The tool description Claude reads for the shared artifact database gains a People paragraph. It explains that documents and live events may refer to a person by an opaque id: u_ followed by 22 characters.
It also says Claude can call the tool with action: "profiles", the artifact url and 1 to 64 ids. The result says, among other details, whether each person is a guest.
Why
Claude now has a documented way to turn those ids into information about the people they stand for, instead of being left with bare codes.
