MCP Agent TypeScript Port

import { ToolHandler } from './types'; export const echoTool: ToolHandler = { name: 'echo', description: 'Echo back a provided message', inputSchema: { type: 'object', properties: { message: { type: 'string' } }, required: ['message'] }, async handler(args: Record<string, any>): Promise<{ message: string }> { return { message: String(args.message) }; } };