Source Intelligence
Follow Discord

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 v2.1.221 Home All releases ←olderv2.1.220 v2.1.222newer→
Claude Code v2.1.221

Artifact auto-reply subscriptions can be stopped from the cancel gestures

Not switched on
Useful3 Signal4
Artifacts Notable not in their notes

Escape or double ctrl+x ctrl+k now also turns off automatic replies to comments on your artifacts.

Artifact auto-reply subscriptions and their cancel gestures sit behind CLAUDE_CODE_ARTIFACT_COMMENTS, off by default.

Feature flag
tengu_teal_corbel On for this account, and not off by default

The flag server returned on for the one account this site reads, and nothing in this release compiles it off by default. The compiled default is shown below, and says which it is when we cannot read one: a fifth of gates compile in a string or a number rather than on or off, and most published releases have no gate table behind them at all. No client can see what the server returns for your account.

This account: on · anonymous baseline: on · compiled default in v2.1.221: on

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.221. It isn't a statement about your account. What a flag value here can and cannot tell you

CLAUDE_CODE_ARTIFACT_COMMENTS
What

Artifacts published while comment support is on arm a subscription that automatically replies to viewer comment threads, and the existing cancel gestures now turn it off.

Details
  • Escape stops the non-durable subscriptions and posts a task notification saying a future publish re-arms them.
  • The kill-all-agents gesture, double ctrl+x ctrl+k, disarms auto-replies for the whole session, with a distinct message even when nothing was armed.
  • Notifications carry origin source "artifact-auto-react".
  • Gated on CLAUDE_CODE_ARTIFACT_COMMENTS in the environment, otherwise tengu_teal_corbel, whose fallback is false.
Evidence

use the kill-all-agents gesture to disarm auto-replies for the whole session

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.221 →