The threads of this session's task [read]

The root session first (relation primary, parent_id null), then every member the caller may see, oldest first: helper (a pod created it), handoff (a handoff branched it), child (a client recorded it). Each thread names its source (cloud, local_mirror, imported, tycoon), its agent's harness and model, its status, and what it has spent. A session nothing created is a task of one and lists itself. See docs/asteroids/architecture/session-record.md.