MCP Browser Debugger

#!/usr/bin/env node import { Server } from '@modelcontextprotocol/sdk/server/index.js'; import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js'; import { CallToolRequestSchema, ListToolsRequestSchema } from '@modelcontextprotocol/sdk/types.js'; import { initBrowser, closeBrowser } from './browser.js'; import { tools } from './tools.js'; import { handleNavigate, handleGetDom, handleGetElement, handleExecuteJs, handleScreenshot, handleGetConsoleLogs, handleGetNetworkActivity, handleGetPageSource, handleQuerySelectorAll, handleGetPageInfo, handleClickElement, handleTypeText, handleGetLocalStorage, handleGetCookies, handleEvaluateXPath, handleOpenBrowser, handleLogin, handleGetBrowserStatus, handleCloseBrowser, } from './browserTools.js'; // Criar servidor MCP const server = new Server( { name: 'mcp-browser-debugger', version: '1.0.0', }, { capabilities: { tools: {}, }, } ); // Listar ferramentas disponíveis server.setRequestHandler(ListToolsRequestSchema, async () => { return { tools }; }); // Handler de execução de ferramentas server.setRequestHandler(CallToolRequestSchema, async (request) => { try { const { name, arguments: args } = request.params; // Despachar para o handler apropriado switch (name) { case 'get_browser_status': return await handleGetBrowserStatus(); case 'close_browser': return await handleCloseBrowser(); case 'open_browser': // open_browser gerencia seu próprio initBrowser return await handleOpenBrowser(args); case 'login': // login precisa de página, mas open_browser já foi chamado antes { const currentPage = await initBrowser(); return await handleLogin(args, currentPage); } case 'navigate': { const currentPage = await initBrowser(); return await handleNavigate(args, currentPage); } case 'get_dom': { const currentPage = await initBrowser(); return await handleGetDom(args, currentPage); } case 'get_element': { const currentPage = await initBrowser(); return await handleGetElement(args, currentPage); } case 'execute_js': { const currentPage = await initBrowser(); return await handleExecuteJs(args, currentPage); } case 'screenshot': { const currentPage = await initBrowser(); return await handleScreenshot(args, currentPage); } case 'get_console_logs': return await handleGetConsoleLogs(args); case 'get_network_activity': return await handleGetNetworkActivity(args); case 'get_page_source': { const currentPage = await initBrowser(); return await handleGetPageSource(args, currentPage); } case 'query_selector_all': { const currentPage = await initBrowser(); return await handleQuerySelectorAll(args, currentPage); } case 'get_page_info': { const currentPage = await initBrowser(); return await handleGetPageInfo(currentPage); } case 'click_element': { const currentPage = await initBrowser(); return await handleClickElement(args, currentPage); } case 'type_text': { const currentPage = await initBrowser(); return await handleTypeText(args, currentPage); } case 'get_local_storage': { const currentPage = await initBrowser(); return await handleGetLocalStorage(currentPage); } case 'get_cookies': { const currentPage = await initBrowser(); return await handleGetCookies(currentPage); } case 'evaluate_xpath': { const currentPage = await initBrowser(); return await handleEvaluateXPath(args, currentPage); } default: return { content: [ { type: 'text', text: JSON.stringify({ error: `Ferramenta desconhecida: ${name}` }), }, ], }; } } catch (error) { const err = error as Error; return { content: [ { type: 'text', text: JSON.stringify( { error: err.message, stack: err.stack, }, null, 2 ), }, ], isError: true, }; } }); // Iniciar servidor async function main() { const transport = new StdioServerTransport(); await server.connect(transport); console.error('MCP Browser Debugger Server iniciado!'); console.error('Ferramentas disponíveis: 19'); console.error('⚠️ IMPORTANTE: Sempre use get_browser_status antes de open_browser!'); console.error('Pronto para receber requisições via stdio'); } main().catch((error) => { console.error('Erro fatal:', error); process.exit(1); }); // Cleanup ao encerrar process.on('SIGINT', async () => { await closeBrowser(); process.exit(0); });