devutils-mcp-server

Instructions

Implementation Reference

• src/tools/converters.ts:277-314 (handler)

  The "byte_convert" tool is defined and implemented directly using `server.tool` inside `registerConverterTools`. The implementation calculates the base (1024 vs 1000), normalizes the input value to bytes, and converts it to all other units.

  server.tool(
    "byte_convert",
    "Convert between byte units (B, KB, MB, GB, TB, PB). Supports both binary (1024) and SI (1000) standards.",
    {
      value: z.number().describe("The numeric value to convert"),
      from_unit: z
        .enum(["B", "KB", "MB", "GB", "TB", "PB"])
        .describe("Source unit"),
      binary: z
        .boolean()
        .default(true)
        .describe("Use binary (1024) instead of SI (1000) standard (default: true)"),
    },
    async ({ value, from_unit, binary }) => {
      const base = binary ? 1024 : 1000;
      const units = ["B", "KB", "MB", "GB", "TB", "PB"];
      const fromIndex = units.indexOf(from_unit);
      const bytes = value * Math.pow(base, fromIndex);
  
      const result: Record<string, string> = {
        standard: binary ? "Binary (1024)" : "SI (1000)",
      };
  
      for (let i = 0; i < units.length; i++) {
        const converted = bytes / Math.pow(base, i);
        result[units[i]] =
          converted >= 1
            ? converted.toLocaleString("en-US", { maximumFractionDigits: 4 })
            : converted.toExponential(4);
      }
  
      return {
        content: [
          { type: "text" as const, text: JSON.stringify(result, null, 2) },
        ],
      };
    }
  );