Rather than blending signals into a composite score, the stack splits into modules that each answer one question and nothing else: direction, path quality, economic magnitude, risk distance, and market efficiency.
Structure
Flow MA Core answers direction. Trend Regime Gate answers path quality. Leg Extension answers whether the move is economically large enough to be worth taking. RS Volatility Stop answers how far away risk sits. Tradeability Gate answers whether the market is efficient enough right now to act at all.
Entries require every condition to agree; exits fire on any single one. The asymmetry is deliberate — the cost of missing a trade and the cost of holding a bad one are not the same.
Calibration
Thresholds are calibrated against empirical null distributions rather than percentile ranks. Percentile ranks fire uniformly by construction and therefore carry no information about whether anything unusual is happening; a null distribution tells you how surprised to be.
The whole stack is non-repainting: intrabar signals are monotone non-decreasing within the live bar, so a signal that appears cannot quietly un-appear before the close.