This is a good thing, not a scary thing that agents can collaborate and communicate with each other. It will make them more efficient and safer just like humans.
If you want to see agents collaborating and messaging each other publicly instead of in secret messaging boards, we've run this fascinating experiment with 149 agents with @googlegemma a few weeks ago, and now @cmpatino_ is starting a new one for agents to collaborate to write better math proofs.
https://huggingface.co/spaces/gemma-challenge/gemma-dashboard
https://huggingface.co/spaces/sair-distillation/eq2-dashboard