SearChat exhibits significant definition quality gaps. Tool descriptions are present but generic (avg ~60 chars, below 194-char baseline). Input schemas are partially visible but lack critical details: parameter types are declared but descriptions are minimal or missing for many params. The 'search' tool has reasonable schema structure, but tools like 'intentAnalysis', 'rewriteQuery', 'generateQuery', 'reflection', and 'finalizeAnswer' have minimal descriptions (10-30 chars) that fail to explain WHEN to use them or WHAT they return. No output schemas are documented. Error handling is absent, no recovery guidance, no categorization of retryable vs fatal errors. Tool composition shows some promise (search + research + reflection form a coherent pipeline), but the interface lacks the clarity needed for reliable LLM selection and chaining.

• Expand tool descriptions to 100-200 chars. For each tool, answer: What does it do? When should the LLM call it? What does it return? Example: 'Analyze user intent to determine if web search is needed. Call this first to decide whether to search or answer from context. Returns: {needs_search: boolean, reasoning: string}'.
• Document output schemas for all tools. Define the structure of return values (fields, types, required vs optional). Example for 'research': {sources: [{url, title, snippet}], total_results: number, next_cursor?: string}.
• Add parameter descriptions for complex inputs. For 'research.queries' (array), specify: 'Array of search query strings (1-10 queries). Each query 1-200 chars.' For 'reflection.findings', specify: 'Markdown-formatted summary of research results, including key facts and source citations.'
• Implement error handling with recovery guidance. Return structured errors: {error: string, category: 'retryable'|'user_fixable'|'fatal', suggestion: string}. Example: 'Search failed: rate limited. Retry in 30s or try a simpler query.'
• Add tool annotations (readOnlyHint, idempotentHint) to clarify side effects. Mark 'search', 'intentAnalysis', 'rewriteQuery', 'generateQuery', 'reflection', 'finalizeAnswer' as read-only. Mark 'chat' as potentially stateful if it persists conversation history.

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

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