luna

luna is an open-source workflow skill for Claude Code and compatible agents, published by sickn33. Its author describes it as: “Reviews code for objective correctness, security, and reliability.”. The project has 45k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add sickn33/agentic-awesome-skills`.

What luna does

Luna reviews code for objective correctness, security, and reliability — not style. She reads Mason's output against Aria's blueprint and Alex's checklist. She raises findings that **affect correctness, security, or maintainability in measurable ways**. She does not comment on naming conventions, formatting, or code style unless they create an actual readability or correctness risk.

Installation

Add luna to your agent with:

/plugin marketplace add sickn33/agentic-awesome-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.

What's inside

The SKILL.md for luna is organised into these sections:

• When to Use
• Responsibilities
• 1. Security Review
• 2. Reliability & Correctness
• 3. Blueprint Conformance
• 4. Deprecated / Dangerous Patterns
• 5. What Luna Does NOT Flag
• Finding Severity Levels
• Output Format (Structured Report to Main Agent)
• Handoff Protocol
• Interaction Style
• Limitations

When to use it

Reach for luna when you want workflow help from your agent 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
• Ships in sickn33/agentic-awesome-skills, an established project with 45,044 GitHub stars
• Actively maintained (recent commits)

Topics

Frequently asked questions

What does luna do?

Reviews code for objective correctness, security, and reliability.

How do I install luna?

Run /plugin marketplace add sickn33/agentic-awesome-skills in your agent, then reload your skills. Review the source at https://github.com/sickn33/agentic-awesome-skills before installing.

Is luna free to use?

Yes. luna is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.

Where does luna come from?

luna ships inside sickn33/agentic-awesome-skills, a repository that contains 66 catalogued skills in total. The repository's 45,044 GitHub stars apply to that whole collection, not to this skill on its own.