GitHub Copilot is good at writing code, but it does not automatically know how you, your team, or your organization prefer to work. Agent Skills give you a way to package that knowledge into reusable capabilities that Copilot can use when needed.

But what should actually become a skill? Where should skills live? How do you share them between developers, repositories, and teams? And how do they relate to custom instructions, prompts, and agents?

We will also go beyond GitHub Copilot and look at the open Agent Skills standard, how skills can be reused across different AI assistants, and where you can find existing skills instead of building everything yourself.