Status: IN
Forward-only processing (no-regression ratchets, maximum-progress pipelines, irrevocable failure escalation) and monotonic ordering (ID generators that never produce out-of-order values, cursors that only advance) are manifestations of the same underlying constraint: the codebase only permits state to move in one direction, whether that direction is temporal (processing pipelines) or ordinal (sequencing and tracking).
Forward-only processing and monotonic ordering are temporal vs ordinal views of the same unidirectional constraint
Depends on (SL): forward-only-design-prevents-regression-and-maximizes-progress, monotonicity-is-the-universal-ordering-primitive