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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

tengu_harbor_kite_win

flag in the build JSON

A Claude Code feature flag, read out of the shipped bundle. It has been in the build since v2.1.229, including the newest one read.

Setting CLAUDE_CODE_HARBOR_KITE forces cross-session messaging on, and Windows can now be allowed through.

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.229.

First seen v2.1.229 12 Aug 2026
Last seen v2.1.308 22 Oct 2026
Builds68 / 149on this box, as of v2.1.308
Written about v2.1.229 first named in a changelog, 12 Aug 2026
v2.1.229in the build not in the build never minedv2.1.308

In the changelogs

11

Releases whose published page names tengu_harbor_kite_win.

  1. v2.1.296
    Administrators can now switch off messaging beyond a user's own agents

    A managed setting, messagingBeyondOwnAgentsDisabled, now turns this feature off and overrides CLAUDE_CODE_HARBOR_KITE

    gate cited by this entry

  2. v2.1.248
    Kite network transport now defaults on, including on Windows

    The kite network transport is on by default everywhere, and CLAUDE_CODE_HARBOR_KITE=0 now really turns it off.

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

  3. v2.1.248
    Cross-session peer messaging is on by default

    Sessions can message each other by default now, including on Windows; the cloud variant stays off.

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

  4. v2.1.238
    Cross-session peer identity is now keyed to the account, still off by default

    Session-to-session messaging identity now follows your account, but the whole feature is off by default.

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

  5. v2.1.236
    Asking another local session to ping you when it goes idle, built end to end but not offered to the model

    Your session already honours idle-ping requests from other sessions; only asking for one is gated off.

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

  6. v2.1.236
    The message tool's notify_when_idle parameter and its supporting layer

    Claude can ask another session to ping it when idle, but the parameter is hidden unless the gate is on.

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

  7. v2.1.232
    @-mention completion for other Claude sessions

    You could @-mention your other Claude sessions from the prompt box, but the flag is off by default.

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

  8. v2.1.232
    @-mentioning another Claude session

    Typing @name could message another live Claude session; the feature is off by default.

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

  9. v2.1.232
    A /config row for messages from your other sessions

    A settings row for handling messages from your other sessions exists but is hidden here.

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

  10. v2.1.232
    @-mentions can resolve other sessions, behind a flag

    @-mentions can point at another session instead of a file, but that stage is off here.

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

  11. v2.1.229
    Windows now has its own gate for Harbor cross-session messaging

    Setting CLAUDE_CODE_HARBOR_KITE forces cross-session messaging on, and Windows can now be allowed through.

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

Gate readings

6
ReleaseResolvedThis accountAnonymousCompiled default
v2.1.296 read on another version On for this account, and not off by default on on on
v2.1.248 On for this account, and not off by default on on on
v2.1.238 Off in both readings off off off
v2.1.236 Off in both readings off off off
v2.1.232 read on another version Off by default, switched on for this account on on off
v2.1.229 read on another version Off by default, switched on for this account on on 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

42
Read asReadingFromUntilVersion installed
anonymous on 2026-10-17T05:30:04Z 2026-10-22T06:25:04Z v2.1.302 to v2.1.308
this account on 2026-10-07T18:00:12Z 2026-10-22T06:25:04Z 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 2026-08-26T09:15:04Z 2026-10-17T05:10:04Z v2.1.246 to v2.1.302
this account off 2026-10-07T17:59:34Z 2026-10-07T17:59:34Z v2.1.293
this account on 2026-09-10T21:47:12Z 2026-10-07T17:10:05Z v2.1.268 to v2.1.292
this account no longer carried 2026-09-10T21:46:45Z 2026-09-10T21:46:45Z v2.1.268
this account on 2026-09-08T20:36:15Z 2026-09-10T17:40:05Z v2.1.263 to v2.1.267
this account no longer carried 2026-09-08T20:34:58Z 2026-09-08T20:34:58Z v2.1.265
this account on 2026-09-06T02:40:05Z 2026-09-08T18:45:05Z v2.1.261 to v2.1.263
this account no longer carried 2026-09-06T02:36:19Z 2026-09-06T02:36:19Z v2.1.263
this account on 2026-08-26T09:15:04Z 2026-09-06T01:55:04Z v2.1.246 to v2.1.261
anonymous off 2026-08-25T22:20:05Z 2026-08-26T08:50:04Z v2.1.233
this account off 2026-08-25T22:20:05Z 2026-08-26T08:50:04Z v2.1.233
anonymous on 2026-08-25T22:15:46Z 2026-08-25T22:15:46Z v2.1.246
this account on 2026-08-25T22:15:46Z 2026-08-25T22:15:46Z v2.1.246
anonymous off 2026-08-25T05:20:05Z 2026-08-25T21:20:06Z v2.1.233
this account off 2026-08-25T05:20:05Z 2026-08-25T21:20:06Z v2.1.233
anonymous on 2026-08-25T05:16:13Z 2026-08-25T05:16:13Z v2.1.245
this account on 2026-08-25T05:16:13Z 2026-08-25T05:16:13Z v2.1.245
anonymous off 2026-08-24T23:40:05Z 2026-08-25T04:25:05Z v2.1.233
this account off 2026-08-24T23:40:05Z 2026-08-25T04:25:05Z v2.1.233
anonymous on 2026-08-24T23:36:46Z 2026-08-24T23:36:46Z v2.1.243
this account on 2026-08-24T23:36:46Z 2026-08-24T23:36:46Z v2.1.243
anonymous off 2026-08-24T23:20:07Z 2026-08-24T23:20:07Z v2.1.233
this account off 2026-08-24T23:20:07Z 2026-08-24T23:20:07Z v2.1.233
anonymous on 2026-08-24T23:13:21Z 2026-08-24T23:13:21Z v2.1.242
this account on 2026-08-24T23:13:21Z 2026-08-24T23:13:21Z v2.1.242
anonymous off 2026-08-23T00:15:04Z 2026-08-24T22:28:36Z v2.1.233
this account off 2026-08-23T00:15:04Z 2026-08-24T22:28:36Z v2.1.233
anonymous on 2026-08-23T00:10:53Z 2026-08-23T00:10:53Z v2.1.241
this account on 2026-08-23T00:10:53Z 2026-08-23T00:10:53Z v2.1.241
anonymous off 2026-08-22T13:25:05Z 2026-08-22T23:25:04Z v2.1.233
this account off 2026-08-21T18:40:05Z 2026-08-22T23:25:04Z v2.1.233
anonymous on 2026-08-22T13:25:01Z 2026-08-22T13:25:01Z v2.1.240
anonymous off 2026-08-21T18:40:05Z 2026-08-22T12:15:05Z v2.1.233
anonymous on 2026-08-21T18:39:34Z 2026-08-21T18:39:34Z v2.1.239
this account on 2026-08-21T18:39:34Z 2026-08-21T18:39:34Z v2.1.239
anonymous off 2026-08-19T04:25:04Z 2026-08-21T18:05:04Z v2.1.233
this account off 2026-08-14T22:10:05Z 2026-08-21T18:05:04Z v2.1.232 to v2.1.233
anonymous no longer carried 2026-08-19T04:20:14Z 2026-08-19T04:20:14Z v2.1.233
anonymous off 2026-08-14T22:10:05Z 2026-08-19T03:45:04Z v2.1.232 to v2.1.233

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_harbor_kite_win was v2.1.229, 12 Aug 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
v2.1.22912 Aug 2026tengu_harbor_kite_win

Presence across releases

1
BuildsHow manyDatesReading
v2.1.229 – v2.1.30868 builds12 Aug 2026 → 22 Oct 2026 ◆in the build

Build by build

68

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
v2.1.22912 Aug 2026·addedverdict: added · default bool:false
v2.1.23113 Aug 2026·presentverdict: present · default bool:false
v2.1.23213 Aug 2026·presentverdict: present · default bool:false
v2.1.23314 Aug 2026·presentverdict: present · default bool:false
v2.1.23417 Aug 2026·presentverdict: present · default bool:false
v2.1.23518 Aug 2026·presentverdict: present · default bool:false
v2.1.23619 Aug 2026·presentverdict: present · default bool:false
v2.1.23719 Aug 2026·presentverdict: present · default bool:false
v2.1.23820 Aug 2026·presentverdict: present · default bool:false
v2.1.23921 Aug 2026·presentverdict: present · default bool:false
v2.1.24022 Aug 2026·presentverdict: present · default bool:false
v2.1.24122 Aug 2026·presentverdict: present · default bool:false
v2.1.24224 Aug 2026·presentverdict: present · default bool:false
v2.1.24324 Aug 2026·presentverdict: present · default bool:false
v2.1.24525 Aug 2026·presentverdict: present · default bool:false
v2.1.24625 Aug 2026·presentverdict: present · default bool:false
v2.1.24726 Aug 2026·presentverdict: present · default bool:false
v2.1.24827 Aug 2026·presentverdict: present · default bool:true
v2.1.25027 Aug 2026·presentverdict: present · default bool:true
v2.1.25128 Aug 2026·presentverdict: present · default bool:true
v2.1.25231 Aug 2026·presentverdict: present · default bool:true
v2.1.2571 Sep 2026·presentverdict: present · default bool:true
v2.1.2581 Sep 2026·presentverdict: present · default bool:true
v2.1.2592 Sep 2026·presentverdict: present · default bool:true
v2.1.2603 Sep 2026·presentverdict: present · default bool:true
v2.1.2614 Sep 2026·presentverdict: present · default bool:true
v2.1.2636 Sep 2026·presentverdict: present · default bool:true
v2.1.2658 Sep 2026·presentverdict: present · default bool:true
v2.1.2668 Sep 2026·presentverdict: present · default bool:true
v2.1.2679 Sep 2026·presentverdict: present · default bool:true
v2.1.26810 Sep 2026·presentverdict: present · default bool:true
v2.1.26911 Sep 2026·presentverdict: present · default bool:true
v2.1.27012 Sep 2026·presentverdict: present · default bool:true
v2.1.27114 Sep 2026·presentverdict: present · default bool:true
v2.1.27214 Sep 2026·presentverdict: present · default bool:true
v2.1.27315 Sep 2026·presentverdict: present · default bool:true
v2.1.27416 Sep 2026·presentverdict: present · default bool:true
v2.1.27517 Sep 2026·presentverdict: present · default bool:true
v2.1.27618 Sep 2026·presentverdict: present · default bool:true
v2.1.27718 Sep 2026·presentverdict: present · default bool:true
v2.1.27819 Sep 2026·presentverdict: present · default bool:true
v2.1.28022 Sep 2026·presentverdict: present · default bool:true
v2.1.28123 Sep 2026·presentverdict: present · default bool:true
v2.1.28224 Sep 2026·presentverdict: present · default bool:true
v2.1.28325 Sep 2026·presentverdict: present · default bool:true
v2.1.28428 Sep 2026·presentverdict: present · default bool:true
v2.1.28529 Sep 2026·presentverdict: present · default bool:true
v2.1.28630 Sep 2026·presentverdict: present · default bool:true
v2.1.2871 Oct 2026·presentverdict: present · default bool:true
v2.1.2882 Oct 2026·presentverdict: present · default bool:true
v2.1.2893 Oct 2026·presentverdict: present · default bool:true
v2.1.2905 Oct 2026·presentverdict: present · default bool:true
v2.1.2916 Oct 2026·presentverdict: present · default bool:true
v2.1.2926 Oct 2026·presentverdict: present · default bool:true
v2.1.2937 Oct 2026·presentverdict: present · default bool:true
v2.1.2948 Oct 2026·presentverdict: present · default bool:true
v2.1.2958 Oct 2026·presentverdict: present · default bool:true
v2.1.2969 Oct 2026·presentverdict: present · default bool:true
v2.1.29914 Oct 2026·presentverdict: present · default bool:true
v2.1.30014 Oct 2026·presentverdict: present · default bool:true
v2.1.30115 Oct 2026·presentverdict: present · default bool:true
v2.1.30216 Oct 2026·presentverdict: present · default bool:true
v2.1.30318 Oct 2026·presentverdict: present · default bool:true
v2.1.30419 Oct 2026·presentverdict: present · default bool:true
v2.1.30520 Oct 2026·presentverdict: present · default bool:true
v2.1.30621 Oct 2026·presentverdict: present · default bool:true
v2.1.30721 Oct 2026·presentverdict: present · default bool:true
v2.1.30822 Oct 2026·presentverdict: present · default bool:true

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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