Agent skills and plugins

skills anthropics

Check the licence

A collection of example Agent Skills for Claude, each a folder with a SKILL.md file of instructions, scripts and resources. They teach Claude to carry out specific tasks repeatably, such as creating documents, testing web apps or following brand guidelines.

OpenSpec Fission-AI

Worth a look

OpenSpec is a command-line tool that adds a planning step to AI coding assistants. It has the AI write a proposal, requirements and a task list in plain Markdown for you to review before any code is written.