Same prompt
Each proof starts with one everyday request, written once and never changed between runs.
“Build a pricing page for a note-taking app with Free, Plus and Team plans.”
New1,403 skills indexed on October 18
Know what a skill does before you install it.
A searchable directory of agent skills for Claude Code, Codex and Cursor. Proven skills show the same prompt built twice, once without the skill and once with it, so you can see the difference for yourself.
1,403skills listed11source repos4proven side by side
Without the skillWith frontend-design
⇆
Skills indexed from
anthropics/skillsvercel-labs/agent-skillsvercel-labs/agent-browserobra/superpowerswshobson/agentsremotion-dev/skillsnextlevelbuilder/ui-ux-pro-max-skillLeonxlnx/taste-skillComposioHQ/awesome-claude-skillsK-Dense-AI/claude-scientific-skillstrailofbits/skills
001/ How a proof works
One prompt, two runs, side by side.
Star counts tell you a skill is popular. A proof tells you what it actually changes, on a task like yours.
Two runs
Claude builds it twice with the same model and settings: once on its own, once with the skill loaded.
Without
With skill
Side by side
Both results are live pages. Drag the divider, click around, and judge the difference yourself.
002/ The directory
Every skill, one search.
Free to search, free to install. Each listing links straight to its source.
Find the right skill for the job
Search by what you're building, or browse by category.
⌕ Try “landing page”, “postgres” or “video”Skills listed today
1,403
From 11 public repos
Install in one line
Each skill comes with a command that copies it into your project.
$ npx degit anthropics/skills/skills/frontend-design .claude/skills/frontend-design
Refreshed every week
New skills are picked up and dead links drop out automatically. Last refresh: October 18.
ProvenSkills with a proof are listed first.
003/ Why proofs
Popular isn’t the same as useful.
Most directories rank skills by stars or installs. Those numbers say who found it, not what it does.
Star counts
What most lists rank by
- Shows how popular the repo is
- Counts the whole repo, not the skill
- Doesn’t show the output
- Can’t be compared on your task
Install counts
Better, still indirect
- Counts the skill itself
- Shows what people try
- Doesn’t show the output
- Can’t be repeated
A proof
What Use This Skill adds
- Shows the real output, live
- Compares with and without
- Records model, settings and version
- Can be run again by anyone
004/ Pricing
Free to browse. Pay once for proofs.
No subscription. Pro is a single payment, and every future proof is included.
Free
$0
For finding and installing skills.
- Search all 1,403 skills
- One-line install for every skill
- A few proofs free to view
Pro
Early price$99 one time
For choosing skills with confidence.
- Every proof, side by side
- Download any with-skill page
- Prompt, model and version for each proof
- All future proofs included
005/ Questions
Good to know.
01What is an agent skill?
A skill is a folder with a SKILL.md file that teaches a coding agent how to do one kind of job well, such as designing a page or writing tests. Claude Code, Codex, Cursor and other agents load them when the task calls for it.
02How is a proof made?
We give Claude one fixed prompt twice, with the same model and settings. The first run has no skill. The second run has the skill loaded. Both results are saved as live pages, and the model, settings and the skill's exact version are recorded next to them.
03Can a proof be repeated?
Yes. Because the prompt, model and skill commit are all recorded, anyone can run the same comparison again. We re-run proofs when a skill changes.
04Is the directory free?
Yes. Searching, browsing and installing every skill is free, and a few proofs are free to view. Pro unlocks the full set of proofs and the source of each demo page.
05Who owns the skills?
Their authors do. We list each skill with a link to its source repository and only show a skill's full text when its license allows it.
06How do I install a skill?
Every listing has a one-line install command that copies the skill folder into your project's .claude/skills directory. You can also open the source on GitHub and copy it yourself.
Install the skill that earns its place.
Search the directory, check the proof, copy one line.