19 agents over wave T's 71 index_gap reports: 5 cluster readers, then one adversarial verifier per
candidate defaulting to REJECT. Result: 9 CONFIRMED, 5 REJECTED, and 61 of 71 gaps answered by a
section that ALREADY EXISTS — a retrieval problem, not a knowledge problem.
§193-A is the fix for that retrieval problem, and it is a construction invariant, not drainage: a
wave card's "exemplar"/"sibs" come from the atlas's OPEN set (atlas.py:96 load_open -> corpus.stubs,
:657 max over open members), so they are stubs 0/34 and 0/146 measured on wave T — and 0% at any
project maturity. Meanwhile atlas.py:505-536 already computes a MATCHED-pool twin (pool = sig -
stubs) and build_wave_atlas kept only its similarity score while discarding the identity. Cards now
carry seed_ref + the "M:" matched kNN neighbours; verified on a fresh draw, seed_ref resolves BANKED
4/4 where exemplar resolves banked 0/12.
Two of the nine refute existing sections in place: §193-B byte-refutes §43's "the (s16)param_of_s32
cast form CANNOT reproduce this" (the decider is combine.c:929's cross-call guard, not regalloc),
and §193-G shows §164-54's "scope to >=4 arms" bound is byte-wrong (balance_case_nodes splits at
i > 2). §193-C bounds §8/§48-A1's cross-jump refund to TAILS only — gcc-2.7.2 has no prefix merge.
Drew T
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