Cycle residue
The part of route value that survives on closed walks — reversibility and round trips.
Role. Target. Graph node cycle.
This is useful for routes, reversibility, and round trips. It does not derive which transitions are good.
— Frames draft §4.1
Cycle residue is what a state utility cannot see unless the state carries a record of the walk. Inside a deontic admissible region it can still rank learning above rewiring even when endpoints match.
It composes with correction as “route residue inside the region,” not as a second top-level target.