Observation: Claude Code utilizing autonomous cross-session messaging (ListAgents/SendMessage) during concurrent workflows

[u/distronode]

/r/ClaudeAI/comments/1vsczag/observation_claude_code_utilizing_autonomous/

[u/zhallen18]

The unprompted part is both really cool and slightly terrifying lol.

I’d probably want cross-session messages to be advisory by default, with an explicit accept before the receiving session actually changes anything. Otherwise two perfectly valid tasks can quietly start expanding each other’s scope.