wehub-resource-sync
1655 lines
45 KiB
TypeScript
1655 lines
45 KiB
TypeScript
/**
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* MCP Server for UI Protocols Demo.
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* Registers 6 interactive apps with UI resources:
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* - Flights: Multi-step flight booking wizard
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* - Hotels: Multi-step hotel booking wizard
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* - Trading: Investment portfolio simulator
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* - Kanban: Task board with drag-drop
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* - Calculator: Expression evaluator (NEW)
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* - Todo: Task list manager (NEW)
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*/
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import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
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import express, { Request, Response } from "express";
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import { randomUUID } from "node:crypto";
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import { z } from "zod";
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import { StreamableHTTPServerTransport } from "@modelcontextprotocol/sdk/server/streamableHttp.js";
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import {
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CallToolResult,
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isInitializeRequest,
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ReadResourceResult,
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Resource,
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} from "@modelcontextprotocol/sdk/types.js";
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import { InMemoryEventStore } from "@modelcontextprotocol/sdk/examples/shared/inMemoryEventStore.js";
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import cors from "cors";
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import path from "node:path";
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import fs from "node:fs/promises";
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import { fileURLToPath } from "node:url";
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// Import flights logic
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import {
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searchFlights,
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selectFlight,
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selectSeats,
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createBooking,
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} from "./src/flights.js";
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// Import hotels logic
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import {
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searchHotels,
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selectHotel,
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selectRoom,
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createHotelBooking,
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} from "./src/hotels.js";
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// Import trading logic
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import {
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createPortfolio,
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executeTrade,
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refreshPrices,
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getStocks,
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getPortfolio,
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type Portfolio,
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type Sector,
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type TradeType,
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} from "./src/stocks.js";
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// Import kanban logic
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import {
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createBoard,
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addCard,
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updateCard,
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deleteCard,
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moveCard,
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Board,
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} from "./src/kanban.js";
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// Import calculator logic (NEW)
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import {
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createCalculator,
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inputCalculator,
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evaluateExpression,
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clearHistory,
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CalculatorState,
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} from "./src/calculator.js";
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// Import todo logic (NEW)
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import {
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createTodoList,
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addTodoItem,
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completeTodoItem,
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reopenTodoItem,
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deleteTodoItem,
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clearCompleted,
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TodoList,
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} from "./src/todo.js";
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// MCP Apps Extension protocol constant
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const RESOURCE_URI_META_KEY = "ui/resourceUri";
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const __filename = fileURLToPath(import.meta.url);
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const __dirname = path.dirname(__filename);
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// Store active portfolios by session
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const activePortfolios: Map<string, Portfolio> = new Map();
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// Store active boards by session
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const activeBoards: Map<string, Board> = new Map();
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// Store active calculators by session (NEW)
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const activeCalculators: Map<string, CalculatorState> = new Map();
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// Store active todo lists by session (NEW)
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const activeTodoLists: Map<string, TodoList> = new Map();
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// Load UI HTML file from apps/ directory
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const loadHtml = async (name: string): Promise<string> => {
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const htmlPath = path.join(__dirname, "apps", `${name}.html`);
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try {
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return await fs.readFile(htmlPath, "utf-8");
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} catch {
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// Return placeholder HTML if not found
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return `<!DOCTYPE html>
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<html>
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<head><title>${name}</title></head>
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<body>
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<div style="padding: 20px; font-family: system-ui;">
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<h2>${name} Loading...</h2>
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<p>App HTML not found at ${htmlPath}</p>
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</div>
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</body>
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</html>`;
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}
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};
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// Create the MCP server instance
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const getServer = async () => {
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const server = new McpServer(
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{
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name: "ui-protocols-mcp-server",
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version: "1.0.0",
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},
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{ capabilities: { logging: {} } },
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);
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// Load app HTML files
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const flightsAppHtml = await loadHtml("flights-app");
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const hotelsAppHtml = await loadHtml("hotels-app");
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const tradingAppHtml = await loadHtml("trading-app");
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const kanbanAppHtml = await loadHtml("kanban-app");
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const calculatorAppHtml = await loadHtml("calculator-app");
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const todoAppHtml = await loadHtml("todo-app");
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// Helper to register a resource
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const registerResource = (resource: Resource, htmlContent: string) => {
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server.registerResource(
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resource.name,
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resource.uri,
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resource,
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async (): Promise<ReadResourceResult> => ({
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contents: [
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{
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uri: resource.uri,
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mimeType: resource.mimeType,
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text: htmlContent,
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},
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],
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}),
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);
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return resource;
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};
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// ============================================
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// RESOURCE REGISTRATIONS
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// ============================================
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// Register the flights app UI resource
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const flightsResource = registerResource(
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{
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name: "flights-app-template",
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uri: "ui://flights/flights-app.html",
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title: "Airline Booking",
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description:
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"Interactive flight search and booking wizard with seat selection",
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mimeType: "text/html+mcp",
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},
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flightsAppHtml,
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);
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// Register the hotels app UI resource
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const hotelsResource = registerResource(
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{
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name: "hotels-app-template",
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uri: "ui://hotels/hotels-app.html",
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title: "Hotel Booking",
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description:
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"Interactive hotel search and booking wizard with room selection",
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mimeType: "text/html+mcp",
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},
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hotelsAppHtml,
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);
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// Register the trading app UI resource
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const tradingResource = registerResource(
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{
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name: "trading-app-template",
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uri: "ui://trading/trading-app.html",
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title: "Investment Simulator",
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description:
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"Interactive portfolio UI with holdings, charts, and trading",
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mimeType: "text/html+mcp",
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},
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tradingAppHtml,
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);
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// Register the kanban app UI resource
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const kanbanResource = registerResource(
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{
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name: "kanban-app-template",
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uri: "ui://kanban/kanban-app.html",
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title: "Kanban Board",
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description: "Interactive task board with drag-drop cards and columns",
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mimeType: "text/html+mcp",
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},
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kanbanAppHtml,
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);
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// Register the calculator app UI resource (NEW)
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const calculatorResource = registerResource(
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{
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name: "calculator-app-template",
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uri: "ui://calculator/calculator-app.html",
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title: "Calculator",
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description: "Interactive calculator with memory and history",
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mimeType: "text/html+mcp",
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},
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calculatorAppHtml,
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);
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// Register the todo app UI resource (NEW)
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const todoResource = registerResource(
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{
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name: "todo-app-template",
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uri: "ui://todo/todo-app.html",
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title: "Todo List",
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description: "Interactive task manager with priorities and filters",
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mimeType: "text/html+mcp",
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},
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todoAppHtml,
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);
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// ============================================
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// AIRLINE BOOKING TOOLS
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// ============================================
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// Register search-flights tool (main tool with UI)
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server.registerTool(
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"search-flights",
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{
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title: "Search Flights",
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description:
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"Searches for available flights between two airports. Returns an interactive booking wizard UI.",
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inputSchema: {
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origin: z
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.string()
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.describe("Origin airport code (e.g., JFK, LAX, LHR)"),
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destination: z.string().describe("Destination airport code"),
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departureDate: z
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.string()
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.describe("Departure date in YYYY-MM-DD format"),
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passengers: z
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.number()
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.min(1)
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.max(9)
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.describe("Number of passengers (1-9)"),
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cabinClass: z
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.enum(["economy", "business", "first"])
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.optional()
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.describe("Cabin class (default: economy)"),
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},
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_meta: {
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[RESOURCE_URI_META_KEY]: flightsResource.uri,
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},
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},
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async ({
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origin,
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destination,
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departureDate,
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passengers,
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cabinClass,
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}): Promise<CallToolResult> => {
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try {
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const search = searchFlights({
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origin,
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destination,
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departureDate,
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passengers,
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cabinClass: cabinClass || "economy",
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});
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const flightSummary = search.flights
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.slice(0, 3)
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.map(
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(f) =>
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`${f.airline.code}${f.flightNumber.slice(2)} ${f.departureTime}-${f.arrivalTime} $${f.price}`,
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)
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.join(", ");
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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: `Found ${search.flights.length} flights from ${origin} to ${destination} on ${departureDate}:\n\n${flightSummary}...`,
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},
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],
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structuredContent: {
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search,
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summary: {
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flightCount: search.flights.length,
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origin,
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destination,
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date: departureDate,
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passengers,
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},
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},
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};
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} catch (error) {
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return {
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content: [
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{ type: "text", text: `Error: ${(error as Error).message}` },
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],
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structuredContent: {
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success: false,
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error: (error as Error).message,
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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 select-flight tool (helper for UI)
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server.registerTool(
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"select-flight",
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{
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title: "Select Flight",
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description:
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"Selects a flight from search results and returns the seat map",
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inputSchema: {
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searchId: z.string().describe("The search session ID"),
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flightId: z.string().describe("The flight ID to select"),
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},
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},
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async ({ searchId, flightId }): Promise<CallToolResult> => {
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const result = selectFlight(searchId, flightId);
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if (!result) {
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return {
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content: [{ type: "text", text: "Flight or search not found." }],
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structuredContent: {
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success: false,
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error: "Flight or search not found",
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},
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};
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}
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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: `Selected ${result.flight.airline.name} ${result.flight.flightNumber} (${result.flight.departureTime}-${result.flight.arrivalTime}). Please choose your seats.`,
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},
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],
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structuredContent: {
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success: true,
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flight: result.flight,
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seatMap: result.seatMap,
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},
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};
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},
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);
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// Register select-seats tool (helper for UI)
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server.registerTool(
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"select-seats",
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{
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title: "Select Seats",
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description: "Selects seats for the chosen flight",
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inputSchema: {
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searchId: z.string().describe("The search session ID"),
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flightId: z.string().describe("The flight ID"),
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seats: z
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.array(z.string())
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.describe("Array of seat IDs (e.g., ['12A', '12B'])"),
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},
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},
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async ({ searchId, flightId, seats }): Promise<CallToolResult> => {
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const result = selectSeats(searchId, flightId, seats);
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return {
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content: [{ type: "text", text: result.message }],
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structuredContent: {
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success: result.success,
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selectedSeats: result.selectedSeats,
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totalSeatFee: result.totalSeatFee,
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error: result.success ? undefined : result.message,
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},
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};
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},
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);
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// Register book-flight tool (helper for UI)
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server.registerTool(
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"book-flight",
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{
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title: "Book Flight",
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description: "Completes the flight booking with passenger details",
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inputSchema: {
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searchId: z.string().describe("The search session ID"),
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passengers: z
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.array(
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z.object({
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name: z.string().describe("Passenger full name"),
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email: z.string().describe("Passenger email"),
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phone: z.string().describe("Passenger phone number"),
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}),
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)
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.describe("Passenger information"),
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},
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},
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async ({ searchId, passengers }): Promise<CallToolResult> => {
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const result = createBooking(searchId, passengers);
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if (!result.success || !result.booking) {
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return {
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content: [{ type: "text", text: result.message }],
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structuredContent: { success: false, error: result.message },
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};
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}
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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: `Booking confirmed! Confirmation: ${result.booking.confirmationNumber}\n\nFlight: ${result.booking.flight.airline.name} ${result.booking.flight.flightNumber}\nRoute: ${result.booking.flight.origin.code} → ${result.booking.flight.destination.code}\nSeats: ${result.booking.seats.join(", ")}\nTotal: $${result.booking.totalPrice.toFixed(2)}`,
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},
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],
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structuredContent: {
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success: true,
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booking: result.booking,
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},
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};
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},
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);
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// ============================================
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// HOTEL BOOKING TOOLS
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// ============================================
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// Register search-hotels tool (main tool with UI)
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server.registerTool(
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"search-hotels",
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{
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title: "Search Hotels",
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description:
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"Searches for available hotels in a city. Returns an interactive booking wizard UI.",
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inputSchema: {
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city: z.string().describe("City name (e.g., Paris, New York, Tokyo)"),
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checkIn: z.string().describe("Check-in date in YYYY-MM-DD format"),
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checkOut: z.string().describe("Check-out date in YYYY-MM-DD format"),
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guests: z.number().min(1).max(6).describe("Number of guests (1-6)"),
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rooms: z
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.number()
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.min(1)
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.max(4)
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.optional()
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.describe("Number of rooms needed (default: 1)"),
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},
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_meta: {
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[RESOURCE_URI_META_KEY]: hotelsResource.uri,
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},
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},
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async ({
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city,
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checkIn,
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checkOut,
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guests,
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rooms,
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}): Promise<CallToolResult> => {
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try {
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const search = searchHotels({
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city,
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checkIn,
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checkOut,
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guests,
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rooms: rooms || 1,
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});
|
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// Calculate nights for display
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const checkInDate = new Date(checkIn);
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const checkOutDate = new Date(checkOut);
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const nights = Math.ceil(
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(checkOutDate.getTime() - checkInDate.getTime()) /
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(1000 * 60 * 60 * 24),
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);
|
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const hotelSummary = search.hotels
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.slice(0, 3)
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.map(
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(h) => `${h.name} (${h.rating}/10) from $${h.priceRange.min}/night`,
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)
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.join("\n");
|
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|
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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: `Found ${search.hotels.length} hotels in ${city} for ${nights} night(s):\n\n${hotelSummary}`,
|
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},
|
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],
|
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structuredContent: {
|
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search,
|
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summary: {
|
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hotelCount: search.hotels.length,
|
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city,
|
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checkIn,
|
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checkOut,
|
|
nights,
|
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guests,
|
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},
|
|
},
|
|
};
|
|
} catch (error) {
|
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return {
|
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content: [
|
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{ type: "text", text: `Error: ${(error as Error).message}` },
|
|
],
|
|
structuredContent: {
|
|
success: false,
|
|
error: (error as Error).message,
|
|
},
|
|
};
|
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}
|
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},
|
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);
|
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|
|
// Register select-hotel tool (helper for UI)
|
|
server.registerTool(
|
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"select-hotel",
|
|
{
|
|
title: "Select Hotel",
|
|
description:
|
|
"Selects a hotel from search results and returns available rooms",
|
|
inputSchema: {
|
|
searchId: z.string().describe("The search session ID"),
|
|
hotelId: z.string().describe("The hotel ID to select"),
|
|
},
|
|
},
|
|
async ({ searchId, hotelId }): Promise<CallToolResult> => {
|
|
const result = selectHotel(searchId, hotelId);
|
|
|
|
if (!result) {
|
|
return {
|
|
content: [{ type: "text", text: "Hotel or search not found." }],
|
|
structuredContent: {
|
|
success: false,
|
|
error: "Hotel or search not found",
|
|
},
|
|
};
|
|
}
|
|
|
|
const roomSummary = result.rooms
|
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.map((r) => `${r.name}: $${r.pricePerNight}/night`)
|
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.join(", ");
|
|
|
|
return {
|
|
content: [
|
|
{
|
|
type: "text",
|
|
text: `Selected ${result.hotel.name} (${result.hotel.rating}/10). Available rooms: ${roomSummary}`,
|
|
},
|
|
],
|
|
structuredContent: {
|
|
success: true,
|
|
hotel: result.hotel,
|
|
rooms: result.rooms,
|
|
},
|
|
};
|
|
},
|
|
);
|
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|
|
// Register select-room tool (helper for UI)
|
|
server.registerTool(
|
|
"select-room",
|
|
{
|
|
title: "Select Room",
|
|
description: "Selects a room type for the booking",
|
|
inputSchema: {
|
|
searchId: z.string().describe("The search session ID"),
|
|
roomId: z.string().describe("The room type ID"),
|
|
},
|
|
},
|
|
async ({ searchId, roomId }): Promise<CallToolResult> => {
|
|
const result = selectRoom(searchId, roomId);
|
|
|
|
if (!result) {
|
|
return {
|
|
content: [
|
|
{
|
|
type: "text",
|
|
text: "Room selection failed. Hotel not selected or room not found.",
|
|
},
|
|
],
|
|
structuredContent: { success: false, error: "Room selection failed" },
|
|
};
|
|
}
|
|
|
|
return {
|
|
content: [
|
|
{
|
|
type: "text",
|
|
text: `Selected ${result.room.name} - $${result.priceBreakdown.perNight}/night for ${result.priceBreakdown.nights} night(s). Total: $${result.priceBreakdown.total}`,
|
|
},
|
|
],
|
|
structuredContent: {
|
|
success: true,
|
|
room: result.room,
|
|
priceBreakdown: result.priceBreakdown,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register book-hotel tool (helper for UI)
|
|
server.registerTool(
|
|
"book-hotel",
|
|
{
|
|
title: "Book Hotel",
|
|
description: "Completes the hotel booking with guest details",
|
|
inputSchema: {
|
|
searchId: z.string().describe("The search session ID"),
|
|
guests: z
|
|
.array(
|
|
z.object({
|
|
firstName: z.string().describe("Guest first name"),
|
|
lastName: z.string().describe("Guest last name"),
|
|
email: z.string().describe("Guest email"),
|
|
phone: z.string().describe("Guest phone"),
|
|
}),
|
|
)
|
|
.describe("Guest information"),
|
|
},
|
|
},
|
|
async ({ searchId, guests }): Promise<CallToolResult> => {
|
|
const result = createHotelBooking(searchId, guests);
|
|
|
|
if (!result.success || !result.booking) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
return {
|
|
content: [
|
|
{
|
|
type: "text",
|
|
text: `Booking confirmed! Confirmation: ${result.booking.confirmationNumber}\n\nHotel: ${result.booking.hotel.name}\nRoom: ${result.booking.room.name}\nDates: ${result.booking.checkIn} to ${result.booking.checkOut} (${result.booking.nights} nights)\nTotal: $${result.booking.totalPrice.toFixed(2)}`,
|
|
},
|
|
],
|
|
structuredContent: {
|
|
success: true,
|
|
booking: result.booking,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// ============================================
|
|
// INVESTMENT SIMULATOR TOOLS
|
|
// ============================================
|
|
|
|
// Register create-portfolio tool (main tool with UI)
|
|
server.registerTool(
|
|
"create-portfolio",
|
|
{
|
|
title: "Create Portfolio",
|
|
description:
|
|
"Creates an investment portfolio based on initial balance, risk tolerance, and focus area. Returns an interactive UI for trading.",
|
|
inputSchema: {
|
|
initialBalance: z
|
|
.number()
|
|
.min(1000)
|
|
.max(1000000)
|
|
.describe("Starting cash balance (1000-1000000)"),
|
|
riskTolerance: z
|
|
.enum(["conservative", "moderate", "aggressive"])
|
|
.describe("Risk tolerance level"),
|
|
focus: z
|
|
.enum([
|
|
"technology",
|
|
"healthcare",
|
|
"finance",
|
|
"consumer",
|
|
"energy",
|
|
"industrial",
|
|
])
|
|
.optional()
|
|
.describe("Portfolio focus area (sector)"),
|
|
},
|
|
_meta: {
|
|
[RESOURCE_URI_META_KEY]: tradingResource.uri,
|
|
},
|
|
},
|
|
async ({
|
|
initialBalance,
|
|
riskTolerance,
|
|
focus,
|
|
}): Promise<CallToolResult> => {
|
|
// Create the portfolio
|
|
const portfolio = createPortfolio({
|
|
initialBalance,
|
|
riskTolerance,
|
|
focus: focus as Sector | undefined,
|
|
});
|
|
|
|
// Get available stocks for the UI
|
|
const allStocks = getStocks();
|
|
const holdingSymbols = new Set(portfolio.holdings.map((h) => h.symbol));
|
|
const availableStocks = allStocks.filter(
|
|
(s) => !holdingSymbols.has(s.symbol),
|
|
);
|
|
|
|
// Store portfolio for later trades
|
|
activePortfolios.set(portfolio.id, portfolio);
|
|
|
|
// Build holdings summary
|
|
const holdingsSummary = portfolio.holdings
|
|
.slice(0, 3)
|
|
.map(
|
|
(h: { symbol: string; shares: number }) =>
|
|
`${h.symbol}: ${h.shares} shares`,
|
|
)
|
|
.join(", ");
|
|
|
|
const plSign = portfolio.totalGain >= 0 ? "+" : "";
|
|
|
|
return {
|
|
content: [
|
|
{
|
|
type: "text",
|
|
text: `Created ${focus || "diversified"} portfolio ($${initialBalance.toLocaleString()}, ${riskTolerance} risk):\n\nTotal Value: $${portfolio.totalValue.toLocaleString()}\nP/L: ${plSign}$${portfolio.totalGain.toFixed(2)}\nCash: $${portfolio.cashBalance.toLocaleString()}\n\nHoldings: ${holdingsSummary}...`,
|
|
},
|
|
],
|
|
structuredContent: {
|
|
portfolio,
|
|
availableStocks,
|
|
summary: {
|
|
totalValue: portfolio.totalValue,
|
|
gain: portfolio.totalGain,
|
|
gainPercent: portfolio.totalGainPercent,
|
|
cash: portfolio.cashBalance,
|
|
holdingsCount: portfolio.holdings.length,
|
|
},
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register execute-trade tool (helper for UI callbacks)
|
|
server.registerTool(
|
|
"execute-trade",
|
|
{
|
|
title: "Execute Trade",
|
|
description: "Buys or sells shares of a stock in the portfolio",
|
|
inputSchema: {
|
|
portfolioId: z.string().describe("The portfolio ID"),
|
|
symbol: z.string().describe("Stock symbol to trade"),
|
|
action: z.enum(["buy", "sell"]).describe("Trade action"),
|
|
quantity: z.number().min(1).describe("Number of shares"),
|
|
},
|
|
},
|
|
async ({
|
|
portfolioId,
|
|
symbol,
|
|
action,
|
|
quantity,
|
|
}): Promise<CallToolResult> => {
|
|
const result = executeTrade(
|
|
portfolioId,
|
|
action as TradeType,
|
|
symbol,
|
|
quantity,
|
|
);
|
|
|
|
if (!result.success) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
// Update stored portfolio
|
|
if (result.portfolio) {
|
|
activePortfolios.set(portfolioId, result.portfolio);
|
|
}
|
|
|
|
// Get available stocks for the UI
|
|
const allStocks = getStocks();
|
|
const holdingSymbols = new Set(
|
|
result.portfolio?.holdings.map((h) => h.symbol) || [],
|
|
);
|
|
const availableStocks = allStocks.filter(
|
|
(s) => !holdingSymbols.has(s.symbol),
|
|
);
|
|
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: {
|
|
success: true,
|
|
trade: result.trade,
|
|
portfolio: result.portfolio,
|
|
availableStocks,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register refresh-prices tool (helper for UI)
|
|
server.registerTool(
|
|
"refresh-prices",
|
|
{
|
|
title: "Refresh Prices",
|
|
description: "Simulates market movement by updating stock prices",
|
|
inputSchema: {
|
|
portfolioId: z.string().describe("The portfolio ID"),
|
|
},
|
|
},
|
|
async ({ portfolioId }): Promise<CallToolResult> => {
|
|
const portfolio = refreshPrices(portfolioId);
|
|
|
|
if (!portfolio) {
|
|
return {
|
|
content: [
|
|
{ type: "text", text: `Portfolio ${portfolioId} not found.` },
|
|
],
|
|
structuredContent: { success: false, error: "Portfolio not found" },
|
|
};
|
|
}
|
|
|
|
// Update stored portfolio
|
|
activePortfolios.set(portfolioId, portfolio);
|
|
|
|
// Get available stocks for the UI
|
|
const allStocks = getStocks();
|
|
const holdingSymbols = new Set(portfolio.holdings.map((h) => h.symbol));
|
|
const availableStocks = allStocks.filter(
|
|
(s) => !holdingSymbols.has(s.symbol),
|
|
);
|
|
|
|
const plSign = portfolio.totalGain >= 0 ? "+" : "";
|
|
|
|
return {
|
|
content: [
|
|
{
|
|
type: "text",
|
|
text: `Prices refreshed. Portfolio: $${portfolio.totalValue.toLocaleString()} (${plSign}$${portfolio.totalGain.toFixed(2)})`,
|
|
},
|
|
],
|
|
structuredContent: {
|
|
success: true,
|
|
portfolio,
|
|
availableStocks,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// ============================================
|
|
// KANBAN BOARD TOOLS
|
|
// ============================================
|
|
|
|
// Register create-board tool (main tool with UI)
|
|
server.registerTool(
|
|
"create-board",
|
|
{
|
|
title: "Create Kanban Board",
|
|
description:
|
|
"Creates a kanban board for project management with customizable columns and cards. Returns an interactive drag-drop UI.",
|
|
inputSchema: {
|
|
projectName: z.string().describe("Name for the project board"),
|
|
template: z
|
|
.enum(["blank", "software", "marketing", "personal"])
|
|
.describe(
|
|
"Board template with pre-configured columns and sample cards",
|
|
),
|
|
},
|
|
_meta: {
|
|
[RESOURCE_URI_META_KEY]: kanbanResource.uri,
|
|
},
|
|
},
|
|
async ({ projectName, template }): Promise<CallToolResult> => {
|
|
// Create the board
|
|
const board = createBoard(projectName, template);
|
|
|
|
// Store board for later operations
|
|
activeBoards.set(board.id, board);
|
|
|
|
const totalCards = board.columns.reduce(
|
|
(sum, c) => sum + c.cards.length,
|
|
0,
|
|
);
|
|
|
|
return {
|
|
content: [
|
|
{
|
|
type: "text",
|
|
text: `Created "${projectName}" board (${template} template):\n\nColumns: ${board.columns.map((c) => c.name).join(", ")}\nTotal cards: ${totalCards}`,
|
|
},
|
|
],
|
|
structuredContent: {
|
|
board,
|
|
summary: {
|
|
name: board.name,
|
|
columnsCount: board.columns.length,
|
|
cardsCount: totalCards,
|
|
template,
|
|
},
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register move-card tool (helper for drag-drop)
|
|
server.registerTool(
|
|
"move-card",
|
|
{
|
|
title: "Move Card",
|
|
description: "Moves a card to a different column on the board",
|
|
inputSchema: {
|
|
boardId: z.string().describe("The board ID"),
|
|
cardId: z.string().describe("The card ID to move"),
|
|
targetColumnId: z.string().describe("Target column ID"),
|
|
position: z
|
|
.number()
|
|
.optional()
|
|
.describe("Position in column (default: end)"),
|
|
},
|
|
},
|
|
async ({
|
|
boardId,
|
|
cardId,
|
|
targetColumnId,
|
|
position,
|
|
}): Promise<CallToolResult> => {
|
|
const result = moveCard(boardId, cardId, targetColumnId, position);
|
|
|
|
if (!result.success) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
// Update stored board
|
|
if (result.board) {
|
|
activeBoards.set(boardId, result.board);
|
|
}
|
|
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: {
|
|
success: true,
|
|
board: result.board,
|
|
card: result.card,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register add-card tool (helper for UI)
|
|
server.registerTool(
|
|
"add-card",
|
|
{
|
|
title: "Add Card",
|
|
description: "Adds a new card to a column",
|
|
inputSchema: {
|
|
boardId: z.string().describe("The board ID"),
|
|
columnId: z.string().describe("The column ID"),
|
|
title: z.string().describe("Card title"),
|
|
description: z.string().optional().describe("Card description"),
|
|
priority: z
|
|
.enum(["low", "medium", "high"])
|
|
.optional()
|
|
.describe("Card priority"),
|
|
},
|
|
},
|
|
async ({
|
|
boardId,
|
|
columnId,
|
|
title,
|
|
description,
|
|
priority,
|
|
}): Promise<CallToolResult> => {
|
|
const result = addCard(boardId, columnId, {
|
|
title,
|
|
description,
|
|
priority: priority || "medium",
|
|
tags: [],
|
|
});
|
|
|
|
if (!result.success) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
// Update stored board
|
|
if (result.board) {
|
|
activeBoards.set(boardId, result.board);
|
|
}
|
|
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: {
|
|
success: true,
|
|
board: result.board,
|
|
card: result.card,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register update-card tool (helper for UI)
|
|
server.registerTool(
|
|
"update-card",
|
|
{
|
|
title: "Update Card",
|
|
description: "Updates an existing card's title, description, or priority",
|
|
inputSchema: {
|
|
boardId: z.string().describe("The board ID"),
|
|
cardId: z.string().describe("The card ID"),
|
|
updates: z
|
|
.object({
|
|
title: z.string().optional(),
|
|
description: z.string().optional(),
|
|
priority: z.enum(["low", "medium", "high"]).optional(),
|
|
})
|
|
.describe("Fields to update"),
|
|
},
|
|
},
|
|
async ({ boardId, cardId, updates }): Promise<CallToolResult> => {
|
|
const result = updateCard(boardId, cardId, updates);
|
|
|
|
if (!result.success) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
// Update stored board
|
|
if (result.board) {
|
|
activeBoards.set(boardId, result.board);
|
|
}
|
|
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: {
|
|
success: true,
|
|
board: result.board,
|
|
card: result.card,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register delete-card tool (helper for UI)
|
|
server.registerTool(
|
|
"delete-card",
|
|
{
|
|
title: "Delete Card",
|
|
description: "Removes a card from the board",
|
|
inputSchema: {
|
|
boardId: z.string().describe("The board ID"),
|
|
cardId: z.string().describe("The card ID to delete"),
|
|
},
|
|
},
|
|
async ({ boardId, cardId }): Promise<CallToolResult> => {
|
|
const result = deleteCard(boardId, cardId);
|
|
|
|
if (!result.success) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
// Update stored board
|
|
if (result.board) {
|
|
activeBoards.set(boardId, result.board);
|
|
}
|
|
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: {
|
|
success: true,
|
|
board: result.board,
|
|
deletedCard: result.card,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// ============================================
|
|
// CALCULATOR TOOLS (NEW)
|
|
// ============================================
|
|
|
|
// Register open-calculator tool (main tool with UI)
|
|
server.registerTool(
|
|
"open-calculator",
|
|
{
|
|
title: "Open Calculator",
|
|
description:
|
|
"Opens an interactive calculator with memory and history features.",
|
|
inputSchema: {},
|
|
_meta: {
|
|
[RESOURCE_URI_META_KEY]: calculatorResource.uri,
|
|
},
|
|
},
|
|
async (): Promise<CallToolResult> => {
|
|
// Create a new calculator session
|
|
const state = createCalculator();
|
|
|
|
// Store for later operations
|
|
activeCalculators.set(state.id, state);
|
|
|
|
return {
|
|
content: [
|
|
{
|
|
type: "text",
|
|
text: `Calculator opened. Ready for calculations.`,
|
|
},
|
|
],
|
|
structuredContent: {
|
|
state,
|
|
summary: {
|
|
calculatorId: state.id,
|
|
display: state.display,
|
|
memorySet: state.memory !== 0,
|
|
},
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register input-calculator tool (helper for UI button presses)
|
|
server.registerTool(
|
|
"input-calculator",
|
|
{
|
|
title: "Input to Calculator",
|
|
description:
|
|
"Sends input to the calculator (digit, operator, or command)",
|
|
inputSchema: {
|
|
calculatorId: z.string().describe("The calculator session ID"),
|
|
input: z
|
|
.string()
|
|
.describe(
|
|
"Input: digit (0-9), operator (+,-,*,/), decimal (.), equals (=), clear (C), etc.",
|
|
),
|
|
},
|
|
},
|
|
async ({ calculatorId, input }): Promise<CallToolResult> => {
|
|
const result = inputCalculator(calculatorId, input);
|
|
|
|
if (!result.success) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
// Update stored state
|
|
if (result.state) {
|
|
activeCalculators.set(calculatorId, result.state);
|
|
}
|
|
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: {
|
|
success: true,
|
|
state: result.state,
|
|
result: result.result,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register evaluate-expression tool (helper for direct evaluation)
|
|
server.registerTool(
|
|
"evaluate-expression",
|
|
{
|
|
title: "Evaluate Expression",
|
|
description: "Evaluates a mathematical expression directly",
|
|
inputSchema: {
|
|
calculatorId: z.string().describe("The calculator session ID"),
|
|
expression: z
|
|
.string()
|
|
.describe("Mathematical expression (e.g., '2+2', '100*5/2')"),
|
|
},
|
|
},
|
|
async ({ calculatorId, expression }): Promise<CallToolResult> => {
|
|
const result = evaluateExpression(calculatorId, expression);
|
|
|
|
if (!result.success) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
// Update stored state
|
|
if (result.state) {
|
|
activeCalculators.set(calculatorId, result.state);
|
|
}
|
|
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: {
|
|
success: true,
|
|
state: result.state,
|
|
result: result.result,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register clear-calculator-history tool (helper for UI)
|
|
server.registerTool(
|
|
"clear-calculator-history",
|
|
{
|
|
title: "Clear Calculator History",
|
|
description: "Clears the calculation history",
|
|
inputSchema: {
|
|
calculatorId: z.string().describe("The calculator session ID"),
|
|
},
|
|
},
|
|
async ({ calculatorId }): Promise<CallToolResult> => {
|
|
const result = clearHistory(calculatorId);
|
|
|
|
if (!result.success) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
// Update stored state
|
|
if (result.state) {
|
|
activeCalculators.set(calculatorId, result.state);
|
|
}
|
|
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: {
|
|
success: true,
|
|
state: result.state,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// ============================================
|
|
// TODO LIST TOOLS (NEW)
|
|
// ============================================
|
|
|
|
// Register open-todo-list tool (main tool with UI)
|
|
server.registerTool(
|
|
"open-todo-list",
|
|
{
|
|
title: "Open Todo List",
|
|
description:
|
|
"Opens an interactive todo list for task management with priorities and filters.",
|
|
inputSchema: {
|
|
name: z
|
|
.string()
|
|
.optional()
|
|
.describe("Name for the todo list (default: 'My Tasks')"),
|
|
},
|
|
_meta: {
|
|
[RESOURCE_URI_META_KEY]: todoResource.uri,
|
|
},
|
|
},
|
|
async ({ name }): Promise<CallToolResult> => {
|
|
// Create a new todo list
|
|
const list = createTodoList(name || "My Tasks");
|
|
|
|
// Store for later operations
|
|
activeTodoLists.set(list.id, list);
|
|
|
|
return {
|
|
content: [
|
|
{
|
|
type: "text",
|
|
text: `Todo list "${list.name}" created. Ready to add tasks.`,
|
|
},
|
|
],
|
|
structuredContent: {
|
|
list,
|
|
summary: {
|
|
listId: list.id,
|
|
name: list.name,
|
|
itemCount: list.items.length,
|
|
},
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register add-todo-item tool (helper for UI)
|
|
server.registerTool(
|
|
"add-todo-item",
|
|
{
|
|
title: "Add Todo Item",
|
|
description: "Adds a new item to the todo list",
|
|
inputSchema: {
|
|
listId: z.string().describe("The todo list ID"),
|
|
title: z.string().describe("Task title"),
|
|
description: z.string().optional().describe("Task description"),
|
|
priority: z
|
|
.enum(["low", "medium", "high"])
|
|
.optional()
|
|
.describe("Priority level"),
|
|
dueDate: z
|
|
.string()
|
|
.optional()
|
|
.describe("Due date in YYYY-MM-DD format"),
|
|
tags: z.array(z.string()).optional().describe("Tags for the task"),
|
|
},
|
|
},
|
|
async ({
|
|
listId,
|
|
title,
|
|
description,
|
|
priority,
|
|
dueDate,
|
|
tags,
|
|
}): Promise<CallToolResult> => {
|
|
const result = addTodoItem(listId, {
|
|
title,
|
|
description,
|
|
priority,
|
|
dueDate,
|
|
tags,
|
|
});
|
|
|
|
if (!result.success) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
// Update stored list
|
|
if (result.list) {
|
|
activeTodoLists.set(listId, result.list);
|
|
}
|
|
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: {
|
|
success: true,
|
|
list: result.list,
|
|
item: result.item,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register complete-todo-item tool (helper for UI)
|
|
server.registerTool(
|
|
"complete-todo-item",
|
|
{
|
|
title: "Complete Todo Item",
|
|
description: "Marks a todo item as completed",
|
|
inputSchema: {
|
|
listId: z.string().describe("The todo list ID"),
|
|
itemId: z.string().describe("The item ID to complete"),
|
|
},
|
|
},
|
|
async ({ listId, itemId }): Promise<CallToolResult> => {
|
|
const result = completeTodoItem(listId, itemId);
|
|
|
|
if (!result.success) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
// Update stored list
|
|
if (result.list) {
|
|
activeTodoLists.set(listId, result.list);
|
|
}
|
|
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: {
|
|
success: true,
|
|
list: result.list,
|
|
item: result.item,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register reopen-todo-item tool (helper for UI)
|
|
server.registerTool(
|
|
"reopen-todo-item",
|
|
{
|
|
title: "Reopen Todo Item",
|
|
description: "Reopens a completed todo item",
|
|
inputSchema: {
|
|
listId: z.string().describe("The todo list ID"),
|
|
itemId: z.string().describe("The item ID to reopen"),
|
|
},
|
|
},
|
|
async ({ listId, itemId }): Promise<CallToolResult> => {
|
|
const result = reopenTodoItem(listId, itemId);
|
|
|
|
if (!result.success) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
// Update stored list
|
|
if (result.list) {
|
|
activeTodoLists.set(listId, result.list);
|
|
}
|
|
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: {
|
|
success: true,
|
|
list: result.list,
|
|
item: result.item,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register delete-todo-item tool (helper for UI)
|
|
server.registerTool(
|
|
"delete-todo-item",
|
|
{
|
|
title: "Delete Todo Item",
|
|
description: "Removes an item from the todo list",
|
|
inputSchema: {
|
|
listId: z.string().describe("The todo list ID"),
|
|
itemId: z.string().describe("The item ID to delete"),
|
|
},
|
|
},
|
|
async ({ listId, itemId }): Promise<CallToolResult> => {
|
|
const result = deleteTodoItem(listId, itemId);
|
|
|
|
if (!result.success) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
// Update stored list
|
|
if (result.list) {
|
|
activeTodoLists.set(listId, result.list);
|
|
}
|
|
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: {
|
|
success: true,
|
|
list: result.list,
|
|
deletedItem: result.item,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
// Register clear-completed-todos tool (helper for UI)
|
|
server.registerTool(
|
|
"clear-completed-todos",
|
|
{
|
|
title: "Clear Completed Todos",
|
|
description: "Removes all completed items from the todo list",
|
|
inputSchema: {
|
|
listId: z.string().describe("The todo list ID"),
|
|
},
|
|
},
|
|
async ({ listId }): Promise<CallToolResult> => {
|
|
const result = clearCompleted(listId);
|
|
|
|
if (!result.success) {
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: { success: false, error: result.message },
|
|
};
|
|
}
|
|
|
|
// Update stored list
|
|
if (result.list) {
|
|
activeTodoLists.set(listId, result.list);
|
|
}
|
|
|
|
return {
|
|
content: [{ type: "text", text: result.message }],
|
|
structuredContent: {
|
|
success: true,
|
|
list: result.list,
|
|
},
|
|
};
|
|
},
|
|
);
|
|
|
|
return server;
|
|
};
|
|
|
|
// ============================================
|
|
// EXPRESS SERVER SETUP
|
|
// ============================================
|
|
|
|
const PORT = process.env.PORT ? parseInt(process.env.PORT, 10) : 3001;
|
|
|
|
const app = express();
|
|
app.use(express.json());
|
|
app.use(
|
|
cors({
|
|
origin: "*",
|
|
exposedHeaders: ["Mcp-Session-Id"],
|
|
}),
|
|
);
|
|
|
|
// Session management for MCP connections
|
|
const transports: { [sessionId: string]: StreamableHTTPServerTransport } = {};
|
|
|
|
// MCP POST handler - main entry point for MCP requests
|
|
const mcpPostHandler = async (req: Request, res: Response) => {
|
|
const sessionId = req.headers["mcp-session-id"] as string | undefined;
|
|
|
|
try {
|
|
let transport: StreamableHTTPServerTransport;
|
|
|
|
if (sessionId && transports[sessionId]) {
|
|
// Existing session
|
|
transport = transports[sessionId];
|
|
} else if (!sessionId && isInitializeRequest(req.body)) {
|
|
// New session initialization - eventStore enables resumability for MCP Apps
|
|
const eventStore = new InMemoryEventStore();
|
|
transport = new StreamableHTTPServerTransport({
|
|
sessionIdGenerator: () => randomUUID(),
|
|
eventStore,
|
|
onsessioninitialized: (sid) => {
|
|
console.log(`[MCP] Session initialized: ${sid}`);
|
|
transports[sid] = transport;
|
|
},
|
|
});
|
|
|
|
transport.onclose = () => {
|
|
const sid = transport.sessionId;
|
|
if (sid && transports[sid]) {
|
|
console.log(`[MCP] Session closed: ${sid}`);
|
|
delete transports[sid];
|
|
}
|
|
};
|
|
|
|
const server = await getServer();
|
|
await server.connect(transport);
|
|
await transport.handleRequest(req, res, req.body);
|
|
return;
|
|
} else {
|
|
// Invalid request
|
|
res.status(400).json({
|
|
jsonrpc: "2.0",
|
|
error: { code: -32000, message: "Bad Request: No valid session ID" },
|
|
id: null,
|
|
});
|
|
return;
|
|
}
|
|
|
|
await transport.handleRequest(req, res, req.body);
|
|
} catch (error) {
|
|
console.error("[MCP] Error handling request:", error);
|
|
if (!res.headersSent) {
|
|
res.status(500).json({
|
|
jsonrpc: "2.0",
|
|
error: { code: -32603, message: "Internal server error" },
|
|
id: null,
|
|
});
|
|
}
|
|
}
|
|
};
|
|
|
|
// Routes
|
|
app.post("/mcp", mcpPostHandler);
|
|
|
|
app.get("/mcp", async (req: Request, res: Response) => {
|
|
const sessionId = req.headers["mcp-session-id"] as string | undefined;
|
|
if (!sessionId || !transports[sessionId]) {
|
|
res.status(400).send("Invalid or missing session ID");
|
|
return;
|
|
}
|
|
const transport = transports[sessionId];
|
|
await transport.handleRequest(req, res);
|
|
});
|
|
|
|
app.delete("/mcp", async (req: Request, res: Response) => {
|
|
const sessionId = req.headers["mcp-session-id"] as string | undefined;
|
|
if (!sessionId || !transports[sessionId]) {
|
|
res.status(400).send("Invalid or missing session ID");
|
|
return;
|
|
}
|
|
try {
|
|
const transport = transports[sessionId];
|
|
await transport.handleRequest(req, res);
|
|
} catch (error) {
|
|
console.error("[MCP] Error handling session termination:", error);
|
|
if (!res.headersSent) {
|
|
res.status(500).send("Error processing session termination");
|
|
}
|
|
}
|
|
});
|
|
|
|
// Health check endpoint
|
|
app.get("/health", (_req: Request, res: Response) => {
|
|
res.json({
|
|
status: "ok",
|
|
server: "ui-protocols-mcp",
|
|
sessions: Object.keys(transports).length,
|
|
apps: ["flights", "hotels", "trading", "kanban", "calculator", "todo"],
|
|
});
|
|
});
|
|
|
|
// Start server
|
|
app.listen(PORT, () => {
|
|
console.log(
|
|
`[UI Protocols MCP Server] Running at http://localhost:${PORT}/mcp`,
|
|
);
|
|
console.log(`[Health Check] http://localhost:${PORT}/health`);
|
|
console.log(`[Apps] Flights, Hotels, Trading, Kanban, Calculator, Todo`);
|
|
});
|
|
|
|
// Graceful shutdown
|
|
process.on("SIGINT", async () => {
|
|
console.log("\n[MCP] Shutting down...");
|
|
for (const sessionId in transports) {
|
|
try {
|
|
await transports[sessionId].close();
|
|
delete transports[sessionId];
|
|
} catch (error) {
|
|
console.error(`[MCP] Error closing session ${sessionId}:`, error);
|
|
}
|
|
}
|
|
process.exit(0);
|
|
});
|