Source Intelligence
Follow Discord
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_dazzling_floyd

A Claude Code feature flag, read out of the shipped bundle. It was in the build from v2.1.223 and was gone by v2.1.242.

What it is

You can type /review instead of /code-review, and pass a PR number as the target.

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.223.

Presence across releases

ReleasesReadingDeclared typeDefault
2.1.245 – 2.1.250 5 releases never mined — —
2.1.242 – 2.1.243 2 releases not in the build — —
2.1.223 – 2.1.241 18 releases in the build — unknown

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 Gate removed from the code on on not a boolean we can read
v2.1.223 read on another version Gate removed from the code on on not a boolean we can read

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. v2.1.246Prompt and context experiment renamed to tengu_expressive_whistle, four other switches retired

    A prompt-and-context experiment switch was renamed and four other switches disappeared entirely.

    gate cited by this entry

  2. v2.1.223/code-review gains a /review alias and PR-aware help text

    You can type /review instead of /code-review, and pass a PR number as the target.

    gate cited by this entry

  3. v2.1.223/code-review remembers the effort level you typed, and is hidden from the model by default

    /code-review reuses the last effort level you typed, and Claude can no longer run it unprompted.

    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_dazzling, up to twelve of them.

tengu_dazzling_gardenThree new remote-bridge switches appear, covering a retry after a rejected token refresh and two unread ones. 2.1.238

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.