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

Open-source tool. Self-hosted setup.
A meta-skill for prompt engineering itself: it drafts precise prompts for other AI tools while trying to avoid the token waste common in trial-and-error prompt iteration, keeping context and memory intact across the process.
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.

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

Persistent file-based planning for AI coding agents and long-running tasks.

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

Comprehensive open-source library of AI research and engineering skills for any AI model.

The #1 Agent Skills library for science, used by 170,000+ scientists worldwide — 161 ready-to-use validated skills plus 100+ scientific databases.

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

Claude skill: multi-source content processor for NotebookLM, supporting WeChat articles, web pages, YouTube, PDF, Markdown, and search queries.

Skills shared by Baoyu for improving daily work efficiency with AI agents (Claude Code, Codex, etc.).

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

Tutorials, guides, and agent skills directories.