Server has 13 tools with complete input schemas and descriptions. Naming follows verb_noun convention (get_, post_, rate_). Descriptions are present and contextual (avg ~120 chars), meeting baseline minimums. However, output schemas are not documented in the source, LLMs cannot predict response structure. Error handling is absent; no recovery guidance or categorization. Parameters lack enums where appropriate (e.g., category, sort, time in get_articles are free-form strings). Chat tools include helpful dependency hints ('Always call get_chat_messages first'), which is good practice. Security: credentials injected via environment variables, not exposed as parameters. Composition is sound, tools are single-responsibility and chainable (e.g., get_chat_messages returns usernames for send_chat_message). Missing: output schema documentation, error handling patterns, input validation guidance.

• Document output schemas for all 13 tools. Include field names, types, and nesting. Example: 'Returns {articles: [{id: number, title: string, summary: string, category: string, source: string, published_at: ISO8601}], total: number, page: number}'.
• Convert free-form string parameters to enums. In get_articles, change 'category' to enum [world, politics, economy, technology, health, sport, science, entertainment, climate, travel]; 'sort' to enum [latest, popular, discussed]; 'time' to enum [24h, 7d, 30d].
• Add error handling patterns. Define error responses with recovery guidance: 'Article not found (404). Try search_articles() or get_trending_debates() to discover available articles.' Categorize as retryable, user-fixable, or fatal.
• Implement confirmation for destructive operations. Add optional 'dry_run' parameter to post_comment, rate_article, send_chat_message. Return 'Would post comment: "..." on article 42. Call again with confirm=true to execute.'
• Enhance parameter descriptions with format constraints. E.g., 'content: Message text (max 500 chars, UTF-8, newlines allowed, no HTML). Include @username to mention someone (get usernames from get_chat_messages first).'