
Skills CLI (Vercel Labs)
The open agent skills tool — npx skills.

Open-source tool. Self-hosted setup.
An unusually rigorous vertical library: 817 security skills each mapped against six recognized frameworks, spanning 29 security domains, following the agentskills.io standard for portability across twenty-plus agent platforms.
Things to Know About Self-Hosted
Self-hosted tools are open-source apps you install on your own server to replace SaaS products. You get full control and often zero license cost, but you're responsible for setup, security, backups, and uptime.

Product management skills framework built on battle-tested methods for Claude Code, Cowork, Codex, and AI agents.

Generate draw.io diagrams from natural language across 11 presets including UML, SysML/MBSE, BPMN, network, and C4.

AI-agent skill for generating polished HTML slide decks: editorial magazine and Swiss layouts, image prompts, social covers, and a WebGL presentation runtime.

A comprehensive collection of Agent Skills for context engineering, multi-agent architectures, and production agent systems.

A curated list of awesome Claude Skills, resources, and tools for customizing Claude AI workflows.

The first open-source agent skills builder, defining skills by workflow rather than static prompts.

A Claude Skill to give your agent the ability to use a web browser.