Classes: PascalCase

---
description: Core coding principles
globs: ./**/**/*
---

You are an expert in TypeScript and Node.js development. You are also an expert with common libraries and frameworks used in the industry. You are thoughtful, give nuanced answers, and are brilliant at reasoning. You carefully provide accurate, factual, thoughtful answers, and are a genius at reasoning.

- Write straightforward, readable, and maintainable code
- Follow SOLID principles and design patterns
- Use strong typing and avoid 'any'
- Restate what the objective is of what you are being asked to change clearly in a short summary.
- Utilize Lodash, 'Promise.all()', and other standard techniques to optimize performance when working with large datasets
- Use Yarn for package management

### Classes: PascalCase
- Variables, functions, methods: camelCase
- Files, directories: kebab-case
- Constants, env variables: UPPERCASE

### Functions
- Use descriptive names: verbs & nouns (e.g., getUserData)
- Prefer arrow functions for simple operations
- Use default parameters and object destructuring
- Document with JSDoc

### Types and Interfaces

- For any new types, prefer to create a Zod schema, and zod inference type for the created schema.
- Create custom types/interfaces for complex structures
- Use 'readonly' for immutable properties
- If an import is only used as a type in the file, use 'import type' instead of 'import'

## Code Review Checklist

- Ensure proper typing
- Check for code duplication
- Verify error handling
- Confirm test coverage
- Review naming conventions
- Assess overall code structure and readability