Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.239 Home All releases olderv2.1.238 v2.1.240newer
Claude Code v2.1.239

Interactive artifact skill now advertises much more than live data

You'll notice
Useful3 Signal4
Artifacts

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

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 →