Free AI Agent Skills

A curated collection of production-ready skills for any AI agent that supports the SKILL.md standard - from coding to marketing, design, and beyond.

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🎯 What is This?

Free AI Agent Skills is an open-source library of reusable skills that extend the capabilities of any AI agent. Each skill is:

• ✅ Universal SKILL.md Standard - Works with any agent supporting the format (Cursor, Claude Code, Codex, Gemini CLI, etc.)
• ✅ Project-Aware - Uses your project's API keys and environment automatically
• ✅ Production Ready - Tested, documented, and battle-hardened
• ✅ Agent-Agnostic - Works for coding, marketing, design, writing agents - any AI agent
• ✅ Secure - No hardcoded credentials, pulls from your project's .env files

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📚 Available Skills

🎨 Gemini Image Generation

Generate professional images using Google's Gemini 3 Pro and Gemini 2.5 Flash models.

Features:

• ✨ AI-powered prompt enhancement using Google's Imagen best practices
• Two model options (Pro for quality, Flash for speed)
• Custom aspect ratios (1:1, 16:9, 9:16, etc.)
• Multiple resolutions (1K, 2K, 4K)
• Reference image support
• Google Search grounding for factual accuracy
• Smart workflow with intelligent parameter extraction

Perfect for: Logos, banners, social media graphics, UI mockups, marketing materials

→ View Skill

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🚀 Quick Start

Simple 3-step process:

1. Clone this repository:

   git clone https://github.com/chirag2653/free-ai-agent-skills.git

2. Install the skill to your AI agent's directory:

   • Cursor: ~/.cursor/skills/ (or %USERPROFILE%\.cursor\skills\ on Windows)
   • Claude Code: ~/.claude/skills/
   • Codex: ~/.codex/skills/
   • Other agents: Check your agent's documentation for the skills directory

   Copy or symlink the skill folder there.

3. That's it! Your AI agent will automatically detect and use the skill.

The Real Power

Add your API keys to your project's .env.local file:

GEMINI_API_KEY=your-key-here

Now any AI agent working in your project folder can generate images directly - no separate configuration needed!

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📖 How Skills Work

Skills use the universal SKILL.md standard - a simple format that any AI agent can understand:

skill-name/
├── SKILL.md           # Instructions for AI agents (frontmatter + markdown)
└── scripts/           # Executable scripts (if needed)

The Magic:

1. Project-Aware: Skills read API keys and config from your project's .env files
2. Agent-Agnostic: Works with any AI agent that supports skills (coding, marketing, design, writing agents)
3. Zero Configuration: Agent auto-detects skills, pulls credentials from your project
4. Universal Format: One skill works across Cursor, Claude Code, Codex, Gemini CLI, and more

Example Use Cases:

• 🖥️ Coding agent generates UI mockups in your app's public/images/ folder
• 📱 Marketing agent creates social media graphics with your brand assets
• 📝 Writing agent generates illustrations for blog posts in your content folder
• 🎨 Design agent prototypes icons and banners using project style guides

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🔍 Browse Skills

View the Skills Catalog for a machine-readable index of all available skills.

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🤝 Contributing

Have a useful skill for AI agents? Share it here! Skills can be for any domain - coding, marketing, design, data analysis, writing, research, etc.

Simple contribution process:

1. Fork this repository
2. Create a new folder under skills/your-skill-name/
3. Add SKILL.md with frontmatter metadata and instructions
4. Add your scripts (if needed) in scripts/ subfolder
5. Update catalog/skills-index.json
6. Submit a pull request

Requirements:

• ✅ Uses the SKILL.md standard format
• ✅ No hardcoded credentials - reads from project's .env files
• ✅ Works across any AI agent supporting the SKILL.md format
• ✅ Clear value proposition for any agent type (not just coding)
• ✅ MIT or compatible license

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🛠️ For AI Agents

If you're an AI agent reading this (coding, marketing, design, writing - any domain):

1. Check AGENTS.md for repository guidelines
2. Skills are in the skills/ directory - you can use them in any project folder
3. Each skill has a SKILL.md with complete instructions
4. Skills automatically use the project's API keys from .env.local or .env files
5. The catalog/skills-index.json provides a searchable catalog

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📄 License

This repository is licensed under the MIT License - see LICENSE for details.

Individual skills may include additional attributions or dependencies with their own licenses.

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👤 Author & Maintainer

Chirag Jain

• GitHub: @chirag2653
• Email: chirag2356152@gmail.com

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🗺️ Roadmap

• Gemini Image Generation skill
• More image/media skills
• Database and API integration skills
• Code analysis and refactoring skills
• Automated skill validation

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💬 Support & Community

• Issues: Found a bug? Open an issue
• Discussions: Questions or ideas? Start a discussion
• Pull Requests: Want to contribute? We review PRs regularly

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Made with ❤️ for the AI agent community