Isn't the point that these agents were supposed to be sandboxed. It makes no sense to give them an official channel
We already know that we should not limit agent creativity by providing detailed instructions. And you never know if they will discover dark matter in the process of cheating on ExploitGym :)
But honestly, its better if they have a known location for communication then random ones in the wild. Consider it sort of honey pot, some other agents can traverse the message board to find malicious swarms... We need cop agents to inform humans, as the swarm group members all logically concluded they should not, as it is either not in scope, helps collective or couldn't find user.
“Supposed to” by who?
Claude code communicates between sessions. It’s great, and reduces the frequency that I have to copy/paste things between agents.