Ratified by Shay 2026-07-24. Default flipped False -> True.
Evidence at ratification:
- 25 shape-bands, each holding SERVE at 720/720 wrong=0 on the SHA-sealed
ratified ledger (theta_SERVE=0.99, n >= 657 committed per band);
- deduction-serve lane 166/166 wrong=0 across six hand-authored splits;
- commit gate narrow by construction — a sentence-initial "therefore" IS an
argument, so the composer cannot claim turns that are not one;
- an unearned shape is still served DISCLOSED, never asserted.
Blast radius verified, not assumed: core test --suite deductive 268 passed
with the flag ON by default; a live default-config ChatRuntime decides real
English and existential arguments through grounding_source="deduction" while
ordinary turns still fall through to pack grounding; lane pins 10/11 match —
unchanged by the flip (the single miss is the pre-existing public_demo drift
documented for Tier S).
Rollback is flipping this back: flag-off remains byte-identical to pre-arc
dispatch and leaves no residue, pinned by
test_flag_off_preserves_pack_token_gloss_byte_identity.
curriculum_serving_enabled stays OFF — every curriculum band is unearned, and
the Sonnet brief now records the explicit bar for revisiting it.
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