A model override declared by a skill or command is now ignored when the model isn't supported under the current auto or fast mode.
When a slash-command or skill declares its own model override, Claude Code now checks whether that model is actually supported under the current auto-mode/fast-mode configuration before applying it. If the model isn't supported in auto mode, or if the auto-mode disableFastMode setting (from tengu_auto_mode_config) rules it out, Claude Code logs a warning and keeps the session's current model instead of switching. Previously the override was applied unconditionally whenever a skill or command specified one.
tengu_auto_mode_config 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 v2.1.259: 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 v2.1.259. It isn't a statement about your account. What a flag value here can and cannot tell you