Completed-bar signals; following-open fills with slippage. One position, 100% notional allocation, no leverage. Stop wins when both levels touch. Stop gaps fill at open; remaining positions close at final close. Entry and exit fees apply. Crossover is long only; GS–V2 supports long and short. Borrowing, funding, contract multipliers and exchange margin are not modeled. Values use the instrument’s quote currency. Date filters run before warm-up; actual coverage appears with each result. Profit factor is undefined without losing trades.

GS–V2 is a native port, not a Pine runtime. Range retests require a later candle; entry-candle hindsight exits are removed. Write rules supports the example crossover grammar; JSON accepts the documented fields. Arbitrary Pine/Python and unrestricted natural-language strategy compilation are not supported.