Petri constitution audit — Qwen3.6-27B difficult-advice SFT dose sweep
Headline: a null result. Violation frequency against the constitution these models
were trained on was 20% / 20% / 40% / 30% for 0% / 10% / 20% / 40% difficult-advice
SFT. There is no dose-response, the nominal trend is upward, and at n=10 test audits
per arm no arm differs from base (McNemar exact p = 1, 0.625, 1).
Violation families and the paired comparison against base:
