Structural Eligibility Screening

Structural Eligibility Screening (SES) v1.0 is a deterministic, interpretation-only framework for classifying contract configurations into structural eligibility categories based solely on primitive state transitions and rewrite-window operator behavior. SES operates over a closed, enumerated structural phase space of 60,000 structurally valid scenarios (filtered from 270,009 candidates by a structural validity predicate), collapsed into four structural equivalence families, and classified into exactly three categorical outcomes:

 

STRUCTURE_CHANGING_REWRITE_ELIGIBLE (39,530)

FRAGILITY_AMPLIFYING_REWRITE_ELIGIBLE (19,009)

BUFFER_ONLY_ELIGIBLE (1,461)

 

SES v1.0 is implemented as a five-stage deterministic method: (1) exhaustive enumeration with validity filtering, (2) equivalence-family collapse, (3) rewrite-window operator application producing primitive deltas, (4) rewrite sensitivity classification, and (5) an independent eligibility overlay that does not influence scenario generation. The system explicitly refrains from prediction, optimization, scoring, financial modeling, legal analysis, or investment recommendations. It provides categorical structural classifications derived from deterministic primitive transitions, supporting reproducibility through run artifacts, run IDs, and SHA-256 integrity hashes.