A folder arrangement that keeps the stages of the work apart: evidence/ for original records, analysis/ for investigations and calculations, output/ for drafts, prompts/ for the instructions used at each step — plus project-instructions.md and desired-outcome.md.
A chat containing your recollection of the evidence is a different starting point than the records themselves. The arrangement gives you smaller results to inspect, and a reviewer a sequence to follow without relying on the assistant’s memory of what it did.