Sestavte server Code Mode MCP s jedním nástrojem

1. Nainstalujte Code Mode a závislosti MCP:

   npmyarnpnpmbun

   npm i @cloudflare/codemode agents @modelcontextprotocol/sdk zod

2. Přidejte vazbu Worker Loader a nodejs_compat příznak kompatibility:

   {
     "$schema": "./node_modules/wrangler/config-schema.json",
     "name": "codemode-mcp-server",
     "main": "src/server.ts",
     // Set this to today's date
     "compatibility_date": "2026-08-28",
     "compatibility_flags": [
       "nodejs_compat"
     ],
     "worker_loaders": [
       {
         "binding": "LOADER"
       }
     ]
   }

   name = "codemode-mcp-server"
   main = "src/server.ts"
   # Set this to today's date
   compatibility_date = "2026-08-28"
   compatibility_flags = ["nodejs_compat"]
   
   [[worker_loaders]]
   binding = "LOADER"

3. Vytvořte nadřazený server a předejte ho do codeMcpServer():

   src/server.js

   import { DynamicWorkerExecutor } from "@cloudflare/codemode";
   import { codeMcpServer } from "@cloudflare/codemode/mcp";
   import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
   import { createLegacyMcpHandler } from "agents/mcp";
   import { z } from "zod";
   
   function createOrderServer() {
   	const server = new McpServer({
   		name: "orders",
   		version: "1.0.0",
   	});
   
   	server.registerTool(
   		"get_order",
   		{
   			description: "Get an order by ID",
   			inputSchema: {
   				orderId: z.string().describe("Order ID"),
   			},
   		},
   		async ({ orderId }) => ({
   			structuredContent: {
   				id: orderId,
   				status: "processing",
   			},
   			content: [
   				{
   					type: "text",
   					text: JSON.stringify({ id: orderId, status: "processing" }),
   				},
   			],
   		}),
   	);
   
   	return server;
   }
   
   export default {
   	async fetch(request, env, ctx) {
   		const upstream = createOrderServer();
   		const executor = new DynamicWorkerExecutor({ loader: env.LOADER });
   		const server = await codeMcpServer({
   			server: upstream,
   			executor,
   		});
   
   		return createLegacyMcpHandler(server, { route: "/mcp" })(request, env, ctx);
   	},
   };

   src/server.ts

   import { DynamicWorkerExecutor } from "@cloudflare/codemode";
   import { codeMcpServer } from "@cloudflare/codemode/mcp";
   import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
   import { createLegacyMcpHandler } from "agents/mcp";
   import { z } from "zod";
   
   function createOrderServer() {
   	const server = new McpServer({
   		name: "orders",
   		version: "1.0.0",
   	});
   
   	server.registerTool(
   		"get_order",
   		{
   			description: "Get an order by ID",
   			inputSchema: {
   				orderId: z.string().describe("Order ID"),
   			},
   		},
   		async ({ orderId }) => ({
   			structuredContent: {
   				id: orderId,
   				status: "processing",
   			},
   			content: [
   				{
   					type: "text",
   					text: JSON.stringify({ id: orderId, status: "processing" }),
   				},
   			],
   		}),
   	);
   
   	return server;
   }
   
   export default {
   	async fetch(request, env, ctx): Promise<Response> {
   		const upstream = createOrderServer();
   		const executor = new DynamicWorkerExecutor({ loader: env.LOADER });
   		const server = await codeMcpServer({
   			server: upstream,
   			executor,
   		});
   
   		return createLegacyMcpHandler(server, { route: "/mcp" })(
   			request,
   			env,
   			ctx,
   		);
   	},
   } satisfies ExportedHandler<Env>;

4. Nasaďte Worker:

   npmyarnpnpm

   npx wrangler deploy

5. V klientovi MCP se připojte k https://<YOUR_WORKER>.<YOUR_SUBDOMAIN>.workers.dev/mcp. Ověřte, že server zpřístupňuje jeden nástroj s názvem code.

async () => {
	const order = await codemode.get_order({ orderId: "order-123" });
	return { id: order.id, status: order.status };
};