Consider creating an AI stakeholder that speaks for the client. This approach would allow the client to provide input that is wordy or scattered, and the consultant could receive immediate responses by asking the AI model most questions. Better yet, they can ask in a just-in-time manner, which results in less waste and lower mental stress of collecting all possible critical information upfront.
As the project progresses, the AI model would likely gain a better understanding of the client's values and principles, leading to improved results and potentially valuable insights and feature suggestions.