Terminally MCP

#!/usr/bin/env node /** * A simplified MCP client test that directly interacts with our server * This will help us understand how clients connect to MCP servers */ import { spawn } from 'child_process'; import { join } from 'path'; import { setTimeout as sleep } from 'timers/promises'; async function main() { console.log('Starting simplified MCP client test...'); // Start the server process const server = spawn('node', [join(process.cwd(), 'build', 'index.js')], { stdio: ['pipe', 'pipe', 'pipe'] }); // Handle server output server.stdout.on('data', (data) => { console.log(`[Server stdout] ${data.toString().trim()}`); }); server.stderr.on('data', (data) => { console.log(`[Server stderr] ${data.toString().trim()}`); }); // Wait for server to start (give it a bit of time) await sleep(2000); try { // Register a response handler let responseReceived = false; const responseHandler = (data) => { const dataStr = data.toString().trim(); if (!dataStr) return; console.log('Received raw server response:'); console.log(dataStr); try { // Try to parse the response to make it readable const response = JSON.parse(dataStr); console.log('Parsed response:'); console.log(JSON.stringify(response, null, 2)); responseReceived = true; } catch (error) { console.log('Failed to parse response as JSON', error); } }; // Add the temporary response handler server.stdout.on('data', responseHandler); // First, check the server capabilities console.log('\nSending server.capabilities request...'); server.stdin.write(JSON.stringify({ jsonrpc: '2.0', id: 'capabilities-1', method: 'server/capabilities', params: {} }) + '\n'); // Wait a bit for response await sleep(1000); // Then, check the tools using tools/list which should work according to our earlier test console.log('\nSending tools/list request...'); server.stdin.write(JSON.stringify({ jsonrpc: '2.0', id: 'tools-1', method: 'tools/list', params: {} }) + '\n'); // Wait for response await sleep(2000); // Wait for a bit longer to ensure we get responses await sleep(5000); // Cleanup console.log('Test completed, shutting down server...'); server.kill(); process.exit(0); } catch (error) { console.error('Error during test:', error); server.kill(); process.exit(1); } } main().catch(console.error);