•K-Dense-AI/claude-scientific-skills by K-Dense Inc. - MIT License (139 scientific skills for biology, chemistry, medicine, and computational research)
•anthropics/skills - Official Anthropic skills (21 skills)
•anthropics/claude-code - Development guides and examples (10 skills)
•obra/superpowers by Jesse Obra - MIT License (14 workflow skills)
•alirezarezvani/claude-skills by Alireza Rezvani - MIT License (36 professional role skills)
•wshobson/agents by wshobson - MIT License (48 agents)
•NerdyChefsAI Skills - Community contribution - MIT License (specialized enterprise skills)
•awesome-claude-code by hesreallyhim - CC0 1.0 Universal (21 commands)