Local Utilities MCP Server

Instructions

Implementation Reference

• src/mcp/node-version.ts:23-32 (handler)

  The anonymous async handler function for the 'get_node_version' tool. It invokes getNodeVersionInfo(), formats the result as JSON, and returns it in the MCP response format.

  async () => {
    // Error handling simplified, process.version/versions are generally safe
    const versionInfo = getNodeVersionInfo();
    return {
      content: [{
        type: "text",
        text: JSON.stringify(versionInfo, null, 2) // Keep JSON for structured data
      }]
    };
  }

• src/mcp/node-version.ts:19-34 (registration)

  The registration function that defines and registers the 'get_node_version' tool with the MCP server, including name, description, and handler.

  export function registerNodeVersionTool(server: McpServer): void {
    server.tool(
      "get_node_version",
      "Returns the Node.js version information of the environment running the MCP server.",
      async () => {
        // Error handling simplified, process.version/versions are generally safe
        const versionInfo = getNodeVersionInfo();
        return {
          content: [{
            type: "text",
            text: JSON.stringify(versionInfo, null, 2) // Keep JSON for structured data
          }]
        };
      }
    );
  } 

• src/mcp/node-version.ts:3-6 (schema)

  TypeScript interface defining the shape of the Node.js version information returned by the helper function.

  interface INodeVersionInfo {
    nodeVersion: string;
    details: NodeJS.ProcessVersions;
  }

• src/mcp/node-version.ts:12-17 (helper)

  Helper function that retrieves the current Node.js version string and detailed versions object from the process object.

  export function getNodeVersionInfo(): INodeVersionInfo { // Export for testing
    return {
      nodeVersion: process.version,
      details: process.versions,
    };
  }

• src/index.ts:22-22 (registration)

  Invocation of the registerNodeVersionTool function in the main server initialization, effectively registering the tool.

  registerNodeVersionTool(server);