LaunchDevelopersAugust 8, 2026

Claude Code adds cross-session messaging between agent sessions

Ships in Claude Code v2.1.224+ on macOS and Linux; sessions discover each other via ListAgents and SendMessage. Claude can message subagents and agent-team teammates, report from long-running migrations/tests, and reply (not initiate) across machines.

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Claude Code adds cross-session messaging between agent sessions — AIBriefs