Setting CLAUDE_CODE_SKILL_PROPOSALS enables the tool that proposes new skills on its own. Otherwise it needs the tengu_propose_skills flag, which is off by default in this build, plus a remote environment. The variable is also passed down to child and plugin processes.
Details
CLAUDE_CODE_EVAL_INTERVIEW_SESSION is now stripped from the environment given to spawned processes, alongside the other session markers.
Evidence
CLAUDE_CODE_SKILL_PROPOSALS
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Nothing 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 v2.1.233: off
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.