Use this tags for questions about operations performed on objects when they are in sculpt-mode, rather than any of the other modes, such as edit, object and weight painting.

Blender has different tools available for manipulating objects in the 3D Viewport editor, depending on what mode the object is in. One of these is sculpt mode. The manual describes scuplt mode as

A mesh-only mode, that enables Blender’s mesh 3D-sculpting tool.

This tag should be used for questions that are specifically about the operations that can be performed on an object when it is in sculpt mode.