What
An internal feature switch called tengu_rosy_flute was renamed inside the code. Claude Code handles it the same way as before.
Why
Nothing changes for you. This entry records the rename so it is not mistaken for a new feature.
Feature flag
tengu_rosy_flute Not enough to sayNothing 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 v2.1.307: on
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.
Read once, for one account on one subscription tier, against v2.1.307. It isn't a statement about your account. What a flag value here can and cannot tell you