At least for my workflow, which is fairly similar, the result of the first few stages is a refined single prompt, which I then run and the result is a PR. so I, at least, would include that final single prompt over the prior intermediate results.

I also think that might not be everything you need to really vet/recreate those PRs since there's a lot of strategic and operational stuff that goes into the pre-composition runs (sometimes I actually throw everything away and restart), so something a little more sophisticated would be interesting.