Server has 6 tools with complete input schemas and descriptions. Tool names follow verb_noun convention (detect_, generate_, check_, list_, diff_). Descriptions are present but brief (avg ~50 chars, below the 194-char baseline). All tools are READ_ONLY with proper annotations. However, parameter descriptions lack detail on constraints, formats, and valid ranges. Output schemas are not documented in the visible code. Error handling and recovery guidance are absent. Tool composition is sound (each does one thing), but descriptions could better explain WHEN to use each tool vs. alternatives.

• Expand tool descriptions to 100 - 200 chars. Include WHEN to use (e.g., 'Call this first to detect the current spec version before planning migration') and dependencies (e.g., 'Requires a valid MCP server repo with package.json').
• Document output schemas for each tool. Add a 'Returns' section to each description or create a separate schema reference. E.g., detect_spec_version returns {version: string, detected_at: string, confidence: number}.
• Add constraint details to parameter descriptions. E.g., 'repo_path: Absolute or relative path to MCP server directory. Must contain package.json with mcp.specVersion field.' and 'target_version: One of the supported versions (see list_supported_versions).'
• Implement error handling with recovery hints. E.g., if repo_path is invalid, return 'Repo not found at {path}. Ensure the path is correct and contains a valid MCP server.' If target_version is unsupported, return 'Version {version} not supported. Call list_supported_versions() to see available versions.'
• Add a discovery tool or enhance list_supported_versions to return version details (release date, breaking changes, migration effort). This helps agents plan which version to target.