Last month I spent an evening looking for a skill that does one specific thing: pull structured data out of PDFs and drop it into my local RAG. By the time I found something that worked, I'd been through nine repos with nearly identical names, two archived ones, and one that turned out to be a demo with no license file.
That's the problem with finding agent skills the way we've always done it: raw search. GitHub is where things live, but it's not where you go to compare them. There's no install count on the repo page that means anything, no category tree, and "most stars" rewards whatever got there first, not what actually works.
So I stopped doing it by hand. A friend of mine built a site for exactly this (AIMarketly), and after using it for a few weeks it's become the first place I look before I touch GitHub at all.
What it actually is
It's a marketplace for AI tools, prompts, skills, and agents in one catalog: 11,000+ skills across 34 categories, updated weekly, human-reviewed, free to browse. The part that sold me isn't the size. It's the install counts next to each skill.
Example: find-skills (the meta-skill for discovering other skills) shows around 21K installs in Cloud & Infrastructure. frontend-design sits at nearly 150K. That number is a signal you can't get from a repo page: it tells you what people actually run versus what's a one-person demo that never got past the README.
How I use it now
My workflow is boring, which I like:
- Browse by category instead of searching by keyword: categories surface things I didn't know to ask for.
- Check the description and install count before anything else. Low installs isn't a disqualifier, but high installs on a vague description is a red flag in the other direction.
- Read the SKILL.md before installing. The site shows you enough to judge; the file tells you what it actually does to your agent.
For tools and agents (not just skills) it compares features, pricing, and ratings side by side, which saves me the "read four vendor blogs" step.
The honest caveats
It's young. Some categories are thin, and human-reviewed means curated, so there's a lag between something landing in the ecosystem and showing up here. I treat it as a shortlist generator, not the final word: if a skill looks right, I still read its file before it touches my setup. And since it's free, the bar for trying it is zero.
If you're assembling agent skills by hand right now (GitHub search plus vibes), give it a look: https://www.aimarketly.com
FAQ
Is it just a list of links?
No. Each entry has a description, category, install count, and (for tools) pricing and ratings. It's closer to a comparison table than a link dump.
Does it cover prompts too, or only skills?
Both, plus agents and full tools. The skill catalog is the biggest section by far.
Why trust a friend's site over a bigger directory?
I don't. I use it because the install counts and categories save me an hour per search, not because of who runs it. If it stops being useful I'll stop using it.
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