La couche méta10 min de lecture
Meta-Prompting in Production: One File the Agent Can Touch, One Verifier It Can't
One AI writing prompts for another sounds like leverage until you watch it fail: an 80-node workflow that repeated every mistake, re-paid every failed run, and trusted every generated instruction. Tuning the meta-prompt never fixed it. A three-layer contract did: a verifier the generator can't touch, domain facts it can't ignore, generation left free in the middle. Two production failures in its first 24 hours stress-tested exactly that.