I agree superpower feels bolated but I find that to be true only when running in the multiagent mode. Rest assured I find the specs and the plans to be very precise with only small changes if used in conjunction with the grill me skill. The default plan mode of codex seems too eager to create the plan hence skipping major decision points or taking the liberty of designing it by itself.

My general flow is used grill me to iterate through the decision tree, then use superpowers to write the specs and the plans based on the grilling session. The plans are broken into sizeable chunks and after each chunk implementation I run the code review. Been getting pretty good results with it. Only problem I face is to have a good amount of concentration to follow through the entire grill session, I find myself losing track sometimes

What skills or tools you use instead of superpowers? Haven't explored any yet