Skills for AI agents: reusable instructions that scale

AI agents get much useful when they do not have to rediscover your workflow every time. That is the idea behind skills: reusable instructions, scripts and references that teach an agent how to do a specific kind of work. What a skill is A skill is usually a small, versioned package of instructions. At minimum, it contains a Markdown file that tells the agent: when to use the skill what steps to follow which tools or commands matter what output should look like what constraints apply Some skills also include scripts, templates or reference files.