Kieran Klaassen @kieranklaassen

Opus 4.5's secret superpower: Playwright testing.

It navigates pages, captures snapshots, checks console errors, tests interactions, and knows when to pause for your input.

Added this to my code review workflow. Now reviews actually verify the UI works.

Dec 18, 2025 View on X →

https://x.com/kieranklaassen/status/2001721585691185446