Claude Code now lets sessions talk to each other on macOS

Anthropic released Claude Code v2.1.224, enabling cross-session messaging on macOS and Linux so that different Claude Code sessions can share findings, ask questions, and coordinate work. The feature is designed for handing off findings, coordinating parallel worktrees, getting status from long-running tasks, and replying across machines, but it does not handle permission requests or configuration changes.

Users running the latest version of Claude Code on macOS and Linux can now have their sessions message each other to share findings, ask questions, and coordinate work. Here are the details. Claude Code gets cross-session messaging Earlier today, Anthropic announced a feature that will likely be very welcome to users who tend to run multiple Claude Code sessions at once. As of Claude Code v2.1.224, different sessions can message each other with updates and other relevant information, which can be especially useful when the user has multiple sessions working on different parts of the same project. From Anthropic’s documentation of the new feature: Cross-session messaging lets Claude deliver a message from one of your Claude Code sessions to another. When a change in one session breaks what another is building on, Claude can warn that session before you notice. When one session settles a question another is blocked on, Claude can send the answer across. Anthropic says the best use cases for the new feature include handing over a finding, coordinating parallel worktrees, getting status from long-running work, and replying across machines. The company adds that users don’t need to worry about composing the message itself. Rather, the prompt can include only the content they want to get across, and Claude https://9to5mac.com/guides/claude/ will write the actual message. Importantly, cross-session messaging doesn’t work for approving permission requests or changing configurations. Commands such as /compact arrive as plain text rather than an actual command, and if acting on the message requires a permission, the receiving session will still prompt the user for approval. To learn more about Claude Code’s new cross-session messaging, follow this link https://code.claude.com/docs/en/cross-session-messaging . Worth checking out on Amazon Geoffrey Cain – ‘Steve Jobs in Exile’ https://amzn.to/4v3CS5Q David Pogue – ’Apple: The First 50 Years’ https://amzn.to/46Y3nQj MacBook Neo https://amzn.to/47vJmkn Logitech MX Master 4 https://amzn.to/3KmIQN7 AirPods Pro 3 https://www.amazon.com/Apple-Cancellation-Translation-Headphones-High-Fidelity/dp/B0FQFB8FMG?tag=marcmendes-20 AirTag 2nd Generation – 4 Pack https://amzn.to/4sewc3a Apple Watch Series 11 https://amzn.to/46VomDB Wireless CarPlay adapter https://www.amazon.com/gp/product/B0F6T6N2B1?tag=marcmendes-20 FTC: We use income earning auto affiliate links. More. https://9to5mac.com/about/ affiliate our homepage http://9to5mac.com/ for all the latest news, and follow 9to5Mac on exclusive stories https://9to5mac.com/feature/exclusive/ , reviews https://9to5mac.com/guides/review/ , how-tos https://9to5mac.com/guides/how-to/ , and subscribe to our YouTube channel https://www.youtube.com/9to5mac