Steel

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Concept mapping

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The connection change

import Kernel from '@onkernel/sdk';
import { chromium } from 'playwright-core';

const kernel = new Kernel();
const kernelBrowser = await kernel.browsers.create({ stealth: true, timeout_seconds: 600 });

const browser = await chromium.connectOverCDP(kernelBrowser.cdp_ws_url);
const page = browser.contexts()[0].pages()[0];
await page.goto('https://example.com');
await browser.close();

await kernel.browsers.deleteByID(kernelBrowser.session_id);

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What to change next

• Stop connecting over CDP for the hot path. Playwright execution runs your code inside the browser’s VM and returns values, with no connection to manage and no CDP fingerprint on the wire. See how you drive the browser.
• Replace credential handling with managed auth. Kernel performs the login, keeps the session warm with health checks, and writes the result into a profile your browsers attach.
• Use a pool for repeated work. Pool acquisition skips both browser creation and the per-plan create rate.