Quickstart

import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { createFlow, END, MemoryKvStore, START } from "@waniwani/sdk/mcp";
import { z } from "zod";

const flow = createFlow({
  id: "hello",
  title: "Hello World",
  description: "Say hello and ask a question.",
  state: { name: z.string().describe("Your name") },
})
  .addNode({
    id: "ask",
    run: ({ interrupt }) =>
      interrupt({ name: { question: "What's your name?" } }),
  })
  .addNode({
    id: "greet",
    run: ({ state }) => ({ greeted: true }),
  })
  .addEdge(START, "ask")
  .addEdge("ask", "greet")
  .addEdge("greet", END)
  .compile({ store: new MemoryKvStore() });

const server = new McpServer({ name: "hello-mcp", version: "1.0.0" });
await flow.register(server);
await server.connect(new StdioServerTransport());