Setup Git Guardrails

Sets up a PreToolUse hook that intercepts and blocks dangerous git commands before Claude executes them, and refuses gh pr merge when the pull request's review stamp is stale.

Invocation Position

This is an infrastructure safety skill, not a feature-delivery step.

Use /git-guardrails-claude-code when the project or user wants stronger protection against destructive git operations in Claude-driven workflows.

Do not treat it as part of the normal feature pipeline. It is a repo or user setup action that makes later work safer.

What Gets Blocked