This MCP server has two tools with basic but incomplete definitions. Both tools have action-verb names (get_weather, get_news) which follows naming conventions. Descriptions are present but brief (under 100 chars), meeting minimum requirements. Input schemas are explicitly defined with proper JSON Schema format including types and parameter descriptions. However, there are significant gaps: output schemas are NOT documented (tools return structured responses but LLMs cannot see the expected fields), error handling is minimal and non-instructive (generic error messages like 'Weather API error: ...' without recovery guidance), no tool annotations (readOnlyHint, destructiveHint, etc.), and parameter constraints lack depth. The get_news tool accepts an optional 'country' parameter but does not document valid country codes or format requirements. Tool implementations call external APIs with hardcoded timeouts and basic error wrapping, but responses are returned as plain JSON text rather than structured objects. The server does not guide LLMs on how to recover from errors or what to do if an API key is missing.

• Add explicit output schemas to both tool definitions. Document that get_weather returns {city, temperature, feels_like, humidity, description, wind_speed} with types (string, number, etc.). Document that get_news returns {totalResults: number, articles: [{title, description, source, url, publishedAt}]}.
• Replace generic error messages with actionable recovery guidance. Example: if OPENWEATHER_API_KEY is missing, return 'Weather service not configured. Please set OPENWEATHER_API_KEY environment variable.' If a city is not found, return 'City not found. Try searching for alternate spellings (e.g., "New York" vs "NewYork").'
• Add readOnlyHint: true to both tool definitions in the schema to signal these are safe read-only operations.
• For get_news 'country' parameter, add explicit constraint: 'ISO 3166-1 alpha-2 country code (e.g., "us", "gb", "de"). Omit for global results.' and optionally an enum of common codes.
• Document the 5-article result limit in the get_news tool description: 'Returns up to 5 most recent articles sorted by publish date.'
• Refactor response wrapping: return structured content objects directly instead of wrapping JSON in a text field. Use content type 'application/json' or structured objects that clients can parse natively.
• Add parameter validation and clarify dependencies. If the country parameter affects the API call behavior, document which fields are available per country.
• Consider adding a dry-run or limit parameter to get_news to let agents control result volume.