Playwriter

Most browser agents launch a new Chrome. That instance has no logins, no extensions, and gets flagged by bot checks. Playwriter is a Chrome extension plus a CLI. It connects Playwright to the browser you already run. Agents send Playwright code through a local relay. They can click, fill, snapshot, and debug with your cookies still in place. Install the extension, click the icon on a tab, then run playwriter commands. One tool, the full Playwright API, no extra browser process.