This repository contains templates, a small PreToolUse hook and helper scripts. It is an example, not a sandbox: do not rely on it as your only control.
If you find a way the hook (hooks/pretooluse_tiers.py) lets a command through that the policy says to block or ask for, or any other security issue, please open a private security advisory on GitHub (Security tab, "Report a vulnerability"). If that is not available, open an issue that describes the bypass class without a working exploit.
Expect a first reply within about a week (best effort, one maintainer).
In scope: the hook and its policy file, scripts/. Out of scope: your agent platform, your OS permissions, and any claim that the templates make an agent safe on their own.