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• Add explicit output schema documentation for all 8 tools. For getTopNews, document: returns { articles: [{uuid, title, description, source, category, language, published_date, url}], total_count, limit, offset }.
• Add min/max constraints to numeric parameters: limit (1-100, default 20), offset (0+, default 0). Document these in parameter descriptions and use JSON Schema minimum/maximum properties.
• Convert free-form 'sort' and 'order' parameters to enums where applicable. E.g. sort: enum ['published_date', 'relevance', 'source'] instead of accepting arbitrary strings.
• Add timezone guidance to date parameters: 'fromDate and toDate are ISO 8601 format in UTC. Example: 2024-01-15T00:00:00Z'.
• Add recovery guidance to descriptions of all read-only tools. E.g., 'If no articles match, try: removing category filter, extending date range, or calling getNewsSources to see available sources.'
• Explicitly document destructive operations in clearCache and clearCacheByType: 'WARNING: This removes all cached data. Agent cannot recover deleted cache. Use with caution.'
• Document getCacheStats output schema: 'Returns { hit_rate (0.0-1.0), cache_size_mb, item_count, uptime_seconds, last_updated_timestamp }'.
• Add dependencies hints: 'Call getNewsSources first to see available categories and sources before filtering in getTopNews.' This guides multi-step planning.
• For getNewsByUuid, clarify UUID format in description: 'UUID of the article (16-character hex string, e.g., 550e8400e29b41d4). Call getTopNews first if you only have a title.'