Gearhead

Prerequisite Gnome

You have a knack for figuring out how to get the most out of tools, whether you're familiar with them or not.

You gain proficiency in one tool kit.
Your proficiency bonus is doubled for any ability check you make using a tool proficiency gained from this feat.
When using a tool you're not proficient with, you can add half your Intelligence modifier (rounded down) to any ability check you make that doesn't already include your Intelligence modifier.