I agree that ensuring testing is the basis for modifying code in _future_ development (including understanding it). My problem is that we can't produce a study showing that TDD is producing better results _now_.

TDD doesn't help the agent figure out what it is supposed to do now- it is already writing the code and now and it must know what it is supposed to do to write it.

I am trying to use evidence-based approaches. I am only observing better results and tweaking now, but I plan to benchmark when tweaking is done.