Uses the Bot Builder v4 SDK
This extension lets you create advanced Bot Framework Skills within Visual Studio. With the extension, you can create a new skill via
Bot Framework Skill Template
Developers can compose conversational experiences by stitching together re-usable conversational capabilities, known as Bot Framework Skills.
Within an Enterprise, this could be creating one parent bot bringing together multiple sub-bots owned by different teams, or more broadly leveraging common capabilities provided by other developers. With this preview of Skills, developers can create a new bot (from the Virtual Assistant template and add/remove Skills with one command line operation incorporating all Dispatch and Configuration changes.
Skills are themselves Bots, invoked remotely and a Skill developer template (.NET, TS) is available to facilitate creation of new Skills.
This documentation page has further information.