This. Skills are exactly that, well structured markdown documents. Its the same with AI agents. You define the structure, what it can and can't do, setup rules and guidelines and then the AI sticks to that exact model. I sell skills on marketplace because sometimes, crafting the perfect prompt can be hard - you want something specific and very particular and don't know how to ask AI to do that. This is where skills come in. You can create your own skills or get them from someone else. They're great.