Claude Code Adds Cross-Session Messaging on macOS

Aug 8, 2026 · 10:22 AM UTC ·1 min read · 0 reactions · 0 comments · 4 views

TL;DR · WeSearch summary

Claude Code has been updated to include cross-session messaging on macOS, allowing separate coding sessions to communicate directly. This feature removes the need to manually copy context between Terminal windows and is powered by two new tools: ListAgents and SendMessage. The update is part of Claude Code version 2.1.224, which also includes 31 other changes, and is available for macOS and Linux.

Key facts

▪The cross-session messaging feature allows separate coding sessions to message each other directly without manually copying context.
▪The feature is powered by two new tools: ListAgents, which finds other active sessions, and SendMessage, which delivers the message.
▪Messages between sessions on the same Mac stay local and never reach Anthropic's servers, and cross-session messaging requires macOS or Linux with Claude Code 2.1.224 or later.

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Publication time	Sat, 08 Aug 2026 03:22:46 PDT
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Opening excerpt (first ~120 words) tap to expand

Claude Code Adds Cross-Session Messaging on macOSSaturday August 8, 2026 3:22 am PDT by Hartley CharltonAnthropic has updated Claude Code so that separate coding sessions can message each other directly, removing the need to manually copy context between Terminal windows. The company shipped the feature in Claude Code version 2.1.224, released on Friday for macOS and Linux. Two new tools power it: ListAgents, which finds other active sessions running on the Mac, and SendMessage, which delivers the message. A session that receives one shows it as a labeled card with a link back to the sender. According to Anthropic's documentation, only text passes between sessions, not conversation history, files, or permissions.

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