[language-support] Language Support Tests Failed: Serena MCP tools not available in agent sessions

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Summary

Automated language support testing (Go, TypeScript/JavaScript, Python) failed because serena-* prefixed tools are not registered in the agent tool registry during the test run.

Languages Affected

• ❌ Go — serena-get_symbols_overview and serena-find_symbol not available
• ❌ TypeScript/JavaScript — serena-get_symbols_overview and serena-find_symbol not available
• ❌ Python — serena-get_symbols_overview and serena-find_symbol not available

Error Details

For all three languages, calling any serena- prefixed tool resulted in:

Tool not available in this agent session. serena-get_symbols_overview is not registered in the tool registry for this agent. No serena-* prefixed tools are accessible.

The tools.json catalog at /tmp/gh-aw/mcp-logs/tools.json was not found, suggesting the MCP gateway with Serena backend was not active for this session.

Reproduction Steps

1. Trigger the language-support-tester workflow (workflow run ID: 22377107410)
2. The agent attempts to call serena-get_symbols_overview with relative_path: "internal/server"
3. Tool call fails — serena-* tools are absent from the agent tool registry

Root Cause Hypothesis

The Serena MCP server is either:

1. Not running when the agent session starts, or
2. Not configured/registered in the MCP gateway that feeds tools to the agent session, or
3. Not connected to this specific agent session at startup time

Note: The underlying source files for all three languages are intact and correct. Go source (internal/server/), JavaScript samples (test/serena-mcp-tests/samples/js_project/), and Python samples (test/serena-mcp-tests/samples/python_project/) all exist in the workspace.

Expected Behavior

serena-get_symbols_overview and serena-find_symbol should be available with the serena- prefix and respond with symbol information for Go, JavaScript, and Python files.

Workflow Run

Run ID: 22377107410 (2026-02-25)

Generated by Language Support Tester

• expires on Mar 4, 2026, 1:04 AM UTC