PTENES
COURSE · DATA-DRIVEN · FREE

Creating Agent Skills
From the Catalog to Your First Skill

Instead of abstract theory, this course starts with a real analysis of 39.366 skills collected from the skills.sh. You’ll understand the ecosystem, recognize what a skill is good, dissect the best ones and learn to create your own — focusing on what really matters.

39.366 skills in the catalog 131 with 100k+ installations your skill done the right way

A snapshot of the ecosystem that serves as the basis for the course (collected via the skills.sh API):

39.366
cataloged skills
5.075
source repositories
53,9M
combined installs
16
thematic groups

📊 The data that changes everything: 60% of skills have fewer than 100 installs, and only 131 exceed 100 thousand. The 100 most installed concentrate 43,7% of all installs. The ecosystem follows a power law — and this course teaches you how to play on the right side of the curve.

The 5 tracks

A journey from overview to practice: understand → recognize → dissect → create → think. Each track ends with the practical trio: ⭐ The Best · 🛠️ How to Create · 🚀 Advanced Tips — 26 modules total, with the final lesson on Regras 2026.

TRACK 15 modules

🌍 Ecosystem Overview

What an agent skill is, why the format won, and the real skills.sh landscape: 39k skills, the power law, and the 16 groups. + Starter Pack · First skill in 10 min · read the ecosystem like a pro.

TRACK 25 modules

⭐ Quality & The Best

How to read quality signals (installs, source, description) and a showcase of the best skills by group, with real examples. + the best by signal · create a high-quality skill · signals only experts notice.

TRACK 35 modules

🧬 A Skill's Anatomy

Inside SKILL.md: frontmatter, body, progressive disclosure in 3 levels, and the description that makes the skill trigger at the right time. + anatomies to imitate · build a SKILL.md from scratch · multi-file and routing.

TRACK 45 modules

🛠️ How to Create (the Loop)

From intent to first draft, and the test → evaluate → iterate loop with evals and description optimization. The skill-creator method. + the best meta-skills · full walkthrough with evals · optimization and benchmarking.

TRACK 56 modules

🧠 What to Think About

The mental models: when a skill is (and ISN’T) worth it, the anti-patterns that kill skills, and how to publish, version, and measure—from GitHub to the portal. + the best process skills · from decision to publish · governance, security, and scale · 2026 rules for 5.5 models.

🏆 The 5 most installed in the catalog

find-skills · vercel-labs/skills
1.802.925
frontend-design · anthropics/skills
488.299
vercel-react-best-practices · vercel-labs/agent-skills
443.261
microsoft-foundry · microsoft/azure-skills
360.755
web-design-guidelines · vercel-labs/agent-skills
358.627

Trail 2 breaks down why these (and the best in each group) made it there.

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