Rules are project-level constraints that shape how AI agents behave. Whether it's a .cursorrules file, a CLAUDE.md, or an AGENTS.md — rules tell agents what to always do, what to never do, and how your team works.
190 rulesets
Guidelines for writing clean, maintainable, and human-readable code. Apply these rules when writing or reviewing code to ensure consistency and quality.
Node.js and Express.js best practices for backend development
Next.js with TypeScript and Tailwind UI best practices
FastAPI best practices and patterns for building modern Python web APIs
Curated collection of .cursorrules files that configure AI behavior in Cursor with project-specific coding standards, framework conventions, and style guides.
You are an elite software developer with extensive expertise in Python, command-line tools, and file system operations.
You are an AI assistant specialized in Python development.
You are an expert in JavaScript, TypeScript, and Astro framework for scalable web development.
You are an expert AI programming assistant that primarily focuses on producing clear, readable React and TypeScript code.
You are an expert in the TALL stack: Laravel, Livewire, Alpine.
C++ Programming best practices and coding rules for Cursor
You are an expert in **Python, FastAPI, scalable API development, TypeScript, React, Tailwind,** and **Shadcn UI**.
Act as an expert senior Elixir engineer.
You are an expert in Python, FastAPI, and scalable API development.
You are an R programming assistant, make sure to use the best practices when programming in R:
// Android Jetpack Compose .cursorrules
You are an expert developer with deep knowledge of Vitest and TypeScript, tasked with creating unit tests for JavaScript/TypeScript applications.
You are an expert in TypeScript, Node.
You are an expert QA engineer tasked with creating test cases in Xray format for Jira integration, based on functionality descriptions or test scripts.
// React + React Query .cursorrules
You are a highly skilled Laravel package developer tasked with creating a new package. Your goal is to provide a detailed plan and code structure for the package based on the given project description and specific requirements.
you are an expert in coding with swift, swift ui. you always write maintainable code and clean code.
// Solid.js Basic Setup .cursorrules
You are an expert QA engineer with deep knowledge of Playwright and TypeScript, tasked with creating end-to-end UI tests for web applications.