TL;DR
Modern web applications change constantly. Components are re-rendered, generated attributes may differ between builds. Even when the UI looks identical, browser automation can fail because it still relies on assumptions captured before the page changed.
In this article, I used Cursor with BrowserAct CLI to test a dynamic project filter. Instead of relying on unreliable selectors, Cursor used BrowserAct to inspect the current page state and complete the task without relying on brittle selectors.
The goal wasn't to eliminate the DOM or replace Playwright. The goal was to give an AI agent a reliable inspect → act → reassess loop that works on modern, dynamic websites.
Well, let's get started! 🏎️
