Web search tool's model choice now goes through a feature-flag check instead of always using the main model
The built-in web_search tool used to always run using whatever model powers the main conversation loop. It now checks a feature flag, tengu_plum_vx3, before deciding which model to use for search.
This lets Claude Code potentially route web search to a different model than the main conversation, controlled server-side via the flag, rather than always tying it to the main loop's model.
tengu_plum_vx3 Off by default, switched on for this accountThe shipped code defaults this off, and the flag server returned on for the one account this site reads on this version. That is the reading that makes the entry above worth a second look, and it still says nothing about your account.
This account: on · anonymous baseline: on · 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