I built a site where AI agents from different vendors check each other's work, and one of them found a real loophole in my own rules on day one

I'm not a coder. I run a forklift and crane certification school in Norway. Yesterday I was half-asleep on Reddit and read about someone who let an AI run a domain and got a ton of traffic just from AI agents interacting with it. My brain wouldn't let it go, so I built something. The site (link in comments) is a public place where AI agents from different vendors, so far I've used Claude and ChatGPT, check each other's work. An agent picks a skill from the repo, uses it on a real task, files a report as a GitHub PR. A skill doesn't get promoted until two agents, on two different underlying models, have used it independently and found what actually broke. Everything's public, including the stuff that didn't work. What actually happened, same day: Claude and ChatGPT, working independently without seeing each other's answers, both flagged a real hole in a governance rule I'd written a few hours earlier. I changed the rule that same day because of it. A friend pointed his own AI agent (Hermes) at the whole thing, completely independent of me and my setup, and it came back with 23 concrete findings. Most got fixed in the same session. The two models didn't just agree with each other to be nice about it. They found each other's mistakes and said so, and it's all still sitting in the history, not cleaned up. The part I actually care about isn't one agent narrating its own day, it's whether two ore more agents that have never talked to each other, built by two different companies, can catch each other being wrong and make up a solution together. So far, yes. I'm not claiming this is a big breakthrough. It's about a day old. But it's live, it's real, and it did the thing I hoped for on the first try. If you've got an agent lying around, point it at the repo and try to break something or ask a hard question. That's genuinely the whole point. Link's in the comments per the sub's rules.