Six well-named, read-only Git tools with clear descriptions (avg 156 chars, within baseline 194). All tools have Zod schemas with type definitions and parameter descriptions. However, output schemas are NOT documented, responses are JSON.stringify'd without explicit field definitions. Error handling is minimal (no recovery guidance, no categorization). No tool annotations (readOnlyHint present but not declared). Parameter descriptions are adequate but lack format constraints (e.g., 'range' accepts free-form strings like 'main..feature' without validation examples). No pagination support despite tools returning potentially large result sets (git_search, git_changelog). Missing per-tool output schema documentation blocks the LLM from planning downstream operations.

• Document output schemas for each tool. Add TypeScript interfaces or JSON Schema blocks in comments showing returned field names, types, and meanings. Example: git_summary returns {repo_path: string, current_branch: string, recent_commits: Array<{hash, date, message, author}>, ...}.
• Add pagination to git_search and git_changelog. Introduce limit/offset or cursor parameters. Return total_count and next_cursor in responses. Cap default results at 20-50 items.
• Enhance error messages with recovery guidance. Instead of 'Directory does not exist: /path', return 'Directory does not exist: /path. Verify the repo_path parameter or use the current working directory (omit repo_path).'
• Add format constraints to parameter descriptions. For 'range', document: 'Git commit range (e.g., main..feature, HEAD~5..HEAD, v1.0.0..v2.0.0)'. For 'query', add: 'Search term (1-100 characters, alphanumeric + spaces).'
• Declare tool annotations in server.tool() calls. Add readOnlyHint: true to all six tools to signal they are safe for caching and do not modify state.