Critical gaps across all dimensions. All four tools have parameter descriptions missing (city param has null description). No output schemas documented. Input schemas present but incomplete (missing descriptions). Tool naming mixes languages (Portuguese/English) without clear convention. No error handling guidance, no pagination support, no validation. Baseline for A+ tools: 100% have param descriptions; this server has 0%.

• Add non-empty descriptions to buscar_temperatura_atual and buscar_previsao_tempo. Example: 'Get current weather temperature and conditions for a specific city (Portuguese interface).'
• Add description to 'city' parameter in all tools. Example: 'City name (e.g., London, São Paulo). Accepts city names in any language.'
• Document output schema for each tool. Example for get_current_temperature: 'Returns {temp: number (°C), feels_like: number, humidity: number (%), description: string, wind_speed: number (m/s)}'.
• Wrap API calls in try-catch with actionable error messages. Example: 'City not found. Try a different spelling or use a major city name.' instead of raw JSON response.
• Consolidate to single naming convention (recommend English: get_current_temperature, get_weather_forecast) and remove Portuguese duplicates, or clearly document when to use each.