Character skins for T and CT side — pure cosmetics with their own collector scene.
Agents are character models that replace the default player skins, split into CT-side and T-side agents. They were introduced in 2019 and have since become a fixture of loadout identity.
A complete CS2 loadout includes an agent per side — which is why Skinventory's builder has CT and T agent slots in its equipment lane, priced with live market data like every other slot.
No. All agent models share identical hitboxes — agents are purely cosmetic.
Not stickers, but patches — a separate item type applied to agents, consumed on application like stickers on weapons.