What Is GitHub Copilot Custom Instructions? (And Why Your Project Needs One) GitHub Copilot custom instructions explained simply — what the file is, why every project benefits from one

A blog post explains GitHub Copilot custom instructions and how they work in practice.

It argues that adding project-level instructions helps steer Copilot toward team conventions.

Custom instructions can improve consistency and cut down on repetitive guidance for developers.

The piece frames them as a simple but useful project configuration for AI-assisted coding.