PF probe 89 - trail_points 8 + far stop/limit

// This Pine Script® code is licensed under Apache-2.0
// SPDX-License-Identifier: Apache-2.0
// © PineForge contributors 2026
//
// PF probe 89 - trail_points without trail_offset, alongside stop+limit
//
// Purpose: figure out what TradingView's broker actually does with
// `trail_points` when `trail_offset` is missing. TV's parser rejects
// strategy.exit if it has ONLY `trail_points`, so the legal way to use
// `trail_points` without an explicit `trail_offset` is alongside `stop`
// and/or `limit` — exactly the exit shape used by a community-style
// scalping strategy. This probe mirrors that shape with controlled,
// fixed-percent stop and limit far from entry so the trail (or TV's
// interpretation of it) is the only thing that can fire on the entry
// bar's intra-bar path.
//
// trail_points=8 matches the int(atr)≈8 captured at the scalping shape's
// failing entry bar (trade 1); engine fires at entry+$0.08 (activation
// level) and TV fires at entry+$0.97. probe 88 already proved engine + TV
// agree 100% with trailTicks=20 in the same shape, so this probe
// specifically dials trailTicks down to 8 to see whether the gap is a
// small-trail edge case or something deeper about activation handling.
//
// TV setup: 15m chart, same symbol/window as data/ohlcv_ETH-USDT-USDT_15m.csv.
// Export TradingView "List of trades" to trades.csv in this folder.
//@version=6
strategy("PF probe 89 - trail_points 8 + far stop/limit",
     shorttitle="PF_P89_TRAIL8", overlay=true,
     initial_capital=1000000,
     commission_type=strategy.commission.percent, commission_value=0, slippage=0,
     default_qty_type=strategy.fixed, default_qty_value=1, pyramiding=1,
     process_orders_on_close=false)

trailTicks = 8

if hour == 8 and minute == 0 and strategy.position_size == 0
    strategy.entry("L", strategy.long, qty=1, comment="entry long")
    strategy.exit("LX", "L",
         stop=close * 0.95,
         limit=close * 1.05,
         trail_points=trailTicks,
         comment="trail8 + far stop/limit")

if hour == 20 and minute == 0 and strategy.position_size == 0
    strategy.entry("S", strategy.short, qty=1, comment="entry short")
    strategy.exit("SX", "S",
         stop=close * 1.05,
         limit=close * 0.95,
         trail_points=trailTicks,
         comment="trail8 + far stop/limit")