Single tool 'get_forecast' has a well-formed JSON Schema with proper types, constraints (min/max days 1-5), and required fields. Description is adequate (28 chars, below ideal 50-200 range). However, no output schema is documented, LLMs cannot predict the response structure. Parameter 'days' lacks a description (only constraint text in schema). The tool is READ_ONLY and safe, but lacks error recovery guidance. Resources feature is present but returns hardcoded mock data unrelated to weather functionality, indicating incomplete implementation. Overall definition quality is below median due to missing output documentation and incomplete parameter descriptions.

• Add explicit output schema documentation: 'Returns array of ForecastDay objects with fields: date (ISO 8601 string), temperature (number, Celsius), conditions (string description).'
• Expand tool description to 80-150 chars: 'Retrieve 1-5 day weather forecast for a city. Returns daily temperature and conditions. Call this to plan activities or check weather before travel.'
• Add description to 'days' parameter: 'Number of forecast days to return (1-5). Defaults to 3 if omitted. More days = longer forecast window but may include less accurate predictions.'
• Wrap API errors in recovery guidance: 'City not found. Try search_cities() first, or check spelling. Rate limit: retry after 60 seconds.' Use pattern:recovery-guide.
• Remove or complete the Resources feature. Either implement weather-related resources (e.g., 'weather://current-conditions') or remove ListResources/ReadResource handlers to avoid confusion.