Two things, and it stops there.
It follows your hand
Hold up a hand. Toki tracks it and moves a soft marker across the screen. The tracking runs on your Mac — camera frames never leave the machine.
It finds what you ask for
Hold a key and say what you're looking for. Toki looks at your screen and points at the control you need.
It does not take over. The marker is Toki's; your cursor stays yours, exactly where you left it. Nothing is clicked on your behalf — you're being shown where to go, not driven there.