The Agent Skills Directory

[COMMAND_EXECUTION]: The skill installs a shell script intended to monitor and intercept commands executed via the agent's bash tool. The script uses standard tools like jq and grep to validate command strings against a blocklist.
[PERSISTENCE]: The skill instructions involve modifying the agent's configuration files (.claude/settings.json or ~/.claude/settings.json) to register a PreToolUse hook. While this creates a persistent execution trigger, it is the explicitly stated and benign purpose of the skill to provide safety guardrails.

git-guardrails-claude-code