Use This SkillA fixed brief
Written once from your SKILL.md, so it tests what the skill claims to do. Shown on the page so anyone can repeat the run.
Prove your skill works.
Stars say people found your skill. A proof shows what it changes. We run your skill through Claude on a fixed brief, once without it and once with it, and publish both pages side by side with a badge for your README.
What you get
One page that settles it.
The same proof format as the 10 skills already proven on the site, with your name on it.
Two live pages
Claude builds the brief without your skill and with it, on the same model and settings. Both results are published as working pages.
A listing and a badge
Your skill joins the directory of 1,402 with a Proven mark, and you get a badge that links readers to the proof.
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Done for you
Need the skill written too?
For teams that want a skill for their own workflow and no time to write it.
Prove my skill
$49 per skill
You have the skill. We prove it.
- Fixed brief written from your SKILL.md
- With-and-without pages, published
- Directory listing and README badge
- Automatic, usually within two hours
Custom skill, written and proven
$499 one time
Tell us the job. We write the skill, test it on your brief, and publish the proof.
Delivered within five business days. The skill is yours (MIT), and the proof is published unless you ask us not to.
Questions
Good to know.
What do I get for $49?
A public proof page for your skill on usethisskill.com: the brief, the page Claude built without your skill, the page it built with it, the model used and the exact commit of your skill, plus a listing in the directory and a badge for your README.
How long does it take?
Orders are picked up automatically within the hour and most proofs are published within two hours. Your status page updates as it runs, and if you leave an email at checkout you get the link when it is live.
What if the result makes my skill look bad?
The brief is written from your skill's own description and both runs use the same model and settings, so the comparison is fair. We don't edit outputs in either direction. If a run fails for a technical reason we rerun it, and if it can't be proven we refund you.
Who chooses the brief?
The brief is generated once from your SKILL.md so it reflects what the skill says it does, then fixed. It is shown on the proof page so anyone can repeat the run.
Can I prove a private skill?
Not yet. The skill must be in a public GitHub repository, because the proof links to the exact commit it was run against.
Looking for the proofs that are already published? See the proven skills.