This feat exists simply to add the supplementary information provided in Chapter 2 of Xanathar's Guide to Everything to a character's sheet so that they can more easily flavor their interactions with their tool proficiencies. It does not function as a standard feat, and is not to be taken as part of an Ability Score Increase.

Potter’s tools are used to create a variety of ceramic objects, most typically pots and similar vessels.

Components. Potter’s tools include potter’s needles, ribs, scrapers, a knife, and calipers.

History. Your expertise aids you in identifying ceramic objects, including when they were created and their likely place or culture of origin.

Investigation, Perception. You gain additional insight when inspecting ceramics, uncovering clues others would overlook by spotting minor irregularities.

Reconstruction. By examining pottery shards, you can determine an object’s original, intact form and its likely purpose.