skill-improver

skill-improver is an open-source productivity skill for Claude Code, published by trailofbits. Its author describes it as: “Iteratively reviews and fixes Claude Code skill quality issues until they meet standards. Runs automated fix-review cycles using the skill-reviewer agent. Use to fix skill quality issues, improve skill descriptions, r…”. The project has 6.6k stars on GitHub and is available under the CC-BY-SA-4.0 license. Add it to your setup with `/plugin marketplace add trailofbits/skills`.

What skill-improver does

Iteratively improve a Claude Code skill using the skill-reviewer agent until it meets quality standards.

Installation

Add skill-improver to your agent with:

/plugin marketplace add trailofbits/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 skill-improver is organised into these sections:

• Prerequisites
• Starting the Loop
• Step 1: Resolve the skill path
• Step 2: Initialize the session
• Core Loop
• When to Use
• When NOT to Use
• Issue Categorization
• Critical Issues (MUST fix immediately)
• Major Issues (MUST fix)
• Minor Issues (Evaluate before fixing)
• Minor Issue Evaluation

When to use it

Reach for skill-improver when you want productivity 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 CC-BY-SA-4.0 license — safe to read and adapt
• Ships in trailofbits/skills, an established project with 6,646 GitHub stars
• Declares compatibility with Claude Code
• Actively maintained (recent commits)

Topics

Frequently asked questions

What does skill-improver do?

Iteratively reviews and fixes Claude Code skill quality issues until they meet standards. Runs automated fix-review cycles using the skill-reviewer agent. Use to fix skill quality issues, improve skill descriptions, run automated skill review loops, or iteratively refine a skill. Triggers on 'fix my skill', 'improve skill quality', 'skill improvement loop'. NOT for one-time reviews—use /skill-reviewer directly.

How do I install skill-improver?

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

Is skill-improver free to use?

Yes. skill-improver is free and open source under the CC-BY-SA-4.0 license, so you can read, run, and adapt it within that license's terms.

Which agents does skill-improver work with?

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

Where does skill-improver come from?

skill-improver ships inside trailofbits/skills, a repository that contains 41 catalogued skills in total. The repository's 6,646 GitHub stars apply to that whole collection, not to this skill on its own.