Claude Code sessions can now message each other
Two open sessions can talk: Claude finds the others with ListAgents and sends a message through SendMessage, either because you asked or on its own when a change in one session affects the work in another. Only text Claude writes crosses over — never conversation history, never files. Since version 2.1.232 you can also address a session directly by typing @ followed by its name. The feature runs on macOS and Linux and needs version 2.1.224 or later, and /list-agents shows what is available. It pays off most when you keep the frontend and backend of the same project in separate sessions.
Source
Sesije Claude Codea sada mogu da razmjenjuju porukeZvanična dokumentacija za Claude Code · Original published August 7, 2026
Two open Claude Code sessions can now exchange messages, with you no longer acting as the courier.
How it works
Claude finds other sessions with the ListAgents tool and sends a message through SendMessage, either because you asked or on its own when a change in one session affects the work in another. Only text Claude writes crosses over — never conversation history, never files.
How to use it
Since version 2.1.232 you can address a session directly by typing @ followed by its name. The /list-agents command shows what is available. The feature runs on macOS and Linux and needs version 2.1.224 or later.
Where it actually pays off
It pays off most when you keep the frontend and backend of the same project in separate sessions. A change to the API contract in one session reaches the other immediately, without you retelling it and without carrying types from window to window.
Sources
Related
A proxy that stripped one header was doubling Claude Code's API bill
Version 2.1.239 fixes streaming on Bedrock behind proxies that remove the response Content-Type header. Claude Code silently fell back to re-running every turn without streaming, and each turn was billed twice. The same release makes cost estimates show the 1.1× premium that data-residency workspaces pay.
Anthropicverified
ChatGPT now reads and sends your Apple Messages, on the Mac only
A plug-in in the ChatGPT desktop app reads and searches your iMessage, SMS and RCS threads and sends messages through Messages on your behalf. By default nothing goes out until you approve both the text and the recipients. There is a switch that removes that step, and OpenAI's own documentation argues against using it.
OpenAIverified
GitHub Copilot moved into Slack and Microsoft Teams on the same day
Both shipped on August 21 in public preview. Mention @GitHub in a channel and the agent triages issues, investigates failures, writes changes in a cloud sandbox and opens a pull request, with the conversation attached. The interesting part is not the capability list, which is familiar, but the room it moved into: the place where work gets discussed rather than written.
GitHubverified