Function createMcpServer

src/index.ts:32–192

(
  serverArgs: ReturnType<typeof parseArguments>,
  options: {
    logFile?: fs.WriteStream;
  },
)

export {buildFlag} from './ToolHandler.js';

export async function createMcpServer(
  serverArgs: ReturnType<typeof parseArguments>,
  options: {
    logFile?: fs.WriteStream;
  },
) {
  if (serverArgs.usageStatistics) {
    ClearcutLogger.initialize({
      persistence: new FilePersistence(),
      logFile: serverArgs.logFile,
      appVersion: VERSION,
      clearcutEndpoint: serverArgs.clearcutEndpoint,
      clearcutForceFlushIntervalMs: serverArgs.clearcutForceFlushIntervalMs,
      clearcutIncludePidHeader: serverArgs.clearcutIncludePidHeader,
    });
  }

  const server = new McpServer(
    {
      name: 'chrome_devtools',
      title: 'Chrome DevTools MCP server',
      version: VERSION,
    },
    {capabilities: {logging: {}}},
  );
  server.server.setRequestHandler(SetLevelRequestSchema, () => {
    return {};
  });

  const updateRoots = async () => {
    if (!server.server.getClientCapabilities()?.roots) {
      return;
    }
    try {
      const roots = await server.server.request(
        {method: 'roots/list'},
        ListRootsResultSchema,
      );
      context?.setRoots(roots.roots);
    } catch (e) {
      logger?.('Failed to list roots', e);
    }
  };

  server.server.oninitialized = () => {
    const clientName = server.server.getClientVersion()?.name;
    if (clientName) {
      ClearcutLogger.get()?.setClientName(clientName);
    }
    if (server.server.getClientCapabilities()?.roots) {
      void updateRoots();
      server.server.setNotificationHandler(
        RootsListChangedNotificationSchema,
        () => {
          void updateRoots();
        },
      );
    }