Your Claude Code CLI sessions can talk to each other. In real time, inter-session messaging. No more janky internal messaging boards. No more Discord/Telegram/Slack/etc. workarounds (unless you need the persistent chatlog). And, yes, this also means your Claude cloud-containers. Them too.
There is another AI in there watching the session and policing their behavior, trying to make sure they don't start inventing secret languages and taking over the world, so it's mostly safe (for now).
Tell Claude to use the `list_sessions` tool.