The seed agent runs unattended, and the model's context window is finite. brain_guard is the always-on plugin that keeps it healthy — but its real trick is that the seed compacts itself, carrying its cognition across the boundary instead of losing it. This deck walks the whole chain: the two ramps that share one ceiling, the per-job compaction file that holds the cognition about a job, the finalization seal, the clear + inject boundary, the wake reflex that re-grounds the fresh session, and the two-tier Prior Summary chain that keeps a job's whole history available at a fixed cost. Each card is one focused idea, with a clean diagram you can hover and click.
The seed's mind lives on disk — so a clear sheds only the conversation trace, never the cognition.