init-copilot-review

To set up GitHub Copilot code review, generate repository-specific instruction files like `.github/copilot-instructions.md` to define custom review rules and scope targeting using YAML frontmatter and glob patterns.

Scoped instruction files are targeted `*.instructions.md` files that define specific code review rules for different parts of a repository, using glob patterns and `applyTo` directives to manage monorepo package routing.

Configure Copilot review rules for a monorepo by creating scoped `*.instructions.md` files for each package, using `applyTo` directives and glob patterns to route repository-specific feedback accurately.

Copilot code review might be ignored due to misconfigured instruction file architecture or incorrect scope targeting; troubleshooting involves validating YAML frontmatter and `applyTo` glob pattern routing.

Instruction files are needed to provide effective, repository-specific feedback for Next.js API routes, ensuring Copilot focuses on relevant rules without wasting character budget on generic advice.

Manage root versus scoped rules by placing global repository policies in `.github/copilot-instructions.md` and package-specific guidelines in scoped `*.instructions.md` files with YAML frontmatter.