The official Anthropic account @ClaudeDevs posted on X today (August 8), announcing that starting with Claude Code v2.1.224, sessions can send messages to one another.
According to the official introduction, starting with this version of Claude Code, different sessions can send messages, updates, and other relevant information to one another, making it easier for users to coordinate different parts of a project across multiple sessions.
ITHome's translation of the official documentation is as follows:
Cross-session messaging allows Claude to pass messages from one Claude Code session to another. When changes in one session break something that another session is building, Claude can issue a warning before the user notices. When one session resolves an issue encountered by another session, Claude can send the answer to the other session.
Anthropic said the best use cases for this new feature include handing off investigation findings, coordinating parallel worktrees, checking the status of long-running work, and replying across machines.