Single tool with minimal definition quality. Tool name 'get_current_weather' follows verb_noun convention (+), but description is extremely terse (20 chars, below 34-char p10 baseline). Input schema present with proper Zod typing, but parameter description is generic and lacks context about format/constraints. No output schema documented. No error handling guidance. Tool returns mock data, suggesting this is a sample/demo server rather than production-ready.

• Expand tool description to 50-150 characters explaining: what it does, when to call it, and what it returns. Example: 'Get current weather conditions for a city. Returns temperature in Fahrenheit, weather condition (sunny/cloudy/rainy/snowy), and timestamp. Call this when the user asks about weather.'
• Add explicit output schema documenting the response structure: {type: 'object', properties: {city: {type: 'string'}, weather: {type: 'string', enum: ['sunny', 'cloudy', 'rainy', 'snowy']}, temperature: {type: 'number', description: 'Temperature in Fahrenheit'}, timestamp: {type: 'string', format: 'date-time'}}}
• Enhance 'city' parameter description with format constraints: 'The city name (e.g., New York, London, Tokyo). Must be a valid city; invalid cities return an error with suggestions.'
• Add error handling documentation: 'Returns error if city is not found or API is unavailable. Error response includes available nearby cities for user correction.'
• Replace mock data with real weather API integration (OpenWeatherMap, WeatherAPI, etc.) or clearly document this as a demo server with limitations.