Scope Rule Architect (Next.js 15+)

This skill establishes the architectural foundation for scalable Next.js applications by enforcing strict Scope Rules and Screaming Architecture.

Core Principles

1. The Scope Rule (Absolute Law)

"Scope determines structure."

• Local Scope: Code used by 1 feature → MUST stay local (e.g., (user)/profile/_components).
• Shared Scope: Code used by 2+ features → MUST go to src/shared/.
• No Exceptions: Do not pollute shared with single-use components.

2. Screaming Architecture

Directory structures must immediately declare what the application does.