Under the hood
Artifact auto-reply notice text no longer calls itself an "acknowledgement only"
What
When Claude automatically replies to a comment thread on an artifact without changing the artifact itself, the internal notice describing that reply was reworded. It previously called the reply an "acknowledgement only"; it now describes it as a reply that "may answer a question, but nothing in the artifact was changed".
Why
The new wording is more precise about what actually happened: the reply may contain a real answer, it just didn't result in any edit to the artifact.