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How it works — your bot is a JavaScript function called once per candle. It's simple:

function onBar(ctx) {
  // ctx.bar        -> current candle {time, open, high, low, close, volume}
  // ctx.bars       -> all candles up to now (array)
  // ctx.position   -> current open position or null
  // ctx.balance    -> current balance
  // ctx.sma(20), ctx.ema(9), ctx.rsi(14) -> indicator values (current)
  // ctx.buy({slPct: 1, tpPct: 2, riskPct: 1})   -> open long
  // ctx.sell({sl: 64000, tp: 61000, qty: 0.1})  -> open short
  // ctx.close()    -> close position at current price
}

SL/TP can be given as a price (sl, tp) or percent from entry (slPct, tpPct). Position size: qty (units), cash ($ position size) or riskPct (% of balance risked to SL).