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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial

tengu_harmonic_cook

flag gone JSON

A Claude Code feature flag, read out of the shipped bundle. It was in the build from v2.1.282 and was gone by v2.1.301.

Messages relayed from a project's coordinator session are handled by a switch that defaults to on, and the model is told when one is waiting

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.282.

First seen v2.1.282 24 Sep 2026
Last seen v2.1.300 14 Oct 2026, gone by v2.1.301
Builds17 / 161on this box, as of v2.1.322
Written about v2.1.282 first named in a changelog, 24 Sep 2026
v2.1.282in the build not in the build never minedv2.1.322

In the changelogs

1

Releases whose published page names tengu_harmonic_cook.

  1. v2.1.282
    Coordinator sessions can relay messages to other sessions, with a waiting-message reminder

    Messages relayed from a project's coordinator session are handled by a switch that defaults to on, and the model is told when one is waiting

    gate cited by this entry

Gate readings

1
ReleaseResolvedThis accountAnonymousCompiled default
v2.1.282 read on another version Not enough to say no value returned no value returned 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.

First cited

0

No release's published evidence quotes this name. The ledger indexes the Evidence lines of every changelog on this site, so this says nobody here has ever quoted it; it says nothing about how old the name is.

Presence across releases

2
BuildsHow manyDatesReading
v2.1.282 – v2.1.30017 builds24 Sep 2026 → 14 Oct 2026 ◆in the build
v2.1.301 – v2.1.32220 builds15 Oct 2026 → 10 Nov 2026 ○not in the build

Build by build

37

One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.

BuildDateStateThe record behind it
v2.1.28224 Sep 2026·addedverdict: added · default string
v2.1.28325 Sep 2026·presentverdict: present · default string
v2.1.28428 Sep 2026·presentverdict: present · default string
v2.1.28529 Sep 2026·presentverdict: present · default string
v2.1.28630 Sep 2026·presentverdict: present · default string
v2.1.2871 Oct 2026·presentverdict: present · default string
v2.1.2882 Oct 2026·presentverdict: present · default string
v2.1.2893 Oct 2026·presentverdict: present · default string
v2.1.2905 Oct 2026·presentverdict: present · default string
v2.1.2916 Oct 2026·presentverdict: present · default string
v2.1.2926 Oct 2026·presentverdict: present · default string
v2.1.2937 Oct 2026·presentverdict: present · default string
v2.1.2948 Oct 2026·presentverdict: present · default string
v2.1.2958 Oct 2026·presentverdict: present · default string
v2.1.2969 Oct 2026·presentverdict: present · default string
v2.1.29914 Oct 2026·presentverdict: present · default string
v2.1.30014 Oct 2026·presentverdict: present · default string
v2.1.30115 Oct 2026·removedverdict: removed
v2.1.30216 Oct 2026·absent—
v2.1.30318 Oct 2026·absent—
v2.1.30419 Oct 2026·absent—
v2.1.30520 Oct 2026·absent—
v2.1.30621 Oct 2026·absent—
v2.1.30721 Oct 2026·absent—
v2.1.30822 Oct 2026·absent—
v2.1.30922 Oct 2026·absent—
v2.1.31023 Oct 2026·absent—
v2.1.31126 Oct 2026·absent—
v2.1.31227 Oct 2026·absent—
v2.1.31430 Oct 2026·absent—
v2.1.31530 Oct 2026·absent—
v2.1.31631 Oct 2026·absent—
v2.1.3172 Nov 2026·absent—
v2.1.3183 Nov 2026·absent—
v2.1.3196 Nov 2026·absent—
v2.1.3219 Nov 2026·absent—
v2.1.32210 Nov 2026·absent—

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.

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