Six tools with clear verb-noun naming (search_, get_) and reasonable descriptions (100-180 chars). All tools have input schemas with typed parameters and descriptions. However, output schemas are not documented, LLMs cannot predict return structure. Parameters lack constraints (enums, ranges, format specs). Error handling is generic ('error' field) with no recovery guidance. No tool annotations (readOnlyHint, idempotentHint). Missing dependency hints (e.g., 'search_release returns MBID; use it with get_release_info'). Descriptions are adequate but could be more LLM-optimized per pattern:tool-description baseline (50-200 chars ideal).

• Document output schemas for all tools. Example: 'Returns {releases: [{mbid: string, title: string, artist: string, year: integer}], total: integer}'.
• Add parameter constraints: year as integer with min=1969, max=current_year; incarnation_id as enum or regex pattern (e.g., 'kc_YYYY(_YYYY)?').
• Add tool annotations via FastMCP: @mcp.tool(annotations={'readOnlyHint': True, 'idempotentHint': True}) for all tools.
• Enhance error messages with recovery guidance: 'MBID not found. Try search_release() with a partial title.' instead of bare 'error' field.
• Add dependency hints to descriptions: 'Use search_release() first to get MBID, then pass it to this tool.'