basic-sample-and-elicit.ts

import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";

const server = new McpServer(
  {
    name: "My MCP",
    version: "1.0.0",
  },
  {
    capabilities: {
      sampling: {},
    },
  }
);

const transport = new StdioServerTransport();
server.connect(transport);

const test = await server.server.createMessage({
  messages: [
    {
      role: "user",
      content: {
        type: "text",
        text: "What is the capital of France?",
      },
    },
  ],
  modelPreferences: {
    hints: [
      {
        name: "claude-3-sonnet",
      },
    ],
    intelligencePriority: 0.8,
    speedPriority: 0.5,
  },
  systemPrompt: "You are a helpful assistant.",
  maxTokens: 100,
});

const result = await server.server.elicitInput({
  message: `No tables available. Would you like to check alternative dates?`,
  requestedSchema: {
    type: "object",
    properties: {
      checkAlternatives: {
        type: "boolean",
        title: "Check alternative dates",
        description: "Would you like me to check other dates?",
      },
      flexibleDates: {
        type: "string",
        title: "Date flexibility",
        description: "How flexible are your dates?",
        enum: ["next_day", "same_week", "next_week"],
        enumNames: ["Next day", "Same week", "Next week"],
      },
    },
    required: ["checkAlternatives"],
  },
});