This looks nice. I work on a rich text editor and have a large Playwright test suite. The hardest bugs to catch are always the ones where a speciffic sequence of user actions leaves the editor in a broken state, things like formatting inside a merged table cell or pasting content mid-selection. You would never think to write a test for those combos manually.

Curious how well the action generators work with contenteditable elements though. Rich text editors have a lot of browser-level behavior that isn't just clicks and keypresses, things like IME input, drag and drop, clipboard events. Can you write custom action generators for that kind of stuff?