Claude, an AI platform, has introduced a new feature called Skills, which allows users to create and manage custom skills that can be used across various Claude products. Skills are folders containing instructions, scripts, and resources that Claude can load when needed, enabling it to perform specific tasks more effectively. The feature is available for Claude apps, Claude Code, and the API, and allows for composable, portable, and efficient use of skills. This enables users to package expertise and make Claude a specialist in specific areas.