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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.321 ·

Clearer messages when an artifact can't be written

Claude Code now tells the model why an artifact write was refused, not to retry it, and to publish under project/ instead

You'll notice Improvements
JSON All of v2.1.321
You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
ImprovementsKind: in v2.1.321,
ImprovementsSection of the release
What

Claude Code now has specific messages for when writing to an artifact is refused. They cover:

  • documents that are only a page
  • artifacts that keep their content in files under project/ rather than in their database
  • refusals it does not recognise

The messages tell the model not to retry the write, and to publish under project/ instead.

Why

The model is steered away from repeating a write that will keep failing.

See this entry in the whole of v2.1.321 →

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