Code Review

Review the MQL5 EA before launching Strategy Tester.

Backtesting a weak draft gives weak evidence. A pre-backtest review makes sure the EA has lifecycle functions, execution paths, risk gates, and useful diagnostics.

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The developer wants a pre-backtest code review checklist for MQL5 EAs.

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Review lifecycle structure

Confirm OnInit, OnDeinit when needed, and OnTick are present and separated into readable helper functions.

Input validation

Indicator handle setup

Clean tick workflow

Review execution path

A generated draft must contain a real order path when the goal is a tradable EA prototype.

CTrade or trade request

Valid volume

Valid SL and TP

Result logging

Review risk gates

Risk gates should be obvious. If they are not visible, they are hard to trust.

Spread guard

Max open trades

Daily loss guard

Cooldown

Use the tool

Run Workfusion MQL5 Code Review and fix structural gaps before the next backtest.

Fix the first error first

Keep full EA context attached

Recompile before changing strategy logic

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Related guides

Continue the EA build path.

Compiler Fixes

MQL5 OnInit and OnTick EA skeleton

A clean MT5 Expert Advisor skeleton structure for OnInit, OnTick, risk gates, signal checks, and execution.

Code Review

Expert Advisor state machine design

Design EA state around waiting, signal, risk-approved, order-sent, position-open, and cooldown phases.

EA Generation

Prepare an EA for Strategy Tester

A practical checklist before running an MT5 Strategy Tester backtest on a new Expert Advisor draft.

Code Review

Avoid overfitting MT5 EA backtests

A practical checklist for detecting overfit EA results, weak trade samples, live/tester mismatch, and missing walk-forward evidence.

Code Review

Expert Advisor audit trail checklist

What to log in an Expert Advisor so trade decisions, blocked entries, and risk controls are reviewable later.