When a commenter draws a rectangle over part of a page element instead of selecting the whole element, the auto-react system now reads which child elements the rectangle covers and quotes them in page order. This lets Claude resolve what "this" or "these" refers to in the comment, going beyond the previous single-element anchor snippet.
Artifact comments can anchor to a drawn rectangle, not just an element
A comment drawn as a rectangle now quotes every element it covers, so Claude can tell what this or these refers to.
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
ImprovementsKind: in v2.1.257,
ImprovementsSection of the release