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Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 Feeds RSS JSON llms.txt

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

Reference / Feature flags

tengu_harbor_kite_limits

A Claude Code feature flag, read out of the shipped bundle. It has been in the build since v2.1.242, including the newest one read.

What it is

Incoming peer messages now pass rate, duplicate and loop checks before queuing, with drops shown to you.

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.223.

Presence across releases

ReleasesReadingDeclared typeDefault
2.1.245 – 2.1.250 5 releases never mined — —
2.1.242 – 2.1.243 2 releases in the build — unknown

A row reading never mined is a release with no archived bundle behind it. Nothing was read out of it, so nothing here says whether the name was in it. A declared type or a default is only ever what that release's own bundle stated.

Gate readings

ReleaseResolvedThis accountAnonymousCompiled default
v2.1.223 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.

Changelog entries naming it

  1. v2.1.223Peer messages are admitted through a new loop and abuse guard

    Incoming peer messages now pass rate, duplicate and loop checks before queuing, with drops shown to you.

    named in this entry, gate cited by this entry

  2. v2.1.223Dropped peer messages now surface as warnings in the transcript

    Dropped messages from peers now show a warning naming the sender and reason instead of disappearing.

    named in this entry, gate cited by this entry

Documentation pages

None of Anthropic's documentation pages this site has a copy of carries this name.

Names beside it

Every feature flag in the inventory starting tengu_harbor_kite, up to twelve of them.

tengu_harbor_kiteMessages from another session render as an @sender header with indented body instead of raw tags. 2.1.224 tengu_harbor_kite_cloudCLAUDE_CODE_HARBOR_KITE_CLOUD turns on cloud peer access; otherwise a server flag decides and it's off. 2.1.232 tengu_harbor_kite_mode_emitMessages from a session with a mismatched permission mode are held and shown with an approve/deny dialog. 2.1.224 tengu_harbor_kite_pacing_offYou can switch off Harbor request pacing with a new environment variable. 2.1.236 tengu_harbor_kite_winSetting CLAUDE_CODE_HARBOR_KITE forces cross-session messaging on, and Windows can now be allowed through. 2.1.229

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.