path-specific-instructions

To apply custom GitHub Copilot instructions to specific file types, use path-specific rules that trigger only when Copilot operates on files matching specified glob patterns, such as `*.ts` or `src/components/**`. This ensures contextually relevant code generation for targeted directories.

Yes, you can define different Copilot rules for test files and application code by creating dedicated instruction files like `testing.instructions.md` that apply only to `*.test.ts` files, enforcing testing standards without affecting your application code.

Glob patterns are path-matching syntax like `*.ts` or `src/**` used to scope Copilot instructions. They ensure rules are activated only when Copilot operates on files matching those specific patterns within a repository.

You can organize Copilot instructions by moving specialized rules from the global `copilot-instructions.md` into dedicated instruction files, keeping your global configuration clean while maintaining project-specific standards for different codebase areas.

Path-specific Copilot instructions work only on files matching the glob patterns you define, such as `*.ts` or `src/components/**`. They do not interfere with unrelated code outside those specified paths within your repository.

The best way to enforce project-specific code standards is by creating path-specific instruction files that apply tailored rules to different directories, ensuring Copilot suggestions adhere to the distinct standards of tests, components, or models.