This is a test fixture server, not a production MCP tool provider. All four tools have basic descriptions (10-30 chars each) and simple input schemas, but lack the depth, error guidance, and composition patterns expected in production agents. Tools are named correctly (verb_noun pattern), parameters are typed, but descriptions are minimal ('Add two numbers', 'Echo back the input message'). No output schemas documented. No error handling or recovery guidance. No parameter constraints or validation hints. The server itself is a test infrastructure tool (recording/replay framework), not a domain-specific tool suite.

• Expand each tool description to 50-200 chars. Example: 'add' → 'Add two numbers. Accepts integers in range -999999999 to 999999999. Returns the sum. Useful for math operations in multi-step calculations.'
• Document output schemas explicitly. For get_weather, document: 'Returns {city: string, temp_c: integer, condition: string [sunny|cloudy|rainy|snowy], humidity: integer [0-100]}'.
• Add error handling stubs. Example for get_weather: 'If city not found, returns error: "City '<city>' not found. Specify a valid city name or call list_cities() to see available options."'
• Add parameter constraints. Example for multiply: 'Parameters a, b: float. Range: -1e10 to 1e10. Precision: up to 15 decimal places.'
• Note: This is a test fixture server used for mcp-recorder's test infrastructure. For production tool suites, apply these improvements to ensure LLM compatibility.

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

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