You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Bash ToolArea: what it touches
ImprovementsKind: in v2.1.314,
ImprovementsSection of the release
What
On macOS, when Claude runs a shell command through its Bash tool, the tool used for terminal commands, Claude Code can now add a small wrapper for git. The wrapper skips past git's global options. If the subcommand is grep, it runs it as /usr/bin/env LC_ALL=C git ..., which uses the plain C locale instead of your language settings. Any other subcommand runs as normal. The wrapper is not added if you already have a git shell function or alias.
It is only added when all of these hold:
The machine is running macOS.
The command text contains both "git" and "grep".
The command is 1000 characters or shorter and contains only ASCII characters.
The command is a simple command, not a more complex shell construct.
No git grep argument matches --p, --op or --textc, or is a short flag containing O, P or f.
Why
It changes how git grep behaves when Claude runs it on a Mac, so its results do not depend on your locale. You will not see the wrapper itself, only its effect.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreemacOS: Changed git grep in most commands that Claude runs to use the C locale, to avoid a reported memory leak in macOS's regex library on…
