cafebedouin@gmail.com --- Abstract The trifurcation framework classifies reasoning failures into three operationally distinct types: Type A (drift across reasoning stages), Type B (axiomatic inconsistency), and Type C (indexical underspecification). The taxonomy was originally diagnostic: each type has a corresponding repair (frame-fix, axiom-revise, index-specify), and the diagnostic move is to identify which repair the failure calls … Continue reading When Apparatus Sharpens Taxonomy: What Implementation Granularity Reveals About Type A, B, and C Failures