CLAUDE.md Rules for Claude Code That You Can Check

CLAUDE.md allows users to define project rules for Claude Code, specifying permitted actions, restrictions, and verification commands like npm test. Effective contracts remain short, focusing on limited changes and avoiding .env files. Additionally, developers can create a Claude Code Skill using a SKILL.md file to customize frontend development. This approach prevents generic AI-generated designs by providing clear instructions, ensuring that the resulting UI reflects a unique brand identity rather than standard AI patterns.