Anthropic enables Claude Code cross-session messaging for multi-agent coordination

Anthropic's Claude Code v2.1.224 and later now supports messaging between separate sessions on macOS and Linux, enabling one session to alert another when changes break dependent work or when a blocker is resolved. The feature uses ListAgents and SendMessage tools to coordinate across independent agent instances without moving full conversation history or files.

Anthropic enables Claude Code cross-session messaging for multi-agent coordination According to Anthropic's Claude Code documentation, Claude Code v2.1.224 and later now supports messaging between separate sessions on macOS and Linux, allowing one session to alert another when changes break dependent work or when a blocker is resolved. The feature uses ListAgents and SendMessage tools to coordinate across independent agent instances without moving full conversation history or files. Topics Sources - Official Read article https://code.claude.com/docs/en/cross-session-messaging - Social Twitter thread https://twitter.com/ClaudeDevs/status/2085817074816070014 Go deeper This intelligence is sourced automatically from public sources across the web and synthesised by the Prefactor AI pipeline. Stories are reviewed before publication.