MCP Elicitations Demo Server

import { Server } from "@modelcontextprotocol/sdk/server/index.js"; import { Tool, CallToolRequestSchema, ListToolsRequestSchema, } from "@modelcontextprotocol/sdk/types.js"; import { echoTool } from "./tool-echo.js"; import { addTool } from "./tool-add.js"; import { longRunningOperationTool } from "./tool-long-running-operation.js"; import { printEnvTool } from "./tool-print-env.js"; import { sampleLlmTool } from "./tool-sample-llm.js"; import { getTinyImageTool } from "./tool-get-tiny-image.js"; import { annotatedMessageTool } from "./tool-annotated-message.js"; import { getResourceReferenceTool } from "./tool-get-resource-reference.js"; import { elicitationTool } from "./tool-elicitation.js"; import { getResourceLinksTool } from "./tool-get-resource-links.js"; import { sampleWithPreferencesTool } from "./tool-sample-with-preferences.js"; import { sampleMultimodalTool } from "./tool-sample-multimodal.js"; import { sampleConversationTool } from "./tool-sample-conversation.js"; import { sampleWithContextTool as sampleAdvancedTool } from "./tool-sample-with-context.js"; const allTools = [ echoTool, addTool, longRunningOperationTool, printEnvTool, sampleLlmTool, sampleWithPreferencesTool, sampleMultimodalTool, sampleConversationTool, sampleAdvancedTool, getTinyImageTool, annotatedMessageTool, getResourceReferenceTool, elicitationTool, getResourceLinksTool, ]; export const getTools = (): Tool[] => { return allTools.map((tool) => ({ name: tool.name, description: tool.description, inputSchema: tool.inputSchema as any, })); }; export const getToolHandler = (name: string) => { const tool = allTools.find((t) => t.name === name); return tool?.handler; }; // Setup function to handle all tool-related request handlers export const setupTools = (server: Server) => { // Handle listing all available tools server.setRequestHandler(ListToolsRequestSchema, async () => { return { tools: getTools() }; }); // Handle tool execution server.setRequestHandler(CallToolRequestSchema, async (request) => { const { name, arguments: args } = request.params; const handler = getToolHandler(name); if (handler) { return await handler(args, request, server); } throw new Error(`Unknown tool: ${name}`); }); };