Single tool 'scan_file' has a clear, detailed description (180+ chars) and proper input schema with type and description. However, the tool lacks output schema documentation, critical for LLM planning. No error handling guidance (e.g., 'file not found' recovery). Parameter description is good but could specify format constraints (absolute path only, .py files). No tool annotations (readOnlyHint, idempotentHint). The implementation shows defensive coding (file existence checks, permission handling) but this is not reflected in the tool contract. Baseline: 194 chars avg description (this tool ~180), but missing output schema and error recovery patterns drops score significantly.

• Add explicit output schema to tool definition: document that scan_file returns a Markdown string with sections for Bandit results, Semgrep results, and Gemini analysis. Include field names and types.
• Enhance parameter description with format constraint: 'Absolute path to a Python file (must exist, readable, .py extension). Example format: /Users/username/path/to/file.py'
• Add error recovery guidance to description: 'If file not found, verify the absolute path and file permissions. If Gemini analysis fails, check GEMINI_API_KEY is set.'
• Add tool annotations: set readOnlyHint=true and idempotentHint=true in the Tool definition to signal LLM that this tool is safe to retry and has no side effects.
• Move GEMINI_API_KEY to secure server-side configuration (e.g., environment variable loaded at startup, not passed as parameter). Document in setup that users must set GEMINI_API_KEY before running the server.

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry