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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_lapis_anchor_from_client_data

flag gone JSON

A Claude Code feature flag, read out of the shipped bundle. It was in the build from v2.1.246 and was gone by v2.1.247.

Token-reminder settings can now arrive from the server, but your env var and setting still win.

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.236.

First seen v2.1.246 25 Aug 2026
Last seen v2.1.246 25 Aug 2026, gone by v2.1.247
Builds1 / 150on this box, as of v2.1.309
Written about v2.1.236 first named in a changelog, 19 Aug 2026
v2.1.246in the build not in the build never minedv2.1.309

In the changelogs

1

Releases whose published page names tengu_lapis_anchor_from_client_data.

  1. v2.1.236
    Token-reminder settings can now be delivered by the server directly

    Token-reminder settings can now arrive from the server, but your env var and setting still win.

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

Gate readings

0

No release here has a gate table behind it for this flag. Most published releases have none at all: the readings exist only for versions the pipeline captured flag state on.

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
v2.1.2461 build25 Aug 2026 ◆in the build
v2.1.247 – v2.1.30953 builds26 Aug 2026 → 22 Oct 2026 ○not in the build

Build by build

54

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
v2.1.24625 Aug 2026·addedverdict: added · default unknown
v2.1.24726 Aug 2026·removedverdict: removed
v2.1.24827 Aug 2026·absent—
v2.1.25027 Aug 2026·absent—
v2.1.25128 Aug 2026·absent—
v2.1.25231 Aug 2026·absent—
v2.1.2571 Sep 2026·absent—
v2.1.2581 Sep 2026·absent—
v2.1.2592 Sep 2026·absent—
v2.1.2603 Sep 2026·absent—
v2.1.2614 Sep 2026·absent—
v2.1.2636 Sep 2026·absent—
v2.1.2658 Sep 2026·absent—
v2.1.2668 Sep 2026·absent—
v2.1.2679 Sep 2026·absent—
v2.1.26810 Sep 2026·absent—
v2.1.26911 Sep 2026·absent—
v2.1.27012 Sep 2026·absent—
v2.1.27114 Sep 2026·absent—
v2.1.27214 Sep 2026·absent—
v2.1.27315 Sep 2026·absent—
v2.1.27416 Sep 2026·absent—
v2.1.27517 Sep 2026·absent—
v2.1.27618 Sep 2026·absent—
v2.1.27718 Sep 2026·absent—
v2.1.27819 Sep 2026·absent—
v2.1.28022 Sep 2026·absent—
v2.1.28123 Sep 2026·absent—
v2.1.28224 Sep 2026·absent—
v2.1.28325 Sep 2026·absent—
v2.1.28428 Sep 2026·absent—
v2.1.28529 Sep 2026·absent—
v2.1.28630 Sep 2026·absent—
v2.1.2871 Oct 2026·absent—
v2.1.2882 Oct 2026·absent—
v2.1.2893 Oct 2026·absent—
v2.1.2905 Oct 2026·absent—
v2.1.2916 Oct 2026·absent—
v2.1.2926 Oct 2026·absent—
v2.1.2937 Oct 2026·absent—
v2.1.2948 Oct 2026·absent—
v2.1.2958 Oct 2026·absent—
v2.1.2969 Oct 2026·absent—
v2.1.29914 Oct 2026·absent—
v2.1.30014 Oct 2026·absent—
v2.1.30115 Oct 2026·absent—
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—

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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