How Deno’s New Firewall Stops AI Agents from Leaking Passwords

TL;DR AI
2 min readKey summary
Deno open-sourced Claw Patrol, a firewall for AI agents that sits between agents and external systems.
It keeps sensitive credentials like API keys and database passwords at the gateway instead of exposing them to agents.
Claw Patrol can enforce action rules, require human approvals, and monitor agent activity in real time.
The tool also supports secure network options such as Tailscale and WireGuard, with policies defined in HCL.



