agr — A Package Manager for AI Agent Skills
Author: Kasper Junge
Description: Install, share, and manage AI agent skills across Claude Code, Cursor, Codex, OpenCode, Copilot, and Antigravity with a single command. Open source package manager for AI coding agents.
Keywords: agr, agent skills, Claude Code, Cursor, Codex, OpenCode, Copilot, AI agents, developer tools, CLI, Python, package manager

Open Source Package Manager for AI Agents

# A Package Manager for Agent Skills

Install, share, and sync AI agent skills across tools with a single command. Works with Claude Code, Cursor, Codex, OpenCode, Copilot, and Antigravity.

# Install agr (or: pipx install agr)
$ uv tool install agr
# Add a skill from GitHub
$ agr add anthropics/skills/frontend-design

Works with your tools

- Claude Code
- Cursor
- OpenAI Codex
- OpenCode
- GitHub Copilot
- Antigravity

## Why agr?

Stop copying skill files manually. Install from GitHub, sync across your team, and run skills instantly.

⚡

### One Command Install

`agr add user/skill` fetches from GitHub and installs into your tool's skills folder. Done.

🌐

### GitHub Is Your Registry

Your GitHub repo is your package registry. Push a skill, anyone can install it. No publishing step needed.

🔄

### Team Sync

Track dependencies in `agr.toml`. Teammates run `agr sync` and get everything. Like a lockfile for skills.

🎯

### Multi-Tool Support

Install skills into Claude Code, Cursor, Codex, OpenCode, Copilot, and Antigravity simultaneously. One config, all tools.

🚀

### Run Without Installing

`agrx user/skill` downloads, runs, and cleans up. Try any skill instantly without committing to it.

📦

### Python SDK

Use `agr` as a library. Load skills programmatically, inspect metadata, manage the cache. Build on top of it.

## Get Started in Minutes

From zero to sharing your own skills in three steps.

1

### Install a skill

Install agr and add your first skill from GitHub:

`uv tool install agr && agr add anthropics/skills/frontend-design`
2

### Create your own

Scaffold a new skill with one command, then write your instructions:

`agr init my-skill`
3

### Share with the community

Push to GitHub. Others install with a single command:

`agr add your-username/my-skill`

## Ready to manage your agent skills?

Install agr and start sharing skills across your tools and team.

Read the Docs Browse Skills
View on GitHub