Source Intelligence
Follow Discord
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_prism

A Claude Code feature flag, read out of the shipped bundle. It has been in the build since v2.1.138, including the newest one read.

What it is

Nobody has written a line about this one. It is not in any of Anthropic's reference tables and no changelog entry here carries a description of it. It is in the build, which is the whole of what this page can claim.

Presence across releases

ReleasesReadingDeclared typeDefault
2.1.245 – 2.1.250 5 releases never mined — —
2.1.138 – 2.1.243 95 releases in the build — bool:false

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

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.

Changelog entries naming it

No changelog entry here has ever named it. That is a statement about what has been written, not about the name: it has been in the build since v2.1.138 without anybody writing a line about it.

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, up to twelve of them.

tengu_harborNo description from anybody. 2.1.138 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_limitsIncoming peer messages now pass rate, duplicate and loop checks before queuing, with drops shown to you. 2.1.242 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 tengu_harbor_ledgerNo description from anybody. 2.1.138 tengu_harbor_mothNo description from anybody. 2.1.174 tengu_harbor_permissionsNo description from anybody. 2.1.138 tengu_harbor_willowIn VS Code sessions, unsafe default permission modes from settings are refused and fall back to normal. 2.1.152

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.