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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.251 ·

Artifact creation from agents reports distinct credential failures

Artifact creation from an agent run now names whether credentials were missing or rejected.

You'll notice New Features
JSON All of v2.1.251
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
New FeaturesKind: in v2.1.251,
New FeaturesSection of the release
What

Creating an Artifact from a non-interactive agent run now fails with its own codes, agent_no_credential when no credential is available and agent_credential_refused when one is rejected, rather than the generic no-auth and forbidden messages used for interactive creation.

Details
  • Selected by the interactive flag on the artifact-create call being false.
  • Interactive creation keeps its existing messages.
Evidence

agent_no_credential

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.251 →

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