The effort-downgrade nudge now works per model instead of just one, but each model needs its own flag turned on.
The effort-medium nudge, previously hardcoded to a single model and level, is now driven by a per-model config table (v2). It currently covers claude-opus-5 (nudging from high) and claude-fable-5-1 (nudging from high, xhigh, or max), with each model gated by its own flag.
tengu_radiant_island 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 v2.1.263: no gate table built for this version
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 v2.1.263. It isn't a statement about your account. What a flag value here can and cannot tell you