You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
ImprovementsKind: in v2.1.319,
ImprovementsSection of the release
What
Claude Code now gives the model a reason when it refuses a group of writes to an artifact's database. An artifact is a document or piece of content that Claude produces. The reasons include:
the same refused write has been tried too many times, so repeats are briefly turned away
the document is missing or cannot be reached
Why
The model gets clearer guidance on how to recover when a write fails.