Agent skills turn specialist procedure into something that can be loaded on demand

A capable general model may still lack the procedures that make work reliable inside a particular organization. Anthropic’s Skills proposal packages those procedures into directories containing instructions, references, and executable resources.

The design uses progressive disclosure. A short name and description help the agent decide whether a skill applies. It then reads the main instructions and, only when necessary, supporting material or scripts. The whole manual need not occupy every conversation.

The PDF example makes the distinction concrete: understanding what a form requires is different from repeatedly implementing the mechanics of filling it. Reusable code can handle the latter. The broader idea is to preserve local operating knowledge in inspectable artifacts. Quality still depends on the procedure being correct, relevant, and maintained; packaging an instruction does not validate it.