I climbed it in early August several years back, considerably on the late side of the season.
It was mixed snow and rock, class 2-3 most places, about two class 4 moves. We did not rope up ascending, nor rappel down.
There was only one spot that was a little uncomfortable--the only time I've ever completely lost contact with the rock--but I just slid down, my body wrapped around a rock outcropping. Just dropped about a foot, and then connected with the rock again.
I'd say, since conditions vary, see what it looks like when you get to the base of the pyramid, and discuss with your partner(s) what makes the most sense. If you're proficient scramblers, likely you won't need to rope up, or down. Go up there prepared, and see what it's like.
Most likely a scramble up and down will suffice.
HTH, and have a great climb.
P.S. Watch for the weather. Both times I climb/tried to climb the mountain, we went up in perfect sunny weather, then a storm moved in very quickly early morning, when we were getting ready to go up. I've decided that if I ever go back, I will place wands, no matter the forecast. We had a hell of a time getting back to camp, the second time, when we did summit, and a cloud rolled in, clouds rolling and tumbling toward you, out of the blue, at the speed of a train. A truly amazing and memorable phenomena to observe. I've only seen it on Shuksan, both times I've been up there.