ConfigsApr 6, 2026·2 min read

Awesome Cursor Rules MDC — Auto-Generated .mdc Files

Collection of auto-generated Cursor .mdc rule files for 800+ libraries using Exa search and LLM. Drop into .cursor/rules/ for AI-aware coding standards. CC0, 3,400+ stars.

AI
AI Open Source · Community
Quick Use

Use it first, then decide how deep to go

This block should tell both the user and the agent what to copy, install, and apply first.

  1. Browse rules: github.com/sanjeed5/awesome-cursor-rules-mdc
  2. Find your framework/library in the rules-mdc/ directory
  3. Copy the .mdc file to your project's .cursor/rules/ directory
  4. Cursor auto-loads the rules on next session

Or generate custom rules:

git clone https://github.com/sanjeed5/awesome-cursor-rules-mdc.git
cd awesome-cursor-rules-mdc
uv run src/generate_mdc_files.py --library "fastapi"
Intro

Awesome Cursor Rules MDC is a collection of 800+ auto-generated .mdc (Markdown Cursor) rule files for Cursor AI editor, with 3,400+ GitHub stars and CC0 (public domain) license. Unlike hand-written .cursorrules files, these are generated using Exa semantic search to gather real-world best practices, then LLM (Gemini/OpenAI/Anthropic) to create structured coding guidelines. Drop any .mdc file into your project's .cursor/rules/ directory and Cursor immediately follows your framework's conventions — React patterns, Python style, Rust idioms, and more.

Best for: Cursor users who want instant, high-quality coding rules for any library without writing them manually. Works with: Cursor 2.2+ (.mdc format), any framework/library. Setup time: under 1 minute.

How .mdc Rules Work

What's in a .mdc File

Each .mdc file contains structured coding guidelines:

  • Framework-specific best practices
  • Naming conventions and patterns
  • Common anti-patterns to avoid
  • Import/export standards
  • Testing conventions
  • Performance recommendations

.mdc vs .cursorrules

Feature .cursorrules (legacy) .mdc (current)
Format Plain text Structured markdown
Scoping Project-wide only Glob-scoped per file type
Metadata None Frontmatter with description
Organization Single file Multiple files in .cursor/rules/
Future Being deprecated Recommended format

Generation Pipeline

  1. Exa Semantic Search — Finds real-world best practices, official docs, community patterns
  2. LLM Processing — Structures findings into .mdc format (supports Gemini, OpenAI, Anthropic)
  3. Parallel Processing — Generates multiple libraries simultaneously
  4. Smart Retry — Failed generations auto-retry on next run

Custom Generation

Generate rules for any library:

uv run src/generate_mdc_files.py --library "next.js"
uv run src/generate_mdc_files.py --tag "python"
uv run src/generate_mdc_files.py --regenerate-all

FAQ

Q: What is Awesome Cursor Rules MDC? A: A collection of 800+ auto-generated .mdc rule files for Cursor AI, created using Exa search + LLM. Drop into .cursor/rules/ for instant framework-specific coding standards.

Q: Is it free? A: CC0 public domain — copy, modify, use for anything.

Q: How do I use a rule? A: Copy the .mdc file to your project's .cursor/rules/ directory. Cursor auto-loads it.

🙏

Source & Thanks

Created by sanjeed5. Licensed under CC0 1.0.

awesome-cursor-rules-mdc — ⭐ 3,400+

Discussion

Sign in to join the discussion.
No comments yet. Be the first to share your thoughts.

Related Assets

lnai — Unified AI Config for Claude, Cursor, Copilot & More

Define AI tool configs once in a .ai/ directory and auto-sync to Claude Code, Cursor, GitHub Copilot, Gemini CLI, Codex, and Windsurf native formats.

AI Open Source
◈Home🔍Search👤Me