This server has basic tool definitions with schemas and descriptions present, but significant quality gaps limit production readiness. All 5 tools have input schemas with type definitions and descriptions in Chinese. However, descriptions are minimal (10-20 chars), parameter descriptions lack actionable detail, and there is no documented output schema. No error handling guidance, no tool annotations (readOnlyHint), and no composition support for chaining. The server exposes GitLab API complexity directly rather than abstracting it for agent reasoning. Tool names follow verb_noun convention but descriptions do not explain WHEN to use each tool or what downstream actions they enable.

• Expand tool descriptions to 50-200 chars. Example: 'gitlab.projects.list: Retrieve a paginated list of GitLab projects. Use this to discover available projects before fetching details or repository content. Returns project_id, name, and description for each project.'
• Document output schemas for each tool. Add a 'returns' field to each tool definition showing the structure: {type: 'object', properties: {project_id: {type: 'string'}, name: {type: 'string'}, ...}}
• Add tool annotations to the schema. Set readOnlyHint: true for all 5 tools so LLMs know these are safe to call without side effects.
• Add min/max constraints to numeric parameters. E.g., page: {type: 'integer', minimum: 1, description: 'Page number (1-indexed)'}, per_page: {type: 'integer', minimum: 1, maximum: 100, description: 'Items per page (1-100, default 20)'}
• Enhance error handling in TOOL_HANDLERS. Catch GitLab API errors and return structured recovery hints. E.g., if projectId is invalid, catch the 404 and return {error: 'Project not found', suggestion: 'Call gitlab.projects.list() to find valid project IDs'}

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

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