Under the hood
Environment variable passthrough list adds AWKPATH, AWKLIBPATH, and DEVELOPER_DIR
What
The list of environment variables Claude Code considers safe to pass through (alongside existing ones like GNUMAKEFLAGS, MFLAGS, and MAKEFILES) now also includes AWKPATH, AWKLIBPATH, and DEVELOPER_DIR.
Why
This lets commands run by Claude Code correctly inherit these variables, which matter for tools like awk (which uses AWKPATH/AWKLIBPATH to find its scripts) and Apple's developer toolchain (which uses DEVELOPER_DIR), instead of having them stripped from the environment.