MT5 VALIDATION LABS
Build, test, debug, verify
Practical MetaTrader 5 and MQL5 walkthroughs built around inspectable code, recorded test conditions, real execution errors, and skeptical report reading.
Using AI to Evaluate an MT5 Strategy: Bollinger Bands, RSI, and Backtest Iteration
Turn a Bollinger Bands and RSI idea into an AI-ready MT5 specification, analyze backtest evidence, and use result-specific prompts to compare strategy versions.
System TradingBuild a Testable MT5 EA with AI: MQL5 Specs and Prompts for Codex or Claude
Turn an MT5 strategy idea into a testable MQL5 specification for Codex or Claude Code, with risk limits, recovery rules, evidence, and validation gates.
System TradingHow to Recover MT5 EA State After Restart or Reconnect
Design a restart-safe MT5 EA that reconciles positions, pending orders, and trade history before it can send another signal after reconnect.
System TradingHow to Forward-Test an MT5 EA on a Demo Account
A reproducible checklist for forward-testing an MT5 Expert Advisor on demo: uptime, duplicate orders, protective stops, execution drift, and stop criteria.
System TradingBuild and Run Your First MQL5 Expert Advisor on an MT5 Demo Account
Download, compile, attach, and inspect a small MQL5 Expert Advisor in MetaTrader 5 while learning permissions, inputs, logs, and demo-only safety limits.
System TradingHow to Read an MT5 Strategy Tester Report
Audit an MT5 backtest report from Journal to drawdown, Profit Factor, trade history, and equity curve—without relying on a single headline metric.
System TradingHow to Backtest an EA in MT5: A Reproducible Workflow
Run a reproducible MT5 Strategy Tester backtest, choose a modelling mode, inspect the Journal, and separate development data from validation data.
System TradingHow to Fix “Invalid Stops” in MT5 and MQL5
Diagnose MT5 invalid-stops errors using stop level, freeze level, tick size, Bid/Ask, rounding, and CTrade return codes—with a reusable MQL5 example.
System TradingMetaTrader 5 and MQL5: A Practical Beginner's Guide to Systematic Trading
Learn what MetaTrader 5, MQL5, Expert Advisors, and Strategy Tester do, then follow a risk-aware workflow from a trading rule to a reproducible demo test.