86 lines
2.2 KiB
TypeScript
86 lines
2.2 KiB
TypeScript
import {
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McpServer,
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type CallToolResult,
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type ReadResourceResult,
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} from "@modelcontextprotocol/server";
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import fs from "node:fs/promises";
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import path from "node:path";
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import {
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registerAppTool,
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registerAppResource,
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RESOURCE_MIME_TYPE,
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} from "@modelcontextprotocol/ext-apps/server";
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import { z } from "zod";
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// Works both from source (server.ts) and compiled (dist/server.js)
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const DIST_DIR = import.meta.filename.endsWith(".ts")
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? path.join(import.meta.dirname, "dist")
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: import.meta.dirname;
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const resourceUri = "ui://transcript/mcp-app.html";
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/**
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* Creates a new MCP server instance with tools and resources registered.
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*/
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export function createServer(): McpServer {
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const server = new McpServer({
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name: "Transcript Server",
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version: "1.0.0",
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});
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// Register the transcribe tool - opens a UI for live speech transcription
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registerAppTool(
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server,
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"transcribe",
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{
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title: "Transcribe Speech",
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description:
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"Opens a live speech transcription interface using the Web Speech API.",
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inputSchema: z.object({}),
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_meta: { ui: { resourceUri } },
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},
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async (): Promise<CallToolResult> => {
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return {
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content: [
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{
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type: "text",
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text: JSON.stringify({
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status: "ready",
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message: "Transcription UI opened. Speak into your microphone.",
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}),
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},
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],
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};
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},
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);
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// Register the UI resource
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registerAppResource(
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server,
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resourceUri,
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resourceUri,
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{ mimeType: RESOURCE_MIME_TYPE, description: "Transcript UI" },
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async (): Promise<ReadResourceResult> => {
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const html = await fs.readFile(
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path.join(DIST_DIR, "mcp-app.html"),
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"utf-8",
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);
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return {
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contents: [
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{
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uri: resourceUri,
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mimeType: RESOURCE_MIME_TYPE,
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text: html,
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_meta: {
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ui: {
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// Request microphone for Web Speech API, clipboard for copy button
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permissions: { microphone: {}, clipboardWrite: {} },
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},
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},
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},
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],
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};
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},
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);
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return server;
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}
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