Jev Sentinel reads an action an agent is about to take and scores it against the task that agent was given. The result is allow, ask a person, or block, with a short reason.
A check command can show a block for reading a private key when the job is fixing a login form.
It was built at the San Francisco Jev hackathon.
What you get
- Python source
- Allow, ask, or block, with a short reason
- A hook for Claude Code or Codex






