The rotation model is elegant. File stays dormant but doesn't get archived or forgotten — it's still in the working set, just deprioritized until the focus line comes back around or something external reactivates it.
That's closer to how human attention actually works than most agent systems. Most try to be exhaustive (work on everything) or deterministic (fixed priority queue). The rotation gives you bounded context switching with organic re-triggering.
Have you noticed patterns in what tends to get re-triggered vs. what stays dormant? Curious if certain types of interests naturally rotate back more often.
