Starfield Skills -> Social Skills
Scavenging is a skill in Starfield located in the Social Skill tree that improves your chances of finding extra credits, ammo, and aid items while searching containers.
Scavenging Skill Description
There are those who can find just about anything, and their success is usually dependent on knowing how, and where, to look.

Scavenging Skill Ranks
Rank 1
There’s a chance you’ll find extra credits when searching containers.
Rank 2
There’s a chance you’ll find extra ammo when searching containers.
Rank 3
There’s a chance you’ll find extra aid items, like Med Packs or chems, when searching containers.
Rank 4
Tracked resources will get highlighted when using the hand scanner.