Trading Systems Lab

Practical notes on EA building, MT5 testing, risk control, and market timing. Less hype, more systems.

Tip: Use short keywords like “London”, “ATR”, “spread”, “JPY”.

Clean MQL5 Code: Writing EAs You Can Maintain for Years

Learn how professional EA developers write clean, maintainable MQL5 code that survives years of refactoring, optimization, and live trading. Practical patterns, real EA examples, and refactoring mindset for serious algo traders.

MQL5 Programming Clean Code Maintainable EA EA Refactoring MT5 EA Development
2026/01/19

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MT5 EA Development (1) Clean Code (1) EA Refactoring (1) MQL5 Programming (1) Maintainable EA (1)
How to use this blog
  • Pick a session (Tokyo/London/NY) and test one idea.
  • Use fixed risk per trade, then optimize only after stability.
  • Bookmark your best setups and keep a track record.