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Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 Feeds RSS JSON llms.txt

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.

Reference / Feature flags

tengu_sorrel_trellis

A Claude Code feature flag, read out of the shipped bundle. It has been in the build since v2.1.221, including the newest one read.

What it is

Claude can watch artifact comment threads and post replies or edits, off unless you set the env var.

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.221.

Presence across releases

ReleasesReadingDeclared typeDefault
2.1.245 – 2.1.250 5 releases never mined — —
2.1.221 – 2.1.243 22 releases in the build — bool:false

A row reading never mined is a release with no archived bundle behind it. Nothing was read out of it, so nothing here says whether the name was in it. A declared type or a default is only ever what that release's own bundle stated.

Gate readings

ReleaseResolvedThis accountAnonymousCompiled default
v2.1.246 On for this account, and not off by default on on on
v2.1.238 On for this account, and not off by default on on on
v2.1.236 On for this account, and not off by default on on on
v2.1.233 read on another version On for this account, and not off by default on on on
v2.1.227 read on another version On for this account, and not off by default on on on
v2.1.221 read on another version On for this account, and not off by default on on on

Two arms, because they disagree: this account is the one account this site reads and anonymous is a baseline with no identity attached. A reading says nothing about your account, and off cannot rule out a rollout both readings sit outside of. What these readings can and cannot show.

Changelog entries naming it

  1. v2.1.246Watching an artifact can arm comment auto-replies, but the capability is gated off

    Watching an artifact can arm automatic replies to its comments, but nothing switches that on here.

    gate cited by this entry

  2. v2.1.238Artifact auto-reply state written into the transcript so it survives resume and fork

    Automatic replies to artifact comments would survive resume and fork, but the opt-in is off by default.

    gate cited by this entry

  3. v2.1.236Artifact watches can answer comments posted just before the watch started

    A comment sent moments before a watch starts could get a reply, but the flag is off.

    gate cited by this entry

  4. v2.1.233Auto-reply guidance tells Claude to check for an existing answer before posting

    Auto-reply guidance now tells Claude to read the thread and resolve rather than duplicate.

    gate cited by this entry

  5. v2.1.233Automatic comment replies stand down if someone else answers first

    Claude withholds an automatic artifact comment reply if someone else answered while it was writing.

    gate cited by this entry

  6. v2.1.233Turning off artifact auto-react now survives a restart

    Turning off artifact auto-replies now sticks across a background session restart.

    gate cited by this entry

  7. v2.1.227Auto-reply to artifact comments can include earlier analysis notes

    Automatic artifact comment replies can carry earlier analysis notes, treated as untrusted observations.

    gate cited by this entry

  8. v2.1.221Artifact comment auto-reply subsystem

    Claude can watch artifact comment threads and post replies or edits, off unless you set the env var.

    gate cited by this entry

  9. v2.1.221Auto-replies to artifact comments

    Claude could answer artifact comments automatically, but the whole path is inert unless you turn it on.

    gate cited by this entry

Documentation pages

None of Anthropic's documentation pages this site has a copy of carries this name.

Names beside it

Every feature flag in the inventory starting tengu_sorrel, up to twelve of them.

tengu_sorrel_avocetClaude could start deep research on its own instead of waiting for you to ask, if enabled. 2.1.219 tengu_sorrel_trellis_finialArtifact comment replies get grouped wakes and a stand-down when everything was already answered, both switched off. never mined tengu_sorrel_trellis_lintelA comment sent moments before a watch starts could get a reply, but the flag is off. 2.1.236 tengu_sorrel_trellis_weirHow many turns Claude takes automatically can now be set from the server, still defaulting to 60. 2.1.227

Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the feature flag does. All feature flags.