Execute a test pass against a running build — a local server, a preview or PR deployment, or a live dev environment — by driving a real browser — walk each scenario as written, capture screenshots and console and network evidence, and report pass, fail, blocked, or flaky with a bug report for every failure. Use when the user asks to actually run the test scenarios, test the app in a browser, click through the flows, do a QA pass on a build, verify a fix end to end, or check that something works in the running app rather than on paper.
