Three tools declared but source code shows only observation.ts is visible. Forecast and warnings tools are inferred from package.json keywords and server.ts registration, not from actual tool definitions. Cannot verify schemas, descriptions, or parameter types for forecast/warnings. Observation tool file reference provided but content not shown. No input schemas visible in provided code. Tool descriptions cannot be assessed. This server fails the basic requirement: visible tool definitions with explicit schemas and descriptions.

• Provide complete tool implementation files (forecast.ts, warnings.ts, observation.ts) showing explicit tool registration with McpServer.tool() calls, including full input schemas with types and descriptions for all parameters.
• Add tool descriptions (50-200 chars) explaining WHAT each tool does, WHEN to use it, and what it returns. Example: 'Get weather forecast for a Spanish municipality by name or code. Returns daily/hourly predictions with temperature, wind, and precipitation.'
• Define input schemas with JSON Schema: specify parameter types (string, number, boolean), add enums for constrained values (e.g., forecast_type: ['daily', 'hourly']), and document format constraints (e.g., municipality_code: '2-5 digits').
• Add parameter descriptions for every input. Example: 'municipality_code (string, 2-5 digits): AEMET municipality code. Use findMunicipalityByCode() helper to resolve from name.'
• Document output schemas showing what fields each tool returns. Example: 'Returns {forecast: [{date, temp_min, temp_max, wind_speed, precipitation}], source: 'AEMET', updated_at: ISO8601}'.