/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import './polyfill.js';
import process from 'node:process';
import {cliOptions, parseArguments} from './cli.js';
import {logger, saveLogsToFile} from './logger.js';
import {createMcpServer} from './server.js';
import {computeFlagUsage} from './telemetry/flagUtils.js';
import {StdioServerTransport} from './third_party/index.js';
import {VERSION} from './version.js';
export const args = parseArguments(VERSION);
const logFile = args.logFile ? saveLogsToFile(args.logFile) : undefined;
if (
process.env['CI'] ||
process.env['CHROME_DEVTOOLS_MCP_NO_USAGE_STATISTICS']
) {
console.error(
"turning off usage statistics. process.env['CI'] || process.env['CHROME_DEVTOOLS_MCP_NO_USAGE_STATISTICS'] is set.",
);
args.usageStatistics = false;
}
if (process.env['CHROME_DEVTOOLS_MCP_CRASH_ON_UNCAUGHT'] !== 'true') {
process.on('unhandledRejection', (reason, promise) => {
logger('Unhandled promise rejection', promise, reason);
});
}
logger(`Starting Chrome DevTools MCP Server v${VERSION}`);
const logDisclaimers = () => {
console.error(
`chrome-devtools-mcp exposes content of the browser instance to the MCP clients allowing them to inspect,
debug, and modify any data in the browser or DevTools.
Avoid sharing sensitive or personal information that you do not want to share with MCP clients.`,
);
if (!args.slim && args.performanceCrux) {
console.error(
`Performance tools may send trace URLs to the Google CrUX API to fetch real-user experience data. To disable, run with --no-performance-crux.`,
);
}
if (!args.slim && args.usageStatistics) {
console.error(
`
Google collects usage statistics to improve Chrome DevTools MCP. To opt-out, run with --no-usage-statistics.
For more details, visit: https://github.com/ChromeDevTools/chrome-devtools-mcp#usage-statistics`,
);
}
};
const {server, clearcutLogger} = await createMcpServer(args, {
logFile,
});
const transport = new StdioServerTransport();
await server.connect(transport);
logger('Chrome DevTools MCP Server connected');
logDisclaimers();
void clearcutLogger?.logDailyActiveIfNeeded();
void clearcutLogger?.logServerStart(computeFlagUsage(args, cliOptions));
