What
When an artifact publish is denied because the edit grant was authored or granted by a different user, Claude Code stops and reports the refusal instead of posting an explanatory comment back onto the artifact thread.
Details
- The denial prefix is now a shared constant
publish denied:, and the failure classifier strips it and matches remainders beginning "this edit grant was authored by another user" or "this edit grant was granted by another user". - Those cases classify as a foreign summon and return a publish-refused outcome immediately, skipping the reply composition step.
- The artifact commenting feature has its own activation checks around this path.
Evidence
this edit grant was granted by another user
Strings lifted out of the shipped bundle, so the claim above can be checked against them.