Claudemy: an open-source alternative to Udemy and Coursera. Give Claude a topic, it researches the web and builds a course of 2-minute audio lessons with cited sources. A free Claude Code skill.

Make videos with code and AI agents: write HTML, render MP4. Open source.

Best Motion graphics and video editing skill for Claude Code, Codex and Cursor. Plan, animate, edit, caption and sound-design complete videos, rendered locally without After Effects.

Local NotebookLM for Claude Code via Google Antigravity (agy / Gemini 3.x): /agy:notebook turns a folder of documents into per-doc summaries + a relevance index + a cited synthesis + Q&A. Plus audio/video transcription, deep web research with citations & branded HTML reports. 13 commands, no Node runtime.

Karpathy's understanding ladder as agent skills: auto-pick text, diagram, interactive HTML, or video storyboard for any explanation. Nothing cut. English + 中文.

Native-feeling image generation for Claude Code, powered by your local Codex (ChatGPT) image_gen. No API key needed.