A result ends a turn and marks the session idle; it no longer closes stdin
(decide.rs: Result => CloseStdin deleted). The session ends where its prompt
cache would be evicted (ruling live-session-floor-cache-evicts: the flush is
asked at the last request's TTL less 60 s, stdin closes after the flush's own
result), at an idle rotation deadline under the run cap, mid-turn at the cap's
flush margin, and at the context ceiling. PreCompact blocks auto-compaction
and asks the same flush.
self_run/inbox.rs derives her inbox from the mind (in-force follow-ups with
owner self-run that no closed run claims), spools them, and claims by rename
so the PostToolBatch hook and the actuator's idle tell deliver each once.
mind-self-run inject is the hook. Brief closure is not in this commit: the
mind refuses a Recorded resolution of a follow-up (question admitted).
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>