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Development Guide

Project Structure

src/
├── bin.ts                    # CLI entry point (yargs command routing)
├── cli.config.ts             # App configuration (model, URLs)
├── run.ts                    # Installer orchestration entry point
├── lib/
│   ├── agent-runner.ts       # Core agent execution
│   ├── agent-interface.ts    # Claude Agent SDK interface
│   ├── installer-core.ts     # Headless installer core (XState)
│   ├── config.ts             # Framework detection config
│   ├── constants.ts          # Integration types, shared constants
│   ├── credential-store.ts   # OAuth credential storage (keyring + file fallback)
│   ├── config-store.ts       # Environment config storage (keyring + file fallback)
│   ├── api-key.ts            # API key resolution (env var → flag → config)
│   ├── workos-api.ts         # Generic WorkOS REST API client
│   ├── credential-proxy.ts   # Token refresh proxy for long sessions
│   ├── ensure-auth.ts        # Startup auth guard
│   └── adapters/             # CLI and dashboard adapters
├── commands/
│   ├── env.ts                # workos env (add/remove/switch/list)
│   ├── organization.ts       # workos organization (create/update/get/list/delete)
│   ├── user.ts               # workos user (get/list/update/delete)
│   ├── install.ts            # workos install
│   ├── install-skill.ts      # workos install-skill
│   ├── auth-status.ts        # workos auth status
│   ├── login.ts              # workos auth login
│   └── logout.ts             # workos auth logout
├── dashboard/                # Ink/React TUI components
├── nextjs/                   # Next.js installer agent
├── react/                    # React SPA installer agent
├── react-router/             # React Router installer agent
├── tanstack-start/           # TanStack Start installer agent
├── vanilla-js/               # Vanilla JS installer agent
└── utils/
    ├── table.ts              # Terminal table formatter
    ├── clack-utils.ts        # CLI prompts
    ├── debug.ts              # Logging with redaction
    ├── redact.ts             # Credential redaction
    └── ...                   # Additional utilities

Setup

# Install dependencies
pnpm install

# Build
pnpm build

Development Workflow

# Build, link globally, and watch for changes
pnpm dev

# Test installer in another project
cd /path/to/test/nextjs-app
workos dashboard

# Test management commands
workos env add sandbox sk_test_xxx
workos organization list
workos user list

Commands

# Build
pnpm build

# Clean and rebuild
pnpm clean && pnpm build

# Format code
pnpm format

# Check types
pnpm typecheck

# Run tests
pnpm test
pnpm test:watch

TypeScript Configuration

  • Target: ES2022
  • Module: NodeNext (ESM)
  • Strict mode enabled
  • JSX: react-jsx (for Ink/React dashboard)

Making Changes

Adding a New Framework

  1. Create src/your-framework/your-framework-installer-agent.ts
  2. Define FrameworkConfig with metadata, detection, environment, UI
  3. Export runYourFrameworkInstallerAgent(options) function
  4. Add to Integration enum in lib/constants.ts
  5. Add detection logic to lib/config.ts
  6. Wire up in run.ts

See nextjs/nextjs-installer-agent.ts as reference.

Updating Integration Instructions

The installer prompt in agent-runner.ts tells Claude to:

  1. Fetch live docs from workos.com
  2. Fetch SDK README from GitHub/npm
  3. Follow official documentation

To change instructions, edit buildIntegrationPrompt() in lib/agent-runner.ts.

Adding Security Features

Credential redaction is in utils/redact.ts. Add patterns:

export function redactCredentials(obj: any): any {
  // Add new patterns here
  const redacted = JSON.stringify(obj).replace(/sk_test_[a-zA-Z0-9]+/g, (match) => `sk_test_...${match.slice(-3)}`);
  return JSON.parse(redacted);
}

Testing

Manual testing:

  1. Run installer in a test app: workos dashboard
  2. Check logs at ~/.workos/logs/workos-{timestamp}.log
  3. Verify integration works in test app

What to test:

  • Framework detection
  • API key masking (should show *****)
  • Log redaction (keys show as sk_test_...X6Y)
  • SDK installation
  • File creation
  • Environment variables
  • UI components

Evaluations

Automated eval framework for testing installer skills across frameworks and project states.

pnpm eval                    # Run all scenarios
pnpm eval --framework=nextjs # Single framework
pnpm eval --quality          # Include LLM quality grading
pnpm eval:history            # List recent runs
pnpm eval:diff <id1> <id2>   # Compare runs

See tests/evals/README.md for full documentation.

Debugging

Verbose logs:

workos --debug

Check logs:

tail -f ~/.workos/logs/workos-{timestamp}.log

Questions?

See README for user-facing docs.