AI Meta MCP Server

Instructions

Implementation Reference

• src/index.ts:464-483 (handler)

  The handler function for the 'list_functions' tool. It logs the action, maps over customTools to create a list of function metadata (name, description, executionEnvironment, dates), and returns it as a JSON string in the MCP response format.

  async () => {
    console.error(`Listing all functions`);
    
    const functionList = Object.entries(customTools).map(([name, tool]) => ({
      name,
      description: tool.description,
      executionEnvironment: tool.executionEnvironment,
      createdAt: tool.createdAt,
      updatedAt: tool.updatedAt,
    }));
  
    return {
      content: [
        {
          type: "text",
          text: JSON.stringify(functionList, null, 2),
        },
      ],
    };
  }

• src/index.ts:460-484 (registration)

  The registration of the 'list_functions' tool using server.tool(), including name, description, empty input schema (no parameters), and the handler function.

  server.tool(
    "list_functions",
    "List all custom MCP functions",
    {},
    async () => {
      console.error(`Listing all functions`);
      
      const functionList = Object.entries(customTools).map(([name, tool]) => ({
        name,
        description: tool.description,
        executionEnvironment: tool.executionEnvironment,
        createdAt: tool.createdAt,
        updatedAt: tool.updatedAt,
      }));
  
      return {
        content: [
          {
            type: "text",
            text: JSON.stringify(functionList, null, 2),
          },
        ],
      };
    }
  );

• src/index.ts:463-463 (schema)

  The input schema for 'list_functions' tool, which is empty object indicating no input parameters required.

  {},