Strong naming and schema coverage (21 tools with proper JSON Schema definitions). Most tools have helpful descriptions with dependency hints (e.g., 'Unknown? Call search_projects first'). Good parameter type coverage with enums, minimums, maximums, and descriptions. However, several critical gaps: (1) Output schemas are completely undocumented, no tool specifies what fields are returned or pagination structure; (2) Error handling is absent from definitions, no recovery guidance or error classification; (3) Some parameter descriptions are thin (e.g., 'Discussion ID' lacks format hints); (4) No idempotency or confirmation patterns for destructive operations (merge_merge_request, approve_merge_request). Tool naming is verb-forward and generally clear, with good use of action verbs (search_, list_, get_, create_, update_, merge_, approve_). PROJECT_ID parameters intelligently accept both IDs and 'group/project' format with helpful resolution logic visible in code. However, descriptions lack structured guidance on error recovery and output structure.

• Add documented output schemas to every tool definition. Example: search_projects should specify it returns [{id: string, name: string, path: string, visibility: string}]. This enables agents to plan downstream calls.
• Document pagination: specify whether list tools return total_count and next_cursor, or if limit/offset are used. State the default limit (10, 20) and maximum allowed.
• Add error guidance in descriptions. Example: 'If project_id is invalid, call search_projects(search=...) to find the correct ID. If you lack access, request maintainer permission.'
• Add a dry_run parameter to merge_merge_request, or require explicit confirmation in description: 'WARNING: This immediately merges the MR and cannot be undone. Confirm user intent before calling.'
• Expand parameter descriptions for discussion_id, body, and other write operations. Example: 'body (string, 1-10000 chars, supports GitLab Markdown)' instead of just 'Comment text'.
• Consider renaming merge_merge_request to merge_mr or accept_merge_request for clarity. If staying with current name, document prominently: 'This action merges the MR immediately; it is irreversible.'
• Document which list tools support pagination and what the response structure is. Include fields like has_more, next_cursor, or total_count in output schema documentation.
• Add idempotency hints to create_merge_request and create_review_comment. If called twice with identical parameters, what happens? Does it return the same ID or fail?
• For read-only tools that might fail due to access restrictions, provide recovery guidance: 'If this returns a 403 Forbidden error, you do not have read access to this project. Contact the project maintainer.'

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

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