The server has 3 well-named tools with explicit descriptions and JSON Schema definitions visible in index.js. However, critical gaps emerge: (1) Parameter descriptions are sparse and sometimes vague. The 'deep_seek' and 'intent_rewrite' boolean flags lack context on when/why to use them. (2) Output schemas are entirely undocumented, the tool descriptions say 'Returns synthesized answers' and 'Returns list of relevant notes/files' but provide no structured field definitions. (3) Error handling is minimal, the code throws generic 'Knowledge base not found' errors with no recovery guidance. (4) The history parameter in search_knowledge is an array of objects but lacks detailed schema for role/content constraints. This is a functional server with decent naming and basic structure, but falls short of production-grade definition quality.

• Document the output schema for each tool in the inputSchema or as a separate outputSchema field. For search_knowledge, specify: 'Returns {answer: string, references: [{title, source, url}], confidence_score: number}' or actual fields. For recall_knowledge, specify: 'Returns {results: [{id, title, source, relevance_score, snippet}], total_count: number}'.
• Add detailed descriptions to control parameters. For deep_seek, add: 'If true, enables extended reasoning before returning answer, improving quality at cost of latency. Use for complex research questions.' For intent_rewrite, add: 'If true, rewrites user query to improve semantic matching. Useful if initial query is vague or uses domain jargon.'
• Enhance error messages with recovery guidance. Change 'Knowledge base not found: xyz' to 'Knowledge base xyz not found. Call list_knowledge_bases to see available KBs: [kb1, kb2]. Or omit kb_id to use the default knowledge base.'
• Document the history parameter schema constraint: specify that role must be exactly 'user' or 'assistant' (already in enum), add required=[...] for items, and clarify whether history ordering matters and if empty arrays are valid.
• Add range constraints to top_k parameter: 'Number of results to return (min: 1, max: 100, default: 10). Larger values may increase latency.'
• Clarify when kb_id is truly optional. Add to search_knowledge and recall_knowledge descriptions: 'If kb_id is omitted and exactly one knowledge base is configured, it will be used by default. If multiple KBs exist, kb_id is required. Call list_knowledge_bases() to see available options.'