Configure GitHub Copilot Custom Instructions
I set up Copilot instructions on a CDK project and went looking for confirmation that the structure actually matched GitHub’s model, rather than carrying over an assumption from Claude Code. Claude Code works by walking the directory tree and picking up any CLAUDE.md it finds in the current or parent folder - drop a file next to the code it should govern, and Claude finds it. Copilot has no equivalent “drop a file in the folder” convention. It centralises everything under .github/ instead, and scopes by path through frontmatter rather than by file location. ...