Pre-emptive Git Commit Trailer Injection / Claude Code v2.1.0

What

Git commit attribution trailers are now injected into the commit command before execution, rather than amending commits after the fact.

Details

Uses PreToolUse hook to intercept git commit commands
Injects Claude-Generated-By, Claude-Steers, Claude-Permission-Prompts, Claude-Escapes, and Claude-Plan trailers directly into the commit message
Supports both HEREDOC-style commit messages and quoted -m style messages
Eliminates race conditions and edge cases from the previous post-commit amendment approach
Tracks injection state via trailersInjectedForCurrentCommit flag

Evidence

x$7() at line 530968 (contains "Attribution hook: PreToolUse - Injecting trailers into git commit command")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

Pre-emptive Git Commit Trailer Injection