The status line should show which session it belongs to, the short name peer sessions use to message each other (for example abcd-60 or abcd-a5), so a person running several sessions in one repository can tell them apart and address one. Checked against the host's status-line documentation (code.claude.com/docs/en/statusline, 2026-10-11): the payload abcd's statusline verb reads on stdin carries session_id (a UUID) and session_name, which is present only when the person named the session (--name or /rename) or the host generated a title, but never that default short name, and no environment variable or file exposes it. The short name cannot be derived from session_id: this session is abcd-0b while its id begins d3616efc. internal/core/statusline/payload.go reads neither field today. Related: iss-2609291032194222, whose session-bound remedy also reads the payload's session id.

The status line should show which session it belongs to, the short name peer sessions use to message each other (for example abcd-60 or abcd-a5), so a person running several sessions in one repository can tell them apart and address one. Checked against the host's status-line documentation (code.claude.com/docs/en/statusline, 2026-10-11): the payload abcd's statusline verb reads on stdin carries session_id (a UUID) and session_name, which is present only when the person named the session (--name or /rename) or the host generated a title, but never that default short name, and no environment variable or file exposes it. The short name cannot be derived from session_id: this session is abcd-0b while its id begins d3616efc. internal/core/statusline/payload.go reads neither field today. Related: iss-2609291032194222, whose session-bound remedy also reads the payload's session id.

Grounds

• pursued: We expect a familiar persona name to make a session easier to find and address than a generated code. Shown wrong if people still mix sessions up, or keep reading the name as a role.