Single tool 'index_repository' has a reasonable name and description (89 chars), but critical gaps undermine quality. Input schema is present with two parameters (repo_path, mode), both typed and described. However, NO output schema is documented, LLMs cannot plan downstream calls or extract results. The tool performs a WRITE operation (indexing) but lacks error handling guidance, recovery instructions, or confirmation patterns for such a destructive/resource-intensive operation. No tool annotations (destructiveHint, idempotentHint) despite being a write tool. Parameter 'mode' has an enum constraint (good), but repo_path lacks format/validation guidance. Overall: bare-minimum definition with missing output contract and error handling.

• Document the complete output schema: e.g. { indexed_symbols: number, indexed_files: number, index_path: string, status: 'success'|'partial'|'failed', errors?: string[] }. This enables agents to verify success and extract the index location.
• Add error handling guidance: 'If repo_path is invalid, returns error with available paths. If indexing times out (>5min), returns partial results with resume_token for incremental mode.'
• Declare tool annotations in the schema: add destructiveHint: true (modifies filesystem) and idempotentHint: false (repeated calls may re-index, consuming resources).
• Enhance repo_path description: 'Absolute or relative path to Git repository root. Must contain .git directory. Max 1000 files. Example: /home/user/my-project or ./src'.
• Add pagination/limits guidance: 'Returns up to 10,000 indexed symbols. For larger repos, use incremental mode to resume from last checkpoint. Call with mode=incremental to fetch next batch.'

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

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