Follow Discord
Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

tengu_lantern_sconce

flag in the build JSON

A Claude Code feature flag, read out of the shipped bundle. It has been in the build since v2.1.247, including the newest one read.

A status bar notice about usage limits and covered extra usage is built but switched off.

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.247.

First seen v2.1.247 26 Aug 2026
Last seen v2.1.309 22 Oct 2026
Builds53 / 150on this box, as of v2.1.309
Written about v2.1.247 first named in a changelog, 26 Aug 2026
v2.1.247in the build not in the build never minedv2.1.309

In the changelogs

2

Releases whose published page names tengu_lantern_sconce.

  1. v2.1.277
    Usage-limit warning message reworked with remote-configurable copy and added link

    Usage-limit warning now uses remote-managed text and links to clau.de/wrap-up

    gate cited by this entry

  2. v2.1.247
    Usage-limit grace notice, compiled in but off

    A status bar notice about usage limits and covered extra usage is built but switched off.

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

Gate readings

2
ReleaseResolvedThis accountAnonymousCompiled default
v2.1.277 read on another version Not enough to say no value returned no value returned off
v2.1.247 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

8
Read asReadingFromUntilVersion installed
anonymous on 2026-10-17T05:30:04Z 2026-10-22T22:00:06Z v2.1.302 to v2.1.308
this account on 2026-10-07T18:00:12Z 2026-10-22T22:00:06Z v2.1.292 to v2.1.308
anonymous no longer carried 2026-10-17T05:25:57Z 2026-10-17T05:25:57Z v2.1.302
anonymous on 2026-09-23T01:15:04Z 2026-10-17T05:10:04Z v2.1.280 to v2.1.302
this account off 2026-10-07T17:59:34Z 2026-10-07T17:59:34Z v2.1.293
this account on 2026-09-23T01:20:05Z 2026-10-07T17:10:05Z v2.1.280 to v2.1.292
this account off 2026-09-22T23:25:04Z 2026-09-23T01:15:04Z v2.1.280
anonymous off 2026-09-22T23:20:05Z 2026-09-22T23:45:05Z v2.1.280

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

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

1
BuildsHow manyDatesReading
v2.1.247 – v2.1.30953 builds26 Aug 2026 → 22 Oct 2026 ◆in the build

Build by build

53

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
v2.1.24726 Aug 2026·addedverdict: added · default bool:false
v2.1.24827 Aug 2026·presentverdict: present · default bool:false
v2.1.25027 Aug 2026·presentverdict: present · default bool:false
v2.1.25128 Aug 2026·presentverdict: present · default bool:false
v2.1.25231 Aug 2026·presentverdict: present · default bool:false
v2.1.2571 Sep 2026·presentverdict: present · default bool:false
v2.1.2581 Sep 2026·presentverdict: present · default bool:false
v2.1.2592 Sep 2026·presentverdict: present · default bool:false
v2.1.2603 Sep 2026·presentverdict: present · default bool:false
v2.1.2614 Sep 2026·presentverdict: present · default bool:false
v2.1.2636 Sep 2026·presentverdict: present · default bool:false
v2.1.2658 Sep 2026·presentverdict: present · default bool:false
v2.1.2668 Sep 2026·presentverdict: present · default bool:false
v2.1.2679 Sep 2026·presentverdict: present · default bool:false
v2.1.26810 Sep 2026·presentverdict: present · default bool:false
v2.1.26911 Sep 2026·presentverdict: present · default bool:false
v2.1.27012 Sep 2026·presentverdict: present · default bool:false
v2.1.27114 Sep 2026·presentverdict: present · default bool:false
v2.1.27214 Sep 2026·presentverdict: present · default bool:false
v2.1.27315 Sep 2026·presentverdict: present · default bool:false
v2.1.27416 Sep 2026·presentverdict: present · 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

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.

Feedback