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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.221 ·

Artifact live-update arming carries auto-react wiring

Artifact live-update watching now carries the plumbing needed for automatic comment replies and cancellation.

Nothing to try yet No documentation found In Development
JSON All of v2.1.221
Nothing to try yetTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
In DevelopmentKind: in v2.1.221,
In DevelopmentSection of the release

Auto-react wiring in artifact live updates is gated on CLAUDE_CODE_ARTIFACT_COMMENTS, off by default.

What

The arming path for artifact live updates now threads through the plumbing that makes auto-replies work, keyed off whether the Artifact tool schema exposes comment verbs.

Details
  • Takes autoReactWiring and freshPublishWiring, decided by whether thread_id is present in the Artifact tool schema.
  • When present it builds a notify channel posting task notifications tagged with source "artifact-auto-react", plus an AbortController per slug.
  • If a watch is already active the wiring is stashed so a later arm picks it up.
  • Cancellation is now checked before arming rather than after.
  • Same gate as the comments feature: CLAUDE_CODE_ARTIFACT_COMMENTS or tengu_teal_corbel, fallback false.
Evidence

commentVerbsInSchema

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

Read from
Feature flag
tengu_teal_corbel Off by default, switched on for this account

The shipped code defaults this off, and the flag server returned on for the one account this site reads on this version. That is the reading that makes the entry above worth a second look, and it still says nothing about your account.

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

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

What has happened since
Flag reading moved The flag server now returns on for tengu_teal_corbel, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading moved The flag server now returns nothing at all, having stopped carrying it for tengu_teal_corbel, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.

See this across every release →

How sure we are
One source agreesOne thing we can check says the same as this entry.
The name it cites is new in this buildNew in this build: CLAUDE_CODE_ARTIFACT_COMMENTS

See this entry in the whole of v2.1.221 →

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