Overview
using-agent-skills is an open-source workflow skill for Claude Code and compatible agents, published by addyosmani. Its author describes it as: “Discovers and invokes agent skills. Use when starting a session, or when you need to decide which skill or workflow applies to the piece of work at hand. This is the meta-skill that governs how all other skills are di…”. The project has 98k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add addyosmani/agent-skills`.
What using-agent-skills does
Agent Skills is a collection of engineering workflow skills organized by development phase. Each skill encodes a specific process that senior engineers follow. This meta-skill helps you discover and apply the right skill for your current task.
What’s inside
The SKILL.md for using-agent-skills is organised into these sections:
- Overview
- Skill Discovery
- Core Operating Behaviors
- 1. Surface Assumptions
- 2. Manage Confusion Actively
- 3. Push Back When Warranted
- 4. Enforce Simplicity
- 5. Maintain Scope Discipline
- 6. Verify, Don't Assume
- Failure Modes to Avoid
- Skill Rules
- Lifecycle Sequence
Installation
Add using-agent-skills to your agent with:
/plugin marketplace add addyosmani/agent-skillsReview a skill’s source before installing it — skills can instruct your agent to run commands. This command comes from the skill’s public repository, which is the source of truth for setup steps. New to skills? Read how to install Claude Code skills.
Supported agents
- Claude Code — ships a claude code plugin marketplace
- Codex — declared in the repository topics
- Cursor — declared in the repository topics
- Antigravity — declared in the repository topics
License
using-agent-skills is published under the MIT license.
Strengths
- Clear MIT license — safe to read and adapt within its terms
- Ships in addyosmani/agent-skills, an established project with 97,992 GitHub stars
- Works with Claude Code, Codex, Cursor, Antigravity
- Actively maintained — repository updated in the last 30 days
- Its repository gained 16,916 GitHub stars over the last 52 days
Author
Topics
Frequently asked questions
- What does using-agent-skills do?
- Discovers and invokes agent skills. Use when starting a session, or when you need to decide which skill or workflow applies to the piece of work at hand. This is the meta-skill that governs how all other skills are discovered and invoked.
- How do I install using-agent-skills?
- Run /plugin marketplace add addyosmani/agent-skills in your agent, then reload your skills. Review the source at https://github.com/addyosmani/agent-skills before installing.
- Is using-agent-skills free to use?
- Yes. using-agent-skills is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.
- Which agents does using-agent-skills work with?
- using-agent-skills lists Claude Code, Codex, Cursor, and Antigravity — named in its SKILL.md, its plugin marketplace or its repository topics. Skills use the portable SKILL.md format, so other agents that read that format may load it too.
- Where does using-agent-skills come from?
- using-agent-skills ships inside addyosmani/agent-skills, a repository that contains 26 catalogued skills in total. The repository's 97,992 GitHub stars apply to that whole collection, not to this skill on its own.
