are listed (from `listTasks()` calls) +- **Cache Lifecycle**: Tasks are cleared on disconnect +- **Purpose**: The cache is for convenience and performance - authoritative state is always from the server via SDK -#### 1.1 SDK Integration +## API Reference -**Goal**: Wrap SDK's `client.experimental.tasks` API with InspectorClient's event-based pattern. +### Task-Aware Tool Execution -**Implementation**: +#### `callToolStream(name, args, generalMetadata?, toolSpecificMetadata?)` -- Access SDK tasks via `this.client.experimental.tasks` (already available after `connect()`) -- Wrap SDK methods to dispatch InspectorClient events -- Track active tasks in a `Map` for event dispatching +Calls a tool using the task-capable streaming API. This method can be used on any tool, regardless of `execution.taskSupport`: -#### 1.2 Task-Aware Tool Calls +- **`taskSupport: "forbidden"`** → Returns immediate result (no task created) +- **`taskSupport: "optional"`** → Server decides: may create task or return immediately +- **`taskSupport: "required"`** → Will create a task (or fail if server doesn't support tasks) -**Goal**: Add explicit method for task-based tool execution, separate from immediate execution. +**Message Flow**: -**Implementation**: +- **Task created**: Yields `taskCreated` → `taskStatus` updates → `result` (when complete) +- **Immediate result**: Yields `result` directly (no task created, but still uses streaming API) -- Keep existing `callTool(name, args, metadata?, options?)` for immediate execution (wraps SDK's `client.callTool()`) - - Fails if tool has `execution.taskSupport: "required"` (must use `callToolStream()`) - - Works for tools with `taskSupport: "forbidden"` or `"optional"` (but won't create tasks) -- Add new `callToolStream(name, args, metadata?, options?)` method for task-based execution that: - - Calls `client.experimental.tasks.callToolStream()` - - Iterates the async generator - - Dispatches events for each message type - - Returns the final result or throws on error - - **Can be used on any tool**, regardless of `taskSupport`: - - `taskSupport: "forbidden"` → Returns immediate result (no task created) - - `taskSupport: "optional"` → Server decides: may create task or return immediately - - `taskSupport: "required"` → Will create a task (or fail if server doesn't support tasks) - - Message flow: - - **Task created**: Yields `taskCreated` → `taskStatus` updates → `result` (when complete) - - **Immediate result**: Yields `result` directly (no task created, but still uses streaming API) -- **Explicit choice**: Users must choose between: - - `callTool()` - immediate execution only (fails if tool requires tasks) - - `callToolStream()` - task-capable execution (handles all cases via streaming API) +**Returns**: `Promise` with the final result -**Event Flow**: +**Events Dispatched**: -```typescript -// When taskCreated message received: -dispatchTypedEvent("taskCreated", { taskId, task }); +- `taskCreated` - when a task is created +- `taskStatusChange` - on each status update +- `taskCompleted` - when task completes successfully +- `taskFailed` - when task fails +- `toolCallResultChange` - when tool call completes (with result or error) -// When taskStatus message received: -dispatchTypedEvent("taskStatusChange", { taskId, task }); +#### `callTool(name, args, generalMetadata?, toolSpecificMetadata?)` -// When result message received: -dispatchTypedEvent("taskCompleted", { taskId, result }); +Calls a tool for immediate execution only. This method: -// When error message received: -dispatchTypedEvent("taskFailed", { taskId, error }); -``` +- **Fails** if tool has `execution.taskSupport: "required"` (must use `callToolStream()`) +- **Works** for tools with `taskSupport: "forbidden"` or `"optional"` (but won't create tasks) -#### 1.3 Task Management Methods +**Rationale**: Provides explicit choice between immediate execution and task-capable execution. -**Goal**: Expose SDK task methods through InspectorClient. +### Task Management Methods -**Implementation**: +#### `getTask(taskId: string): Promise` -- `getTask(taskId)`: Wraps `client.experimental.tasks.getTask()`, dispatches `taskStatusChange` event -- `getTaskResult(taskId)`: Wraps `client.experimental.tasks.getTaskResult()` -- `cancelTask(taskId)`: Wraps `client.experimental.tasks.cancelTask()`, dispatches `taskCancelled` event -- `listTasks(cursor?)`: Wraps `client.experimental.tasks.listTasks()`, dispatches `tasksChange` event +Retrieves the current status of a task by taskId. -#### 1.4 Event System Integration +**Events Dispatched**: `taskStatusChange` -**Goal**: Dispatch events for task lifecycle changes. +#### `getTaskResult(taskId: string): Promise` -**Implementation**: -Add to `InspectorClientEventMap`: +Retrieves the result of a completed task. The task must be in a terminal state (`completed`, `failed`, or `cancelled`). -```typescript -taskCreated: { taskId: string; task: Task } -taskStatusChange: { taskId: string; task: Task } -taskCompleted: { taskId: string; result: CallToolResult } -taskFailed: { taskId: string; error: McpError } -taskCancelled: { taskId: string } -tasksChange: Task[] // All tasks from listTasks() -``` +**Note**: No event is dispatched - the task is already completed. -#### 1.5 Task State Tracking +#### `cancelTask(taskId: string): Promise` -**Goal**: Track active tasks for UI display and event dispatching. +Cancels a running task. The task must be in a non-terminal state. -**Implementation**: +**Events Dispatched**: `taskCancelled` -- Add `private activeTasks: Map` to InspectorClient -- Update map when: - - Task created (from `callToolStream`) - - Task status changes (from `taskStatus` messages or `getTask`) - - Task completed/failed/cancelled -- Clear tasks on disconnect -- Optionally: Use `listTasks()` on reconnect to recover tasks (if server supports it) +#### `listTasks(cursor?: string): Promise<{ tasks: Task[]; nextCursor?: string }>` -#### 1.6 Elicitation and Sampling Integration +Lists all active tasks with optional pagination support. -**Goal**: Link elicitation and sampling requests to tasks when task enters `input_required` state. +**Events Dispatched**: `tasksChange` (with all tasks from the result) -**How it works**: +### Task State Access -- When a task needs user input, the server: - 1. Updates task status to `input_required` - 2. Sends an elicitation request (`elicitation/create`) or sampling request (`sampling/createMessage`) to the client - 3. Includes `related-task` metadata (`io.modelcontextprotocol/related-task: { taskId }`) in the request -- When the client responds to the elicitation/sampling request, the server: - 1. Receives the response - 2. Updates task status back to `working` - 3. Continues task execution +#### `getClientTasks(): Task[]` -**Implementation**: +Returns an array of all currently tracked tasks from the local cache. This is useful for UI display without constantly calling `listTasks()`. -- When task status becomes `input_required`, check for related elicitation or sampling request via `related-task` metadata -- Link elicitation/sampling to task in `ElicitationCreateMessage`/`SamplingCreateMessage` -- When elicitation/sampling is responded to, task automatically resumes (handled by server) -- Track relationship: `taskId -> elicitationId` or `taskId -> samplingId` mapping +**Note**: This returns cached tasks. For authoritative state, use `getTask()` or `listTasks()`. -#### 1.7 Capability Detection +### Capability Detection -**Goal**: Detect task support capabilities. +#### `getTaskCapabilities(): { list: boolean; cancel: boolean } | undefined` -**Implementation**: +Returns the server's task capabilities, or `undefined` if tasks are not supported. -- Check `serverCapabilities.tasks` for `{ list: true, cancel: true }` to determine if server supports tasks -- Tool definitions already include `execution.taskSupport` hint (`required`, `optional`, `forbidden`) - no separate lookup method needed -- Users can check `tool.execution?.taskSupport` directly from tool definitions returned by `listTools()` or `listAllTools()` +**Capabilities**: -### Phase 2: TUI Support +- `list: true` - Server supports `tasks/list` method +- `cancel: true` - Server supports `tasks/cancel` method -#### 2.1 Task Display +## Task Lifecycle Events -**Goal**: Show active tasks in TUI. +All task events are dispatched via InspectorClient's event system: -**Tasks**: +```typescript +// Task created +taskCreated: { taskId: string; task: Task } -- Add "Tasks" tab or section to TUI -- Display task list with: - - Task ID - - Status (with visual indicators) - - Created/updated timestamps - - Related tool call (if available) -- Show task details in modal or expandable view -- Display task results when completed -- Show error messages when failed +// Task status changed +taskStatusChange: { taskId: string; task: Task } -#### 2.2 Task Actions +// Task completed successfully +taskCompleted: { taskId: string; result: CallToolResult } -**Goal**: Allow users to interact with tasks in TUI. +// Task failed +taskFailed: { taskId: string; error: McpError } -**Tasks**: +// Task cancelled +taskCancelled: { taskId: string } -- Cancel task action (calls `cancelTask()`) -- View task result (calls `getTaskResult()`) -- Handle `input_required` state (link to elicitation UI) -- Auto-refresh task status (poll via `getTask()` or listen to events) +// Task list changed (from listTasks()) +tasksChange: Task[] +``` -#### 2.3 Tool Call Integration +**Usage Example**: -**Goal**: Update TUI tool call flow to support tasks. +```typescript +client.addEventListener("taskCreated", (event) => { + console.log("Task created:", event.detail.taskId); +}); + +client.addEventListener("taskStatusChange", (event) => { + console.log("Task status:", event.detail.task.status); +}); -**Tasks**: +client.addEventListener("taskCompleted", (event) => { + console.log("Task completed:", event.detail.result); +}); +``` -- Detect task-supporting tools (via `execution.taskSupport` hint) -- Show option to "Call as Task" for supported tools -- When tool call returns a task (via `callToolStream`), show task status instead of immediate result -- Link tool calls to tasks in history +## Elicitation and Sampling Integration + +Tasks can require user input through elicitation or sampling requests. When a task needs input: + +1. Server updates task status to `input_required` +2. Server sends an elicitation request (`elicitation/create`) or sampling request (`sampling/createMessage`) to the client +3. Server includes `related-task` metadata (`io.modelcontextprotocol/related-task: { taskId }`) in the request +4. When the client responds, the server: + - Receives the response + - Updates task status back to `working` + - Continues task execution + +### Implementation Details + +**ElicitationCreateMessage** and **SamplingCreateMessage** both include an optional `taskId` field that is automatically extracted from the request metadata when present: + +```typescript +// ElicitationCreateMessage +public readonly taskId?: string; // Extracted from request.params._meta[RELATED_TASK_META_KEY]?.taskId + +// SamplingCreateMessage +public readonly taskId?: string; // Extracted from request.params._meta[RELATED_TASK_META_KEY]?.taskId +``` + +This allows UI clients to: + +- Display which task is waiting for input +- Link elicitation/sampling UI to the associated task +- Show task status as `input_required` while waiting for user response + +**Usage Example**: + +```typescript +client.addEventListener("newPendingElicitation", (event) => { + const elicitation = event.detail; + if (elicitation.taskId) { + // This elicitation is linked to a task + const task = client + .getClientTasks() + .find((t) => t.taskId === elicitation.taskId); + console.log("Task waiting for input:", task?.status); // "input_required" + } +}); +``` + +## Progress Notifications + +Progress notifications can be linked to tasks via `related-task` metadata. When a server sends a progress notification with `related-task` metadata, the notification is associated with the specified task. + +**Implementation**: Progress notifications are dispatched via the `progressNotification` event. The event includes metadata that may contain `related-task` information, allowing UI clients to link progress updates to specific tasks. ## Design Decisions @@ -228,12 +231,6 @@ tasksChange: Task[] // All tasks from listTasks() - Ensures compatibility with SDK updates - Reduces maintenance burden -**Implementation**: - -- All task operations go through `client.experimental.tasks` -- InspectorClient wraps SDK calls and dispatches events -- No custom TaskHandle class needed - SDK's streaming API is sufficient - ### 2. Event-Based API **Decision**: Use event-based API (consistent with existing InspectorClient patterns). @@ -241,40 +238,22 @@ tasksChange: Task[] // All tasks from listTasks() **Rationale**: - InspectorClient already uses EventTarget pattern -- Events work well for TUI state management +- Events work well for UI state management (web client, TUI, etc.) - Allows multiple listeners for the same task - Consistent with existing patterns (sampling, elicitation) -**Implementation**: - -- Dispatch events for all task lifecycle changes -- TUI listens to events to update UI -- No callback-based API needed - ### 3. Task State Tracking **Decision**: Track tasks created through InspectorClient's API, but rely on SDK/server for authoritative state. **Rationale**: -- SDK does not maintain an in-memory cache of tasks - you must call `getTask()` or `listTasks()` to get task state +- SDK does not maintain an in-memory cache of tasks - We receive task status updates through `callToolStream()` messages - we should cache these for event dispatching - UI needs to display tasks without constantly calling `listTasks()` - Tasks created through our API should be tracked to link them to tool calls and dispatch events - For tasks created outside our API (e.g., by other clients), we can use `listTasks()` when needed -**Implementation**: - -- Use `Map` in InspectorClient to track tasks we've seen -- Update map when: - - Task created (from `callToolStream` `taskCreated` message) - - Task status changes (from `callToolStream` `taskStatus` messages) - - Task completed/failed (from `callToolStream` `result`/`error` messages) - - Task status fetched via `getTask()` (update cache) -- Clear tasks on disconnect -- Use `listTasks()` to discover tasks created outside our API (e.g., on reconnect) -- Cache is for convenience/performance - authoritative state is always from server via SDK - ### 4. Streaming vs. Polling **Decision**: Use SDK's streaming API (`callToolStream`) as primary method, with polling methods as fallback. @@ -286,12 +265,6 @@ tasksChange: Task[] // All tasks from listTasks() - SDK handles all the complexity - Polling methods (`getTask`) available for manual refresh -**Implementation**: - -- `callToolStream()` is the primary method for task-based tool calls -- `getTask()` available for manual status checks -- TUI can use either approach (streaming for new calls, polling for refresh) - ### 5. Elicitation and Sampling Integration **Decision**: Link elicitations and sampling requests to tasks via `related-task` metadata when task is `input_required`. @@ -303,36 +276,29 @@ tasksChange: Task[] // All tasks from listTasks() - Server handles task resumption after input provided - Both elicitation and sampling work the same way: server sets task to `input_required`, sends request with `related-task` metadata, then resumes when client responds -**Implementation**: - -- When task status becomes `input_required`, check for related elicitation or sampling request via `related-task` metadata -- Link elicitation/sampling to task in `ElicitationCreateMessage`/`SamplingCreateMessage` -- Track relationship for UI display (`taskId -> elicitationId` or `taskId -> samplingId`) +## Tool Support Hints -## Testing Strategy +Tools can declare their task support requirements via `execution.taskSupport`: -### Unit Tests +- **`"required"`**: Tool must be called via `callToolStream()` - will always create a task +- **`"optional"`**: Tool may be called via `callTool()` or `callToolStream()` - server decides whether to create a task +- **`"forbidden"`**: Tool must be called via `callTool()` - will never create a task (immediate return) -- [ ] Test `callToolStream()` with task creation -- [ ] Test event dispatching for task lifecycle -- [ ] Test `getTask()`, `getTaskResult()`, `cancelTask()`, `listTasks()` -- [ ] Test elicitation integration -- [ ] Test capability detection +**Access**: Tool definitions returned by `listTools()` or `listAllTools()` include `execution?.taskSupport`. -### Integration Tests +**Example**: -- [ ] Test with mock MCP server that supports tasks -- [ ] Test task creation from tool calls -- [ ] Test streaming updates -- [ ] Test cancellation -- [ ] Test `input_required` → elicitation → resume flow - -### TUI Tests - -- [ ] Test task display in TUI -- [ ] Test task actions (cancel, view result) -- [ ] Test tool call integration -- [ ] Test elicitation integration +```typescript +const tools = await client.listAllTools(); +const tool = tools.find((t) => t.name === "myTool"); +if (tool?.execution?.taskSupport === "required") { + // Must use callToolStream() + const result = await client.callToolStream("myTool", {}); +} else { + // Can use callTool() for immediate execution + const result = await client.callTool("myTool", {}); +} +``` ## References @@ -340,11 +306,5 @@ tasksChange: Task[] // All tasks from listTasks() - MCP SDK TypeScript: `@modelcontextprotocol/sdk/experimental/tasks` - SDK Client API: `client.experimental.tasks` - ResponseMessage Types: `@modelcontextprotocol/sdk/shared/responseMessage` - -## Next Steps - -1. **Implement Phase 1.1-1.4**: SDK integration and basic task methods -2. **Test**: Verify with mock task-supporting server -3. **Implement Phase 1.5-1.7**: State tracking, elicitation, capabilities -4. **Implement Phase 2**: TUI support -5. **Documentation**: Update user documentation and examples +- SDK Task Types: `@modelcontextprotocol/sdk/experimental/tasks/types` +- Related Task Metadata: `io.modelcontextprotocol/related-task` (from spec types) diff --git a/docs/tui-web-client-feature-gaps.md b/docs/tui-web-client-feature-gaps.md index e2a1bcfd8..405af1e91 100644 --- a/docs/tui-web-client-feature-gaps.md +++ b/docs/tui-web-client-feature-gaps.md @@ -40,7 +40,7 @@ This document details the feature gaps between the TUI (Terminal User Interface) | **Advanced Features** | | Sampling requests | ✅ | ✅ | ❌ | High | | Elicitation requests | ✅ | ✅ | ❌ | High | -| Tasks (long-running operations) | ❌ | ✅ | ❌ | High | +| Tasks (long-running operations) | ✅ | ✅ | ❌ | Medium | | Completions (resource templates) | ✅ | ✅ | ❌ | Medium | | Completions (prompts with params) | ✅ | ✅ | ❌ | Medium | | Progress tracking | ✅ | ✅ | ❌ | Medium | @@ -211,17 +211,74 @@ This document details the feature gaps between the TUI (Terminal User Interface) **Status:** -- ❌ Not yet implemented in InspectorClient +- ✅ **COMPLETED** - Fully implemented in InspectorClient - ✅ Implemented in web client (as of recent release) - ❌ Not yet implemented in TUI **Overview:** Tasks (SEP-1686) were introduced in MCP version 2025-11-25 to support long-running operations through a "call-now, fetch-later" pattern. Tasks enable servers to return a taskId immediately and allow clients to poll for status and retrieve results later, avoiding connection timeouts. +**InspectorClient Support:** + +- ✅ `callToolStream()` method - Calls tools with task support, returns streaming updates +- ✅ `getTask(taskId)` method - Retrieves task status by taskId +- ✅ `getTaskResult(taskId)` method - Retrieves task result once completed +- ✅ `cancelTask(taskId)` method - Cancels a running task +- ✅ `listTasks(cursor?)` method - Lists all active tasks with pagination support +- ✅ `getClientTasks()` method - Returns array of currently tracked tasks +- ✅ Task state tracking - Maintains cache of active tasks with automatic updates +- ✅ Task lifecycle events - Dispatches `taskCreated`, `taskStatusChange`, `taskCompleted`, `taskFailed`, `taskCancelled`, `tasksChange` events +- ✅ Elicitation integration - Links elicitation requests to tasks via `related-task` metadata +- ✅ Sampling integration - Links sampling requests to tasks via `related-task` metadata +- ✅ Progress notifications - Links progress notifications to tasks via `related-task` metadata +- ✅ Capability detection - `getTaskCapabilities()` checks server task support +- ✅ `callTool()` validation - Throws error if attempting to call tool with `taskSupport: "required"` using `callTool()` +- ✅ Task cleanup - Clears task cache on disconnect + +**Web Client Support:** + +- UI displays active tasks with status indicators +- Task status updates in real-time via event listeners +- Task cancellation UI (cancel button for running tasks) +- Task result display when tasks complete +- Integration with tool calls - shows task creation from `callToolStream()` +- Links tasks to elicitation/sampling requests when task is `input_required` + +**TUI Status:** + +- ❌ No UI for displaying active tasks +- ❌ No task status display or monitoring +- ❌ No task cancellation UI +- ❌ No task result display +- ❌ No integration with tool calls (tasks created via `callToolStream()` are not visible) +- ❌ No indication when tool requires task support (`taskSupport: "required"`) +- ❌ No linking of tasks to elicitation/sampling requests in UI +- ❌ No task lifecycle event handling in UI + **Implementation Requirements:** -- See [Task Support Design](./task-support-design.md) for detailed design and implementation plan -- InspectorClient needs task support to enable TUI task functionality +- ✅ InspectorClient task support - **COMPLETED** (see [Task Support Design](./task-support-design.md)) +- ❌ Add TUI UI for task management: + - Display list of active tasks with status (`working`, `input_required`, `completed`, `failed`, `cancelled`) + - Show task details (taskId, status, statusMessage, createdAt, lastUpdatedAt) + - Display task results when completed + - Cancel button for running tasks (call `cancelTask()`) + - Real-time status updates via `taskStatusChange` event listener + - Task lifecycle event handling (`taskCreated`, `taskCompleted`, `taskFailed`, `taskCancelled`) +- ❌ Integrate tasks with tool calls: + - Use `callToolStream()` for tools with `taskSupport: "required"` (instead of `callTool()`) + - Show task creation when tool call creates a task + - Link tool call results to tasks +- ❌ Integrate tasks with elicitation/sampling: + - Display which task is waiting for input when elicitation/sampling request has `taskId` + - Show task status as `input_required` while waiting for user response + - Link elicitation/sampling UI to associated task +- ❌ Add task capability detection: + - Check `getTaskCapabilities()` to determine if server supports tasks + - Only show task UI if server supports tasks +- ❌ Handle task-related errors: + - Show error when attempting to call `taskSupport: "required"` tool with `callTool()` + - Display task failure messages from `taskFailed` events ### 6. Completions @@ -533,7 +590,7 @@ Custom headers are used to send additional HTTP headers when connecting to MCP s 1. **OAuth** - Required for many MCP servers, critical for production use 2. **Sampling** - Core MCP capability, enables LLM sampling workflows 3. **Elicitation** - Core MCP capability, enables interactive workflows -4. **Tasks** - Core MCP capability (v2025-11-25), enables long-running operations without timeouts +4. **Tasks** - Core MCP capability (v2025-11-25), enables long-running operations without timeouts - ✅ **COMPLETED** in InspectorClient ### Medium Priority (Enhanced Features) @@ -632,7 +689,7 @@ Based on this analysis, `InspectorClient` needs the following additions: - **Roots**: `InspectorClient` has full roots support with `getRoots()` and `setRoots()` methods, handler for `roots/list` requests, and notification support. Web client has a `RootsTab` UI for managing roots. TUI does not yet have UI for managing roots. - **Pagination**: Web client supports cursor-based pagination for all list methods (tools, resources, resource templates, prompts), tracking `nextCursor` state and making multiple requests to fetch all items. `InspectorClient` now fully supports pagination with cursor parameters in all list methods and `listAll*()` helper methods that automatically fetch all pages. TUI inherits this pagination support from `InspectorClient`. - **Progress Tracking**: Web client supports progress tracking for long-running operations by generating `progressToken` values, setting up `onprogress` callbacks, and displaying progress notifications. `InspectorClient` now supports progress notification handling (dispatches `progressNotification` events) and accepts `progressToken` in metadata. Clients can generate their own tokens and listen for events. The only missing feature is timeout reset on progress (`resetTimeoutOnProgress` option). TUI does not yet have UI support for displaying progress notifications. -- **Tasks**: Tasks (SEP-1686) were introduced in MCP version 2025-11-25 to support long-running operations through a standardized "call-now, fetch-later" pattern. Web client now supports tasks (as of recent release). InspectorClient and TUI do not yet support tasks. See [Task Support Design](./task-support-design.md) for the implementation plan. +- **Tasks**: Tasks (SEP-1686) were introduced in MCP version 2025-11-25 to support long-running operations through a standardized "call-now, fetch-later" pattern. Web client supports tasks (as of recent release). InspectorClient now fully supports tasks with `callToolStream()`, task management methods, event-driven API, and integration with elicitation/sampling/progress. TUI does not yet have UI for task management. See [Task Support Design](./task-support-design.md) for implementation details. ## Related Documentation diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index 1ca36987c..fb4939269 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -24,13 +24,21 @@ import { createNumberedResources, createNumberedResourceTemplates, createNumberedPrompts, + getTaskServerConfig, + createElicitationTaskTool, + createSamplingTaskTool, + createProgressTaskTool, + createFlexibleTaskTool, } from "../test/test-server-fixtures.js"; import type { MessageEntry, ConnectionStatus } from "../mcp/types.js"; import type { TypedEvent } from "../mcp/inspectorClientEventTarget.js"; import type { CreateMessageResult, ElicitResult, + CallToolResult, + Task, } from "@modelcontextprotocol/sdk/types.js"; +import { RELATED_TASK_META_KEY } from "@modelcontextprotocol/sdk/types.js"; describe("InspectorClient", () => { let client: InspectorClient; @@ -3861,4 +3869,783 @@ describe("InspectorClient", () => { await server.stop(); }); }); + + describe("Task Support", () => { + beforeEach(async () => { + // Create server with task support + const taskConfig = { + ...getTaskServerConfig(), + serverType: "sse" as const, + }; + server = createTestServerHttp(taskConfig); + await server.start(); + client = new InspectorClient( + { + type: "sse", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + await client.connect(); + }); + + it("should detect task capabilities", () => { + const capabilities = client.getTaskCapabilities(); + expect(capabilities).toBeDefined(); + expect(capabilities?.list).toBe(true); + expect(capabilities?.cancel).toBe(true); + }); + + it("should list tasks (empty initially)", async () => { + const result = await client.listTasks(); + expect(result).toHaveProperty("tasks"); + expect(Array.isArray(result.tasks)).toBe(true); + }); + + it("should call tool with task support using callToolStream", async () => { + const taskCreatedEvents: Array<{ taskId: string; task: Task }> = []; + const taskStatusEvents: Array<{ taskId: string; task: Task }> = []; + const taskCompletedEvents: Array<{ + taskId: string; + result: CallToolResult; + }> = []; + const toolCallResultEvents: Array<{ + toolName: string; + params: Record; + result: any; + timestamp: Date; + success: boolean; + error?: string; + metadata?: Record; + }> = []; + + client.addEventListener( + "taskCreated", + (event: TypedEvent<"taskCreated">) => { + taskCreatedEvents.push(event.detail); + }, + ); + client.addEventListener( + "taskStatusChange", + (event: TypedEvent<"taskStatusChange">) => { + taskStatusEvents.push(event.detail); + }, + ); + client.addEventListener( + "taskCompleted", + (event: TypedEvent<"taskCompleted">) => { + taskCompletedEvents.push(event.detail); + }, + ); + client.addEventListener( + "toolCallResultChange", + (event: TypedEvent<"toolCallResultChange">) => { + toolCallResultEvents.push(event.detail); + }, + ); + + const result = await client.callToolStream("simpleTask", { + message: "test task", + }); + + // Validate final result + expect(result.success).toBe(true); + expect(result.result).toBeDefined(); + expect(result.result).not.toBeNull(); + expect(result.result).toHaveProperty("content"); + + // Validate result content structure + const toolResult = result.result!; + expect(toolResult.content).toBeDefined(); + expect(Array.isArray(toolResult.content)).toBe(true); + expect(toolResult.content.length).toBe(1); + + const firstContent = toolResult.content[0]; + expect(firstContent).toBeDefined(); + expect(firstContent).not.toBeUndefined(); + expect(firstContent!.type).toBe("text"); + + // Validate result content value + if (firstContent && firstContent.type === "text") { + expect(firstContent.text).toBeDefined(); + const resultText = JSON.parse(firstContent.text); + expect(resultText.message).toBe("Task completed: test task"); + expect(resultText.taskId).toBeDefined(); + expect(typeof resultText.taskId).toBe("string"); + } else { + expect(firstContent?.type).toBe("text"); + } + + // Validate taskCreated event + expect(taskCreatedEvents.length).toBe(1); + const createdEvent = taskCreatedEvents[0]!; + expect(createdEvent.taskId).toBeDefined(); + expect(typeof createdEvent.taskId).toBe("string"); + expect(createdEvent.task).toBeDefined(); + expect(createdEvent.task.taskId).toBe(createdEvent.taskId); + expect(createdEvent.task.status).toBe("working"); + expect(createdEvent.task).toHaveProperty("ttl"); + expect(createdEvent.task).toHaveProperty("lastUpdatedAt"); + + const taskId = createdEvent.taskId; + + // Validate taskStatusChange events - simpleTask flow: + // The SDK may send multiple status updates. For simpleTask, we expect: + // 1. taskCreated (status: "working") - from SDK when task is created + // 2. taskStatusChange events - SDK may send status updates during execution + // - At minimum: one with status "completed" when task finishes + // - May also include: one with status "working" (initial status update) + // 3. taskCompleted - when result is available + + // Verify we got at least one status change + expect(taskStatusEvents.length).toBeGreaterThanOrEqual(1); + + // Verify all status events are for the same task and have valid structure + const statuses = taskStatusEvents.map((event) => { + expect(event.taskId).toBe(taskId); + expect(event.task.taskId).toBe(taskId); + expect(event.task).toHaveProperty("status"); + expect(event.task).toHaveProperty("ttl"); + expect(event.task).toHaveProperty("lastUpdatedAt"); + // Verify lastUpdatedAt is a valid ISO string if present + if (event.task.lastUpdatedAt) { + expect(typeof event.task.lastUpdatedAt).toBe("string"); + expect(() => new Date(event.task.lastUpdatedAt!)).not.toThrow(); + } + return event.task.status; + }); + + // The last status change must be "completed" + expect(statuses[statuses.length - 1]).toBe("completed"); + + // All statuses should be either "working" or "completed" (no input_required, failed, cancelled) + statuses.forEach((status) => { + expect(["working", "completed"]).toContain(status); + }); + + // If we have multiple events, they should be in order: working -> completed + if (taskStatusEvents.length > 1) { + // First status should be "working" + expect(statuses[0]).toBe("working"); + // Last status should be "completed" + expect(statuses[statuses.length - 1]).toBe("completed"); + } else { + // If only one event, it must be "completed" + expect(statuses[0]).toBe("completed"); + } + + // Validate taskCompleted event + expect(taskCompletedEvents.length).toBe(1); + const completedEvent = taskCompletedEvents[0]!; + expect(completedEvent.taskId).toBe(taskId); + expect(completedEvent.result).toBeDefined(); + expect(completedEvent.result).toEqual(toolResult); + + // Validate toolCallResultChange event + expect(toolCallResultEvents.length).toBe(1); + const toolCallEvent = toolCallResultEvents[0]!; + expect(toolCallEvent.toolName).toBe("simpleTask"); + expect(toolCallEvent.params).toEqual({ message: "test task" }); + expect(toolCallEvent.success).toBe(true); + expect(toolCallEvent.result).toEqual(toolResult); + expect(toolCallEvent.timestamp).toBeInstanceOf(Date); + + // Validate task in clientTasks + const clientTasks = client.getClientTasks(); + const cachedTask = clientTasks.find((t) => t.taskId === taskId); + expect(cachedTask).toBeDefined(); + expect(cachedTask!.taskId).toBe(taskId); + expect(cachedTask!.status).toBe("completed"); + expect(cachedTask!).toHaveProperty("ttl"); + expect(cachedTask!).toHaveProperty("lastUpdatedAt"); + + // Validate consistency: taskId from all sources matches + expect(createdEvent.taskId).toBe(taskId); + expect(completedEvent.taskId).toBe(taskId); + expect(cachedTask!.taskId).toBe(taskId); + if (firstContent && firstContent.type === "text") { + const resultText = JSON.parse(firstContent.text); + expect(resultText.taskId).toBe(taskId); + } + }); + + it("should get task by taskId", async () => { + // First create a task + const result = await client.callToolStream("simpleTask", { + message: "test", + }); + expect(result.success).toBe(true); + + // Get the taskId from active tasks + const activeTasks = client.getClientTasks(); + expect(activeTasks.length).toBeGreaterThan(0); + const activeTask = activeTasks[0]; + expect(activeTask).toBeDefined(); + const taskId = activeTask!.taskId; + + // Get the task + const task = await client.getTask(taskId); + expect(task).toBeDefined(); + expect(task.taskId).toBe(taskId); + expect(task.status).toBe("completed"); + }); + + it("should get task result", async () => { + // First create a task + const result = await client.callToolStream("simpleTask", { + message: "test result", + }); + expect(result.success).toBe(true); + expect(result.result).toBeDefined(); + expect(result.result).not.toBeNull(); + + // Get the taskId from client tasks + const clientTasks = client.getClientTasks(); + expect(clientTasks.length).toBeGreaterThan(0); + const task = clientTasks.find((t) => t.status === "completed"); + expect(task).toBeDefined(); + const taskId = task!.taskId; + + // Get the task result + const taskResult = await client.getTaskResult(taskId); + + // Validate result structure + expect(taskResult).toBeDefined(); + expect(taskResult).toHaveProperty("content"); + expect(Array.isArray(taskResult.content)).toBe(true); + expect(taskResult.content.length).toBe(1); + + // Validate content structure + const firstContent = taskResult.content[0]; + expect(firstContent).toBeDefined(); + expect(firstContent).not.toBeUndefined(); + expect(firstContent!.type).toBe("text"); + + // Validate content value + if (firstContent && firstContent.type === "text") { + expect(firstContent.text).toBeDefined(); + const resultText = JSON.parse(firstContent.text); + expect(resultText.message).toBe("Task completed: test result"); + expect(resultText.taskId).toBe(taskId); + } else { + expect(firstContent?.type).toBe("text"); + } + + // Validate that getTaskResult returns the same result as callToolStream + expect(taskResult).toEqual(result.result); + }); + + it("should throw error when calling callTool on task-required tool", async () => { + await expect( + client.callTool("simpleTask", { message: "test" }), + ).rejects.toThrow("requires task support"); + }); + + it("should clear tasks on disconnect", async () => { + // Create a task + await client.callToolStream("simpleTask", { message: "test" }); + expect(client.getClientTasks().length).toBeGreaterThan(0); + + // Disconnect + await client.disconnect(); + + // Tasks should be cleared + expect(client.getClientTasks().length).toBe(0); + }); + + it("should call tool with taskSupport: forbidden (immediate result, no task)", async () => { + // forbiddenTask should return immediately without creating a task + const result = await client.callToolStream("forbiddenTask", { + message: "test", + }); + + expect(result.success).toBe(true); + expect(result.result).toHaveProperty("content"); + // No task should be created + expect(client.getClientTasks().length).toBe(0); + }); + + it("should call tool with taskSupport: optional (may or may not create task)", async () => { + // optionalTask may create a task or return immediately + const result = await client.callToolStream("optionalTask", { + message: "test", + }); + + expect(result.success).toBe(true); + expect(result.result).toHaveProperty("content"); + // Task may or may not be created - both are valid + }); + + it("should handle task failure and dispatch taskFailed event", async () => { + await client.disconnect(); + await server?.stop(); + + const taskFailedEvents: any[] = []; + + // Create a task tool that will fail after a short delay + const failingTask = createFlexibleTaskTool({ + name: "failingTask", + taskSupport: "required", + delayMs: 100, + failAfterDelay: 50, // Fail after 50ms + }); + + const taskConfig = getTaskServerConfig(); + const failConfig = { + ...taskConfig, + serverType: "sse" as const, + tools: [failingTask, ...(taskConfig.tools || [])], + }; + server = createTestServerHttp(failConfig); + await server.start(); + client = new InspectorClient( + { + type: "sse", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + await client.connect(); + + client.addEventListener( + "taskFailed", + (event: TypedEvent<"taskFailed">) => { + taskFailedEvents.push(event.detail); + }, + ); + + // Call the failing task + await expect( + client.callToolStream("failingTask", { message: "test" }), + ).rejects.toThrow(); + + // Wait a bit for the event + await new Promise((resolve) => setTimeout(resolve, 200)); + + // Verify taskFailed event was dispatched + expect(taskFailedEvents.length).toBeGreaterThan(0); + expect(taskFailedEvents[0].taskId).toBeDefined(); + expect(taskFailedEvents[0].error).toBeDefined(); + }); + + it("should cancel a running task", async () => { + await client.disconnect(); + await server?.stop(); + + // Create a longer-running task tool + const longRunningTask = createFlexibleTaskTool({ + name: "longRunningTask", + taskSupport: "required", + delayMs: 2000, // 2 seconds + }); + + const taskConfig = getTaskServerConfig(); + const cancelConfig = { + ...taskConfig, + serverType: "sse" as const, + tools: [longRunningTask, ...(taskConfig.tools || [])], + }; + server = createTestServerHttp(cancelConfig); + await server.start(); + client = new InspectorClient( + { + type: "sse", + url: server.url, + }, + { + autoFetchServerContents: false, + }, + ); + await client.connect(); + + const cancelledEvents: any[] = []; + client.addEventListener( + "taskCancelled", + (event: TypedEvent<"taskCancelled">) => { + cancelledEvents.push(event.detail); + }, + ); + + // Start a long-running task + const taskPromise = client.callToolStream("longRunningTask", { + message: "test", + }); + + // Wait for task to be created + await new Promise((resolve) => setTimeout(resolve, 100)); + const activeTasks = client.getClientTasks(); + expect(activeTasks.length).toBeGreaterThan(0); + const activeTask = activeTasks[0]; + expect(activeTask).toBeDefined(); + const taskId = activeTask!.taskId; + + // Cancel the task + await client.cancelTask(taskId); + + // Wait for cancellation to complete + await new Promise((resolve) => setTimeout(resolve, 200)); + + // Verify task is cancelled + const task = await client.getTask(taskId); + expect(task.status).toBe("cancelled"); + + // Verify cancelled event was dispatched + expect(cancelledEvents.length).toBeGreaterThan(0); + expect(cancelledEvents[0].taskId).toBe(taskId); + + // Wait for the original promise (it should error or complete with cancellation) + try { + await taskPromise; + } catch { + // Expected if task was cancelled + } + }); + + it("should handle elicitation with task (input_required flow)", async () => { + await client.disconnect(); + await server?.stop(); + + const elicitationConfig = { + ...getTaskServerConfig(), + serverType: "sse" as const, + tools: [ + createElicitationTaskTool("taskWithElicitation"), + ...(getTaskServerConfig().tools || []), + ], + }; + server = createTestServerHttp(elicitationConfig); + await server.start(); + client = new InspectorClient( + { + type: "sse", + url: server.url, + }, + { + autoFetchServerContents: false, + elicit: true, + }, + ); + await client.connect(); + + // Set up promise to wait for elicitation + const elicitationPromise = new Promise( + (resolve) => { + const listener = (event: TypedEvent<"newPendingElicitation">) => { + resolve(event.detail); + client.removeEventListener("newPendingElicitation", listener); + }; + client.addEventListener("newPendingElicitation", listener); + }, + ); + + // Start the task + const taskPromise = client.callToolStream("taskWithElicitation", { + message: "test", + }); + + // Wait for elicitation request (with timeout) + const elicitation = await Promise.race([ + elicitationPromise, + new Promise((_, reject) => + setTimeout( + () => reject(new Error("Timeout waiting for elicitation")), + 2000, + ), + ), + ]); + + // Verify elicitation was received + expect(elicitation).toBeDefined(); + + // Verify task status is input_required (if taskId was extracted) + if (elicitation.taskId) { + const activeTasks = client.getClientTasks(); + const task = activeTasks.find((t) => t.taskId === elicitation.taskId); + if (task) { + expect(task.status).toBe("input_required"); + } + } + + // Respond to elicitation with correct format + await elicitation.respond({ + action: "accept", + content: { + input: "test input", + }, + }); + + // Wait for task to complete + const result = await taskPromise; + expect(result.success).toBe(true); + }); + + it("should handle sampling with task (input_required flow)", async () => { + await client.disconnect(); + await server?.stop(); + + const samplingConfig = { + ...getTaskServerConfig(), + serverType: "sse" as const, + tools: [ + createSamplingTaskTool("taskWithSampling"), + ...(getTaskServerConfig().tools || []), + ], + }; + server = createTestServerHttp(samplingConfig); + await server.start(); + client = new InspectorClient( + { + type: "sse", + url: server.url, + }, + { + autoFetchServerContents: false, + sample: true, + }, + ); + await client.connect(); + + // Set up promise to wait for sampling + const samplingPromise = new Promise((resolve) => { + const listener = (event: TypedEvent<"newPendingSample">) => { + resolve(event.detail); + client.removeEventListener("newPendingSample", listener); + }; + client.addEventListener("newPendingSample", listener); + }); + + // Start the task + const taskPromise = client.callToolStream("taskWithSampling", { + message: "test", + }); + + // Wait for sampling request (with longer timeout) + const sample = await Promise.race([ + samplingPromise, + new Promise((_, reject) => + setTimeout( + () => reject(new Error("Timeout waiting for sampling")), + 3000, + ), + ), + ]); + + // Verify sampling was received + expect(sample).toBeDefined(); + + // Wait a bit for task to be created + await new Promise((resolve) => setTimeout(resolve, 100)); + + // Verify task was created and is in input_required status + const activeTasks = client.getClientTasks(); + expect(activeTasks.length).toBeGreaterThan(0); + + // Find the task that triggered this sampling + // If taskId was extracted from metadata, use it; otherwise use the most recent task + const task = sample.taskId + ? activeTasks.find((t) => t.taskId === sample.taskId) + : activeTasks[activeTasks.length - 1]; + + expect(task).toBeDefined(); + expect(task!.status).toBe("input_required"); + + // Respond to sampling with correct format + await sample.respond({ + model: "test-model", + role: "assistant", + stopReason: "endTurn", + content: { + type: "text", + text: "Sampling response", + }, + }); + + // Wait for task to complete + const result = await taskPromise; + expect(result.success).toBe(true); + }); + + it("should handle progress notifications linked to tasks", async () => { + await client.disconnect(); + await server?.stop(); + + // createProgressTaskTool defaults to 5 progress units with 2000ms delay + // Progress notifications are sent at delayMs / progressUnits intervals (400ms each) + const progressConfig = { + ...getTaskServerConfig(), + serverType: "sse" as const, + tools: [ + createProgressTaskTool("taskWithProgress", 2000, 5), + ...(getTaskServerConfig().tools || []), + ], + }; + server = createTestServerHttp(progressConfig); + await server.start(); + client = new InspectorClient( + { + type: "sse", + url: server.url, + }, + { + autoFetchServerContents: false, + progress: true, + }, + ); + await client.connect(); + + const progressEvents: any[] = []; + const taskCreatedEvents: any[] = []; + const taskCompletedEvents: any[] = []; + + client.addEventListener( + "progressNotification", + (event: TypedEvent<"progressNotification">) => { + progressEvents.push(event.detail); + }, + ); + client.addEventListener( + "taskCreated", + (event: TypedEvent<"taskCreated">) => { + taskCreatedEvents.push(event.detail); + }, + ); + client.addEventListener( + "taskCompleted", + (event: TypedEvent<"taskCompleted">) => { + taskCompletedEvents.push(event.detail); + }, + ); + + // Generate a progress token + const progressToken = Math.random().toString(); + + // Call the tool with progress token + const resultPromise = client.callToolStream( + "taskWithProgress", + { + message: "test", + }, + undefined, + { progressToken }, + ); + + // Wait for task to be created + await new Promise((resolve) => { + if (taskCreatedEvents.length > 0) { + resolve(undefined); + } else { + const listener = (event: TypedEvent<"taskCreated">) => { + client.removeEventListener("taskCreated", listener); + resolve(undefined); + }; + client.addEventListener("taskCreated", listener); + } + }); + + expect(taskCreatedEvents.length).toBe(1); + const taskId = taskCreatedEvents[0].taskId; + + // Wait for all progress notifications to be sent + // Progress notifications are sent at ~400ms intervals (2000ms / 5 units) + // Wait for delayMs + buffer (2000ms + 500ms buffer = 2500ms) + await new Promise((resolve) => setTimeout(resolve, 2500)); + + // Wait for task to complete + const result = await resultPromise; + + // Verify task completed successfully + expect(result.success).toBe(true); + expect(result.result).toBeDefined(); + expect(result.result).not.toBeNull(); + expect(result.result).toHaveProperty("content"); + + // Validate the actual tool call response content + const toolResult = result.result!; + expect(toolResult.content).toBeDefined(); + expect(Array.isArray(toolResult.content)).toBe(true); + expect(toolResult.content.length).toBe(1); + + const firstContent = toolResult.content[0]; + expect(firstContent).toBeDefined(); + expect(firstContent).not.toBeUndefined(); + expect(firstContent!.type).toBe("text"); + + // Assert it's a text content block (for TypeScript narrowing) + expect(firstContent!.type === "text").toBe(true); + + // TypeScript type narrowing - we've already asserted it's text + if (firstContent && firstContent.type === "text") { + expect(firstContent.text).toBeDefined(); + // Parse and validate the JSON text content + const resultText = JSON.parse(firstContent.text); + expect(resultText.message).toBe("Task completed: test"); + expect(resultText.taskId).toBe(taskId); + } else { + // This should never happen due to the assertion above, but TypeScript needs it + expect(firstContent?.type).toBe("text"); + } + + // Verify taskCompleted event was dispatched + expect(taskCompletedEvents.length).toBe(1); + expect(taskCompletedEvents[0].taskId).toBe(taskId); + expect(taskCompletedEvents[0].result).toBeDefined(); + // Verify the taskCompleted event result matches the tool call result + expect(taskCompletedEvents[0].result).toEqual(toolResult); + + // Verify all 5 progress events were received + expect(progressEvents.length).toBe(5); + + // Verify each progress event + progressEvents.forEach((event, index) => { + // Verify progress token matches + expect(event.progressToken).toBe(progressToken); + + // Verify progress values are sequential (1, 2, 3, 4, 5) + expect(event.progress).toBe(index + 1); + expect(event.total).toBe(5); + + // Verify progress message format + expect(event.message).toBe(`Processing... ${index + 1}/5`); + + // Verify progress events are linked to the task via _meta + expect(event._meta).toBeDefined(); + expect(event._meta?.[RELATED_TASK_META_KEY]).toBeDefined(); + const relatedTask = event._meta?.[RELATED_TASK_META_KEY] as { + taskId: string; + }; + expect(relatedTask.taskId).toBe(taskId); + }); + + // Verify task is in completed state + const activeTasks = client.getClientTasks(); + const completedTask = activeTasks.find((t) => t.taskId === taskId); + expect(completedTask).toBeDefined(); + expect(completedTask!.status).toBe("completed"); + }); + + it("should handle listTasks pagination", async () => { + // Create multiple tasks + await client.callToolStream("simpleTask", { message: "task1" }); + await client.callToolStream("simpleTask", { message: "task2" }); + await client.callToolStream("simpleTask", { message: "task3" }); + + // Wait for tasks to complete + await new Promise((resolve) => setTimeout(resolve, 500)); + + // List tasks + const result = await client.listTasks(); + expect(result.tasks.length).toBeGreaterThan(0); + + // If there's a nextCursor, test pagination + if (result.nextCursor) { + const nextPage = await client.listTasks(result.nextCursor); + expect(nextPage.tasks).toBeDefined(); + expect(Array.isArray(nextPage.tasks)).toBe(true); + } + }); + }); }); diff --git a/shared/mcp/elicitationCreateMessage.ts b/shared/mcp/elicitationCreateMessage.ts index 7ec224b99..725a99812 100644 --- a/shared/mcp/elicitationCreateMessage.ts +++ b/shared/mcp/elicitationCreateMessage.ts @@ -2,6 +2,7 @@ import type { ElicitRequest, ElicitResult, } from "@modelcontextprotocol/sdk/types.js"; +import { RELATED_TASK_META_KEY } from "@modelcontextprotocol/sdk/types.js"; /** * Represents a pending elicitation request from the server @@ -10,6 +11,7 @@ export class ElicitationCreateMessage { public readonly id: string; public readonly timestamp: Date; public readonly request: ElicitRequest; + public readonly taskId?: string; private resolvePromise?: (result: ElicitResult) => void; constructor( @@ -20,6 +22,9 @@ export class ElicitationCreateMessage { this.id = `elicitation-${Date.now()}-${Math.random()}`; this.timestamp = new Date(); this.request = request; + // Extract taskId from request params metadata if present + const relatedTask = request.params?._meta?.[RELATED_TASK_META_KEY]; + this.taskId = relatedTask?.taskId; this.resolvePromise = resolve; } diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index 2a9e46fe2..65d406d41 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -33,11 +33,11 @@ import type { Resource, ResourceTemplate, Prompt, - CreateMessageRequest, + Root, CreateMessageResult, - ElicitRequest, ElicitResult, CallToolResult, + Task, } from "@modelcontextprotocol/sdk/types.js"; import { CreateMessageRequestSchema, @@ -49,7 +49,8 @@ import { PromptListChangedNotificationSchema, ResourceUpdatedNotificationSchema, ProgressNotificationSchema, - type Root, + McpError, + ErrorCode, } from "@modelcontextprotocol/sdk/types.js"; import { type JsonValue, @@ -186,6 +187,8 @@ export class InspectorClient extends InspectorClientEventTarget { }; // Resource subscriptions private subscribedResources: Set = new Set(); + // Task tracking + private clientTasks: Map = new Map(); constructor( private transportConfig: MCPServerConfig, @@ -541,6 +544,8 @@ export class InspectorClient extends InspectorClientEventTarget { this.cacheInternal.clearAll(); // Clear resource subscriptions on disconnect this.subscribedResources.clear(); + // Clear active tasks on disconnect + this.clientTasks.clear(); this.capabilities = undefined; this.serverInfo = undefined; this.instructions = undefined; @@ -627,6 +632,118 @@ export class InspectorClient extends InspectorClientEventTarget { return [...this.prompts]; } + /** + * Get all active tasks + */ + getClientTasks(): Task[] { + return Array.from(this.clientTasks.values()); + } + + /** + * Get task capabilities from server + * @returns Task capabilities or undefined if not supported + */ + getTaskCapabilities(): { list: boolean; cancel: boolean } | undefined { + if (!this.capabilities?.tasks) { + return undefined; + } + return { + list: !!this.capabilities.tasks.list, + cancel: !!this.capabilities.tasks.cancel, + }; + } + + /** + * Update task cache (internal helper) + */ + private updateClientTask(task: Task): void { + this.clientTasks.set(task.taskId, task); + } + + /** + * Get task status by taskId + * @param taskId Task identifier + * @returns Task status (GetTaskResult is the task itself) + */ + async getTask(taskId: string): Promise { + if (!this.client) { + throw new Error("Client is not connected"); + } + const result = await this.client.experimental.tasks.getTask(taskId); + // GetTaskResult is the task itself (taskId, status, ttl, etc.) + // Update task cache with result + this.updateClientTask(result); + // Dispatch event + this.dispatchTypedEvent("taskStatusChange", { + taskId: result.taskId, + task: result, + }); + return result; + } + + /** + * Get task result by taskId + * @param taskId Task identifier + * @returns Task result + */ + async getTaskResult(taskId: string): Promise { + if (!this.client) { + throw new Error("Client is not connected"); + } + // Use CallToolResultSchema for validation + const { CallToolResultSchema } = + await import("@modelcontextprotocol/sdk/types.js"); + return await this.client.experimental.tasks.getTaskResult( + taskId, + CallToolResultSchema, + ); + } + + /** + * Cancel a running task + * @param taskId Task identifier + * @returns Cancel result + */ + async cancelTask(taskId: string): Promise { + if (!this.client) { + throw new Error("Client is not connected"); + } + await this.client.experimental.tasks.cancelTask(taskId); + // Update task cache if we have it + const task = this.clientTasks.get(taskId); + if (task) { + const cancelledTask: Task = { + ...task, + status: "cancelled", + lastUpdatedAt: new Date().toISOString(), + }; + this.updateClientTask(cancelledTask); + } + // Dispatch event + this.dispatchTypedEvent("taskCancelled", { taskId }); + } + + /** + * List all tasks with optional pagination + * @param cursor Optional pagination cursor + * @returns List of tasks with optional next cursor + */ + async listTasks( + cursor?: string, + ): Promise<{ tasks: Task[]; nextCursor?: string }> { + if (!this.client) { + throw new Error("Client is not connected"); + } + const result = await this.client.experimental.tasks.listTasks(cursor); + // Update task cache with all returned tasks + for (const task of result.tasks) { + this.updateClientTask(task); + } + // Dispatch event with all tasks + this.dispatchTypedEvent("tasksChange", result.tasks); + return result; + } + /** * Get all pending sampling requests */ @@ -841,10 +958,18 @@ export class InspectorClient extends InspectorClientEventTarget { if (!this.client) { throw new Error("Client is not connected"); } - try { - const tools = await this.listAllToolsInternal(generalMetadata); - const tool = tools.find((t) => t.name === name); + // Check if tool requires task support BEFORE try block + // This ensures the error is thrown and not caught + const tools = await this.listAllToolsInternal(generalMetadata); + const tool = tools.find((t) => t.name === name); + if (tool?.execution?.taskSupport === "required") { + throw new Error( + `Tool "${name}" requires task support. Use callToolStream() instead of callTool().`, + ); + } + + try { let convertedArgs: Record = args; if (tool) { @@ -950,6 +1075,237 @@ export class InspectorClient extends InspectorClientEventTarget { } } + /** + * Call a tool with task support (streaming) + * This method supports tools with taskSupport: "required", "optional", or "forbidden" + * @param name Tool name + * @param args Tool arguments + * @param generalMetadata Optional general metadata + * @param toolSpecificMetadata Optional tool-specific metadata (takes precedence over general) + * @returns Tool call response + */ + async callToolStream( + name: string, + args: Record, + generalMetadata?: Record, + toolSpecificMetadata?: Record, + ): Promise { + if (!this.client) { + throw new Error("Client is not connected"); + } + try { + const tools = await this.listAllToolsInternal(generalMetadata); + const tool = tools.find((t) => t.name === name); + + let convertedArgs: Record = args; + + if (tool) { + // Convert parameters based on the tool's schema, but only for string values + const stringArgs: Record = {}; + for (const [key, value] of Object.entries(args)) { + if (typeof value === "string") { + stringArgs[key] = value; + } + } + + if (Object.keys(stringArgs).length > 0) { + const convertedStringArgs = convertToolParameters(tool, stringArgs); + convertedArgs = { ...args, ...convertedStringArgs }; + } + } + + // Merge general metadata with tool-specific metadata + let mergedMetadata: Record | undefined; + if (generalMetadata || toolSpecificMetadata) { + mergedMetadata = { + ...(generalMetadata || {}), + ...(toolSpecificMetadata || {}), + }; + } + + const timestamp = new Date(); + const metadata = + mergedMetadata && Object.keys(mergedMetadata).length > 0 + ? mergedMetadata + : undefined; + + // Call the streaming API + // Metadata should be in the params, not in options + const streamParams: any = { + name: name, + arguments: convertedArgs, + }; + if (metadata) { + streamParams._meta = metadata; + } + const stream = this.client.experimental.tasks.callToolStream( + streamParams, + undefined, // Use default CallToolResultSchema + ); + + let finalResult: CallToolResult | undefined; + let taskId: string | undefined; + let error: Error | undefined; + + // Iterate through the async generator + for await (const message of stream) { + switch (message.type) { + case "taskCreated": + // Task was created - update cache and dispatch event + this.updateClientTask(message.task); + taskId = message.task.taskId; + this.dispatchTypedEvent("taskCreated", { + taskId: message.task.taskId, + task: message.task, + }); + break; + + case "taskStatus": + // Task status updated - update cache and dispatch event + this.updateClientTask(message.task); + if (!taskId) { + taskId = message.task.taskId; + } + this.dispatchTypedEvent("taskStatusChange", { + taskId: message.task.taskId, + task: message.task, + }); + break; + + case "result": + // Task completed - update cache, dispatch event, and store result + // message.result is already CallToolResult from the stream + finalResult = message.result as CallToolResult; + if (taskId) { + // Update task status to completed if we have the task + const task = this.clientTasks.get(taskId); + if (task) { + const completedTask: Task = { + ...task, + status: "completed", + lastUpdatedAt: new Date().toISOString(), + }; + this.updateClientTask(completedTask); + this.dispatchTypedEvent("taskCompleted", { + taskId, + result: finalResult, + }); + } + } + break; + + case "error": + // Task failed - dispatch event and store error + error = new Error(message.error.message || "Task execution failed"); + if (taskId) { + // Update task status to failed if we have the task + const task = this.clientTasks.get(taskId); + if (task) { + const failedTask: Task = { + ...task, + status: "failed", + lastUpdatedAt: new Date().toISOString(), + statusMessage: message.error.message, + }; + this.updateClientTask(failedTask); + this.dispatchTypedEvent("taskFailed", { + taskId, + error: message.error, + }); + } + } + break; + } + } + + // If we got an error, throw it + if (error) { + throw error; + } + + // If we didn't get a result, something went wrong + // This can happen if the task completed but result wasn't in the stream + // Try to get it from the task result endpoint + if (!finalResult && taskId) { + try { + finalResult = + await this.client.experimental.tasks.getTaskResult(taskId); + } catch (resultError) { + throw new Error( + `Tool call did not return a result: ${resultError instanceof Error ? resultError.message : String(resultError)}`, + ); + } + } + if (!finalResult) { + throw new Error("Tool call did not return a result"); + } + + const invocation: ToolCallInvocation = { + toolName: name, + params: args, + result: finalResult, + timestamp, + success: true, + metadata, + }; + + // Store in cache + this.cacheInternal.setToolCallResult(name, invocation); + // Dispatch event + this.dispatchTypedEvent("toolCallResultChange", { + toolName: name, + params: args, + result: invocation.result, + timestamp, + success: true, + metadata, + }); + + return invocation; + } catch (error) { + // Merge general metadata with tool-specific metadata for error case + let mergedMetadata: Record | undefined; + if (generalMetadata || toolSpecificMetadata) { + mergedMetadata = { + ...(generalMetadata || {}), + ...(toolSpecificMetadata || {}), + }; + } + + const timestamp = new Date(); + const metadata = + mergedMetadata && Object.keys(mergedMetadata).length > 0 + ? mergedMetadata + : undefined; + + const invocation: ToolCallInvocation = { + toolName: name, + params: args, + result: null, + timestamp, + success: false, + error: error instanceof Error ? error.message : String(error), + metadata, + }; + + // Store in cache + this.cacheInternal.setToolCallResult(name, invocation); + // Dispatch event + this.dispatchTypedEvent("toolCallResultChange", { + toolName: name, + params: args, + result: null, + timestamp, + success: false, + error: error instanceof Error ? error.message : String(error), + metadata, + }); + + // Re-throw error + throw error; + } + } + /** * List available resources with pagination support * @param cursor Optional cursor for pagination @@ -1415,10 +1771,11 @@ export class InspectorClient extends InspectorClientEventTarget { total: response.completion.total, hasMore: response.completion.hasMore, }; - } catch (error: any) { + } catch (error) { // Handle MethodNotFound gracefully (server doesn't support completions) if ( - error?.code === -32601 || + (error instanceof McpError && + error.code === ErrorCode.MethodNotFound) || (error instanceof Error && (error.message.includes("Method not found") || error.message.includes("does not support completions"))) diff --git a/shared/mcp/inspectorClientEventTarget.ts b/shared/mcp/inspectorClientEventTarget.ts index 2ce2c1c18..24ca0914c 100644 --- a/shared/mcp/inspectorClientEventTarget.ts +++ b/shared/mcp/inspectorClientEventTarget.ts @@ -23,8 +23,10 @@ import type { ServerCapabilities, Implementation, Root, - Progress, - ReadResourceResult, + ProgressNotificationParams, + Task, + CallToolResult, + McpError, } from "@modelcontextprotocol/sdk/types.js"; import type { SamplingCreateMessage } from "./samplingCreateMessage.js"; import type { ElicitationCreateMessage } from "./elicitationCreateMessage.js"; @@ -46,7 +48,7 @@ export interface InspectorClientEventMap { fetchRequest: FetchRequestEntry; error: Error; resourceUpdated: { uri: string }; - progressNotification: Progress; + progressNotification: ProgressNotificationParams; toolCallResultChange: { toolName: string; params: Record; @@ -78,6 +80,13 @@ export interface InspectorClientEventMap { newPendingElicitation: ElicitationCreateMessage; rootsChange: Root[]; resourceSubscriptionsChange: string[]; + // Task events + taskCreated: { taskId: string; task: Task }; + taskStatusChange: { taskId: string; task: Task }; + taskCompleted: { taskId: string; result: CallToolResult }; + taskFailed: { taskId: string; error: McpError }; + taskCancelled: { taskId: string }; + tasksChange: Task[]; // Signal events (no payload) connect: void; disconnect: void; diff --git a/shared/mcp/samplingCreateMessage.ts b/shared/mcp/samplingCreateMessage.ts index c7571612c..c386cce1c 100644 --- a/shared/mcp/samplingCreateMessage.ts +++ b/shared/mcp/samplingCreateMessage.ts @@ -2,6 +2,7 @@ import type { CreateMessageRequest, CreateMessageResult, } from "@modelcontextprotocol/sdk/types.js"; +import { RELATED_TASK_META_KEY } from "@modelcontextprotocol/sdk/types.js"; /** * Represents a pending sampling request from the server @@ -10,6 +11,7 @@ export class SamplingCreateMessage { public readonly id: string; public readonly timestamp: Date; public readonly request: CreateMessageRequest; + public readonly taskId?: string; private resolvePromise?: (result: CreateMessageResult) => void; private rejectPromise?: (error: Error) => void; @@ -22,6 +24,9 @@ export class SamplingCreateMessage { this.id = `sampling-${Date.now()}-${Math.random()}`; this.timestamp = new Date(); this.request = request; + // Extract taskId from request params metadata if present + const relatedTask = request.params?._meta?.[RELATED_TASK_META_KEY]; + this.taskId = relatedTask?.taskId; this.resolvePromise = resolve; this.rejectPromise = reject; } diff --git a/shared/test/composable-test-server.ts b/shared/test/composable-test-server.ts index 6a8e4b270..8340cea4a 100644 --- a/shared/test/composable-test-server.ts +++ b/shared/test/composable-test-server.ts @@ -16,6 +16,15 @@ import type { ResourceTemplate, Prompt, } from "@modelcontextprotocol/sdk/types.js"; +import { + InMemoryTaskStore, + InMemoryTaskMessageQueue, +} from "@modelcontextprotocol/sdk/experimental/tasks/stores/in-memory.js"; +import type { + TaskStore, + TaskMessageQueue, + ToolTaskHandler, +} from "@modelcontextprotocol/sdk/experimental/tasks/interfaces.js"; import type { RegisteredTool, RegisteredResource, @@ -92,6 +101,14 @@ export interface ToolDefinition { ) => Promise; } +export interface TaskToolDefinition { + name: string; + description: string; + inputSchema?: ToolInputSchema; + execution?: { taskSupport: "required" | "optional" }; + handler: ToolTaskHandler; +} + export interface ResourceDefinition { uri: string; name: string; @@ -158,7 +175,7 @@ export interface ResourceTemplateDefinition { */ export interface ServerConfig { serverInfo: Implementation; // Server metadata (name, version, etc.) - required - tools?: ToolDefinition[]; // Tools to register (optional, empty array means no tools, but tools capability is still advertised) + tools?: (ToolDefinition | TaskToolDefinition)[]; // Tools to register (optional, empty array means no tools, but tools capability is still advertised) resources?: ResourceDefinition[]; // Resources to register (optional, empty array means no resources, but resources capability is still advertised) resourceTemplates?: ResourceTemplateDefinition[]; // Resource templates to register (optional, empty array means no templates, but resources capability is still advertised) prompts?: PromptDefinition[]; // Prompts to register (optional, empty array means no prompts, but prompts capability is still advertised) @@ -195,6 +212,24 @@ export interface ServerConfig { resourceTemplates?: number; prompts?: number; }; + /** + * Whether to advertise tasks capability + * If enabled, server will advertise tasks capability with list and cancel support + */ + tasks?: { + list?: boolean; // default: true + cancel?: boolean; // default: true + }; + /** + * Task store implementation (optional, defaults to InMemoryTaskStore) + * Only used if tasks capability is enabled + */ + taskStore?: TaskStore; + /** + * Task message queue implementation (optional, defaults to InMemoryTaskMessageQueue) + * Only used if tasks capability is enabled + */ + taskMessageQueue?: TaskMessageQueue; } /** @@ -208,6 +243,11 @@ export function createMcpServer(config: ServerConfig): McpServer { resources?: { subscribe?: boolean }; prompts?: {}; logging?: {}; + tasks?: { + list?: {}; + cancel?: {}; + requests?: { tools?: { call?: {} } }; + }; } = {}; if (config.tools !== undefined) { @@ -229,10 +269,36 @@ export function createMcpServer(config: ServerConfig): McpServer { if (config.logging === true) { capabilities.logging = {}; } + if (config.tasks !== undefined) { + capabilities.tasks = { + list: config.tasks.list !== false ? {} : undefined, + cancel: config.tasks.cancel !== false ? {} : undefined, + requests: { tools: { call: {} } }, + }; + // Remove undefined values + if (capabilities.tasks.list === undefined) { + delete capabilities.tasks.list; + } + if (capabilities.tasks.cancel === undefined) { + delete capabilities.tasks.cancel; + } + } - // Create the server with capabilities + // Create task store and message queue if tasks are enabled + const taskStore = + config.tasks !== undefined + ? config.taskStore || new InMemoryTaskStore() + : undefined; + const taskMessageQueue = + config.tasks !== undefined + ? config.taskMessageQueue || new InMemoryTaskMessageQueue() + : undefined; + + // Create the server with capabilities and task stores const mcpServer = new McpServer(config.serverInfo, { capabilities, + taskStore, + taskMessageQueue, }); // Create state (this is really session state, which is what we'll call it if we implement sessions at some point) @@ -289,49 +355,86 @@ export function createMcpServer(config: ServerConfig): McpServer { ); } + // Type guard to check if a tool is a task tool + function isTaskTool( + tool: ToolDefinition | TaskToolDefinition, + ): tool is TaskToolDefinition { + return ( + "handler" in tool && + typeof tool.handler === "object" && + tool.handler !== null && + "createTask" in tool.handler + ); + } + // Set up tools if (config.tools && config.tools.length > 0) { for (const tool of config.tools) { - const registered = mcpServer.registerTool( - tool.name, - { - description: tool.description, - inputSchema: tool.inputSchema, - }, - async (args, extra) => { - const result = await tool.handler( - args as Record, - context, - extra, - ); - // Handle different return types from tool handlers - // If handler returns content array directly (like get-annotated-message), use it - if (result && Array.isArray(result.content)) { - return { content: result.content }; - } - // If handler returns message (like echo), format it - if (result && typeof result.message === "string") { + if (isTaskTool(tool)) { + // Register task-based tool + // registerToolTask has two overloads: one with inputSchema (required) and one without + const registered = tool.inputSchema + ? mcpServer.experimental.tasks.registerToolTask( + tool.name, + { + description: tool.description, + inputSchema: tool.inputSchema, + execution: tool.execution, + }, + tool.handler, + ) + : mcpServer.experimental.tasks.registerToolTask( + tool.name, + { + description: tool.description, + execution: tool.execution, + }, + tool.handler, + ); + state.registeredTools.set(tool.name, registered); + } else { + // Register regular tool + const registered = mcpServer.registerTool( + tool.name, + { + description: tool.description, + inputSchema: tool.inputSchema, + }, + async (args, extra) => { + const result = await tool.handler( + args as Record, + context, + extra, + ); + // Handle different return types from tool handlers + // If handler returns content array directly (like get-annotated-message), use it + if (result && Array.isArray(result.content)) { + return { content: result.content }; + } + // If handler returns message (like echo), format it + if (result && typeof result.message === "string") { + return { + content: [ + { + type: "text", + text: result.message, + }, + ], + }; + } + // Otherwise, stringify the result return { content: [ { type: "text", - text: result.message, + text: JSON.stringify(result), }, ], }; - } - // Otherwise, stringify the result - return { - content: [ - { - type: "text", - text: JSON.stringify(result), - }, - ], - }; - }, - ); - state.registeredTools.set(tool.name, registered); + }, + ); + state.registeredTools.set(tool.name, registered); + } } } diff --git a/shared/test/test-server-fixtures.ts b/shared/test/test-server-fixtures.ts index 1276c9251..74549b2b1 100644 --- a/shared/test/test-server-fixtures.ts +++ b/shared/test/test-server-fixtures.ts @@ -14,17 +14,32 @@ import { } from "@modelcontextprotocol/sdk/types.js"; import type { ToolDefinition, + TaskToolDefinition, ResourceDefinition, PromptDefinition, ResourceTemplateDefinition, ServerConfig, TestServerContext, } from "./composable-test-server.js"; +import type { ElicitRequestFormParams } from "@modelcontextprotocol/sdk/types.js"; import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; +import type { + ToolTaskHandler, + TaskRequestHandlerExtra, + CreateTaskRequestHandlerExtra, +} from "@modelcontextprotocol/sdk/experimental/tasks/interfaces.js"; +import { RELATED_TASK_META_KEY } from "@modelcontextprotocol/sdk/types.js"; +import { toJsonSchemaCompat } from "@modelcontextprotocol/sdk/server/zod-json-schema-compat.js"; +import type { ShapeOutput } from "@modelcontextprotocol/sdk/server/zod-compat.js"; +import type { + GetTaskResult, + CallToolResult, +} from "@modelcontextprotocol/sdk/types.js"; // Re-export types and functions from composable-test-server for backward compatibility export type { ToolDefinition, + TaskToolDefinition, ResourceDefinition, PromptDefinition, ResourceTemplateDefinition, @@ -298,8 +313,9 @@ export function createCollectElicitationTool(): ToolDefinition { } const server = context.server; + // TODO: The fact that param attributes are "any" is not ideal const message = params.message as string; - const schema = params.schema as any; + const schema = params.schema as any; // TODO: This is also not ideal // Send an elicitation/create request to the client // The server.request() method takes a request object (with method) and result schema @@ -1121,6 +1137,442 @@ export function createRemovePromptTool(): ToolDefinition { }; } +/** + * Options for creating a flexible task tool fixture + */ +export interface FlexibleTaskToolOptions { + name?: string; // default: "flexibleTask" + taskSupport?: "required" | "optional" | "forbidden"; // default: "required" + immediateReturn?: boolean; // If true, tool returns immediately, no task created + delayMs?: number; // default: 1000 (time before task completes) + progressUnits?: number; // If provided, send progress notifications (default: 5 if progress enabled) + elicitationSchema?: z.ZodTypeAny; // If provided, require elicitation with this schema + samplingText?: string; // If provided, require sampling with this text + failAfterDelay?: number; // If set, task fails after this delay (ms) + cancelAfterDelay?: number; // If set, task cancels itself after this delay (ms) +} + +/** + * Create a flexible task tool that can be configured for various task scenarios + * Returns ToolDefinition if taskSupport is "forbidden" or immediateReturn is true + * Returns TaskToolDefinition otherwise + */ +export function createFlexibleTaskTool( + options: FlexibleTaskToolOptions = {}, +): ToolDefinition | TaskToolDefinition { + const { + name = "flexibleTask", + taskSupport = "required", + immediateReturn = false, + delayMs = 1000, + progressUnits, + elicitationSchema, + samplingText, + failAfterDelay, + cancelAfterDelay, + } = options; + + // If taskSupport is "forbidden" or immediateReturn is true, return a regular tool + if (taskSupport === "forbidden" || immediateReturn) { + return { + name, + description: `A flexible task tool (${taskSupport === "forbidden" ? "forbidden" : "immediate return"} mode)`, + inputSchema: { + message: z.string().optional().describe("Optional message parameter"), + }, + handler: async ( + params: Record, + context?: TestServerContext, + ): Promise => { + // Simulate some work + await new Promise((resolve) => setTimeout(resolve, delayMs)); + return { + message: `Task completed immediately: ${params.message || "no message"}`, + }; + }, + }; + } + + // Otherwise, return a task tool + // Note: inputSchema is for createTask handler only - getTask and getTaskResult don't use it + const taskTool: TaskToolDefinition = { + name, + description: `A flexible task tool supporting progress, elicitation, and sampling`, + inputSchema: { + message: z.string().optional().describe("Optional message parameter"), + }, + execution: { + taskSupport: taskSupport as "required" | "optional", + }, + handler: { + createTask: async (args, extra) => { + const message = (args as Record)?.message as + | string + | undefined; + const progressToken = extra._meta?.progressToken; + + // Create the task + const task = await extra.taskStore.createTask({}); + + // Start async task execution + (async () => { + try { + // Handle elicitation if schema provided + if (elicitationSchema) { + // Update task status to input_required + await extra.taskStore.updateTaskStatus( + task.taskId, + "input_required", + ); + + // Send elicitation request with related-task metadata + try { + // Convert Zod schema to JSON schema + const jsonSchema = toJsonSchemaCompat( + elicitationSchema, + ) as ElicitRequestFormParams["requestedSchema"]; + await extra.sendRequest( + { + method: "elicitation/create", + params: { + message: `Please provide input for task ${task.taskId}`, + requestedSchema: jsonSchema, + _meta: { + [RELATED_TASK_META_KEY]: { + taskId: task.taskId, + }, + }, + }, + }, + ElicitResultSchema, + ); + // Once response received, continue task + await extra.taskStore.updateTaskStatus(task.taskId, "working"); + } catch (error) { + console.error("[flexibleTask] Elicitation error:", error); + await extra.taskStore.updateTaskStatus( + task.taskId, + "failed", + error instanceof Error ? error.message : String(error), + ); + return; + } + } + + // Handle sampling if text provided + if (samplingText) { + // Update task status to input_required + await extra.taskStore.updateTaskStatus( + task.taskId, + "input_required", + ); + + // Send sampling request with related-task metadata + try { + await extra.sendRequest( + { + method: "sampling/createMessage", + params: { + messages: [ + { + role: "user", + content: { + type: "text", + text: samplingText, + }, + }, + ], + maxTokens: 100, + _meta: { + [RELATED_TASK_META_KEY]: { + taskId: task.taskId, + }, + }, + }, + }, + CreateMessageResultSchema, + ); + // Once response received, continue task + await extra.taskStore.updateTaskStatus(task.taskId, "working"); + } catch (error) { + console.error("[flexibleTask] Sampling error:", error); + await extra.taskStore.updateTaskStatus( + task.taskId, + "failed", + error instanceof Error ? error.message : String(error), + ); + return; + } + } + + // Send progress notifications if enabled + if (progressUnits !== undefined && progressUnits > 0) { + const units = progressUnits; + if (progressToken !== undefined) { + for (let i = 1; i <= units; i++) { + await new Promise((resolve) => + setTimeout(resolve, delayMs / units), + ); + try { + await extra.sendNotification({ + method: "notifications/progress", + params: { + progress: i, + total: units, + message: `Processing... ${i}/${units}`, + progressToken, + _meta: { + [RELATED_TASK_META_KEY]: { + taskId: task.taskId, + }, + }, + }, + }); + } catch (error) { + console.error( + "[flexibleTask] Progress notification error:", + error, + ); + } + } + } + } else { + // Wait for delay if no progress + await new Promise((resolve) => setTimeout(resolve, delayMs)); + } + + // Check for failure + if (failAfterDelay !== undefined) { + await new Promise((resolve) => + setTimeout(resolve, failAfterDelay), + ); + await extra.taskStore.updateTaskStatus( + task.taskId, + "failed", + "Task failed as configured", + ); + return; + } + + // Check for cancellation + if (cancelAfterDelay !== undefined) { + await new Promise((resolve) => + setTimeout(resolve, cancelAfterDelay), + ); + await extra.taskStore.updateTaskStatus(task.taskId, "cancelled"); + return; + } + + // Complete the task + // Store result BEFORE updating status to ensure it's available when SDK fetches it + const result = { + content: [ + { + type: "text", + text: JSON.stringify({ + message: `Task completed: ${message || "no message"}`, + taskId: task.taskId, + }), + }, + ], + }; + await extra.taskStore.storeTaskResult( + task.taskId, + "completed", + result, + ); + await extra.taskStore.updateTaskStatus(task.taskId, "completed"); + } catch (error) { + // Only update status if task is not already in a terminal state + try { + const currentTask = await extra.taskStore.getTask(task.taskId); + if ( + currentTask && + currentTask.status !== "completed" && + currentTask.status !== "failed" && + currentTask.status !== "cancelled" + ) { + await extra.taskStore.updateTaskStatus( + task.taskId, + "failed", + error instanceof Error ? error.message : String(error), + ); + } + } catch (statusError) { + // Ignore errors when checking/updating status + console.error( + "[flexibleTask] Error checking/updating task status:", + statusError, + ); + } + } + })(); + + return { + task, + }; + }, + getTask: async ( + _args: ShapeOutput<{ message?: z.ZodString }>, + extra: TaskRequestHandlerExtra, + ): Promise => { + // taskId is already in extra for TaskRequestHandlerExtra + // SDK extracts taskId from request and provides it in extra.taskId + // args parameter is present due to inputSchema but not used here + // GetTaskResult is the task object itself, not a wrapper + const task = await extra.taskStore.getTask(extra.taskId); + return task as GetTaskResult; + }, + getTaskResult: async ( + _args: ShapeOutput<{ message?: z.ZodString }>, + extra: TaskRequestHandlerExtra, + ): Promise => { + // taskId is already in extra for TaskRequestHandlerExtra + // SDK extracts taskId from request and provides it in extra.taskId + // args parameter is present due to inputSchema but not used here + // getTaskResult returns Result, but handler must return CallToolResult + const result = await extra.taskStore.getTaskResult(extra.taskId); + // Ensure result has content field (CallToolResult requirement) + if (!result.content) { + throw new Error("Task result does not have content field"); + } + return result as CallToolResult; + }, + }, + }; + + return taskTool; +} + +/** + * Create a simple task tool that completes after a delay + */ +export function createSimpleTaskTool( + name: string = "simpleTask", + delayMs: number = 1000, +): TaskToolDefinition { + return createFlexibleTaskTool({ + name, + taskSupport: "required", + delayMs, + }) as TaskToolDefinition; +} + +/** + * Create a task tool that sends progress notifications + */ +export function createProgressTaskTool( + name: string = "progressTask", + delayMs: number = 2000, + progressUnits: number = 5, +): TaskToolDefinition { + return createFlexibleTaskTool({ + name, + taskSupport: "required", + delayMs, + progressUnits, + }) as TaskToolDefinition; +} + +/** + * Create a task tool that requires elicitation input + */ +export function createElicitationTaskTool( + name: string = "elicitationTask", + elicitationSchema?: z.ZodTypeAny, +): TaskToolDefinition { + return createFlexibleTaskTool({ + name, + taskSupport: "required", + elicitationSchema: + elicitationSchema || + z.object({ + input: z.string().describe("User input required for task"), + }), + }) as TaskToolDefinition; +} + +/** + * Create a task tool that requires sampling input + */ +export function createSamplingTaskTool( + name: string = "samplingTask", + samplingText?: string, +): TaskToolDefinition { + return createFlexibleTaskTool({ + name, + taskSupport: "required", + samplingText: samplingText || "Please provide a response for this task", + }) as TaskToolDefinition; +} + +/** + * Create a task tool with optional task support + */ +export function createOptionalTaskTool( + name: string = "optionalTask", + delayMs: number = 500, +): TaskToolDefinition { + return createFlexibleTaskTool({ + name, + taskSupport: "optional", + delayMs, + }) as TaskToolDefinition; +} + +/** + * Create a task tool that is forbidden from using tasks (returns immediately) + */ +export function createForbiddenTaskTool( + name: string = "forbiddenTask", + delayMs: number = 100, +): ToolDefinition { + return createFlexibleTaskTool({ + name, + taskSupport: "forbidden", + delayMs, + }) as ToolDefinition; +} + +/** + * Create a task tool that returns immediately even if taskSupport is required + * (for testing callTool() with task-supporting tools) + */ +export function createImmediateReturnTaskTool( + name: string = "immediateReturnTask", + delayMs: number = 100, +): ToolDefinition { + return createFlexibleTaskTool({ + name, + taskSupport: "required", + immediateReturn: true, + delayMs, + }) as ToolDefinition; +} + +/** + * Get a server config with task support and task tools for testing + */ +export function getTaskServerConfig(): ServerConfig { + return { + serverInfo: createTestServerInfo("test-task-server", "1.0.0"), + tasks: { + list: true, + cancel: true, + }, + tools: [ + createSimpleTaskTool(), + createProgressTaskTool(), + createElicitationTaskTool(), + createSamplingTaskTool(), + createOptionalTaskTool(), + createForbiddenTaskTool(), + createImmediateReturnTaskTool(), + ], + logging: true, // Required for notifications/message and progress + }; +} + /** * Get default server config with common test tools, prompts, and resources */ From 039923fe719936e92731871abc61d568cadcbdb1 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Sun, 25 Jan 2026 22:33:14 -0800 Subject: [PATCH 42/44] Implemented url-elicitation support, tests, and test fixtures. Cleanup up elicitation fixtures (to use elicitInput). --- docs/tui-web-client-feature-gaps.md | 58 ++++++++++-- shared/__tests__/inspectorClient.test.ts | 104 ++++++++++++++++++++- shared/mcp/inspectorClient.ts | 39 ++++++-- shared/test/test-server-fixtures.ts | 110 +++++++++++++++++------ 4 files changed, 268 insertions(+), 43 deletions(-) diff --git a/docs/tui-web-client-feature-gaps.md b/docs/tui-web-client-feature-gaps.md index 405af1e91..998949814 100644 --- a/docs/tui-web-client-feature-gaps.md +++ b/docs/tui-web-client-feature-gaps.md @@ -39,7 +39,8 @@ This document details the feature gaps between the TUI (Terminal User Interface) | Custom headers | ✅ (config) | ✅ (UI) | ❌ | Medium | | **Advanced Features** | | Sampling requests | ✅ | ✅ | ❌ | High | -| Elicitation requests | ✅ | ✅ | ❌ | High | +| Elicitation requests (form) | ✅ | ✅ | ❌ | High | +| Elicitation requests (url) | ✅ | ❌ | ❌ | High | | Tasks (long-running operations) | ✅ | ✅ | ❌ | Medium | | Completions (resource templates) | ✅ | ✅ | ❌ | Medium | | Completions (prompts with params) | ✅ | ✅ | ❌ | Medium | @@ -175,37 +176,76 @@ This document details the feature gaps between the TUI (Terminal User Interface) - ✅ Provides `ElicitationCreateMessage` class with `respond()` and `remove()` methods - ✅ Dispatches `newPendingElicitation` and `pendingElicitationsChange` events - ✅ Methods: `getPendingElicitations()`, `removePendingElicitation(id)` +- ✅ Supports both form-based (user-input) and URL-based elicitation modes + +#### 4a. Form-Based Elicitation (User-Input) + +**InspectorClient Support:** + +- ✅ Handles `ElicitRequest` with `requestedSchema` (form-based mode) +- ✅ Extracts `taskId` from `related-task` metadata when present +- ✅ Test fixtures: `createCollectElicitationTool()` for testing form-based elicitation **Web Client Support:** -- UI tab (`ElicitationTab`) displays pending elicitation requests -- `ElicitationRequest` component: +- ✅ UI tab (`ElicitationTab`) displays pending form-based elicitation requests +- ✅ `ElicitationRequest` component: - Shows request message and schema - Generates dynamic form from JSON schema - Validates form data against schema - Handles accept/decline/cancel actions via `ElicitationCreateMessage.respond()` -- Listens to `newPendingElicitation` events to update UI +- ✅ Listens to `newPendingElicitation` events to update UI **TUI Status:** -- ❌ No UI for elicitation requests -- ❌ No elicitation request display or handling UI +- ❌ No UI for form-based elicitation requests +- ❌ No form generation from JSON schema +- ❌ No UI for accept/decline/cancel actions **Implementation Requirements:** -- Add UI in TUI for displaying pending elicitation requests +- Add UI in TUI for displaying pending form-based elicitation requests - Add form generation from JSON schema (similar to tool parameter forms) - Add UI for accept/decline/cancel actions (call `respond()` on `ElicitationCreateMessage`) - Listen to `newPendingElicitation` and `pendingElicitationsChange` events - Add elicitation tab or integrate into existing tabs +#### 4b. URL-Based Elicitation + +**InspectorClient Support:** + +- ✅ Handles `ElicitRequest` with `mode: "url"` and `url` parameter +- ✅ Extracts `taskId` from `related-task` metadata when present +- ✅ Test fixtures: `createCollectUrlElicitationTool()` for testing URL-based elicitation + +**Web Client Support:** + +- ❌ No UI for URL-based elicitation requests +- ❌ No handling for URL-based elicitation mode + +**TUI Status:** + +- ❌ No UI for URL-based elicitation requests +- ❌ No handling for URL-based elicitation mode + +**Implementation Requirements:** + +- Add UI in TUI for displaying pending URL-based elicitation requests +- Add UI to display URL and message to user +- Add UI for accept/decline/cancel actions (call `respond()` on `ElicitationCreateMessage`) +- Optionally: Open URL in browser or provide copy-to-clipboard functionality +- Listen to `newPendingElicitation` and `pendingElicitationsChange` events +- Add elicitation tab or integrate into existing tabs + **Code References:** - `InspectorClient`: `shared/mcp/inspectorClient.ts` (lines 90-92, 227-228, 420-433, 606-639) +- `ElicitationCreateMessage`: `shared/mcp/elicitationCreateMessage.ts` +- Test fixtures: `shared/test/test-server-fixtures.ts` (`createCollectElicitationTool`, `createCollectUrlElicitationTool`) - Web client: `client/src/components/ElicitationTab.tsx` -- Web client: `client/src/components/ElicitationRequest.tsx` +- Web client: `client/src/components/ElicitationRequest.tsx` (form-based only) - Web client: `client/src/App.tsx` (lines 334-356, 653-669) -- Web client: `client/src/utils/schemaUtils.ts` (schema resolution for elicitation) +- Web client: `client/src/utils/schemaUtils.ts` (schema resolution for form-based elicitation) ### 5. Tasks (Long-Running Operations) diff --git a/shared/__tests__/inspectorClient.test.ts b/shared/__tests__/inspectorClient.test.ts index fb4939269..0f56a2d57 100644 --- a/shared/__tests__/inspectorClient.test.ts +++ b/shared/__tests__/inspectorClient.test.ts @@ -12,7 +12,8 @@ import { createTestServerInfo, createFileResourceTemplate, createCollectSampleTool, - createCollectElicitationTool, + createCollectFormElicitationTool, + createCollectUrlElicitationTool, createSendNotificationTool, createListRootsTool, createArgsPrompt, @@ -1647,11 +1648,11 @@ describe("InspectorClient", () => { }); describe("Elicitation Requests", () => { - it("should handle elicitation requests from server and respond", async () => { + it("should handle form-based elicitation requests from server and respond", async () => { // Create a test server with the collectElicitation tool server = createTestServerHttp({ serverInfo: createTestServerInfo(), - tools: [createCollectElicitationTool()], + tools: [createCollectFormElicitationTool()], serverType: "streamable-http", }); @@ -1748,6 +1749,103 @@ describe("InspectorClient", () => { const pendingElicitations = client.getPendingElicitations(); expect(pendingElicitations.length).toBe(0); }); + + it("should handle URL-based elicitation requests from server and respond", async () => { + // Create a test server with the collectUrlElicitation tool + server = createTestServerHttp({ + serverInfo: createTestServerInfo(), + tools: [createCollectUrlElicitationTool()], + serverType: "streamable-http", + }); + + await server.start(); + + // Create client with elicitation enabled + client = new InspectorClient( + { + type: "streamable-http", + url: server.url, + }, + { + autoFetchServerContents: false, + elicit: { url: true }, // Enable elicitation capability + }, + ); + + await client.connect(); + + // Set up Promise to wait for elicitation request event + const elicitationRequestPromise = new Promise( + (resolve) => { + client.addEventListener( + "newPendingElicitation", + (event) => { + resolve(event.detail); + }, + { once: true }, + ); + }, + ); + + // Start the tool call (don't await yet - it will block until elicitation is responded to) + const toolResultPromise = client.callTool("collectUrlElicitation", { + message: "Please visit the URL to complete authentication", + url: "https://example.com/auth", + elicitationId: "test-url-elicitation-123", + }); + + // Wait for the elicitation request to arrive via event + const pendingElicitation = await elicitationRequestPromise; + + // Verify we received a URL-based elicitation request + expect(pendingElicitation.request.method).toBe("elicitation/create"); + expect(pendingElicitation.request.params.message).toBe( + "Please visit the URL to complete authentication", + ); + expect(pendingElicitation.request.params.mode).toBe("url"); + if (pendingElicitation.request.params.mode === "url") { + expect(pendingElicitation.request.params.url).toBe( + "https://example.com/auth", + ); + expect(pendingElicitation.request.params.elicitationId).toBe( + "test-url-elicitation-123", + ); + } + + // Respond to the URL-based elicitation request + const elicitationResponse: ElicitResult = { + action: "accept", + content: { + // URL-based elicitation typically doesn't have form data, but we can include metadata + completed: true, + }, + }; + + await pendingElicitation.respond(elicitationResponse); + + // Now await the tool result (it should complete now that we've responded) + const toolResult = await toolResultPromise; + + // Verify the tool result contains the elicitation response + expect(toolResult).toBeDefined(); + expect(toolResult.success).toBe(true); + expect(toolResult.result).toBeDefined(); + expect(toolResult.result!.content).toBeDefined(); + expect(Array.isArray(toolResult.result!.content)).toBe(true); + const toolContent = toolResult.result!.content as any[]; + expect(toolContent.length).toBeGreaterThan(0); + const toolMessage = toolContent[0]; + expect(toolMessage).toBeDefined(); + expect(toolMessage.type).toBe("text"); + if (toolMessage.type === "text") { + expect(toolMessage.text).toContain("URL elicitation response:"); + expect(toolMessage.text).toContain("accept"); + } + + // Verify the pending elicitation was removed + const pendingElicitations = client.getPendingElicitations(); + expect(pendingElicitations.length).toBe(0); + }); }); describe("Roots Support", () => { diff --git a/shared/mcp/inspectorClient.ts b/shared/mcp/inspectorClient.ts index 65d406d41..f3470d60f 100644 --- a/shared/mcp/inspectorClient.ts +++ b/shared/mcp/inspectorClient.ts @@ -109,9 +109,19 @@ export interface InspectorClientOptions { sample?: boolean; /** - * Whether to advertise elicitation capability (default: true) - */ - elicit?: boolean; + * Elicitation capability configuration + * - `true` - support form-based elicitation only (default, for backward compatibility) + * - `{ form: true }` - support form-based elicitation only + * - `{ url: true }` - support URL-based elicitation only + * - `{ form: true, url: true }` - support both form and URL-based elicitation + * - `false` or `undefined` - no elicitation support + */ + elicit?: + | boolean + | { + form?: boolean; + url?: boolean; + }; /** * Initial roots to configure. If provided (even if empty array), the client will @@ -159,7 +169,7 @@ export class InspectorClient extends InspectorClientEventTarget { private autoFetchServerContents: boolean; private initialLoggingLevel?: LoggingLevel; private sample: boolean; - private elicit: boolean; + private elicit: boolean | { form?: boolean; url?: boolean }; private progress: boolean; private status: ConnectionStatus = "disconnected"; // Server data @@ -309,8 +319,27 @@ export class InspectorClient extends InspectorClientEventTarget { if (this.sample) { capabilities.sampling = {}; } + // Handle elicitation capability with mode support if (this.elicit) { - capabilities.elicitation = {}; + const elicitationCap: NonNullable = {}; + + if (this.elicit === true) { + // Backward compatibility: `elicit: true` means form support only + elicitationCap.form = {}; + } else { + // Explicit mode configuration + if (this.elicit.form) { + elicitationCap.form = {}; + } + if (this.elicit.url) { + elicitationCap.url = {}; + } + } + + // Only add elicitation capability if at least one mode is enabled + if (Object.keys(elicitationCap).length > 0) { + capabilities.elicitation = elicitationCap; + } } // Advertise roots capability if roots option was provided (even if empty array) if (this.roots !== undefined) { diff --git a/shared/test/test-server-fixtures.ts b/shared/test/test-server-fixtures.ts index 74549b2b1..fe46a811f 100644 --- a/shared/test/test-server-fixtures.ts +++ b/shared/test/test-server-fixtures.ts @@ -21,7 +21,10 @@ import type { ServerConfig, TestServerContext, } from "./composable-test-server.js"; -import type { ElicitRequestFormParams } from "@modelcontextprotocol/sdk/types.js"; +import type { + ElicitRequestFormParams, + ElicitRequestURLParams, +} from "@modelcontextprotocol/sdk/types.js"; import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; import type { ToolTaskHandler, @@ -293,7 +296,7 @@ export function createListRootsTool(): ToolDefinition { /** * Create a "collectElicitation" tool that sends an elicitation request and returns the response */ -export function createCollectElicitationTool(): ToolDefinition { +export function createCollectFormElicitationTool(): ToolDefinition { return { name: "collectElicitation", description: @@ -317,25 +320,17 @@ export function createCollectElicitationTool(): ToolDefinition { const message = params.message as string; const schema = params.schema as any; // TODO: This is also not ideal - // Send an elicitation/create request to the client - // The server.request() method takes a request object (with method) and result schema + // Send a form-based elicitation request using the SDK's elicitInput method try { - const result = await server.server.request( - { - method: "elicitation/create", - params: { - message, - requestedSchema: schema, - }, - }, - ElicitResultSchema, - ); + const elicitationParams: ElicitRequestFormParams = { + message, + requestedSchema: schema, + }; - // Validate and return the result - const validatedResult = ElicitResultSchema.parse(result); + const result = await server.server.elicitInput(elicitationParams); return { - message: `Elicitation response: ${JSON.stringify(validatedResult)}`, + message: `Elicitation response: ${JSON.stringify(result)}`, }; } catch (error) { console.error( @@ -348,6 +343,65 @@ export function createCollectElicitationTool(): ToolDefinition { }; } +/** + * Create a "collectUrlElicitation" tool that sends a URL-based elicitation request + * to the client and returns the response + */ +export function createCollectUrlElicitationTool(): ToolDefinition { + return { + name: "collectUrlElicitation", + description: + "Send a URL-based elicitation request with the given message and URL and return the response", + inputSchema: { + message: z + .string() + .describe("Message to send in the elicitation request"), + url: z.string().url().describe("URL for the user to navigate to"), + elicitationId: z + .string() + .optional() + .describe("Optional elicitation ID (generated if not provided)"), + }, + handler: async ( + params: Record, + context?: TestServerContext, + ): Promise => { + if (!context) { + throw new Error("Server context not available"); + } + const server = context.server; + + const message = params.message as string; + const url = params.url as string; + const elicitationId = + (params.elicitationId as string) || + `url-elicitation-${Date.now()}-${Math.random()}`; + + // Send a URL-based elicitation request using the SDK's elicitInput method + try { + const elicitationParams: ElicitRequestURLParams = { + mode: "url", + message, + elicitationId, + url, + }; + + const result = await server.server.elicitInput(elicitationParams); + + return { + message: `URL elicitation response: ${JSON.stringify(result)}`, + }; + } catch (error) { + console.error( + "[collectUrlElicitation] Error sending/receiving URL elicitation request:", + error, + ); + throw error; + } + }, + }; +} + /** * Create a "sendNotification" tool that sends a notification message from the server */ @@ -1226,23 +1280,27 @@ export function createFlexibleTaskTool( ); // Send elicitation request with related-task metadata + // Note: We use extra.sendRequest() here because task handlers don't have + // direct access to the server instance with elicitInput(). However, we + // construct properly typed params for consistency with elicitInput() usage. try { // Convert Zod schema to JSON schema const jsonSchema = toJsonSchemaCompat( elicitationSchema, ) as ElicitRequestFormParams["requestedSchema"]; + const elicitationParams: ElicitRequestFormParams = { + message: `Please provide input for task ${task.taskId}`, + requestedSchema: jsonSchema, + _meta: { + [RELATED_TASK_META_KEY]: { + taskId: task.taskId, + }, + }, + }; await extra.sendRequest( { method: "elicitation/create", - params: { - message: `Please provide input for task ${task.taskId}`, - requestedSchema: jsonSchema, - _meta: { - [RELATED_TASK_META_KEY]: { - taskId: task.taskId, - }, - }, - }, + params: elicitationParams, }, ElicitResultSchema, ); From f044948c2f6c41aa497664f5212e364dd14454e7 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Sun, 25 Jan 2026 22:38:16 -0800 Subject: [PATCH 43/44] Cleaned up sample and roots server fixtures to use specific server methods (not sendRequest). --- shared/test/test-server-fixtures.ts | 45 ++++++++++------------------- 1 file changed, 15 insertions(+), 30 deletions(-) diff --git a/shared/test/test-server-fixtures.ts b/shared/test/test-server-fixtures.ts index fe46a811f..5800b403e 100644 --- a/shared/test/test-server-fixtures.ts +++ b/shared/test/test-server-fixtures.ts @@ -214,33 +214,23 @@ export function createCollectSampleTool(): ToolDefinition { const text = params.text as string; - // Send a sampling/createMessage request to the client - // The server.request() method takes a request object (with method) and result schema + // Send a sampling/createMessage request to the client using the SDK's createMessage method try { - const result = await server.server.request( - { - method: "sampling/createMessage", - params: { - messages: [ - { - role: "user" as const, - content: { - type: "text" as const, - text: text, - }, - }, - ], - maxTokens: 100, // Required parameter + const result = await server.server.createMessage({ + messages: [ + { + role: "user" as const, + content: { + type: "text" as const, + text: text, + }, }, - }, - CreateMessageResultSchema, - ); - - // Validate and return the result - const validatedResult = CreateMessageResultSchema.parse(result); + ], + maxTokens: 100, // Required parameter + }); return { - message: `Sampling response: ${JSON.stringify(validatedResult)}`, + message: `Sampling response: ${JSON.stringify(result)}`, }; } catch (error) { console.error( @@ -271,13 +261,8 @@ export function createListRootsTool(): ToolDefinition { const server = context.server; try { - // Call roots/list on the client - const result = await server.server.request( - { - method: "roots/list", - }, - ListRootsResultSchema, - ); + // Call roots/list on the client using the SDK's listRoots method + const result = await server.server.listRoots(); return { message: `Roots: ${JSON.stringify(result.roots, null, 2)}`, From 006e143ac3307c9e2c1093eb764b8244b1525130 Mon Sep 17 00:00:00 2001 From: Bob Dickinson Date: Mon, 26 Jan 2026 17:26:51 -0800 Subject: [PATCH 44/44] OAuth design docs --- docs/oauth-inspectorclient-design.md | 1361 ++++++++++++++++++++++++++ docs/task-support-design.md | 310 ------ docs/tui-web-client-feature-gaps.md | 85 +- 3 files changed, 1406 insertions(+), 350 deletions(-) create mode 100644 docs/oauth-inspectorclient-design.md delete mode 100644 docs/task-support-design.md diff --git a/docs/oauth-inspectorclient-design.md b/docs/oauth-inspectorclient-design.md new file mode 100644 index 000000000..bb48a6140 --- /dev/null +++ b/docs/oauth-inspectorclient-design.md @@ -0,0 +1,1361 @@ +# OAuth Support in InspectorClient - Design and Implementation Plan + +## Overview + +This document outlines the design and implementation plan for adding MCP OAuth 2.1 support to `InspectorClient`. The goal is to extract the general-purpose OAuth logic from the web client into the shared package and integrate it into `InspectorClient`, making OAuth available for CLI, TUI, and other InspectorClient consumers. + +**Important**: The web client OAuth code will remain in place and will not be modified to use the shared code at this time. Future migration options (using shared code directly, relying on InspectorClient, or a combination) should be considered in the design but not implemented. + +## Goals + +1. **Extract General-Purpose OAuth Logic**: Copy reusable OAuth components from `client/src/lib/` and `client/src/utils/` to `shared/auth/` (leaving originals in place) +2. **Abstract Platform Dependencies**: Create interfaces for storage, navigation, and redirect URLs to support both browser and Node.js environments +3. **Integrate with InspectorClient**: Add OAuth support to `InspectorClient` with both direct and indirect (401-triggered) OAuth flow initiation +4. **Support All Client Identification Modes**: Support static/preregistered clients, DCR (Dynamic Client Registration), and CIMD (Client ID Metadata Documents) +5. **Enable CLI/TUI OAuth**: Provide a foundation for OAuth support in CLI and TUI applications +6. **Event-Driven Architecture**: Design OAuth flow to be notification/callback driven for client-side integration + +## Architecture + +### Current State + +The web client's OAuth implementation consists of: + +- **OAuth Client Providers** (`client/src/lib/auth.ts`): + - `InspectorOAuthClientProvider`: Standard OAuth provider for automatic flow + - `DebugInspectorOAuthClientProvider`: Extended provider for guided/debug flow that saves server metadata and uses debug redirect URL +- **OAuth State Machine** (`client/src/lib/oauth-state-machine.ts`): Step-by-step OAuth flow that breaks OAuth into discrete, manually-progressible steps +- **OAuth Utilities** (`client/src/utils/oauthUtils.ts`): Pure functions for parsing callbacks and generating state +- **Scope Discovery** (`client/src/lib/auth.ts`): `discoverScopes()` function +- **Storage Functions** (`client/src/lib/auth.ts`): SessionStorage-based storage helpers +- **UI Components**: + - `AuthDebugger.tsx`: Core OAuth UI providing both "Guided" (step-by-step) and "Quick" (automatic) flows + - `OAuthFlowProgress.tsx`: Visual progress indicator showing OAuth step status + - OAuth callback handlers (web-specific, not moving) + +**Note on "Debug" Mode**: Despite the name, the Auth Debugger is a **core feature** of the web client, not an optional debug tool. It provides: + +- **Guided Flow**: Manual step-by-step progression with full state visibility +- **Quick Flow**: Automatic progression through all steps +- **State Inspection**: Full visibility into OAuth state (tokens, metadata, client info, etc.) +- **Error Debugging**: Clear error messages and validation at each step + +This guided/debug mode should be considered a core requirement for InspectorClient OAuth support, not a future enhancement. + +### Target Architecture + +``` +shared/auth/ +├── storage.ts # Storage abstraction using Zustand with persistence +├── providers.ts # Abstract OAuth client provider base class +├── state-machine.ts # OAuth state machine (general-purpose logic) +├── utils.ts # General-purpose utilities +├── types.ts # OAuth-related types +├── discovery.ts # Scope discovery utilities +├── store.ts # Zustand store for OAuth state (vanilla, no React deps) +└── __tests__/ # Tests + +shared/mcp/ +└── inspectorClient.ts # InspectorClient with OAuth integration + +shared/react/ +└── auth/ # Optional: Shareable React hooks for OAuth state + └── hooks.ts # React hooks (useOAuthStore, etc.) - requires React peer dep + # Note: UI components cannot be shared between TUI (Ink) and web (DOM) + # Each client must implement its own OAuth UI components + +client/src/lib/ # Web client OAuth code (unchanged) +├── auth.ts +└── oauth-state-machine.ts +``` + +## Abstraction Strategy + +### 1. Storage Abstraction with Zustand + +**Storage Strategy**: Use Zustand with persistent middleware for OAuth state management. Zustand's vanilla API allows non-React usage (CLI), while React bindings enable UI integration (TUI, web client). + +**Zustand Store Structure**: + +```typescript +interface OAuthStoreState { + // Server-scoped OAuth data + servers: Record< + string, + { + tokens?: OAuthTokens; + clientInformation?: OAuthClientInformation; + preregisteredClientInformation?: OAuthClientInformation; + codeVerifier?: string; + scope?: string; + serverMetadata?: OAuthMetadata; + } + >; + + // Actions + setTokens: (serverUrl: string, tokens: OAuthTokens) => void; + getTokens: (serverUrl: string) => OAuthTokens | undefined; + clearServer: (serverUrl: string) => void; + // ... other actions +} +``` + +**Storage Implementations**: + +- **Browser**: Zustand store with `persist` middleware using `sessionStorage` adapter +- **Node.js**: Zustand store with `persist` middleware using file-based storage adapter +- **Memory**: Zustand store without persistence (for testing) + +**Storage Location for InspectorClient**: + +- Default: `~/.mcp-inspector/oauth/state.json` (single Zustand store file) +- Configurable via `InspectorClientOptions.oauth?.storagePath` + +**Benefits of Zustand**: + +- Vanilla API works without React (CLI support) +- React hooks available for UI components (TUI, web client) +- Built-in persistence middleware +- Type-safe state management +- Easier to backup/restore (one file) +- Small bundle size + +### 2. Redirect URL Abstraction + +**Interface**: + +```typescript +interface RedirectUrlProvider { + /** + * Returns the redirect URL for normal mode + */ + getRedirectUrl(): string; + + /** + * Returns the redirect URL for debug mode + */ + getDebugRedirectUrl(): string; +} +``` + +**Implementations**: + +- `BrowserRedirectUrlProvider`: + - Normal: `window.location.origin + "/oauth/callback"` + - Debug: `window.location.origin + "/oauth/callback/debug"` +- `LocalServerRedirectUrlProvider`: + - Constructor takes `port: number` parameter + - Normal: `http://localhost:${port}/oauth/callback` + - Debug: `http://localhost:${port}/oauth/callback/debug` +- `ManualRedirectUrlProvider`: + - Constructor takes `baseUrl: string` parameter + - Normal: `${baseUrl}/oauth/callback` + - Debug: `${baseUrl}/oauth/callback/debug` + +**Design Rationale**: + +- Both redirect URLs are available from the provider +- Both URLs are registered with the OAuth server during client registration (like web client) +- This allows switching between normal and debug modes without re-registering the client +- The provider's mode determines which URL is used for the current flow, but both are registered for flexibility + +### 3. Navigation Abstraction + +**Interface**: + +```typescript +interface OAuthNavigation { + redirectToAuthorization(url: URL): void | Promise; +} +``` + +**Implementations**: + +- `BrowserNavigation`: Sets `window.location.href` (for web client) +- `ConsoleNavigation`: Prints URL to console and waits for callback (for CLI/TUI) +- `CallbackNavigation`: Calls a provided callback function (for InspectorClient) + +### 4. OAuth Client Provider Abstraction + +**Base Class**: + +```typescript +abstract class BaseOAuthClientProvider implements OAuthClientProvider { + constructor( + protected serverUrl: string, + protected storage: OAuthStorage, + protected redirectUrlProvider: RedirectUrlProvider, + protected navigation: OAuthNavigation, + protected mode: "normal" | "debug" = "normal", // OAuth flow mode + ) {} + + // Abstract methods implemented by subclasses + abstract get scope(): string | undefined; + + // Returns the redirect URL for the current mode + get redirectUrl(): string { + return this.mode === "debug" + ? this.redirectUrlProvider.getDebugRedirectUrl() + : this.redirectUrlProvider.getRedirectUrl(); + } + + // Returns both redirect URIs (registered with OAuth server for flexibility) + get redirect_uris(): string[] { + return [ + this.redirectUrlProvider.getRedirectUrl(), + this.redirectUrlProvider.getDebugRedirectUrl(), + ]; + } + + abstract get clientMetadata(): OAuthClientMetadata; + + // Shared implementation for SDK interface methods + async clientInformation(): Promise { ... } + saveClientInformation(clientInformation: OAuthClientInformation): void { ... } + async tokens(): Promise { ... } + saveTokens(tokens: OAuthTokens): void { ... } + saveCodeVerifier(codeVerifier: string): void { ... } + codeVerifier(): string { ... } + clear(): void { ... } + redirectToAuthorization(authorizationUrl: URL): void { ... } + state(): string | Promise { ... } +} +``` + +**Implementations**: + +- `BrowserOAuthClientProvider`: Extends base, uses browser storage and navigation (for web client) +- `NodeOAuthClientProvider`: Extends base, uses Zustand store and console navigation (for InspectorClient/CLI/TUI) + +**Mode Selection**: + +- **Normal mode** (`mode: "normal"`): Provider uses `/oauth/callback` for the current flow +- **Debug mode** (`mode: "debug"`): Provider uses `/oauth/callback/debug` for the current flow +- Both URLs are registered with the OAuth server during client registration (allows switching modes without re-registering) +- The mode is determined when creating the provider - specify normal or debug and it "just works" +- Both callback handlers are mounted (one at `/oauth/callback`, one at `/oauth/callback/debug`) +- The handler behavior matches the provider's mode (normal handler auto-completes, debug handler shows code) + +**Client Identification Modes**: + +- **Static/Preregistered**: Uses `clientId` and optional `clientSecret` from config +- **DCR (Dynamic Client Registration)**: Falls back to DCR if no static client provided +- **CIMD (Client ID Metadata Documents)**: Uses `clientMetadataUrl` from config to enable URL-based client IDs (SEP-991) + +## Module Structure + +### `shared/auth/store.ts` + +**Exports** (vanilla-only, no React dependencies): + +- `createOAuthStore()` - Factory function to create Zustand store +- `getOAuthStore()` - Vanilla API for accessing store (no React dependency) + +**Note**: React hooks (if needed) would be in `shared/react/auth/hooks.ts` as an optional export that requires React as a peer dependency. + +**Store Implementation**: + +- Uses Zustand's `create` function with `persist` middleware +- Browser: Persists to `sessionStorage` via Zustand's `persist` middleware +- Node.js: Persists to file via custom storage adapter for Zustand's `persist` middleware +- Memory: No persistence (for testing) + +**Storage Adapter for Node.js**: + +- Custom Zustand storage adapter that uses Node.js `fs/promises` +- Stores single JSON file: `~/.mcp-inspector/oauth/state.json` +- Handles file creation, reading, and writing atomically + +### `shared/auth/providers.ts` + +**Exports**: + +- `BaseOAuthClientProvider` abstract class +- `BrowserOAuthClientProvider` class (for web client, uses sessionStorage directly) +- `NodeOAuthClientProvider` class (for InspectorClient/CLI/TUI, uses Zustand store) + +**Key Methods**: + +- All SDK `OAuthClientProvider` interface methods +- Server-specific state management via Zustand store +- Token and client information management +- Support for `clientMetadataUrl` for CIMD mode + +### `shared/auth/state-machine.ts` + +**Exports**: + +- `OAuthStateMachine` class +- `oauthTransitions` object (state transition definitions) +- `StateMachineContext` interface +- `StateTransition` interface + +**Changes from Current Implementation**: + +- Accepts abstract `OAuthClientProvider` instead of `DebugInspectorOAuthClientProvider` +- Removes web-specific dependencies (sessionStorage, window.location) +- General-purpose state transition logic + +### `shared/auth/utils.ts` + +**Exports**: + +- `parseOAuthCallbackParams(location: string): CallbackParams` - Pure function +- `generateOAuthErrorDescription(params: CallbackParams): string` - Pure function +- `generateOAuthState(): string` - Uses `globalThis.crypto` or Node.js `crypto` module + +**Changes from Current Implementation**: + +- `generateOAuthState()` checks for `globalThis.crypto` first (browser), falls back to Node.js `crypto.randomBytes()` + +### `shared/auth/types.ts` + +**Exports**: + +- `CallbackParams` type (from `oauthUtils.ts`) +- Re-export SDK OAuth types as needed + +### `shared/auth/discovery.ts` + +**Exports**: + +- `discoverScopes(serverUrl: string, resourceMetadata?: OAuthProtectedResourceMetadata): Promise` + +**Note**: This is already general-purpose (uses only SDK functions), just needs to be moved. + +### `shared/react/auth/` (Optional - Shareable React Hooks Only) + +**What Can Be Shared**: + +- `hooks.ts` - React hooks for accessing OAuth state: + - `useOAuthStore()` - Hook to access Zustand OAuth store + - `useOAuthTokens()` - Hook to get current OAuth tokens + - `useOAuthState()` - Hook to get current OAuth state machine state + - These hooks are pure logic - no rendering, so they work with both Ink (TUI) and DOM (web) + +**What Cannot Be Shared**: + +- **UI Components** (`.tsx` files with visual rendering) cannot be shared because: + - TUI uses **Ink** (terminal rendering) with components like ``, ``, etc. + - Web client uses **DOM** (browser rendering) with components like `
`, ``, etc. + - They have completely different rendering targets, styling systems, and component APIs +- Each client must implement its own OAuth UI components: + - TUI: `tui/src/components/OAuthFlowProgress.tsx` (using Ink components) + - Web: `client/src/components/OAuthFlowProgress.tsx` (using DOM/HTML components) + +## OAuth Guided/Debug Mode (Core Feature) + +### What is the Auth Debugger? + +The "Auth Debugger" in the web client is **not** an optional debug tool - it's a **core feature** that provides two modes of OAuth flow: + +1. **Guided Flow** (Step-by-Step): + - Breaks OAuth into discrete, manually-progressible steps + - User clicks "Next" to advance through each step + - Full state visibility at each step (metadata, client info, tokens, etc.) + - Allows inspection and debugging of OAuth flow + - Steps: `metadata_discovery` → `client_registration` → `authorization_redirect` → `authorization_code` → `token_request` → `complete` + +2. **Quick Flow** (Automatic): + - Automatically progresses through all OAuth steps + - Still uses the state machine internally + - Redirects to authorization URL automatically + - Returns to callback with authorization code + +### How It Works + +**Components**: + +- **`OAuthStateMachine`**: Manages step-by-step progression through OAuth flow +- **`DebugInspectorOAuthClientProvider`**: Extended provider that: + - Uses debug redirect URL (`/oauth/callback/debug` instead of `/oauth/callback`) + - Saves server OAuth metadata to storage for UI display + - Provides `getServerMetadata()` and `saveServerMetadata()` methods +- **`AuthDebuggerState`**: Comprehensive state object tracking all OAuth data: + - Current step (`oauthStep`) + - OAuth metadata, client info, tokens + - Authorization URL, code, errors + - Resource metadata, validation errors + +**State Machine Steps** (Detailed): + +1. **`metadata_discovery`**: **RFC 8414 Discovery** - Client discovers authorization server metadata + - Always client-initiated (never uses server-provided metadata from MCP capabilities) + - Calls SDK `discoverOAuthProtectedResourceMetadata()` which makes HTTP request to `/.well-known/oauth-protected-resource` + - Calls SDK `discoverAuthorizationServerMetadata()` which makes HTTP request to `/.well-known/oauth-authorization-server` + - The SDK methods handle the actual HTTP requests to well-known endpoints + - Discovery Flow: + 1. Attempts to discover resource metadata from the MCP server URL + 2. If resource metadata contains `authorization_servers`, uses the first one; otherwise defaults to MCP server base URL + 3. Discovers OAuth authorization server metadata from the determined authorization server URL + 4. Uses discovered metadata for client registration and authorization +2. **`client_registration`**: **Registers client** (static, DCR, or CIMD) + - First tries preregistered/static client information (from config) + - Falls back to Dynamic Client Registration (DCR) if no static client available + - If `clientMetadataUrl` is provided, uses CIMD (Client ID Metadata Documents) mode + - Implementation pattern: + ```typescript + // Try Static client first, with DCR as fallback + let fullInformation = await context.provider.clientInformation(); + if (!fullInformation) { + fullInformation = await registerClient(context.serverUrl, { + metadata, + clientMetadata, + }); + context.provider.saveClientInformation(fullInformation); + } + ``` +3. **`authorization_redirect`**: Generates authorization URL with PKCE + - Calls SDK `startAuthorization()` which generates PKCE code challenge + - Builds authorization URL with all required parameters + - Saves code verifier for later token exchange +4. **`authorization_code`**: User provides authorization code (manual entry or callback) + - Validates authorization code input + - In guided mode, waits for user to enter code or receive via callback +5. **`token_request`**: Exchanges code for tokens + - Calls SDK `exchangeAuthorization()` with authorization code and code verifier + - Receives OAuth tokens (access_token, refresh_token, etc.) + - Saves tokens to storage +6. **`complete`**: Final state with tokens + - OAuth flow complete + - Tokens available for use in requests + +**Why It's Core**: + +- Provides transparency into OAuth flow (critical for debugging) +- Allows manual intervention at each step +- Shows full OAuth state (metadata, client info, tokens) +- Essential for troubleshooting OAuth issues +- Users expect this level of visibility in a developer tool + +**InspectorClient Integration**: + +- InspectorClient should support both automatic and guided modes +- Guided mode should expose state machine state via events/API +- CLI/TUI can use guided mode for step-by-step OAuth flow +- State machine should be part of initial implementation, not a future enhancement + +### OAuth Mode Implementation Details + +#### DCR (Dynamic Client Registration) Support + +**Behavior**: + +- ✅ Tries preregistered/static client info first (from Zustand store, set via config) +- ✅ Falls back to DCR via SDK `registerClient()` if no static client is found +- ✅ Client information is stored in Zustand store after registration + +**Storage**: + +- Preregistered clients: Stored in Zustand store as `preregisteredClientInformation` +- Dynamically registered clients: Stored in Zustand store as `clientInformation` +- The `clientInformation()` method checks preregistered first, then dynamic + +#### RFC 8414 Authorization Server Metadata Discovery + +**Behavior**: + +- ✅ Always initiates discovery client-side (never uses server-provided metadata from MCP capabilities) +- ✅ Discovers resource metadata from `/.well-known/oauth-protected-resource` via SDK `discoverOAuthProtectedResourceMetadata()` +- ✅ Discovers OAuth authorization server metadata from `/.well-known/oauth-authorization-server` via SDK `discoverAuthorizationServerMetadata()` +- ✅ No code path uses server-provided metadata from MCP server capabilities +- ✅ SDK methods handle the actual HTTP requests to well-known endpoints + +**Discovery Flow**: + +1. Attempts to discover resource metadata from the MCP server URL +2. If resource metadata contains `authorization_servers`, uses the first one; otherwise defaults to MCP server base URL +3. Discovers OAuth authorization server metadata from the determined authorization server URL +4. Uses discovered metadata for client registration and authorization + +**Note**: This is RFC 8414 discovery (client discovering server endpoints), not CIMD. CIMD is a separate concept (server discovering client information via URL-based client IDs). + +#### CIMD (Client ID Metadata Documents) Support + +**Status**: ✅ **Supported** (new in InspectorClient, not in current web client) + +**What CIMD Is**: + +- CIMD (Client ID Metadata Documents, SEP-991) is the DCR replacement introduced in the November 2025 MCP spec +- The client publishes its metadata at a URL (e.g., `https://inspector.app/.well-known/oauth-client-metadata`) +- That URL becomes the `client_id` (instead of a random string from DCR) +- The authorization server fetches that URL to discover client information (name, redirect_uris, etc.) +- This is "reverse discovery" - the server discovers the client, not the client discovering the server + +**How InspectorClient Supports CIMD**: + +- User provides `clientMetadataUrl` in OAuth config +- `NodeOAuthClientProvider` sets `clientMetadataUrl` in `clientMetadata` +- SDK checks for CIMD support and uses URL-based client ID if supported +- Falls back to DCR if authorization server doesn't support CIMD + +**What's Required for CIMD**: + +1. Publish client metadata at a publicly accessible URL +2. Set `clientMetadataUrl` in OAuth config +3. The authorization server must support `client_id_metadata_document_supported: true` + +### OAuth Flow Descriptions + +#### Automatic Flow (Quick Mode) + +1. **Configuration**: User provides OAuth config (clientId, clientSecret, scope, clientMetadataUrl) via `InspectorClientOptions` or `setOAuthConfig()` +2. **Storage**: Config saved to Zustand store as `preregisteredClientInformation` (if static client provided) +3. **Connection/Request**: On connect or request, if 401 error occurs, automatically initiates OAuth flow +4. **SDK Handles**: + - Authorization server metadata discovery (RFC 8414 - always client-initiated) + - Client registration (static, DCR, or CIMD based on config) + - Authorization redirect (generates PKCE challenge, builds authorization URL) +5. **Navigation**: Authorization URL dispatched via `oauthAuthorizationRequired` event +6. **User Action**: User navigates to authorization URL (via callback handler, browser open, or manual navigation) +7. **Callback**: Authorization server redirects to callback URL with authorization code +8. **Processing**: User provides authorization code via `completeOAuthFlow()` +9. **Token Exchange**: SDK exchanges code for tokens (using stored code verifier) +10. **Storage**: Tokens saved to Zustand store +11. **Auto-Retry**: Original request automatically retried with new tokens + +#### Guided Flow (Step-by-Step Mode) + +1. **Initiation**: User calls `authenticate("debug")` to begin guided flow +2. **State Machine**: `OAuthStateMachine` executes steps manually +3. **Step Control**: Each step can be viewed and manually progressed via `proceedOAuthStep()` +4. **State Visibility**: Full OAuth state available via `getOAuthState()` and `oauthStepChange` events +5. **Events**: `oauthStepChange` event dispatched on each step transition with current state + - Event detail includes: `step`, `previousStep`, and `state` (partial state update) + - UX layer can listen to update UI, enable/disable buttons, show step-specific information +6. **Authorization**: Authorization URL generated and dispatched via `oauthAuthorizationRequired` event +7. **Code Entry**: Authorization code can be entered manually or received via callback +8. **Completion**: `oauthComplete` event dispatched, full state visible, tokens stored in Zustand store + +## InspectorClient Integration + +### New Options + +```typescript +export interface InspectorClientOptions { + // ... existing options ... + + /** + * OAuth configuration + */ + oauth?: { + /** + * Preregistered client ID (optional, will use DCR if not provided) + * If clientMetadataUrl is provided, this is ignored (CIMD mode) + */ + clientId?: string; + + /** + * Preregistered client secret (optional, only if client requires secret) + * If clientMetadataUrl is provided, this is ignored (CIMD mode) + */ + clientSecret?: string; + + /** + * Client metadata URL for CIMD (Client ID Metadata Documents) mode + * If provided, enables URL-based client IDs (SEP-991) + * The URL becomes the client_id, and the authorization server fetches it to discover client metadata + */ + clientMetadataUrl?: string; + + /** + * OAuth scope (optional, will be discovered if not provided) + */ + scope?: string; + + /** + * Redirect URL for OAuth callback (required for OAuth flow) + * For CLI/TUI, this should be a local server URL or manual callback URL + */ + redirectUrl?: string; + + /** + * Storage path for OAuth data (default: ~/.mcp-inspector/oauth/) + */ + storagePath?: string; + }; +} +``` + +### New Methods + +```typescript +class InspectorClient { + // OAuth configuration + setOAuthConfig(config: { + clientId?: string; + clientSecret?: string; + clientMetadataUrl?: string; // For CIMD mode + scope?: string; + redirectUrl?: string; + }): void; + + // OAuth flow initiation (Direct) + /** + * Directly initiates OAuth flow (user-initiated authentication) + * @param mode - "normal" for automatic flow (default), "debug" for guided/step-by-step flow + * Returns the authorization URL that the user should navigate to + * Dispatches 'oauthAuthorizationRequired' event + * If mode is "debug", also dispatches 'oauthStepChange' events as flow progresses + */ + async authenticate(mode?: "normal" | "debug"): Promise; + + // OAuth flow initiation (Indirect - 401 triggered) + /** + * Initiates OAuth flow when a 401 error is encountered (indirect/automatic) + * Uses the OAuth provider configured for this client (normal mode by default) + * Returns the authorization URL that the user should navigate to + * Dispatches 'oauthAuthorizationRequired' event + */ + async initiateOAuthFlow(): Promise; + + /** + * Completes OAuth flow with authorization code + * @param authorizationCode - Authorization code from OAuth callback + * Dispatches 'oauthComplete' event on success + * Dispatches 'oauthError' event on failure + */ + async completeOAuthFlow(authorizationCode: string): Promise; + + // OAuth state management + /** + * Gets current OAuth tokens (if authorized) + */ + getOAuthTokens(): OAuthTokens | undefined; + + /** + * Clears OAuth tokens and client information + */ + clearOAuthTokens(): void; + + /** + * Checks if client is currently OAuth authorized + */ + isOAuthAuthorized(): boolean; + + /** + * Gets OAuth authorization URL (for manual flow) + * @param mode - "normal" for automatic flow (default), "debug" for guided/step-by-step flow + * Uses the OAuth provider configured for the specified mode + */ + async getOAuthAuthorizationUrl(mode?: "normal" | "debug"): Promise; + + // Guided/debug mode state management + /** + * Get current OAuth state machine state (for guided/debug mode) + * Returns undefined if not in guided mode + */ + getOAuthState(): AuthDebuggerState | undefined; + + /** + * Get current OAuth step (for guided/debug mode) + * Returns undefined if not in guided mode + */ + getOAuthStep(): OAuthStep | undefined; + + /** + * Manually progress to next step in guided/debug OAuth flow + * Only works when in guided mode + * Dispatches 'oauthStepChange' event on step transition + */ + async proceedOAuthStep(): Promise; +} +``` + +### OAuth Flow Initiation + +**Two Modes of Initiation**: + +1. **Direct Initiation** (User-Initiated): + - User calls `client.authenticate()` or `client.authenticate("debug")` explicitly + - Returns authorization URL + - Dispatches `oauthAuthorizationRequired` event + - If mode is "debug", also dispatches `oauthStepChange` events as flow progresses + - Client-side (CLI/TUI) listens for events and handles navigation + +2. **Indirect Initiation** (401-Triggered): + - Server returns 401 error during connection or request + - InspectorClient automatically calls `initiateOAuthFlow()` + - Returns authorization URL + - Dispatches `oauthAuthorizationRequired` event + - Client-side listens for event and handles navigation + - After OAuth completes, original request is automatically retried + +**Event-Driven Architecture**: + +```typescript +// InspectorClient dispatches events for automatic flow +this.dispatchTypedEvent("oauthAuthorizationRequired", { + url: authorizationUrl, + mode: "direct" | "indirect", + originalError?: Error // Present if triggered by 401 error +}); + +this.dispatchTypedEvent("oauthComplete", { tokens }); +this.dispatchTypedEvent("oauthError", { error }); + +// InspectorClient dispatches events for guided/debug flow +this.dispatchTypedEvent("oauthStepChange", { + step: OAuthStep, + previousStep?: OAuthStep, + state: Partial +}); + +// Client-side (CLI/TUI) listens for events +client.addEventListener("oauthAuthorizationRequired", (event) => { + const { url, mode } = event.detail; + // Handle navigation (print URL, open browser, etc.) + // Wait for user to provide authorization code + // Call client.completeOAuthFlow(code) +}); + +// For guided mode, listen for step changes +client.addEventListener("oauthStepChange", (event) => { + const { step, state } = event.detail; + // Update UI to show current step and state + // Enable/disable "Continue" button based on step +}); +``` + +**Default Behavior**: + +- If no listeners are registered for `oauthAuthorizationRequired`, InspectorClient will print the URL to console (for CLI/TUI compatibility) +- UX layers should register event listeners to provide custom behavior + +**401 Error Handling**: + +```typescript +// In InspectorClient.connect() and request methods +try { + await this.client.request(...); +} catch (error) { + if (is401Error(error) && this.oauthConfig) { + // Indirect initiation - dispatch event, don't throw + const authUrl = await this.initiateOAuthFlow(); + this.dispatchTypedEvent("oauthAuthorizationRequired", { + url: authUrl, + mode: "indirect", + originalError: error + }); + // Note: Original request will be retried after OAuth completes + // This is handled by the OAuth completion handler + } else { + throw error; + } +} +``` + +### Token Injection + +**Integration Point**: For HTTP-based transports (SSE, streamable-http), automatically inject OAuth tokens into request headers: + +```typescript +// In transport creation or request handling +const tokens = await this.oauthProvider?.tokens(); +if (tokens?.access_token) { + headers["Authorization"] = `Bearer ${tokens.access_token}`; +} +``` + +## Implementation Plan + +### Phase 1: Extract and Abstract OAuth Components + +**Goal**: Copy general-purpose OAuth code to shared package with abstractions (leaving web client code unchanged) + +1. **Create Zustand Store** (`shared/auth/store.ts`) + - Install Zustand dependency (with persist middleware support) + - Create `createOAuthStore()` factory function + - Implement browser storage adapter (sessionStorage) for Zustand persist + - Implement file storage adapter (Node.js fs) for Zustand persist + - Export vanilla API (`getOAuthStore()`) only (no React dependencies) + - React hooks (if needed) would be in separate `shared/react/auth/hooks.ts` file + - Add `getServerSpecificKey()` helper + +2. **Create Redirect URL Abstraction** (`shared/auth/providers.ts` - part 1) + - Define `RedirectUrlProvider` interface with `getRedirectUrl()` and `getDebugRedirectUrl()` methods + - Implement `BrowserRedirectUrlProvider` (returns normal and debug URLs based on `window.location.origin`) + - Implement `LocalServerRedirectUrlProvider` (constructor takes `port`, returns normal and debug URLs) + - Implement `ManualRedirectUrlProvider` (constructor takes `baseUrl`, returns normal and debug URLs) + - **Key**: Both URLs are available, both are registered with OAuth server, mode determines which is used for current flow + +3. **Create Navigation Abstraction** (`shared/auth/providers.ts` - part 2) + - Define `OAuthNavigation` interface + - Implement `BrowserNavigation` + - Implement `ConsoleNavigation` + - Implement `CallbackNavigation` + +4. **Create Base OAuth Provider** (`shared/auth/providers.ts` - part 3) + - Create `BaseOAuthClientProvider` abstract class + - Implement shared SDK interface methods + - Move storage, redirect URL, and navigation logic to base class + - Add support for `clientMetadataUrl` (CIMD mode) + +5. **Create Provider Implementations** (`shared/auth/providers.ts` - part 4) + - Create `BrowserOAuthClientProvider` (extends base, uses sessionStorage directly - for web client reference) + - Create `NodeOAuthClientProvider` (extends base, uses Zustand store - for InspectorClient/CLI/TUI) + - Support all three client identification modes: static, DCR, CIMD + +6. **Copy OAuth Utilities** (`shared/auth/utils.ts`) + - Copy `parseOAuthCallbackParams()` from `client/src/utils/oauthUtils.ts` + - Copy `generateOAuthErrorDescription()` from `client/src/utils/oauthUtils.ts` + - Adapt `generateOAuthState()` to support both browser and Node.js + +7. **Copy OAuth State Machine** (`shared/auth/state-machine.ts`) + - Copy `OAuthStateMachine` class from `client/src/lib/oauth-state-machine.ts` + - Copy `oauthTransitions` object + - Update to use abstract `OAuthClientProvider` instead of `DebugInspectorOAuthClientProvider` + +8. **Copy Scope Discovery** (`shared/auth/discovery.ts`) + - Copy `discoverScopes()` from `client/src/lib/auth.ts` + +9. **Create Types Module** (`shared/auth/types.ts`) + - Copy `CallbackParams` type from `client/src/utils/oauthUtils.ts` + - Re-export SDK OAuth types as needed + +### Phase 2: (Skipped - Web Client Unchanged) + +**Note**: Web client OAuth code remains in place and is not modified at this time. Future migration options: + +- Option A: Web client uses shared auth code directly +- Option B: Web client relies on InspectorClient for OAuth +- Option C: Hybrid approach (some components use shared code, others use InspectorClient) + +These options should be considered in the design but not implemented now. + +### Phase 3: Integrate OAuth into InspectorClient + +**Goal**: Add OAuth support to InspectorClient with both direct and indirect initiation + +1. **Add OAuth Options to InspectorClientOptions** + - Add `oauth` configuration option with support for `clientMetadataUrl` (CIMD) + - Define OAuth configuration interface + - Support all three client identification modes + +2. **Add OAuth Provider to InspectorClient** + - Store OAuth config + - Create `NodeOAuthClientProvider` instances on-demand based on mode (lazy initialization) + - Normal mode provider created by default (for automatic flows) + - Debug mode provider created when `authenticate("debug")` is called + - Initialize Zustand store for OAuth state + - **Important**: Both redirect URLs are registered with OAuth server (allows switching modes without re-registering) + - Both callback handlers are mounted (normal at `/oauth/callback`, debug at `/oauth/callback/debug`) + - The provider's mode determines which URL is used for the current flow + +3. **Implement OAuth Methods** + - Implement `setOAuthConfig()` (supports clientMetadataUrl for CIMD) + - Implement `authenticate()` (direct initiation, uses default normal-mode provider) + - Implement `initiateOAuthFlow()` (indirect/401-triggered initiation, uses default normal-mode provider) + - Implement `completeOAuthFlow()` + - Implement `getOAuthTokens()` + - Implement `clearOAuthTokens()` + - Implement `isOAuthAuthorized()` + - Implement `getOAuthAuthorizationUrl(mode?)` (mode defaults to "normal") + - Implement guided/debug mode state management methods: + - `getOAuthState()` - Get current OAuth state machine state (returns undefined if not in guided mode) + - `getOAuthStep()` - Get current OAuth step (returns undefined if not in guided mode) + - `proceedOAuthStep()` - Manually progress to next step (only works in guided mode, dispatches `oauthStepChange` event) + - **Note**: Guided/debug mode is initiated via `authenticate("debug")`, which creates a provider with `mode="debug"` and initiates the flow + - **Note**: When creating `NodeOAuthClientProvider`, pass the `mode` parameter. Both redirect URLs are registered, but the provider uses the URL matching its mode for the current flow. + +4. **Add 401 Error Detection** + - Create `is401Error()` helper method + - Detect 401 errors in transport layer (SSE, streamable-http) + - Detect 401 errors in request methods + - Detect 401 errors in `connect()` method + +5. **Add Indirect OAuth Flow Initiation (401-Triggered)** + - In `connect()`, catch 401 errors and call `initiateOAuthFlow()` + - In request methods, catch 401 errors and call `initiateOAuthFlow()` + - Dispatch `oauthAuthorizationRequired` event with authorization URL and mode="indirect" + - Store original request/error for retry after OAuth completes + +6. **Add Direct OAuth Flow Initiation (User-Initiated)** + - Implement `authenticate(mode?)` method for explicit OAuth initiation + - If mode is "debug", create provider with debug mode and initiate guided flow + - Dispatch `oauthAuthorizationRequired` event with authorization URL and mode="direct" + - If mode is "debug", also dispatch `oauthStepChange` events as state machine progresses + +7. **Add Token Injection** + - For HTTP-based transports, inject OAuth tokens into request headers + - Update transport creation to include OAuth tokens from Zustand store + - Refresh tokens if expired (future enhancement) + +8. **Add OAuth Events** + - Add `oauthAuthorizationRequired` event (dispatches authorization URL, mode, optional originalError) + - Add `oauthComplete` event (dispatches tokens) + - Add `oauthError` event (dispatches error) + - Add `oauthStepChange` event (dispatches step, previousStep, state) - for guided/debug mode + - All events are event-driven for client-side integration + - If no listeners registered for `oauthAuthorizationRequired`, default to printing URL to console + +### Phase 4: Testing + +**Goal**: Comprehensive testing of OAuth support + +1. **Unit Tests for Shared OAuth Components** + - Test storage adapters (Browser, Memory, File) + - Test redirect URL providers + - Test navigation handlers + - Test OAuth utilities + - Test state machine transitions + - Test scope discovery + +2. **Integration Tests for InspectorClient OAuth** + - Test OAuth configuration + - Test 401 error detection and OAuth flow initiation + - Test token injection in HTTP transports + - Test OAuth flow completion + - Test token storage and retrieval + - Test OAuth error handling + +3. **End-to-End Tests with OAuth Test Server** + - Test full OAuth flow with test server (see "OAuth Test Server Infrastructure" below) + - Test static/preregistered client mode + - Test DCR (Dynamic Client Registration) mode + - Test CIMD (Client ID Metadata Documents) mode + - Test scope discovery + - Test token refresh (if supported) + - Test OAuth cleanup + - Test 401 error handling and automatic retry + +4. **Web Client Regression Tests** + - Verify all existing OAuth tests still pass + - Test normal OAuth flow + - Test debug OAuth flow + - Test OAuth callback handling + +## OAuth Test Server Infrastructure + +### Overview + +OAuth testing requires a full OAuth 2.1 authorization server that can: + +- Return 401 errors on MCP requests (to trigger OAuth flow initiation) +- Serve OAuth metadata endpoints (RFC 8414 discovery) +- Handle all three client identification modes (static, DCR, CIMD) +- Support authorization and token exchange flows +- Verify Bearer tokens on protected MCP endpoints + +**Decision**: Use **better-auth** (or similar third-party OAuth library) for the test server rather than implementing OAuth from scratch. This provides: + +- Faster implementation +- Production-like OAuth behavior +- Better security coverage +- Reduced maintenance burden + +### Integration with Existing Test Infrastructure + +The OAuth test server will integrate with the existing `composable-test-server.ts` infrastructure: + +1. **Extend `ServerConfig` Interface** (`shared/test/composable-test-server.ts`): + + ```typescript + export interface ServerConfig { + // ... existing config ... + oauth?: { + /** + * Whether OAuth is enabled for this test server + */ + enabled: boolean; + + /** + * OAuth authorization server issuer URL + * Used for metadata endpoints and token issuance + */ + issuerUrl: URL; + + /** + * List of scopes supported by this authorization server + */ + scopesSupported?: string[]; + + /** + * If true, MCP endpoints require valid Bearer token + * Returns 401 Unauthorized if token is missing or invalid + */ + requireAuth?: boolean; + + /** + * Static/preregistered clients for testing + * These clients are pre-configured and don't require DCR + */ + staticClients?: Array<{ + clientId: string; + clientSecret?: string; + redirectUris?: string[]; + }>; + + /** + * Whether to support Dynamic Client Registration (DCR) + * If true, exposes /register endpoint for client registration + */ + supportDCR?: boolean; + + /** + * Whether to support CIMD (Client ID Metadata Documents) + * If true, server will fetch client metadata from clientMetadataUrl + */ + supportCIMD?: boolean; + + /** + * Token expiration time in seconds (default: 3600) + */ + tokenExpirationSeconds?: number; + + /** + * Whether to support refresh tokens (default: true) + */ + supportRefreshTokens?: boolean; + }; + } + ``` + +2. **Extend `TestServerHttp`** (`shared/test/test-server-http.ts`): + - Install better-auth OAuth router on Express app (before MCP routes) + - Add Bearer token verification middleware on `/mcp` endpoint + - Return 401 if `requireAuth: true` and no valid token present + - Serve OAuth metadata endpoints: + - `/.well-known/oauth-authorization-server` (RFC 8414) + - `/.well-known/oauth-protected-resource` (RFC 8414) + - Handle client registration endpoint (`/register`) if DCR enabled + - Handle authorization endpoint (`/authorize`) - see "Authorization Endpoint" below + - Handle token endpoint (`/token`) + - Handle token revocation endpoint (`/revoke`) if supported + + **Authorization Endpoint Implementation**: + - better-auth provides the authorization endpoint (`/oauth/authorize` or similar) + - For automated testing, create a **test authorization page** that: + - Accepts authorization requests (client_id, redirect_uri, scope, state, code_challenge) + - Automatically approves the request (no user interaction required) + - Redirects to `redirect_uri` with authorization code and state + - This allows tests to programmatically complete the OAuth flow without browser automation + - For true E2E tests requiring user interaction, better-auth's built-in UI can be used + +3. **Create OAuth Test Fixtures** (`shared/test/test-server-fixtures.ts`): + + ```typescript + /** + * Creates a test server configuration with OAuth enabled + */ + export function createOAuthTestServerConfig(options: { + requireAuth?: boolean; + scopesSupported?: string[]; + staticClients?: Array<{ clientId: string; clientSecret?: string }>; + supportDCR?: boolean; + supportCIMD?: boolean; + }): ServerConfig; + + /** + * Creates OAuth configuration for InspectorClient tests + */ + export function createOAuthClientConfig(options: { + mode: "static" | "dcr" | "cimd"; + clientId?: string; + clientSecret?: string; + clientMetadataUrl?: string; + redirectUrl: string; + }): InspectorClientOptions["oauth"]; + + /** + * Helper function to programmatically complete OAuth authorization + * Makes HTTP GET request to authorization URL and extracts authorization code + * @param authorizationUrl - The authorization URL from oauthAuthorizationRequired event + * @returns Authorization code extracted from redirect URL + */ + export async function completeOAuthAuthorization( + authorizationUrl: URL, + ): Promise; + ``` + +### Authorization Endpoint and Test Flow + +**Authorization Endpoint**: +The test server will provide a functioning OAuth authorization endpoint (via better-auth) that: + +1. **Accepts Authorization Requests**: The endpoint receives authorization requests with: + - `client_id`: The OAuth client identifier + - `redirect_uri`: Where to redirect after approval + - `scope`: Requested OAuth scopes + - `state`: CSRF protection state parameter + - `code_challenge`: PKCE code challenge + - `response_type`: Always "code" for authorization code flow + +2. **Test Authorization Page**: For automated testing, the test server will provide a simple authorization page that: + - Automatically approves all authorization requests (no user interaction) + - Generates an authorization code + - Redirects to `redirect_uri` with the code and state parameter + - This allows tests to programmatically complete OAuth without browser automation + +3. **Programmatic Authorization Helper**: Tests can use a helper function to: + - Extract authorization URL from `oauthAuthorizationRequired` event + - Make HTTP GET request to authorization URL + - Parse redirect response to extract authorization code + - Call `client.completeOAuthFlow(authorizationCode)` to complete the flow + +**Example Test Flow**: + +```typescript +// 1. Configure test server with OAuth enabled +const server = new TestServerHttp({ + ...getDefaultServerConfig(), + oauth: { + enabled: true, + requireAuth: true, + staticClients: [{ clientId: "test-client", clientSecret: "test-secret" }], + }, +}); +await server.start(); + +// 2. Configure InspectorClient with OAuth +const client = new InspectorClient({ + serverUrl: server.url, + oauth: { + clientId: "test-client", + clientSecret: "test-secret", + redirectUrl: "http://localhost:3000/oauth/callback", + }, +}); + +// 3. Listen for OAuth authorization required event +let authUrl: URL | null = null; +client.addEventListener("oauthAuthorizationRequired", (event) => { + authUrl = event.detail.url; +}); + +// 4. Make MCP request (triggers 401, then OAuth flow) +try { + await client.listTools(); +} catch (error) { + // Expected: 401 error triggers OAuth flow +} + +// 5. Programmatically complete authorization +if (authUrl) { + // Make GET request to authorization URL (auto-approves in test server) + const response = await fetch(authUrl.toString(), { redirect: "manual" }); + const redirectUrl = response.headers.get("location"); + + // Extract authorization code from redirect URL + const redirectUrlObj = new URL(redirectUrl!); + const code = redirectUrlObj.searchParams.get("code"); + + // Complete OAuth flow + await client.completeOAuthFlow(code!); + + // 6. Retry original request (should succeed with token) + const tools = await client.listTools(); + expect(tools).toBeDefined(); +} +``` + +### Test Scenarios + +**Static Client Mode**: + +- Configure test server with `staticClients` +- Configure InspectorClient with matching `clientId`/`clientSecret` +- Test full OAuth flow without DCR +- Verify authorization endpoint auto-approves and redirects with code + +**DCR Mode**: + +- Configure test server with `supportDCR: true` +- Configure InspectorClient without `clientId` (triggers DCR) +- Test client registration, then full OAuth flow +- Verify DCR endpoint registers client, then authorization flow proceeds + +**CIMD Mode**: + +- Configure test server with `supportCIMD: true` +- Configure InspectorClient with `clientMetadataUrl` +- Test server fetches client metadata from URL +- Test full OAuth flow with URL-based client ID + +**401 Error Handling**: + +- Configure test server with `requireAuth: true` +- Make MCP request without token → expect 401 +- Verify `oauthAuthorizationRequired` event dispatched +- Programmatically complete OAuth flow (auto-approve authorization) +- Verify original request automatically retried with token + +**Token Verification**: + +- Configure test server with `requireAuth: true` +- Make MCP request with valid Bearer token → expect success +- Make MCP request with invalid/expired token → expect 401 + +### Implementation Steps + +1. **Install better-auth dependency** (or chosen OAuth library) + - Add to `shared/package.json` as dev dependency + +2. **Create OAuth test server wrapper** (`shared/test/oauth-test-server.ts`) + - Wrap better-auth configuration + - Integrate with Express app in `TestServerHttp` + - Handle static clients, DCR, CIMD modes + - Create test authorization page that auto-approves requests + - Provide helper function to programmatically extract authorization code from redirect + +3. **Extend `ServerConfig` interface** + - Add `oauth` configuration option + - Update `createMcpServer()` to handle OAuth config + +4. **Extend `TestServerHttp`** + - Install OAuth router before MCP routes + - Add Bearer token middleware + - Return 401 when `requireAuth: true` and token invalid + +5. **Create test fixtures** + - `createOAuthTestServerConfig()` + - `createOAuthClientConfig()` + - Helper functions for common OAuth test scenarios + +6. **Write integration tests** + - Test each client identification mode + - Test 401 error handling + - Test token verification + - Test full OAuth flow end-to-end + +## Storage Strategy + +### InspectorClient Storage (Node.js) - Zustand with File Persistence + +**Location**: `~/.mcp-inspector/oauth/state.json` (single Zustand store file) + +**Storage Format**: + +```json +{ + "state": { + "servers": { + "https://example.com/mcp": { + "tokens": { "access_token": "...", "refresh_token": "..." }, + "clientInformation": { "client_id": "...", ... }, + "preregisteredClientInformation": { "client_id": "...", ... }, + "codeVerifier": "...", + "scope": "...", + "serverMetadata": { ... } + } + } + }, + "version": 0 +} +``` + +**Benefits**: + +- Single file for all OAuth state across all servers +- Zustand handles serialization/deserialization automatically +- Atomic writes via Zustand's persist middleware +- Type-safe state management +- Easier to backup/restore (one file) + +**Security Considerations**: + +- File contains sensitive data (tokens, secrets) +- Use restrictive file permissions (600) for state.json +- Consider encryption for production use (future enhancement) + +### Web Client Storage (Browser) + +**Location**: Browser `sessionStorage` (unchanged - web client code not modified) + +**Key Format**: `[${serverUrl}] ${baseKey}` (unchanged) + +## Navigation Strategy + +### InspectorClient Navigation + +**Default Behavior**: If no event listener is registered for `oauthAuthorizationRequired`, InspectorClient prints the URL to console + +**UX Layer Options**: + +1. **Console Output**: Register event listener to print URL, wait for user to paste callback URL or authorization code +2. **Browser Open**: Register event listener to open URL in default browser (if available) +3. **Custom Navigation**: Register event listener to handle redirect in any custom way + +**Example Flow**: + +``` +1. InspectorClient detects 401 error +2. Initiates OAuth flow +3. Dispatches 'oauthAuthorizationRequired' event +4. If no listener registered, prints: "Please navigate to: https://auth.example.com/authorize?..." +5. UX layer listens for event and handles navigation (print, open browser, etc.) +6. Waits for user to provide authorization code or callback URL +7. User calls client.completeOAuthFlow(code) +8. Dispatches 'oauthComplete' event +9. Retries original request +``` + +## Error Handling + +### OAuth Flow Errors + +- **Discovery Errors**: Log and continue (fallback to server URL) +- **Registration Errors**: Log and throw (user must provide static client) +- **Authorization Errors**: Dispatch `oauthError` event, throw error +- **Token Exchange Errors**: Dispatch `oauthError` event, throw error + +### 401 Error Handling + +- **Automatic Retry**: After successful OAuth, automatically retry failed request +- **Manual Retry**: User can manually retry after OAuth completes +- **Event-Based**: Dispatch events for UI to handle OAuth flow + +## Migration Notes + +### Web Client Migration (Future Consideration) + +**Current State**: Web client OAuth code remains unchanged and in place. + +**Future Migration Options** (not implemented now, but design should support): + +1. **Option A: Web Client Uses Shared Auth Code Directly** + - Web client imports from `shared/auth/` + - Uses `BrowserOAuthClientProvider` from shared + - Uses Zustand store with sessionStorage adapter + - Minimal changes to web client code + +2. **Option B: Web Client Relies on InspectorClient for OAuth** + - Web client creates `InspectorClient` instance + - Uses InspectorClient's OAuth methods and events + - InspectorClient handles all OAuth logic + - Web client UI listens to InspectorClient events + +3. **Option C: Hybrid Approach** + - Some components use shared auth code directly (e.g., utilities, state machine) + - Other components use InspectorClient (e.g., OAuth flow initiation) + - Flexible migration path + +**Design Considerations**: + +- Shared auth code should be usable independently (not require InspectorClient) +- InspectorClient should be usable independently (not require web client) +- React hooks in `shared/react/auth/hooks.ts` can be shared (pure logic, no rendering) +- React UI components cannot be shared (TUI uses Ink, web uses DOM) - each client implements its own + +### Breaking Changes + +- **None Expected**: All changes are additive (new shared code, new InspectorClient features) +- **Web Client**: Remains completely unchanged +- **API Compatibility**: InspectorClient API is additive only + +## Future Enhancements + +1. **Token Refresh**: Automatic token refresh when access token expires +2. **Encrypted Storage**: Encrypt sensitive OAuth data in Zustand store +3. **Multiple OAuth Providers**: Support multiple OAuth configurations per InspectorClient +4. **Web Client Migration**: Consider migrating web client to use shared auth code or InspectorClient + +## References + +- [OAuth Implementation Documentation](./oauth-implementation.md) - Current web client OAuth implementation details +- [MCP SDK OAuth APIs](https://github.com/modelcontextprotocol/typescript-sdk) - SDK OAuth client and server APIs +- [OAuth 2.1 Specification](https://datatracker.ietf.org/doc/html/draft-ietf-oauth-v2-1) - OAuth 2.1 protocol specification +- [RFC 8414](https://datatracker.ietf.org/doc/html/rfc8414) - OAuth 2.0 Authorization Server Metadata +- [Zustand Documentation](https://github.com/pmndrs/zustand) - Zustand state management library +- [Zustand Persist Middleware](https://github.com/pmndrs/zustand/blob/main/docs/integrations/persisting-store-data.md) - Zustand persistence middleware +- [SEP-991: Client ID Metadata Documents](https://modelcontextprotocol.io/specification/security/oauth/#client-id-metadata-documents) - CIMD specification diff --git a/docs/task-support-design.md b/docs/task-support-design.md deleted file mode 100644 index ffcb32d9f..000000000 --- a/docs/task-support-design.md +++ /dev/null @@ -1,310 +0,0 @@ -# Task Support Design - -## Overview - -Tasks (SEP-1686) were introduced in the MCP November 2025 release (version 2025-11-25) to move MCP beyond simple "wait-and-response" tool calls. They provide a standardized "call-now, fetch-later" pattern for long-running operations like document analysis, database indexing, or complex agentic reasoning. - -This document describes the task support implementation in `InspectorClient`. - -### Scope: Tools First - -**Current Implementation**: Task support is implemented for **tools** (`tools/call`), leveraging the SDK's first-class support via `client.experimental.tasks.callToolStream()`. - -**Future Support**: At the protocol level, tasks could be supported for resources (`resources/read`) and prompts (`prompts/get`), but the SDK does not currently provide built-in support for these operations. The design is structured to allow adding support for these operations later if/when the SDK adds first-class support. - -**Design Principle**: InspectorClient's task support wraps SDK methods rather than implementing protocol-level task handling directly. This ensures we leverage SDK features and maintain compatibility with SDK updates. - -## Architecture - -### SDK Integration - -InspectorClient wraps the MCP TypeScript SDK's `client.experimental.tasks` API: - -- **Streaming API**: `callToolStream()` uses the SDK's async generator pattern to receive real-time task updates -- **Task Management**: All task operations (`getTask`, `getTaskResult`, `cancelTask`, `listTasks`) delegate to SDK methods -- **State Management**: InspectorClient maintains a local cache of active tasks for UI display and event dispatching, but authoritative state always comes from the server via the SDK - -### Event-Based API - -InspectorClient uses an event-driven architecture for task lifecycle notifications: - -- **Task Lifecycle Events**: `taskCreated`, `taskStatusChange`, `taskCompleted`, `taskFailed`, `taskCancelled` -- **Task List Events**: `tasksChange` (dispatched when `listTasks()` is called) -- **Tool Call Events**: `toolCallResultChange` (includes task results) - -This pattern is consistent with InspectorClient's existing event system and works well for UI state management. - -### Task State Tracking - -InspectorClient maintains a `Map` cache of active tasks: - -- **Cache Updates**: Tasks are added/updated when: - - Task is created (from `callToolStream` `taskCreated` message) - - Task status changes (from `callToolStream` `taskStatus` messages or `getTask()` calls) - - Task completes/fails (from `callToolStream` `result`/`error` messages) - - Tasks are listed (from `listTasks()` calls) -- **Cache Lifecycle**: Tasks are cleared on disconnect -- **Purpose**: The cache is for convenience and performance - authoritative state is always from the server via SDK - -## API Reference - -### Task-Aware Tool Execution - -#### `callToolStream(name, args, generalMetadata?, toolSpecificMetadata?)` - -Calls a tool using the task-capable streaming API. This method can be used on any tool, regardless of `execution.taskSupport`: - -- **`taskSupport: "forbidden"`** → Returns immediate result (no task created) -- **`taskSupport: "optional"`** → Server decides: may create task or return immediately -- **`taskSupport: "required"`** → Will create a task (or fail if server doesn't support tasks) - -**Message Flow**: - -- **Task created**: Yields `taskCreated` → `taskStatus` updates → `result` (when complete) -- **Immediate result**: Yields `result` directly (no task created, but still uses streaming API) - -**Returns**: `Promise` with the final result - -**Events Dispatched**: - -- `taskCreated` - when a task is created -- `taskStatusChange` - on each status update -- `taskCompleted` - when task completes successfully -- `taskFailed` - when task fails -- `toolCallResultChange` - when tool call completes (with result or error) - -#### `callTool(name, args, generalMetadata?, toolSpecificMetadata?)` - -Calls a tool for immediate execution only. This method: - -- **Fails** if tool has `execution.taskSupport: "required"` (must use `callToolStream()`) -- **Works** for tools with `taskSupport: "forbidden"` or `"optional"` (but won't create tasks) - -**Rationale**: Provides explicit choice between immediate execution and task-capable execution. - -### Task Management Methods - -#### `getTask(taskId: string): Promise` - -Retrieves the current status of a task by taskId. - -**Events Dispatched**: `taskStatusChange` - -#### `getTaskResult(taskId: string): Promise` - -Retrieves the result of a completed task. The task must be in a terminal state (`completed`, `failed`, or `cancelled`). - -**Note**: No event is dispatched - the task is already completed. - -#### `cancelTask(taskId: string): Promise` - -Cancels a running task. The task must be in a non-terminal state. - -**Events Dispatched**: `taskCancelled` - -#### `listTasks(cursor?: string): Promise<{ tasks: Task[]; nextCursor?: string }>` - -Lists all active tasks with optional pagination support. - -**Events Dispatched**: `tasksChange` (with all tasks from the result) - -### Task State Access - -#### `getClientTasks(): Task[]` - -Returns an array of all currently tracked tasks from the local cache. This is useful for UI display without constantly calling `listTasks()`. - -**Note**: This returns cached tasks. For authoritative state, use `getTask()` or `listTasks()`. - -### Capability Detection - -#### `getTaskCapabilities(): { list: boolean; cancel: boolean } | undefined` - -Returns the server's task capabilities, or `undefined` if tasks are not supported. - -**Capabilities**: - -- `list: true` - Server supports `tasks/list` method -- `cancel: true` - Server supports `tasks/cancel` method - -## Task Lifecycle Events - -All task events are dispatched via InspectorClient's event system: - -```typescript -// Task created -taskCreated: { taskId: string; task: Task } - -// Task status changed -taskStatusChange: { taskId: string; task: Task } - -// Task completed successfully -taskCompleted: { taskId: string; result: CallToolResult } - -// Task failed -taskFailed: { taskId: string; error: McpError } - -// Task cancelled -taskCancelled: { taskId: string } - -// Task list changed (from listTasks()) -tasksChange: Task[] -``` - -**Usage Example**: - -```typescript -client.addEventListener("taskCreated", (event) => { - console.log("Task created:", event.detail.taskId); -}); - -client.addEventListener("taskStatusChange", (event) => { - console.log("Task status:", event.detail.task.status); -}); - -client.addEventListener("taskCompleted", (event) => { - console.log("Task completed:", event.detail.result); -}); -``` - -## Elicitation and Sampling Integration - -Tasks can require user input through elicitation or sampling requests. When a task needs input: - -1. Server updates task status to `input_required` -2. Server sends an elicitation request (`elicitation/create`) or sampling request (`sampling/createMessage`) to the client -3. Server includes `related-task` metadata (`io.modelcontextprotocol/related-task: { taskId }`) in the request -4. When the client responds, the server: - - Receives the response - - Updates task status back to `working` - - Continues task execution - -### Implementation Details - -**ElicitationCreateMessage** and **SamplingCreateMessage** both include an optional `taskId` field that is automatically extracted from the request metadata when present: - -```typescript -// ElicitationCreateMessage -public readonly taskId?: string; // Extracted from request.params._meta[RELATED_TASK_META_KEY]?.taskId - -// SamplingCreateMessage -public readonly taskId?: string; // Extracted from request.params._meta[RELATED_TASK_META_KEY]?.taskId -``` - -This allows UI clients to: - -- Display which task is waiting for input -- Link elicitation/sampling UI to the associated task -- Show task status as `input_required` while waiting for user response - -**Usage Example**: - -```typescript -client.addEventListener("newPendingElicitation", (event) => { - const elicitation = event.detail; - if (elicitation.taskId) { - // This elicitation is linked to a task - const task = client - .getClientTasks() - .find((t) => t.taskId === elicitation.taskId); - console.log("Task waiting for input:", task?.status); // "input_required" - } -}); -``` - -## Progress Notifications - -Progress notifications can be linked to tasks via `related-task` metadata. When a server sends a progress notification with `related-task` metadata, the notification is associated with the specified task. - -**Implementation**: Progress notifications are dispatched via the `progressNotification` event. The event includes metadata that may contain `related-task` information, allowing UI clients to link progress updates to specific tasks. - -## Design Decisions - -### 1. SDK-First Approach - -**Decision**: Use SDK's `experimental.tasks` API directly, wrap with InspectorClient events. - -**Rationale**: - -- SDK handles all protocol details (JSON-RPC, polling, state management) -- No need to reimplement low-level functionality -- Ensures compatibility with SDK updates -- Reduces maintenance burden - -### 2. Event-Based API - -**Decision**: Use event-based API (consistent with existing InspectorClient patterns). - -**Rationale**: - -- InspectorClient already uses EventTarget pattern -- Events work well for UI state management (web client, TUI, etc.) -- Allows multiple listeners for the same task -- Consistent with existing patterns (sampling, elicitation) - -### 3. Task State Tracking - -**Decision**: Track tasks created through InspectorClient's API, but rely on SDK/server for authoritative state. - -**Rationale**: - -- SDK does not maintain an in-memory cache of tasks -- We receive task status updates through `callToolStream()` messages - we should cache these for event dispatching -- UI needs to display tasks without constantly calling `listTasks()` -- Tasks created through our API should be tracked to link them to tool calls and dispatch events -- For tasks created outside our API (e.g., by other clients), we can use `listTasks()` when needed - -### 4. Streaming vs. Polling - -**Decision**: Use SDK's streaming API (`callToolStream`) as primary method, with polling methods as fallback. - -**Rationale**: - -- Streaming API provides real-time updates via async generator -- More efficient than manual polling -- SDK handles all the complexity -- Polling methods (`getTask`) available for manual refresh - -### 5. Elicitation and Sampling Integration - -**Decision**: Link elicitations and sampling requests to tasks via `related-task` metadata when task is `input_required`. - -**Rationale**: - -- Provides seamless UX for task input requirements -- Maintains relationship between task and elicitation/sampling requests -- Server handles task resumption after input provided -- Both elicitation and sampling work the same way: server sets task to `input_required`, sends request with `related-task` metadata, then resumes when client responds - -## Tool Support Hints - -Tools can declare their task support requirements via `execution.taskSupport`: - -- **`"required"`**: Tool must be called via `callToolStream()` - will always create a task -- **`"optional"`**: Tool may be called via `callTool()` or `callToolStream()` - server decides whether to create a task -- **`"forbidden"`**: Tool must be called via `callTool()` - will never create a task (immediate return) - -**Access**: Tool definitions returned by `listTools()` or `listAllTools()` include `execution?.taskSupport`. - -**Example**: - -```typescript -const tools = await client.listAllTools(); -const tool = tools.find((t) => t.name === "myTool"); -if (tool?.execution?.taskSupport === "required") { - // Must use callToolStream() - const result = await client.callToolStream("myTool", {}); -} else { - // Can use callTool() for immediate execution - const result = await client.callTool("myTool", {}); -} -``` - -## References - -- MCP Specification: [Tasks (2025-11-25)](https://modelcontextprotocol.io/specification/2025-11-25/basic/utilities/tasks) -- MCP SDK TypeScript: `@modelcontextprotocol/sdk/experimental/tasks` -- SDK Client API: `client.experimental.tasks` -- ResponseMessage Types: `@modelcontextprotocol/sdk/shared/responseMessage` -- SDK Task Types: `@modelcontextprotocol/sdk/experimental/tasks/types` -- Related Task Metadata: `io.modelcontextprotocol/related-task` (from spec types) diff --git a/docs/tui-web-client-feature-gaps.md b/docs/tui-web-client-feature-gaps.md index 998949814..16e0ecfc0 100644 --- a/docs/tui-web-client-feature-gaps.md +++ b/docs/tui-web-client-feature-gaps.md @@ -8,45 +8,48 @@ This document details the feature gaps between the TUI (Terminal User Interface) **InspectorClient** is the shared client library that provides the core MCP functionality. Both the TUI and web client use `InspectorClient` under the hood. The gaps documented here are primarily **UI-level gaps** - features that `InspectorClient` supports but are not yet exposed in the TUI interface. -| Feature | InspectorClient | Web Client v1 | TUI | Gap Priority | -| ----------------------------------- | --------------- | ------------- | --- | ------------ | -| **Resources** | -| List resources | ✅ | ✅ | ✅ | - | -| Read resource content | ✅ | ✅ | ✅ | - | -| List resource templates | ✅ | ✅ | ✅ | - | -| Read templated resources | ✅ | ✅ | ✅ | - | -| Resource subscriptions | ✅ | ✅ | ❌ | Medium | -| Resources listChanged notifications | ✅ | ✅ | ❌ | Medium | -| Pagination (resources) | ✅ | ✅ | ✅ | - | -| Pagination (resource templates) | ✅ | ✅ | ✅ | - | -| **Prompts** | -| List prompts | ✅ | ✅ | ✅ | - | -| Get prompt (no params) | ✅ | ✅ | ✅ | - | -| Get prompt (with params) | ✅ | ✅ | ✅ | - | -| Prompts listChanged notifications | ✅ | ✅ | ❌ | Medium | -| Pagination (prompts) | ✅ | ✅ | ✅ | - | -| **Tools** | -| List tools | ✅ | ✅ | ✅ | - | -| Call tool | ✅ | ✅ | ✅ | - | -| Tools listChanged notifications | ✅ | ✅ | ❌ | Medium | -| Pagination (tools) | ✅ | ✅ | ✅ | - | -| **Roots** | -| List roots | ✅ | ✅ | ❌ | Medium | -| Set roots | ✅ | ✅ | ❌ | Medium | -| Roots listChanged notifications | ✅ | ✅ | ❌ | Medium | -| **Authentication** | -| OAuth 2.1 flow | ❌ | ✅ | ❌ | High | -| Custom headers | ✅ (config) | ✅ (UI) | ❌ | Medium | -| **Advanced Features** | -| Sampling requests | ✅ | ✅ | ❌ | High | -| Elicitation requests (form) | ✅ | ✅ | ❌ | High | -| Elicitation requests (url) | ✅ | ❌ | ❌ | High | -| Tasks (long-running operations) | ✅ | ✅ | ❌ | Medium | -| Completions (resource templates) | ✅ | ✅ | ❌ | Medium | -| Completions (prompts with params) | ✅ | ✅ | ❌ | Medium | -| Progress tracking | ✅ | ✅ | ❌ | Medium | -| **Other** | -| HTTP request tracking | ✅ | ❌ | ✅ | | +| Feature | InspectorClient | Web Client v1 | TUI | Gap Priority | +| ------------------------------------------ | --------------- | ------------- | --- | ------------ | +| **Resources** | +| List resources | ✅ | ✅ | ✅ | - | +| Read resource content | ✅ | ✅ | ✅ | - | +| List resource templates | ✅ | ✅ | ✅ | - | +| Read templated resources | ✅ | ✅ | ✅ | - | +| Resource subscriptions | ✅ | ✅ | ❌ | Medium | +| Resources listChanged notifications | ✅ | ✅ | ❌ | Medium | +| Pagination (resources) | ✅ | ✅ | ✅ | - | +| Pagination (resource templates) | ✅ | ✅ | ✅ | - | +| **Prompts** | +| List prompts | ✅ | ✅ | ✅ | - | +| Get prompt (no params) | ✅ | ✅ | ✅ | - | +| Get prompt (with params) | ✅ | ✅ | ✅ | - | +| Prompts listChanged notifications | ✅ | ✅ | ❌ | Medium | +| Pagination (prompts) | ✅ | ✅ | ✅ | - | +| **Tools** | +| List tools | ✅ | ✅ | ✅ | - | +| Call tool | ✅ | ✅ | ✅ | - | +| Tools listChanged notifications | ✅ | ✅ | ❌ | Medium | +| Pagination (tools) | ✅ | ✅ | ✅ | - | +| **Roots** | +| List roots | ✅ | ✅ | ❌ | Medium | +| Set roots | ✅ | ✅ | ❌ | Medium | +| Roots listChanged notifications | ✅ | ✅ | ❌ | Medium | +| **Authentication** | +| OAuth 2.1 flow | ❌ | ✅ | ❌ | High | +| OAuth: Static/Preregistered clients | ❌ | ✅ | ❌ | High | +| OAuth: DCR (Dynamic Client Registration) | ❌ | ✅ | ❌ | High | +| OAuth: CIMD (Client ID Metadata Documents) | ❌ | ❌ | ❌ | Medium | +| Custom headers | ✅ (config) | ✅ (UI) | ❌ | Medium | +| **Advanced Features** | +| Sampling requests | ✅ | ✅ | ❌ | High | +| Elicitation requests (form) | ✅ | ✅ | ❌ | High | +| Elicitation requests (url) | ✅ | ❌ | ❌ | High | +| Tasks (long-running operations) | ✅ | ✅ | ❌ | Medium | +| Completions (resource templates) | ✅ | ✅ | ❌ | Medium | +| Completions (prompts with params) | ✅ | ✅ | ❌ | Medium | +| Progress tracking | ✅ | ✅ | ❌ | Medium | +| **Other** | +| HTTP request tracking | ✅ | ❌ | ✅ | | ## Detailed Feature Gaps @@ -100,7 +103,9 @@ This document details the feature gaps between the TUI (Terminal User Interface) **Web Client Support:** - Full browser-based OAuth 2.1 flow: - - Dynamic Client Registration (DCR) + - **Static/Preregistered Clients**: ✅ Supported - User provides client ID and secret via UI + - **DCR (Dynamic Client Registration)**: ✅ Supported - Falls back to DCR if no static client available + - **CIMD (Client ID Metadata Documents)**: ❌ Not Supported - Inspector does not set `clientMetadataUrl`, so URL-based client IDs are not used - Authorization code flow with PKCE - Token exchange - Token refresh