What are the biggest challenges in multi-agent system development?

I’ve been doing it for a long time. I’ve had zero issues. Have you been having problems or are you attempting to anticipate problems and create solutions for them? I implemented what I’ve called a Cortex module. It essentially makes all the decisions and decides what bot does what. Meaning the model I talk to tells the other models what to do via tool calls. They all share 1 source of truth in memory.