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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 v2.1.239 ·

Interactive artifact skill now advertises much more than live data

Interactive artifacts are now described as remembering viewer actions, knowing who is viewing and storing uploaded files.

You'll notice In Development
JSON All of v2.1.239
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
In DevelopmentKind: in v2.1.239,
What probably matters to youSection of the release
What

The skill that tells Claude what a published page can do for each viewer now lists remembering what people do on the page (a poll, a sign-up sheet, a checklist, a document edited in place), knowing who is viewing, asking Claude a question of its own, and storing files people add. The same list went into the static-page template guidance.

Details
  • The loader that fetches files attached to a page now sends credentials instead of fetching anonymously.
  • The skill is behind an enablement check whose result is not fixed in this build.
Evidence

knowing who is viewing, asking Claude a question of its own, storing files people add

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

See this entry in the whole of v2.1.239 →

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