Keep gloved in a systemd-owned supervisor leaf while creating sibling session cgroups under the empty delegated parent. Under mapped-root supervisors, attach blocked children before releasing their existing start gate instead of combining nested UID mapping with CLONE_INTO_CGROUP.
Run the Linux service in a delegated user and mount namespace and preserve precise owner-local launch diagnostics while keeping remote denials generic.
Accept validated v2 session plans without bypassing direct-write consent, and bind explicit native runtimes through the same managed launch and receipt boundary.
