Your AI Agent Can Now Debug Playwright Tests

Jul 29, 2026

Playwright 1.59 added a `cli` parameter to the `--debug` flag, and this enables your coding agent to use the built-in step-through debugger.

Step through the test steps, inspect network traffic at every moment, and access the accessibility tree. The same debugger is now usable without the inspector window.

Release notes: https://playwright.dev/docs/release-notes#-cli-debugger-for-agents
Playwright monitoring with Checkly: https://www.checklyhq.com/product/synthetic-monitoring/

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