... script logic, we can let an agent read a test case, drive the browser, inspect the page, collect evidence, and judge whether the user-facing expectation is satisfied. The script becomes the harness: it controls safety, browser access, reporting, credentials, screenshots, setup, and repeatability. The agent handles the parts that require interpretation. This article describes a practical design for that kind of harness, based on lessons from building one around a remote headed browser provided by [remote-browser.dev]( https://remote-browser.dev ... ... worker. For UI testing, a remote headed browser is not just a convenience. It changes the debugging loop. Instead of asking "what did the script think happened?", you can ask "what did the user actually see?" ### Harness Code vs

... credentials problem you raised is the actually hard one, and it's a different beast entirely, so I want to be careful not to hand-wave it. Hardcoding secrets or pasting them into a prompt is exactly the sketchy thing everyone does and nobody should, because now the credential

... Show webSlinger a task. It copies you in real time. Secure login & MFA. Locally held credentials. Array extraction. Generalization. Promo: https://youtu.be/59KUUWf4Qrs webslinger.ai Comment from Thomas Zaugg(@webslinger): webSlinger tasks another extension, keyCocoon to enter the credentials