[zozbot234]

That "first draft" still has to start with a spec. Your only real choice is whether the spec is an actual part of project documentation with a human in the loop, or it's improvised on the spot within the AI's hidden thinking tokens. One of these choices is preferable to the other.

[manmal]

I agree, and personally I often start with a spec. However, I haven’t found it useful to make this very detailed. The best ROI I‘ve been getting is closing the loop as tightly as possible before starting work, through very elaborate test harnesses and invariants that help keeping the implementation simple.

I‘d rather spend 50% of my time on test setup, than 20% on a spec that will not work.