Archived
Add spawn_subsession / list_subsessions / read_subsession tools that let an agent start child sessions it stays attached to: the child records its parent in the session tree, the parent is notified (as a system-authored custom message that wakes an idle parent and queues behind in-flight work) when the child stops working, and the parent can inspect children's status and result. Gated behind a beta flag, off by default, mirroring spawnSessions: enable via PI_WEB_SUBSESSIONS, the subsessions config key, or the Settings toggle. Also requires spawnSessions. Also fix the release skill so the version step resyncs package-lock.json (npm install --package-lock-only) and the commit step refuses a release where package.json and package-lock.json versions disagree.