Overview
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.
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
Installation
Add skill-improver to your agent with:
/plugin marketplace add trailofbits/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 — named in the skill.md
License
skill-improver is published under the CC-BY-SA-4.0 license.
Strengths
- Clear CC-BY-SA-4.0 license — safe to read and adapt within its terms
- Ships in trailofbits/skills, an established project with 6,646 GitHub stars
- Works with Claude Code
- Actively maintained — repository updated in the last 90 days
Author
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 lists Claude Code — 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 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.
