Skills

Skills is an open-source integrations skill for Claude Code and Codex, published by onsails. Its author describes it as: “Claude Code skills: codex-sprint, review-loop (iterative simplify-review-fix), rust-dev (FAIL FAST standards)”. The project has 42 stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add onsails/skills`.

Installation

Add Skills to your agent with:

/plugin marketplace add onsails/skills

Always review a skill's source before installing it. This command comes from the skill's public repository; the linked repo is the source of truth for exact setup steps.

When to use it

Reach for Skills when you want integrations help from Claude Code without writing the same instructions every session. Load the skill and the agent picks it up automatically for relevant tasks.

Strengths

• Clear MIT license — safe to read and adapt
• Declares compatibility with Claude Code, Codex
• Actively maintained (recent commits)

Topics

Frequently asked questions

What does Skills do?

Claude Code skills: codex-sprint, review-loop (iterative simplify-review-fix), rust-dev (FAIL FAST standards)

How do I install Skills?

Run /plugin marketplace add onsails/skills in your agent, then reload your skills. Review the source at https://github.com/onsails/skills before installing.

Is Skills free to use?

Yes. 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 Skills work with?

Skills declares compatibility with Claude Code and Codex. Agent Skills use a portable SKILL.md format, so other compatible clients can usually load it too.