get-weekly-news

Instructions

Implementation Reference

• src/index.ts:184-215 (handler)

  The core handler logic for the 'get-weekly-news' tool. It fetches the latest RSS feed from The Verge, filters articles from the past 7 days, randomly selects 10 articles, formats them into brief summaries, and returns the result as structured text content. Includes error handling with console logging and error response.

  async () => {
    try {
      const allNews = await fetchVergeNews();
      const weeklyNews = filterNewsByDate(allNews, 7); // Last 7 days
      
      // Randomly select 10 news items from the past week
      const randomWeeklyNews = getRandomNewsItems(weeklyNews, 10);
      
      const formattedNews = formatNewsItems(randomWeeklyNews);
      const newsText = formatNewsAsBriefSummary(formattedNews);
      
      return {
        content: [
          {
            type: "text",
            text: `# The Verge - Random Weekly News\n\n${newsText}`
          }
        ]
      };
    } catch (error) {
      console.error("Error in get-weekly-news:", error);
      return {
        content: [
          {
            type: "text",
            text: `Error fetching weekly news: ${error instanceof Error ? error.message : String(error)}`
          }
        ],
        isError: true
      };
    }
  }

• src/index.ts:179-216 (registration)

  The registration of the 'get-weekly-news' tool using McpServer.tool(). Specifies the tool name, description, empty input schema ({}), and references the inline handler function.

  // Register tool for weekly news
  server.tool(
    "get-weekly-news",
    "Get the latest news from The Verge for the past week",
    {},
    async () => {
      try {
        const allNews = await fetchVergeNews();
        const weeklyNews = filterNewsByDate(allNews, 7); // Last 7 days
        
        // Randomly select 10 news items from the past week
        const randomWeeklyNews = getRandomNewsItems(weeklyNews, 10);
        
        const formattedNews = formatNewsItems(randomWeeklyNews);
        const newsText = formatNewsAsBriefSummary(formattedNews);
        
        return {
          content: [
            {
              type: "text",
              text: `# The Verge - Random Weekly News\n\n${newsText}`
            }
          ]
        };
      } catch (error) {
        console.error("Error in get-weekly-news:", error);
        return {
          content: [
            {
              type: "text",
              text: `Error fetching weekly news: ${error instanceof Error ? error.message : String(error)}`
            }
          ],
          isError: true
        };
      }
    }
  );

• src/index.ts:101-125 (helper)

  Helper utility specifically used by get-weekly-news to randomly select 10 news items from the filtered weekly news list, ensuring no duplicates.

  function getRandomNewsItems(items: Parser.Item[], count: number = 10) {
    if (items.length <= count) {
      return items; // Return all items if there are fewer than requested
    }
    
    // Create a copy of the array to avoid modifying the original
    const itemsCopy = [...items];
    const result: Parser.Item[] = [];
    
    // Randomly select 'count' items
    for (let i = 0; i < count; i++) {
      if (itemsCopy.length === 0) break;
      
      // Get a random index
      const randomIndex = Math.floor(Math.random() * itemsCopy.length);
      
      // Add the randomly selected item to the result
      result.push(itemsCopy[randomIndex]);
      
      // Remove the selected item to avoid duplicates
      itemsCopy.splice(randomIndex, 1);
    }
    
    return result;
  }