Single tool 'hybrid_search' with well-structured schema and reasonable descriptions. Tool naming is clear and action-oriented (verb_noun pattern). Parameters have type constraints (min/max bounds) and mostly good descriptions. However, output schema is not formally documented, tool returns JSON text rather than structured typed output. Parameter descriptions could be more concise and action-focused. Error handling exists but lacks recovery guidance. Overall solid for a single-tool server but missing production-grade documentation polish.

• Document the output schema explicitly. Specify that results contain fields: id, title, content, _rankingScore, etc. Consider returning a structured object with a 'hits' array and 'totalResults' count rather than raw JSON text.
• Refactor parameter descriptions to be concise (10 - 100 chars). Move tuning guidance ('try adjusting to 0.8 or 0.2') to tool description or a separate 'Usage Tips' section.
• Add explicit recovery guidance: 'Error: no results found. Try with fewer keywords or adjust semantic_ratio toward 0 (keyword-focused) or 1 (semantic-focused).'
• Document the mutual dependency rule: 'Both filterable_attribute AND filter_word must be provided to apply a filter. If only one is given, the filter is ignored.'
• Enhance tool description: 'Use when you need to balance keyword matching and semantic similarity. Start with semantic_ratio=0.5. If results are too generic, lower ratio toward 0 (keyword emphasis); if too narrow, raise toward 1 (semantic emphasis).'
• Consider adding a 'list_available_filters' tool to help users discover filterable attributes instead of hardcoding them in the description.
• Return results in a consistent structure with pagination support (limit, offset, totalResults) to handle large result sets.

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

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