Three tools with basic schemas and descriptions, but significant gaps in parameter documentation, error guidance, and LLM-optimized descriptions. Tool names are action-oriented (search_, read_, safe_kb_write) but descriptions are minimal (10-50 chars, well below the 50-200 char baseline for A+ tools). Parameters lack type constraints and validation guidance. Error responses are generic strings rather than actionable recovery hints. No output schemas documented. The write tool has a critical security concern: it accepts arbitrary file paths despite get_safe_path validation, and mode='replace_after_header' has undocumented behavior. Overall structure is functional but falls short of production-grade tool design.

• Expand tool descriptions to 100-150 chars. Example: 'search_notes: Search all connected knowledge bases by 1-3 keywords. Returns up to 15 ranked results (most relevant first). Use when you need to find notes by topic or content. Returns plain text list of file paths.'
• Document output schemas explicitly. E.g., search_notes returns {type: 'string', description: 'Plain text list of file paths, one per line, ranked by relevance. Returns "Ничего не найдено." if no matches.'} and read_note returns {type: 'string', description: 'Full file content as UTF-8 text.'}
• Add enum constraint to 'mode' parameter: {type: 'string', enum: ['append', 'full_replace', 'replace_after_header'], description: '...'}. Document that target_header is REQUIRED when mode='replace_after_header'.
• Replace generic error strings with actionable recovery hints. E.g., 'File not found: {file_path}. Verify the path exists in one of the configured knowledge bases. Call search_notes() to find the correct path.' Categorize errors as retryable vs. user-fixable.
• Add parameter constraints to 'query' (min 1 char, max 100), 'file_path' (must be relative, no '..' traversal), and 'content' (max 1MB). Document these in descriptions so LLMs understand limits before calling.

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

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