AI Rules - Next.js, Tailwind, Supabase

AI Rules for Next.js, Tailwind, and Supabase is a set of guidelines designed to help AI coding assistants create better code. It focuses on making sure AI tools like Cursor and Claude Code follow best practices when building applications with Next.js, Tailwind CSS, and Supabase. The main goal is to avoid common errors that AI sometimes makes, leading to more reliable and efficient code.

Benefits

These rules help prevent mistakes like using "use client" when it's not needed, handling user sessions incorrectly, or writing inefficient Supabase database queries. By following these guidelines, AI assistants can generate code that is cleaner, more organized, and easier to maintain. The free version offers the 20 most important rules, covering things like using Server Components by default, correctly handling parameters in Next.js, setting up Supabase properly for different environments, and using the right methods for user authentication.

Use Cases

Developers can use AI Rules to improve the code generated by AI assistants. For Cursor, you can add a.cursorrulesfile to your project. For Claude Code, you can clone the repository into your skills directory. Once set up, the AI will automatically follow these rules as you code. This is useful for anyone building modern web applications using the Next.js, Tailwind, and Supabase stack, especially when aiming for production-ready quality.

Pricing

A free version is available with the 20 most impactful rules. A "Full Pack" is also offered, which includes over 400 rules, prompts, and reference files for more advanced features like Server Actions, React 19 forms, and authentication patterns. The full pack is sold under a single-user commercial license.

Vibes

This project aims to improve the quality of AI generated code, making it more aligned with production standards. Users can contribute to the free version, and issues can be reported with specific details for improvement.

Additional Information

The rules are compatible with recent versions of Next.js, Tailwind CSS, Supabase, TypeScript, and React. Other AI coding tools like OpenAI Codex CLI, Windsurf, Continue.dev, and GitHub Copilot can also support these rules. A free tool called "0toprod" is available to help convert rules between different formats. The free version is open-source under the MIT license.