This project provides a unified marketplace and standard format for AI agent plugins, addressing the fragmentation across different AI coding assistants. It targets developers building or integrating with AI agents, offering a "write once, run everywhere" solution for agent skills and simplifying the discovery and installation of reusable capabilities across platforms like Claude Code, GitHub Copilot, and Codex.

How It Works

The core innovation lies in universal formats: SKILL.md for skill definitions and AGENTS.md for discovery, enabling cross-platform compatibility. The n-skills repository acts as a curated marketplace, while the openskills package serves as a universal installer. External skills are automatically synced daily from their respective repositories via GitHub Actions, simplifying maintenance and avoiding complex submodule management.

Quick Start & Requirements

• Claude Code: /plugin marketplace add numman-ali/n-skills
• OpenSkills (Universal): npm i -g openskills, then openskills install numman-ali/n-skills or openskills sync. Requires Node.js and npm.
• Codex: Uses a specific $skill-installer command for individual skills, e.g., $skill-installer https://github.com/numman-ali/n-skills/tree/main/skills/tools/zai-cli.
• Links: agentskills.io, AGENTS.md discovery

Highlighted Details

• The AGENTS.md discovery format is adopted by over 20,000 repositories and natively supported by major AI platforms including GitHub Copilot, Google Gemini, and OpenAI Codex.
• Achieves universal compatibility across a wide range of agents such as Claude Code, GitHub Copilot, Codex, Factory/Droid, Cursor, Windsurf, Cline, OpenCode, and Amp Code.
• Features daily automatic synchronization of external skills from their source repositories, ensuring up-to-date capabilities.
• Operates as a curated marketplace, prioritizing high-quality, well-maintained skills that offer genuine utility.

Maintenance & Community

The project is curated by Numman Ali (@nummanali). Contributions and skill submissions are welcomed via GitHub issues and pull requests, following the guidelines in CONTRIBUTING.md.

Licensing & Compatibility

Licensed under the Apache 2.0 license, permitting commercial use and integration into closed-source projects.

Limitations & Caveats

The marketplace is curated, meaning submissions are reviewed for quality and genuine utility, and not all requests may be accepted. The focus is on skills that solve real problems and are actively maintained.