L1 Paper 7 Yukawa Realizability under Minimal Chiral Load

This paper examines the realizability of Yukawa-type couplings within an admissible local skin subject to minimal chiral asymmetry. The analysis is eliminative: it shows that once standing preservation, admissibility, and identity persistence are fixed, only a restricted class of coupling relations remains viable. Yukawa structures are thereby classified not as free modeling inputs, but as constrained representational outcomes licensed by minimal chiral load. The paper demonstrates that in the absence of minimal chirality, such couplings either collapse into symmetric degeneracy or require illicit scope transport to maintain stability under composition. Continuous variation or arbitrary assignment of couplings is shown to be structurally inadmissible, as it undermines non-degenerate interaction or standing conservation. No primitives, mechanisms, or parameter-fitting procedures are introduced. The contribution is boundary-setting: it clarifies why Yukawa-like structures must appear in a specific constrained form in any admissible local representation, and why alternatives fail on structural rather than empirical grounds.