Guardian MCP sits between an agent and actions such as browsing, messaging, files, and purchases. Jev answers a few narrow questions about one action. Ordinary code then allows it, asks a parent, blocks it, or escalates.
It was built at the San Francisco Jev hackathon.
What you get
- TypeScript source
- Allow, ask a parent, block, or escalate
- A playground with a marketplace scam scenario






