GitHub Copilot Instructions With applyTo Frontmatter

In addition to project-wide .github/copilot-instructions.md, GitHub Copilot supports scoped instruction files in .github/instructions/*.instructions.md using YAML frontmatter applyTo globs to separate frontend vs. backend or TypeScript vs. Python guidance.

File: .github/instructions/react-components.instructions.md

---
applyTo: "**/*.tsx"
---
Use functional components with TypeScript interfaces. Always use server components unless client interactivity is required.