Server provides 6 tools with basic schemas and descriptions, but falls short of production quality. All tools have descriptions (10-100 chars, mostly adequate) and input schemas with type definitions and enums. However, output schemas are completely undocumented, LLMs cannot predict what fields to expect from tool responses. Error handling is minimal (generic try-catch blocks returning string output). Tool names lack action verbs (e.g., 'datetime' instead of 'get_datetime', 'filesystem' instead of 'list_files'). Parameter descriptions are present but sparse (avg ~40 chars vs. baseline 72 chars). No pagination support documented for list operations. No idempotency hints or destructive operation warnings. Security: filesystem and database tools accept user input without visible sanitization against path traversal or SQL injection.

• Rename tools with action verbs: 'datetime' → 'get_datetime', 'filesystem' → 'list_files'/'read_file', 'database' → 'query_database', 'vector_store' → 'search_documents'/'add_document'.
• Document output schemas for all tools. Example: datetime.now() returns {iso: string, readable: string, unix: integer}. Include field types and descriptions.
• Add input validation and sanitization: filesystem.read_file must reject paths containing '..' or absolute paths; database.query must reject non-SELECT statements.
• Enhance error messages with recovery guidance. Instead of 'Exception: invalid date', return 'Invalid date format. Expected YYYY-MM-DD (e.g., 2024-01-15).'
• Add tool annotations: mark vector_store.add_document as destructiveHint=false (idempotent), filesystem.read_file as readOnlyHint=true, database.query as readOnlyHint=true.

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

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