You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
ImprovementsKind: in v2.1.247,
ImprovementsSection of the release
What
The messages explaining why an artifact comment watch did not resume now have a variant for non-terminal hosts that leaves out CLI-only advice such as /tasks, claude agents and /login.
Details
The host wording also says "artifact" in lower case rather than "Artifact".
Watch state can now be rebuilt by replaying appended artifact comment monitor journal lines for the session from a byte offset, up to a maximum appended size.
Evidence
"artifact-comment-monitor"
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeFixed a background session showing "opening…" forever in claude agents after its terminal host process died; the row now fails within…
