The AVAD Plan Design Review skill acts as a senior product designer to critique and improve project plans before implementation begins. It evaluates technical plans across seven critical dimensions—including information architecture, interaction states, and accessibility—rating each from 0-10. By identifying 'AI slop' and missing edge cases like empty states or responsive layouts, it proactively edits the plan to include specific design decisions, ensuring the final output is intentional and user-centric rather than accidental or generic.