Three tools with consistent naming (verb_noun pattern) and reasonable descriptions. All tools have input schemas with types and parameter descriptions. However, several definition quality issues reduce the score: (1) Output schemas are not documented, only API responses are mentioned; (2) Parameters lack constraints (enums, ranges, format specifications); (3) Error handling guidance is absent; (4) Some parameter descriptions are generic ('e.g. value') rather than prescriptive; (5) No pagination guidance despite page/page_size parameters. The server implements READ_ONLY tools against a news API, reducing complexity, but definition completeness falls short of production baseline.

• Document output schemas for each tool. Specify: (1) top-level fields (e.g. articles[], totalResults); (2) article schema (title, description, url, source, publishedAt, author); (3) whether results are paginated and how to access next page. Example: {'articles': [{'title': str, 'url': str, 'publishedAt': ISO8601_string}], 'totalResults': int}
• Convert parameter constraints to enums in the schema. For 'sort_by': enum=['relevancy', 'popularity', 'publishedAt']. For 'language': enum=['ar', 'de', 'en', ...]. For 'country': enum=['ae', 'ar', 'at', ...]. Remove inline examples from descriptions.
• Add numeric bounds to schema. Set page_size: {type: integer, minimum: 1, maximum: 100}. Set page: {type: integer, minimum: 1}. Update descriptions to state 'Default: 1. Max results per page: 100.'
• Add pagination and result-limit guidance. Example: 'Returns up to 100 articles per page. Use the page parameter to iterate. Total results may exceed 10,000; use date range (from/to) to narrow scope.'
• Add error handling and recovery hints to tool descriptions. Example: 'If you receive "country not found", try search_everything with a domain filter instead. If results are empty, expand date range or broaden query keywords.'
• Expand 'get_sources' description to 100+ characters. Explain when to call it (before search_everything to discover valid source IDs), what it returns (available news sources by category/language/country), and how to use results.
• Document whether optional parameters have defaults. Clarify: 'If q is omitted, returns top articles. If country and category are both specified, country takes precedence.'

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry