[waffletower]

In my experience the plan is plastic and responsive to iteration through dialogue. I don't think too much structure here is going to be desired by all users. But the "sounds good, but needs these edits" option can save a small amount of interaction. I often use the tab command that exists to modify the yes and no options. If you tab modify "Yes", I believe the plan will be executed and addendums from your additional prompting will be made afterward. By using tab modified "No", you can be clear about what parts of the plan are to be kept and what is to be immediately adjusted. Tab modified "No", definitely works as the "sounds good" option, but perhaps requires slightly more typing than you would like. "No, use most of this, but change..." I don't think there is a glaring lack here at all.