The 'add' tool has a valid Zod schema with typed parameters but no parameter descriptions. The 'get-energy-prices' tool has an empty input schema and no description. Neither tool documents output structure or error handling. Tool names are reasonable ('add', 'get-energy-prices') but descriptions are mandatory for LLM tool selection. This server fails basic quality baselines: 100% of A+ tools have docstrings; 100% of A+ tool params have descriptions.

• Add a description to the 'add' tool: 'Adds two numbers together and returns the sum. Use this for arithmetic operations.' (50-100 chars).
• Add descriptions to parameters 'a' and 'b': 'The first number to add' and 'The second number to add'.
• Add a description to 'get-energy-prices': 'Fetches current and forecast energy prices from the AWATTAR API. Returns hourly price data for the next 24 hours.'
• Document output schema for both tools. E.g., 'add returns {result: number}'; 'get-energy-prices returns {prices: [{timestamp: string, price: number}]}'.
• Wrap the fetch call in try-catch with a 5-second timeout and return a structured error: '{error: "API unavailable", retry: true, message: "AWATTAR service is down. Try again in 30 seconds."}'.