What
Resolving an artifact comment thread now distinguishes two cases with their own wording: Claude on the thread was activated by a different user, and the resolve needs a credential this session does not hold. Any other refusal now throws rather than being handled quietly.
Details
- The publish-and-reply path gained a matching notice for the different-user case.
- The "answered elsewhere" notice was renamed to a withheld-reply notice and now includes the reason the reply was withheld.
Evidence
This does not block the work itself: if you addressed the thread, reply saying what you did, and leave resolving to the commenter.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.