Cursor Project Rules enhance Cursor AI editor behavior with project-specific guidance and reusable coding standards.
Cursor AI is an AI-powered code editor. Cursor Project Rules are Markdown-based .mdc files that live in .cursor/rules/ and tell Cursor how to behave for specific projects, file types, frameworks, and workflows.
Cursor rules help developers define project-specific instructions for Cursor AI. This repository uses the modern .mdc Project Rules format.
Customized behavior means Cursor can respond to the specific needs of a project instead of relying only on general coding knowledge. Rules can describe local architecture, preferred libraries, common methods, domain constraints, and other context that makes generated code more relevant.
Consistency is the other big win. By defining coding standards and best practices in .mdc files, teams can guide Cursor toward code that matches the project's style, naming, structure, and review expectations.
Project rules also reduce repeated manual editing. Well-scoped rules give Cursor reusable project knowledge up front, so suggestions are more likely to fit the codebase on the first pass and less likely to need the same corrections again.
For teams, shared .cursor/rules/*.mdc files keep AI assistance aligned across contributors. Everyone can work from the same project-specific guidance, whether the rule covers framework usage, security requirements, testing conventions, or workflow details.
By adding selected .mdc files to .cursor/rules/, you can use these rules directly in your project.
Next.js 15 (Supabase, TypeScript, Security) - 27 architecture rules preventing AI hallucinations: insecure auth (getSession vs getUser), synchronous params, deprecated imports, missing RLS, and Stripe key exposure. Built for Cursor Agent and Claude Code.
Next.js (TanStack Query v5) - Next.js App Router with TanStack Query v5, covering the HydrationBoundary pattern, Server Actions as mutations, and optimistic updates.
React (FormEngine AI Form Builder) - Generating React forms from screenshots, PDFs, HTML, or text descriptions with validated FormEngine JSON schema. Renders through RSuite, Material UI, or Mantine.
Vue/Nuxt Full AI Stack - Complete AI coding setup for Vue 3 & Nuxt 3 with Cursor Project Rules, CLAUDE.md, Copilot instructions, and generation skills.
Backend and Full-Stack
Cloudflare Workers (Hono, Angular) - Full-stack SaaS applications on Cloudflare Workers with Hono APIs, Angular frontends, typed RPC, D1/Neon, and production observability.
Manifest - YAML-based configuration and metadata files.
Momen.app (Backend-as-a-Service) - Building custom frontends with Momen.app as headless BaaS with GraphQL API, actionflows, AI agents, and Stripe integration.
What is this?A curated awesome-list of Cursor Project Rules: ready-made Markdown configuration files (.mdc) that make the Cursor AI code editor follow your project's own standards, architecture and conventions instead of relying on generic coding knowledge.
So it's not an app or a plugin — what am I actually getting?A directory of ready-made .mdc rule files organized by stack, from frontend frameworks to security. The repo is not software you run — you browse the list and copy the files that match your project.
What is Cursor in the first place?Cursor is an AI-powered code editor that generates and edits code from natural language. These rules teach its AI what your specific project looks like so its suggestions actually fit.
What exactly is a .mdc file?A Markdown-based rules file that lives in .cursor/rules/ and tells Cursor how to behave for specific projects, file types, frameworks and workflows — the modern Project Rules format this repository uses.
Can my whole team share one set of rules?Yes. Commit the shared .cursor/rules/ .mdc files to your repository and every contributor's Cursor follows the same framework usage, security requirements and testing conventions.
Why not just let Cursor use its general knowledge?Without rules, Cursor responds from general coding knowledge alone. Rules align it with your project's style, naming, structure and review expectations, which reduces repeated manual editing.
A curated awesome-list of Cursor Project Rules: ready-made Markdown configuration files (.mdc) that make the Cursor AI code editor follow your project's own standards, architecture and conventions instead of relying on generic coding knowledge.