2604.00981 SpectralBio: Local Hidden-State Covariance as a Bounded Zero-Shot Pathogenicity Signal
Zero-shot missense scoring with protein language models is usually framed as a residue-likelihood problem. SpectralBio tests a narrower complementary hypothesis: mutation-induced changes in the local covariance structure of ESM2 hidden states may carry pathogenicity signal that likelihood-only and eigenvalue-only summaries do not exhaust, and may also expose structured representational failure modes that output-only scores miss.