One Skill To Rule Them All
A skill that writes, watches and improves the other skills you use.
Use it for
Iterating on a skill you already trust
Skip it if
Letting it rewrite safety constraints unattended
What it is
Watches a work session and proposes changes to the skills in play. The idea is right and the risk is obvious: an agent editing its own instructions can remove the constraints that keep it honest. Read every proposal before accepting.
Install
Clone the repository, then copy the skill folder into your agent's skills directory — ~/.claude/skills/ for Claude Code. Skills are plain files: no build step, no daemon.
git clone https://github.com/rebelytics/one-skill-to-rule-them-all.gitHow to judge it
Read the SKILL.md before you install. A good skill states when it applies, what it must not do, and how to verify the result. A skill that only lists adjectives will change the agent's tone without improving its output — skip those.
Other Productivity skills
- Agent Skills — The reference collection: document, spreadsheet, and slide skills from the team that defined the format.
- Claude Skills Collection — Hundreds of skills across engineering, marketing, product, and operations.
- Book to Skill — Turns a technical book PDF into a skill you can query later.