█ OVERVIEW PineTunnel is a Pine Script library that re-implements TradingView's strategy.* broker emulator for indicator() scripts. It mirrors the full strategy.* namespace one-to-one — 114 exports: 88 functions, 18 constants and 8 types — covering entries, brackets, trailing stops, OCA groups, pyramiding, reversals, margin calls, the five risk guards and intrabar order processing. Every engine behavior was validated against the Strategy Tester itself, with a dual-engine probe …