So that "stateless vs builder-adversary" and "lean vs stateless" isolate context hygiene / review granularity WITHOUT the confound of the minimal prompts' reduced testing pressure (which we found cuts ~25% of test methods). stateless = orig + context hygiene; lean = orig + context hygiene + per-gate review. min stays the pure minimal-prompt variant (isolates verbosity vs orig). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>