Universal Indicator EA for MT5

Hello,

I need a clear, professional, and strictly rule-based MT5 Expert Advisor.

Please follow the specification below exactly as written, without adding extra logic, extra indicators, or personal modifications unless I ask for them later.

The goal is to build a universal EA that can work with any custom indicator that provides signals through buffers.

PROJECT TITLE

Universal Indicator EA for MT5

1) GENERAL IDEA

The EA must work with any custom indicator added by the user, as long as that indicator gives:

• a Buy signal buffer
• a Sell signal buffer

The user will define from the EA inputs:

• Indicator name
• Buy buffer index
• Sell buffer index

The EA must read signals from the selected custom indicator and trade according to the rules below.

2) PLATFORM AND TRADING STYLE

• Platform: MetaTrader 5
• Main intended symbol: XAUUSD / XAUUSDM
• It should still be coded in a way that can work on other symbols
• The EA should work on the chart timeframe
• Only one open position at a time
• No Grid
• No Martingale
• No Hedging
• No averaging
• No cooling tricks except the specific cooldown rule requested below
• No extra indicators unless explicitly mentioned here

3) CUSTOM INDICATOR INPUTS

Please add the following inputs:

• IndicatorName
• BuyBufferIndex
• SellBufferIndex

The EA must use iCustom() to load the indicator.

The Buy signal is read from the user-defined Buy buffer.

The Sell signal is read from the user-defined Sell buffer.

The signal logic should be:

• If the Buy buffer on the closed candle [1] has a valid value and is not empty → Buy signal
• If the Sell buffer on the closed candle [1] has a valid value and is not empty → Sell signal

Important:

• Use the closed candle only (shift = 1)
• Do not use the current forming candle (shift = 0) for entry logic
• The EA must be designed for first appearance of the signal on the closed candle

If needed, treat no-signal as:

• EMPTY_VALUE
• zero
• or invalid/empty buffer value depending on the indicator structure