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Sweep 06 Nov 2026 · 01:32Z Build v2.1.319 537 read Stable v2.1.311 Latest v2.1.318 Next v2.1.319 Feeds RSS JSON llms.txt llms-full.txt Unofficial

tengu_eager_pillow

flag in the build JSON

A Claude Code feature flag, read out of the shipped bundle. It has been in the build since v2.1.274, including the newest one read.

A gated code path changes how Claude Code detects unresolved tool uses

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.274.

First seen v2.1.274 16 Sep 2026
Last seen v2.1.319 6 Nov 2026
Builds42 / 159on this box, as of v2.1.319
Written about v2.1.274 first named in a changelog, 16 Sep 2026
v2.1.274in the build not in the build never minedv2.1.319

In the changelogs

5

Releases whose published page names tengu_eager_pillow.

  1. v2.1.312
    Resuming an interrupted turn re-runs waiting agent calls instead of the whole turn

    After a restart, agent calls left waiting in an interrupted turn are run again so each picks up its agent, rather than redoing the whole turn

    gate cited by this entry

  2. v2.1.311
    Denying a parked permission prompt is now treated as a refusal

    In one mode, Deny on a parked permission prompt in a remote session is now a refusal that holds, and later answers for that action are dropped

    gate cited by this entry

  3. v2.1.292
    Resuming an interrupted turn recovers tool calls the previous worker already handled

    With CLAUDE_CODE_RESUME_INTERRUPTED_TURN set, resume now finds tool calls the previous worker recorded but the transcript left unfinished

    gate cited by this entry

  4. v2.1.288
    Remote switches now control two subagent and tool-result behaviours

    Two remote switches, off by default, control keeping a file-sending tool's results in subagents and how unanswered tool requests are found

    gate cited by this entry, found in this entry's text

  5. v2.1.274
    Gated: eager unresolved-tool-use detection path (tengu_eager_pillow)

    A gated code path changes how Claude Code detects unresolved tool uses

    named in this entry, gate cited by this entry, found in this entry's text

Gate readings

5
ReleaseResolvedThis accountAnonymousCompiled default
v2.1.312 read on another version Off by default, switched on for this account on on off
v2.1.311 read on another version Off by default, switched on for this account on on off
v2.1.292 read on another version Off by default, switched on for this account on on off
v2.1.288 read on another version Off by default, switched on for this account on on off
v2.1.274 read on another version Not enough to say no value returned no value returned off

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.

Flag server, over time

6
Read asReadingFromUntilVersion installed
anonymous on 2026-10-17T05:30:04Z 2026-11-06T10:30:06Z v2.1.302 to v2.1.318
this account on 2026-09-18T22:05:04Z 2026-11-06T10:30:06Z v2.1.277 to v2.1.318
anonymous no longer carried 2026-10-17T05:25:57Z 2026-10-17T05:25:57Z v2.1.302
anonymous on 2026-09-18T21:00:06Z 2026-10-17T05:10:04Z v2.1.277 to v2.1.302
this account off 2026-09-17T19:35:04Z 2026-09-18T21:00:06Z v2.1.274 to v2.1.277
anonymous off 2026-09-17T19:30:05Z 2026-09-18T20:45:04Z v2.1.274 to v2.1.277

One row per unbroken stretch of one reading, newest first, from snapshots taken every twenty-five minutes or so. No longer carried is not off: it means the flag server stopped returning the gate at all, which is what a retired experiment looks like. The version column is what was installed when the reading was taken, not what caused it.

First cited

1

The earliest release whose published evidence quoted tengu_eager_pillow was v2.1.274, 16 Sep 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.

ReleaseDateThe span that was quoted
v2.1.27416 Sep 2026tengu_eager_pillow

Presence across releases

1
BuildsHow manyDatesReading
v2.1.274 – v2.1.31942 builds16 Sep 2026 → 6 Nov 2026 ◆in the build

Build by build

42

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
v2.1.27416 Sep 2026·addedverdict: added · default bool:false
v2.1.27517 Sep 2026·presentverdict: present · default bool:false
v2.1.27618 Sep 2026·presentverdict: present · default bool:false
v2.1.27718 Sep 2026·presentverdict: present · default bool:false
v2.1.27819 Sep 2026·presentverdict: present · default bool:false
v2.1.28022 Sep 2026·presentverdict: present · default bool:false
v2.1.28123 Sep 2026·presentverdict: present · default bool:false
v2.1.28224 Sep 2026·presentverdict: present · default bool:false
v2.1.28325 Sep 2026·presentverdict: present · default bool:false
v2.1.28428 Sep 2026·presentverdict: present · default bool:false
v2.1.28529 Sep 2026·presentverdict: present · default bool:false
v2.1.28630 Sep 2026·presentverdict: present · default bool:false
v2.1.2871 Oct 2026·presentverdict: present · default bool:false
v2.1.2882 Oct 2026·presentverdict: present · default bool:false
v2.1.2893 Oct 2026·presentverdict: present · default bool:false
v2.1.2905 Oct 2026·presentverdict: present · default bool:false
v2.1.2916 Oct 2026·presentverdict: present · default bool:false
v2.1.2926 Oct 2026·presentverdict: present · default bool:false
v2.1.2937 Oct 2026·presentverdict: present · default bool:false
v2.1.2948 Oct 2026·presentverdict: present · default bool:false
v2.1.2958 Oct 2026·presentverdict: present · default bool:false
v2.1.2969 Oct 2026·presentverdict: present · default bool:false
v2.1.29914 Oct 2026·presentverdict: present · default bool:false
v2.1.30014 Oct 2026·presentverdict: present · default bool:false
v2.1.30115 Oct 2026·presentverdict: present · default bool:false
v2.1.30216 Oct 2026·presentverdict: present · default bool:false
v2.1.30318 Oct 2026·presentverdict: present · default bool:false
v2.1.30419 Oct 2026·presentverdict: present · default bool:false
v2.1.30520 Oct 2026·presentverdict: present · default bool:false
v2.1.30621 Oct 2026·presentverdict: present · default bool:false
v2.1.30721 Oct 2026·presentverdict: present · default bool:false
v2.1.30822 Oct 2026·presentverdict: present · default bool:false
v2.1.30922 Oct 2026·presentverdict: present · default bool:false
v2.1.31023 Oct 2026·presentverdict: present · default bool:false
v2.1.31126 Oct 2026·presentverdict: present · default bool:false
v2.1.31227 Oct 2026·presentverdict: present · default bool:false
v2.1.31430 Oct 2026·presentverdict: present · default bool:false
v2.1.31530 Oct 2026·presentverdict: present · default bool:false
v2.1.31631 Oct 2026·presentverdict: present · default bool:false
v2.1.3172 Nov 2026·presentverdict: present · default bool:false
v2.1.3183 Nov 2026·presentverdict: present · default bool:false
v2.1.3196 Nov 2026·presentverdict: present · default bool:false

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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