This mod allows you to bind a key to set your active item to nothing. So you won't accidentally break anything, spend stamina or embarrass yourself by swinging edged things in public place.

Key defaults to the OemTilde (~ the key to the left from 1). Use config.json to configure it (will be created after the first run).

Requirements:
SMAPI 1.12+. Probably would work with earlier versions too, though.

Installation:
See SMAPI mod usage guide.

Source code:
On GitHub