MQL5 Docs Research (JA/EN)

Provide doc-based guidance when users hit errors while creating or modifying MQL5 code. Use only the official docs in Japanese and English.

Scope and Sources

• Allowed sources:
  • https://www.mql5.com/ja/docs
  • https://www.mql5.com/en/docs
• Do not use forums, blogs, or third-party sites.

Inputs to Collect

Ask for any missing context before research: