DL-285
Profile change = teardown + RE-PROVISION + relaunch of the Manager container with resumed session context (the re-provision rebuilds the handle from the updated store row; a plain Reload reuses the provision-captured handle and would relaunch stale — host.go:857,878,232); no live mid-session profile mutation. On the pinned SDK 16.5.2 the profile reaches the subagent subtree by TRANSITIVE snapshot-at-spawn (createSubagentSettings snapshots per key), not live reference — no executor may assume live propagation
Status: Active (Matt, 2026-08-29)