devutils-mcp-server

Instructions

Implementation Reference

• src/tools/text.ts:10-42 (handler)

  The handler function for the text_stats tool that calculates various text metrics and returns them as a JSON string.

  async ({ input }) => {
    const chars = input.length;
    const charsNoSpaces = input.replace(/\s/g, "").length;
    const words = input.trim() === "" ? 0 : input.trim().split(/\s+/).length;
    const lines = input === "" ? 0 : input.split(/\r?\n/).length;
    const sentences = input.trim() === ""
      ? 0
      : input.split(/[.!?]+/).filter((s) => s.trim().length > 0).length;
    const paragraphs = input.trim() === ""
      ? 0
      : input.split(/\n\s*\n/).filter((p) => p.trim().length > 0).length;
    const readingTimeMinutes = Math.ceil(words / 200);
  
    const result = {
      characters: chars,
      characters_no_spaces: charsNoSpaces,
      words,
      lines,
      sentences,
      paragraphs,
      reading_time_minutes: readingTimeMinutes,
      avg_word_length:
        words > 0
          ? +(charsNoSpaces / words).toFixed(1)
          : 0,
    };
  
    return {
      content: [
        { type: "text" as const, text: JSON.stringify(result, null, 2) },
      ],
    };
  }

• src/tools/text.ts:6-9 (registration)

  Registration of the text_stats tool using the MCP server instance.

  server.tool(
    "text_stats",
    "Analyze text and return detailed statistics: character count, word count, line count, sentence count, paragraph count, and reading time.",
    { input: z.string().describe("The text to analyze") },