🤖 AI AgentsOpen SourceFree

Hallmark

Anti-AI-slop design skill

4.7/ 5⭐ 10,708 GitHub starsCSSMIT

📋 Overview

Hallmark is an open-source design skill for Claude Code Cursor and Codex that prevents common AI design mistakes. It provides design principles and guidelines for polished output. It provides a comprehensive solution for modern AI workflows. The tool is designed for both beginners and advanced users.

✨ Key Features

•Prevents AI design slop
•Works with Claude Code Cursor Codex
•Provides design principles and guidelines
•Easy install as a skill
•10K+ stars
•Active community and development

🎯 The Problem It Solves

AI coding tools produce generic poorly-designed output with bad spacing colors and hierarchy.

🔧 How It Works

Install as a skill. It intercepts design prompts and applies professional design principles.

🚀 Installation & Quick Start

Installation

git clone

✅ Pros

•Noticeable design improvement
•Easy install
•Free MIT
•Active community
•Comprehensive documentation
•Production-ready

❌ Cons

•Design-focused only
•Learning curve for new users
•Documentation could be improved

💬 Practitioner Verdict

“Best for improving AI design. 10K+ stars.”

Self-Hosted (Free)

Open source, MIT/Apache licensed. Run it yourself.

⭐ Star & Clone on GitHub

Free forever. Your infrastructure, your data.

Deployment Options

Ways to run Hallmark in production

npm installeasy

npm · Free

📊 Specifications

Language: CSS
License: MIT
Platform: Linux, macOS, Windows
Supported Models: REST API, CLI

💰 Pricing Reality

100% free MIT.

👥 Community Health

Stars10,708

Forks1,338

Contributors214

Health Score7.1/10

🏷️ Tags

Open SourceFree