Ask to Agent > Plan

(sorry if this is obvious)

Before Plan mode was introduced, I think most people just used Agent for coding and Ask for analysis. I personally did not use Ask and then Agent for new code.

I am now seeing that this approach is better than a one shot Plan attempt. Ask about crafting a new feature and have a few exchanges to clarify, then ask Agent to execute. I think this is better than relying on Plan to ask the correct clarifying questions. I haven't tried Ask > Plan > Build as a flow yet.