A tool caddy assembly to be removably positioned over the top of a folding ladder including a housing having a bottom surface to hold items while the ladder is being used and a bracket to mount the caddy assembly to the ladder. An outer support wall of the bracket extends downwardly sufficiently adjacent the top rung of the ladder to prevent a user from unsafely standing on the top rung of the ladder. A plurality of accessory holders are removably mounted on the top edge of the walls of the housing and/or the bracket.