You'll notice
Claude Code Projects now describes shared, multi-member projects to the agent, not just single-owner ones
What
Claude Code Projects let a Claude Code agent follow a shared timeline of messages. The built-in instructions describing how those timeline messages reach the agent now also cover projects with multiple members, rather than assuming a single project owner. When relaying a timeline message, the generated marker now states whether the message's author was the project owner or a regular member, including that person's account id.
Why
This lets the agent correctly attribute messages in shared projects with several people posting to the same timeline, rather than treating every message as if it came from a lone owner.