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 v2.1.242 Home All releases olderv2.1.241 v2.1.243newer
Claude Code v2.1.242

Live artifact rooms ship complete but can never switch on in this build

Not switched on
Useful2 Signal5
Artifacts Notable

Live rooms on artifacts, with messages and consent, are complete but can never turn on here.

Room joining, notifications and 4 KiB topic messages are fully built, but the availability check reads a null client and always says no.

What

The whole live-room feature is present: joining a room when you publish, room event notifications, sending messages of up to 4 KiB on a topic, and per-artifact consent before joining. The availability check reads a null client, so it always answers no, and the room instructions and schema are left out of the artifact tool description this build assembles.

Details
  • Artifact types are gated separately, by a snapshot taken when the tool schema is built, with independent switches for listing types, creating them and browsing the catalogue.
  • That snapshot is computed from the shape of the server-provided schema plus feature checks, so which type actions a session sees is decided server-side.
Evidence

return null?.isArtifactRoomEnabled() === !0;

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

See this entry in the whole of v2.1.242 →