Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.269 ·

New heron gate feeds an unused-looking breaker-tripped check

New tengu_quiet_heron gate feeds a breaker-tripped check with no found caller in this code

TierUnder the hoodhow much it should matter to you
Useful1my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaInternalswhat it touches
KindInternal Changesin v2.1.269,
Under the hood No documentation found

New tengu_quiet_heron gate feeds a breaker-tripped check with no found caller in this code

What

A new function combines a per-thread "breaker tripped" field with the tengu_quiet_heron feature gate to produce a true/false result. No code calling this function was found in the parts of the code examined.

Why

Since no caller was found, it's unclear what effect this has for a reader right now; it may be groundwork for a feature not yet wired up.

Read from
Feature flag
tengu_quiet_heron Not enough to say

Nothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.

This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.269: off

Read once, for one account on one subscription tier, against v2.1.269. It isn't a statement about your account. What a flag value here can and cannot tell you

What has happened since
Flag reading moved The flag server now returns on for tengu_quiet_heron, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading moved The flag server now returns off for tengu_quiet_heron, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading moved The flag server now returns on for tengu_quiet_heron, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.

See this across every release →

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtNothing has been read about the `tengu_quiet_heron` gate, so whether it is on or off cannot be said; it's also unclear whether this function…
The name it cites is new in this buildNew in this build: tengu_quiet_heron

See this entry in the whole of v2.1.269 →