Signals

A signal rule decides when to enter a trade. The engine evaluates the rule on every closed candle; if the rule returns true, a trade opens at that candle's close.

There are two types of rule: buy (open a long) and sell (open a short). You can define one, the other, or both.

Signal templates

The form offers four ready-made templates plus a manual escape hatch.

1. Crossover

Open long when a fast moving average crosses above a slow one; open short on the opposite cross.

Example — EMA(10) crossing EMA(30):

{
  "buy":  { "op": "cross_above", "fast": "ema_fast", "slow": "ema_slow" },
  "sell": { "op": "cross_below", "fast": "ema_fast", "slow": "ema_slow" }
}

Best for trending markets.

2. RSI threshold

Open long when RSI is below an oversold level; open short when above an overbought level.

{
  "buy":  { "op": "lt", "left": "rsi_14", "right": 30 },
  "sell": { "op": "gt", "left": "rsi_14", "right": 70 }
}

Best for ranging markets.

3. Supertrend

Trade in the direction of a Supertrend flip. Uses the indicator's built-in buy_signal / sell_signal series.

{
  "buy":  { "op": "ref", "id": "st_1.buy_signal" },
  "sell": { "op": "ref", "id": "st_1.sell_signal" }
}

4. UT Bot

Same idea as Supertrend but using UT Bot's flip signals. More aggressive — fires more often.

{
  "buy":  { "op": "ref", "id": "utbot_1.buy_signal" },
  "sell": { "op": "ref", "id": "utbot_1.sell_signal" }
}

5. Manual

If none of the templates fit, write the rule yourself in JSON. You can combine operators with and / or:

{
  "buy": {
    "and": [
      { "op": "cross_above", "fast": "ema_fast", "slow": "ema_slow" },
      { "op": "gt", "left": "adx_14", "right": 25 }
    ]
  }
}

Operators reference

OperatorMeaningExample
gt lt gte lte eq neqCompare two values{"op":"gt","left":"rsi_14","right":70}
cross_aboveFast crossed up through slow on this bar{"op":"cross_above","fast":"ema_fast","slow":"ema_slow"}
cross_belowFast crossed down through slowsame shape
refReference a precomputed boolean series{"op":"ref","id":"st_1.buy_signal"}
risingA series is rising vs previous bar{"op":"rising","id":"close"}
fallingA series is fallingsimilar
and or notBoolean combinators{"and":[A,B]}

When does a trade actually open?

When the rule returns true for a candle, the engine opens a trade at the close price of that candle for the next bar. There's a short delay between signal and execution to mirror real markets where you can't act on a candle until it has closed.

If a trade is already open, new signals on the same bar are ignored — the V1 engine allows only one open position at a time.

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