Bonetti's Defense Question

Bonetti's Defense
For 5...10 seconds, you have a 75% chance to "Block" incoming melee attacks and arrows. You gain 5 Energy for each successful melee attack blocked. Bonetti's Defense ends if you use a skill.

The Skill text says Bonetti's Defense ends if you use a skill. Does that include adrenaline attacks, stances and signets or does it mean any skill?

Everything you see when you press K.

if it's on your skill bar, it's a skill. When you use Bonetti's, the only thing you can do and not make it go away is stand there and swing, no fancy stuff.