Show HN: I built a 0.07ms Python firewall to stop AI hallucinations

Hey HN, I was building other AI products and kept hitting the same wall: agents hallucinate and constantly forget context. I ended up building a ledger just to track what they were actually doing. Once that ledger was logging everything, I realized I could use it to enforce rules. Exogram is the result. It is a deterministic firewall that intercepts agent tool calls (like MCP) using pure Python logic gates. It catches bad schemas and destructive actions in 0.07ms. There is zero AI in the security loop. I load-tested it yesterday and hit 137 RPS on a single container with zero dropped payloads. Sandbox: https://exogram.ai/proving-ground https://exogram.ai/proving-ground Repo: https://github.com/Richard-Ewing/exogram-protocol-rfc https://github.com/Richard-Ewing/exogram-protocol-rfc I just built the Proving Ground UI today to visualize the 0.07ms block in real time. Let me know if the split-screen demo makes sense, or if you manage to bypass the gates. Richard