On-demand specialization
Each skill encapsulates expertise in a specific domain — from DevOps to marketing, security to UX.
🆕 New skill: Pstack Skill! Lauren Tan's rigorous engineering orchestrator — 23 playbooks, 21 procedures, and 21 principles in a single skill for any agent.View skill →
Skill+DEV — AI Agent Skills Catalog
A practical skill system for engineers who want to use AI without compromising their standards. Install the ones you want and activate with a slash command.
Skill+DEV is an open-source catalog of 23 Agent Skills for AI agents, maintained by Fabricio Telles under the Apache 2.0 license. Each skill is a folder with a SKILL.md file the agent loads on demand — it works in Claude Code, Cursor, Kiro, Windsurf, and any agent that supports the open Agent Skills format. One command to install: npx skills add fabricioctelles/skills. Four skills carry their own license — see the table.
Install all skills
$
npx skills add fabricioctelles/skillsManual clone
$
git clone https://github.com/fabricioctelles/skills.git ~/.skillsWhy Skills for AI Agents?
Section titled “Why Skills for AI Agents?”According to Anthropic, structured skills improve agent response quality by up to 40% compared to ad-hoc prompts.
Open format
Compatible with Kiro, Cursor, Claude Code, and any agent that supports Agent Skills.
1-command install
Use npx skills add or clone directly from GitHub — zero configuration.
Validated quality
Each skill passes structured evaluation with objective metrics.
Featured Skills
Section titled “Featured Skills”Security Specialist
6-phase pipeline, 9 attack classes, and adversarial validation. View skill →
Loop Architect
Orchestrate agents in continuous feedback loops. View skill →
Humanizar
Write and rewrite in PT-BR without AI tics — 13 voice profiles and a factual lock. View skill →
Pstack Skill
The pstack rigorous engineering orchestrator — 23 playbooks, any agent. View skill →
Frequently Asked Questions
What are Skills for AI agents?
Skills are specialized knowledge modules that extend AI agent capabilities. Each skill encapsulates expertise in a specific domain — security, DevOps, marketing, UX, LGPD — enabling the agent to operate with depth on complex tasks without extensive prompts.
The Agent Skills format is an open standard adopted by thousands of developers globally.
How do I install skills in my agent?
Use the command npx skills add fabricioctelles/skills to install all skills from the repository. You can also:
- Install a specific skill:
npx skills add fabricioctelles/skills -s humanizar - Clone manually:
git clone https://github.com/fabricioctelles/skills.git - Copy only the desired skill folder to your project
Which agents are compatible with skills?
Skills are compatible with any agent that supports the Agent Skills format:
- Kiro — native support via KiroCrew
- Cursor — place in
.cursor/skills/ - Claude Code — via plugins or local folder
- Windsurf — support via extension
- Others — any agent with custom prompts system
Can I create my own skills?
Yes! The format is simple: a folder with a SKILL.md file containing instructions. Check the skill structure for details. You can publish on Skills.sh or keep it private.
Do skills work offline?
Yes, once installed. Skills are local Markdown files — they don't depend on external APIs to work. The AI agent reads the skill instructions and applies them during the conversation.
What's the difference between skills and system prompts?
Skills are modular specializations you activate on demand (with /skill-name), while system prompts are global instructions always active. Skills allow:
- Context switching without editing configurations
- Combining multiple specialties in one session
- Versioning and sharing knowledge across projects
Are skills free?
Most skills in this repository are open-source under the Apache 2.0 license — use, modify, and redistribute freely. Four carry their own terms: Revenue-Centric Design (source-available, attribution required, no gambling), Motion Ad (CC BY-NC 4.0, no commercial use), and Coolify Operator and Loop Architect (MIT). The full table is in the catalog. The code is available on GitHub.
How do I update installed skills?
Run npx skills update to update all skills to the latest version. To check current version: npx skills list.