Snowfort Circuit MCP

#!/usr/bin/env node // Apply buffer patch for Node.js v24 compatibility before any MCP imports import "@snowfort/circuit-core/buffer-patch.js"; import { Command } from "commander"; import { WebDriver } from "./web-driver.js"; import { WebMCPServer } from "./web-server.js"; // Track server instance to handle cleanup let serverInstance: WebMCPServer | null = null; // Handle unhandled rejections process.on("unhandledRejection", (reason, promise) => { console.error("[WEB-MCP] Unhandled Rejection at:", promise, "reason:", reason); // Don't exit immediately - let MCP server handle errors gracefully }); process.on("uncaughtException", (error) => { console.error("[WEB-MCP] Uncaught Exception:", error); // Only exit on truly fatal errors if (error.message && error.message.includes('MCP Server')) { process.exit(1); } }); // Handle process termination gracefully process.on("SIGINT", async () => { console.error("[WEB-MCP] Received SIGINT, shutting down gracefully..."); if (serverInstance) { await serverInstance.cleanup(); } process.exit(0); }); process.on("SIGTERM", async () => { console.error("[WEB-MCP] Received SIGTERM, shutting down gracefully..."); if (serverInstance) { await serverInstance.cleanup(); } process.exit(0); }); // Keep the process alive process.stdin.on("end", () => { console.error("[WEB-MCP] stdin ended, keeping process alive..."); }); const program = new Command(); program .name("circuit-web") .description("Snowfort Circuit Web MCP - Computer use for webapps and electron apps") .version("0.0.13") .option("--port <port>", "Port to listen on (stdio mode only)") .option("--browser <browser>", "Default browser engine", "chromium") .option("--headed", "Run in headed mode by default") .option("--name <name>", "Server name for MCP handshake", "circuit-web") .action(async (options) => { try { console.error("[WEB-MCP] Starting MCP server..."); serverInstance = new WebMCPServer(options.name, "0.0.13"); await serverInstance.run(); console.error("[WEB-MCP] MCP server running"); } catch (error) { console.error("[WEB-MCP] Fatal MCP Server Error:", error); process.exit(1); } }); program.parse();