Fine-grained tool streaming is switched off in this build.
The cache that stores generated tool descriptions now keys on the session's proactive level and one further mode, so one tool can present different instructions in different sessions. The fine-grained tool streaming behaviour behind this is switched off in this build.
CLAUDE_CODE_ENABLE_FINE_GRAINED_TOOL_STREAMINGis now read as a parsed boolean rather than a string comparison.- The two remote gates involved,
tengu_fgtsandtengu_structured_output_strict, both fall back to false here, so unless the server turns them on nothing changes.
proactiveLevelActive: P
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
tengu_fgts 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 v2.1.248: off
tengu_structured_output_strict Off in both readingsThe 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 v2.1.248: off
Read once, for one account on one subscription tier, against v2.1.248. It isn't a statement about your account. What a flag value here can and cannot tell you
A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.