three codename-style flags, amber_astrolabe, bison_cairn, and larch_cistern, each backed by its own experiment and a matching CLAUDE_CODE_* environment variable override
Several places in the code that used to read the bison_cairn, larch_cistern, and amber_astrolabe flags directly were rewritten to instead read fields off local event objects, such as pollEmptyDispatch and ideSelection.
Why
These are internal flags for gradually rolling out unreleased behavior, so nothing changes for most users yet. The shift away from reading the flags directly at some call sites suggests those particular checks are being replaced by more targeted logic.
Read from
Feature flag
tengu_gorse_ploverOff in both readings
The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.
This account: off · anonymous baseline: off · compiled default in v2.1.275: not a boolean we can read
These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.