N Lobby MCP Server

Instructions

Implementation Reference

• src/server.ts:458-524 (handler)

  Main handler logic for the 'get_news' tool. Parses input arguments (category, limit, sort), fetches raw news data via this.api.getNews(), applies filtering by category, sorting by date or title, limits results, and returns formatted JSON response. Includes error handling with authentication guidance.
  case "get_news": try { const { category, limit = 10, sort = "newest", } = args as { category?: string; limit?: number; sort?: "newest" | "oldest" | "title-asc" | "title-desc"; }; const news = await this.api.getNews(); let filteredNews = category ? news.filter((n) => n.category === category) : news; // Sort the news switch (sort) { case "oldest": filteredNews.sort( (a, b) => new Date(a.publishedAt || 0).getTime() - new Date(b.publishedAt || 0).getTime(), ); break; case "title-asc": filteredNews.sort((a, b) => (a.title || "").localeCompare(b.title || ""), ); break; case "title-desc": filteredNews.sort((a, b) => (b.title || "").localeCompare(a.title || ""), ); break; case "newest": default: filteredNews.sort( (a, b) => new Date(b.publishedAt || 0).getTime() - new Date(a.publishedAt || 0).getTime(), ); break; } if (limit > 0) { filteredNews = filteredNews.slice(0, limit); } return { content: [ { type: "text", text: JSON.stringify(filteredNews, null, 2), }, ], }; } catch (error) { return { content: [ { type: "text", text: `Error: ${error instanceof Error ? error.message : "Unknown error"}\n\nTo authenticate:\n1. Login to N Lobby in your browser\n2. Open Developer Tools (F12)\n3. Go to Application/Storage tab\n4. Copy cookies and use the set_cookies tool\n5. Use health_check to verify connection`, }, ], }; }
• src/server.ts:157-182 (schema)

  Tool registration entry including name, description, and detailed input schema definition for parameters: category (string filter), limit (number, default 10), sort (enum for ordering).
  { name: "get_news", description: "Retrieve school news", inputSchema: { type: "object", properties: { category: { type: "string", description: "Filter by category (optional)", }, limit: { type: "number", description: "Maximum number of news items to retrieve (optional, default: 10)", minimum: 1, default: 10, }, sort: { type: "string", description: "Sort order: 'newest' (default), 'oldest', 'title-asc', 'title-desc'", enum: ["newest", "oldest", "title-asc", "title-desc"], }, }, }, },
• src/server.ts:154-451 (registration)

  Registration of all tools including 'get_news' in the MCP server's ListToolsRequestSchema handler, making the tool discoverable to clients.
  this.server.setRequestHandler(ListToolsRequestSchema, async () => { return { tools: [ { name: "get_news", description: "Retrieve school news", inputSchema: { type: "object", properties: { category: { type: "string", description: "Filter by category (optional)", }, limit: { type: "number", description: "Maximum number of news items to retrieve (optional, default: 10)", minimum: 1, default: 10, }, sort: { type: "string", description: "Sort order: 'newest' (default), 'oldest', 'title-asc', 'title-desc'", enum: ["newest", "oldest", "title-asc", "title-desc"], }, }, }, }, { name: "get_news_detail", description: "Retrieve detailed information for a specific news article", inputSchema: { type: "object", properties: { newsId: { type: "string", description: "The ID of the news article to retrieve", }, markAsRead: { type: "boolean", description: "Mark the news article as read (optional, default: false)", default: false, }, }, required: ["newsId"], }, }, { name: "get_account_info", description: "Extract account information by parsing Next.js flight data from a rendered page", inputSchema: { type: "object", properties: {}, }, }, { name: "get_student_card_screenshot", description: "Capture a screenshot of the student ID card by following the secure portal redirect flow", inputSchema: { type: "object", properties: {}, }, }, { name: "get_required_courses", description: "Retrieve required courses information with detailed progress tracking", inputSchema: { type: "object", properties: { grade: { type: "number", description: "Filter by grade level (1, 2, or 3) (optional)", }, semester: { type: "string", description: 'Filter by term year (e.g., "2024", "2025") (optional)', }, category: { type: "string", description: 'Filter by curriculum category (e.g., "国語", "数学", "英語") (optional)', }, }, }, }, { name: "get_schedule", description: "Get school schedule for a specific date (backward compatibility)", inputSchema: { type: "object", properties: { date: { type: "string", description: "Date in YYYY-MM-DD format (optional, defaults to today)", }, }, }, }, { name: "get_calendar_events", description: "Get calendar events with advanced options", inputSchema: { type: "object", properties: { calendar_type: { type: "string", enum: ["personal", "school"], description: "Type of calendar to retrieve (personal or school)", default: "personal", }, from_date: { type: "string", description: "Start date in YYYY-MM-DD format (optional). If only from_date is provided, it will be treated as a single day.", }, to_date: { type: "string", description: "End date in YYYY-MM-DD format (optional). Must be at least 1 day after from_date when both are provided.", }, period: { type: "string", enum: ["today", "week", "month"], description: 'Predefined period (optional, overrides from/to dates). Use "today" for single day queries.', }, }, }, }, { name: "test_calendar_endpoints", description: "Test both personal and school calendar endpoints", inputSchema: { type: "object", properties: { from_date: { type: "string", description: "Start date in YYYY-MM-DD format (optional). If only from_date is provided, it will be treated as a single day.", }, to_date: { type: "string", description: "End date in YYYY-MM-DD format (optional). Must be at least 1 day after from_date when both are provided.", }, }, }, }, { name: "set_cookies", description: "Set authentication cookies for N Lobby access", inputSchema: { type: "object", properties: { cookies: { type: "string", description: "Cookie string from authenticated N Lobby session", }, }, required: ["cookies"], }, }, { name: "check_cookies", description: "Check if authentication cookies are set", inputSchema: { type: "object", properties: {}, }, }, { name: "health_check", description: "Check if N Lobby API connection is working", inputSchema: { type: "object", properties: {}, }, }, { name: "debug_connection", description: "Debug N Lobby connection with detailed information", inputSchema: { type: "object", properties: { endpoint: { type: "string", description: "Endpoint to test (default: /news)", default: "/news", }, }, }, }, { name: "test_page_content", description: "Test page content retrieval and show sample content", inputSchema: { type: "object", properties: { endpoint: { type: "string", description: "Endpoint to test (default: /news)", default: "/news", }, length: { type: "number", description: "Number of characters to show (default: 1000)", default: 1000, }, }, }, }, { name: "test_trpc_endpoint", description: "Test specific tRPC endpoint with detailed response", inputSchema: { type: "object", properties: { method: { type: "string", description: "tRPC method to test (e.g., news.getUnreadNewsCount, user.updateLastAccess)", default: "user.updateLastAccess", }, params: { type: "string", description: "JSON string of parameters (optional)", }, }, }, }, { name: "verify_authentication", description: "Verify authentication status and cookie synchronization across all clients", inputSchema: { type: "object", properties: {}, }, }, { name: "interactive_login", description: "Open browser for manual login to N Lobby (no credentials required)", inputSchema: { type: "object", properties: {}, }, }, { name: "login_help", description: "Get help and troubleshooting tips for N Lobby login", inputSchema: { type: "object", properties: { email: { type: "string", description: "Your email address (optional, for personalized help)", }, }, }, }, { name: "mark_news_as_read", description: "Mark news articles as read", inputSchema: { type: "object", properties: { ids: { type: "array", items: { type: "string", }, description: "Array of news article IDs to mark as read", }, }, required: ["ids"], }, }, ], }; });