An alternate prompt wording for two tools exists but stays off unless you set an environment variable.
Alternate tool prompt variants sit behind CLAUDE_CODE_PARCHMENT_FERN and a gate defaulting to false.
tengu_parchment_fern 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 v2.1.223: not a boolean we can read
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.
tengu_velvet_mallet 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 v2.1.223: not a boolean we can read
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 v2.1.223. It isn't a statement about your account. What a flag value here can and cannot tell you
What's wrong with this entry?
Two model-scoped predicates were added that swap in an alternate prompt variant for their tools. Off by default in this build.
- Enabled by the environment variable
CLAUDE_CODE_PARCHMENT_FERN, a per-modelopus_5_prompt_bundlecapability, a settings key, or the gatetengu_parchment_fern, which falls back to false. - One of the two predicates is additionally conditioned on the existing per-model
tengu_velvet_malletgate. - When active, the variants appear as marker prefixes in the prompt-cache key.
tengu_parchment_fern
Strings lifted out of the shipped bundle, so the claim above can be checked against them.