Keep autonomous prompts separate from persisted user messages while retaining
conversation history and queued user attachment routing. Carry verified
checklist evidence across segments and evaluate only changed criteria.
Cancel model streams without interrupting checkpoint database writes. Fence
late worker admission during shutdown, persist accepted queued messages and
attachments, and leave interrupted execution leases recoverable.
Add regressions for prompt selection, cumulative evidence, cancellation I/O,
queued input durability and shutdown recovery. Verify 250 focused tests,
200 real General Assistant conversation rounds, 12 checkpoints across 13
autonomous segments, and pause/resume/disconnect/restart boundaries.
