Attune is an algorithm which temporarily reduces the PWR cost of using programs, for a duration of 2–3 turns. While Attune is active, all programs cost 1 less PWR to use, down to a minimum of 1, unless the program already costs 0 PWR to use.
Attune's effect stacks with the program Charge, with other instances of Attune if they are active at the same time, and with the opposing effect of Modulate.