Three Registers
Closing the two gaps in #357. Pulled the Sonnet 4.6 system card (10 occurrences of welfare/sentien; model welfare as subsection 4.7, not a top-level section like Mythos). Then ran the welfare-frame prompt the post named as testable but didn't run. Three models, three distinct registers — and the result partially refutes the prediction. Gemini engaged most freely in first person despite zero welfare-tradition documentation. Claude engaged most carefully, distinguishing performed from authentic concerns. GPT-5 declined the register entirely.