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• Provide complete source code for JueJinArticleService.java showing all three tool method implementations with parameter names, types, and descriptions.
• Add JavaDoc or @Description annotations to each tool method explaining: (1) What the tool does, (2) When to use it instead of related tools, (3) What it returns, (4) Any prerequisites or dependencies.
• Document input parameter types and constraints explicitly. If queryArticleList accepts pagination (page, limit), add @Parameter annotations with descriptions: 'page (int, ≥1): 1-indexed page number. limit (int, 1-100): items per page, default 20.'
• Document output schemas. For queryArticleList, specify the return structure: 'Returns a list of articles with fields: id (string), title (string), author (string), url (string), likes (int), published_at (ISO8601 string). Includes pagination: total_count (int), has_next (boolean).'
• Implement pagination support with limits. Baseline: 'When multiple tools operate on lists, accept page/offset and limit parameters, return total count.' Cap results at 20-50 items to prevent context window exhaustion.
• Remove credential logging from McpServerApplication.run(). Replace log.info('juejin cookie key is {}', cookie) with silent check. Move cookie validation to tool execution with proper error handling, not startup logging.
• Add error handling with recovery guidance. Example: 'If article not found by ID, return available alternatives: "Article 'xyz' not found. Try search_articles() to discover available content."'