AI Agent Browser Automation: Why Headless Scripts Are Not Enough for Real Workflows

Most developers meet browser automation through a clean demo. Open a page. Click a button. Fill a form. Read the result. Close the browser. For that kind of task, a headless script is often enough. Playwright , Puppeteer , Selenium , and CDP-based tools are excellent when the path is stable and the browser state does not carry much business risk. But AI agent browser automation changes the problem. Once an agent is expected to work across logged-in accounts, persistent sessions, different proxy