Playwright Stealth Verify for Openclaw

Install in a Node.js project

Node.js 22 or newer is required. Install liarjs as a development dependency so its version is recorded in the lockfile:

npm install --save-dev liarjs

Use it with an existing Playwright or Puppeteer Page:

import { checkPage } from "liarjs";

const result = await checkPage(page);
expect(result.score).toBeGreaterThanOrEqual(85);

const critical = result.checks.filter((c) => c.status === "bad");
expect(critical).toHaveLength(0);

Scan a browser through CDP

For a browser already listening on port 9222:

npx [email protected] --cdp http://127.0.0.1:9222

Example with a locally launched Chromium process:

./chrome --remote-debugging-port=9222 &
npx [email protected] --cdp http://127.0.0.1:9222

Confirm ownership of the CDP endpoint before attaching. When testing a launch configuration rather than a specific running browser, prefer the default CLI behavior, which launches a throwaway profile in a temporary directory and deletes it afterward.

Network and page options

Use offline mode for the 32 JavaScript-layer checks without outbound requests:

npx [email protected] --offline

Without offline mode, the browser requests the liarjs network endpoint. Use endpoint to route that request to an approved deployment of the Worker, and use page only with a page the user owns. Do not navigate to third-party sites as part of a scan.

ScanResult structure

Harness-focused check taxonomy

The complete catalog contains 40 checks and is documented in the browser-fingerprint-audit skill reference. Online scans add network observations such as IP, ASN, HTTP version, TLS version, ClientHello shape, and headers; offline scans restrict measurement to the JavaScript layer.