Single tool with solid naming (verb_noun pattern) and comprehensive parameter schema. Description is adequate (145 chars, within 10-1024 range). Input schema is well-structured with types, descriptions, and enums. However, output schema is not documented in the tool definition itself, only generated via external script. Parameter descriptions are present but could be more prescriptive about constraints and use cases. No tool annotations (readOnlyHint, etc.) despite being read-only. Error handling and recovery guidance are absent from the tool definition.

• Add output schema documentation to the tool definition. Include a 'returns' section describing the structure: array of Comment objects with fields (id, author, body, created_at, resolved, resolvable, system, etc.). Reference the Zod schema or JSON Schema inline.
• Declare tool annotations in the tool registration: set readOnlyHint=true to signal safety. This helps agents understand the tool cannot modify state.
• Enhance parameter descriptions with explicit constraints and examples. E.g., 'perPage: Pagination size (1-100, default 100). Use with multiple calls to fetch all comments if result count exceeds perPage.' and 'project: GitLab project path in format group/subgroup/project (e.g., myorg/backend/api). Validate format before calling.'
• Add error handling guidance to the tool description. Document common failure modes: 'Returns error if project not found, MR does not exist, or authentication fails. If auth fails, verify GITLAB_TOKEN is set and has api scope.'
• Document the response structure and pagination behavior in the tool description. E.g., 'Returns array of comments sorted chronologically. If result count equals perPage, more comments may exist, increment page parameter to fetch next batch.'

Inferred effective spec: 2025-06-18+.

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