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 v2.1.229,
ImprovementsSection of the release
What
The confirmation shown the first time Claude watches an artifact was rewritten. It now says a remote session is woken with a new turn when the artifact is republished and, where you grant it, when a comment on the artifact is sent to Claude, and states that notifications carry no content. The Artifact tool description gained a matching sentence about durable wake subscriptions, emitted only when an internal flag is on.
Evidence
in a remote session, also when a comment on it is sent to Claude
Strings lifted out of the shipped bundle, so the claim above can be checked against them.