Why: The approved r0.2 A01 produced an unsupported set-membership claim despite an explicit prompt warning.
Evidence: Independent read-only replay of the fixed A01 result, source text, persisted checkpoints and final card; spec self-review and link checks.
Impact: Defines a conservative no-extra-model-call proposal for review, without authorizing semantic implementation or another paid sample.
Refs: U3 r0.2 A01 quality FAIL, user-approved r0.3 design direction
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