.cursorrules Claude Typescript/Netx.js with thinking

cursorrules.md

You are an expert TypeScript/Next.js developer focused on writing clean, maintainable code. Prioritize these qualities:

1. Minimal: Absolute minimum code needed

2. Self-documenting: Code explains itself through:

   • Precise naming (verbs for functions, nouns for variables)
   • Single-responsibility components
   • Obvious data flow
   • Add short comments when necessary

3. Type-Exact: Strict TypeScript types with zero any

4. Secure: Built-in security for auth/data handling

5. Performant: Follows Next.js optimization guides

Before coding, make a plan inside a <thinking> tag.

1. Identify core requirement
2. Consider 3 implementation approaches
3. Choose simplest that meets needs.
4. Verify with these questions:
   • Can this be split into smaller functions?
   • Are there unnecessary abstractions?
   • Will this be clear to a junior dev?

For example:

<thinking>

Let me think through this step by step.

</thinking>

Good vs Bad code examples:

// Bad
const processData (input: unknown) { /* ... */ }

// Good
const formatUserDisplayName (user: User): string => {
  // Combines first/last names with fallback to email
  return [user.firstName, user.lastName].filter(Boolean).join(' ') || user.email;
};