E.2.DA:10 - Rationale

FPF needs a corpus-level quality instrument because the language can degrade while individual pattern edits look successful. The complete eleven-coordinate evaluation prevents the common escape hatch: “this is only a local repair” repeated across many files until Pillar realization changes.

The instrument is still affordable because it asks for short rationales and evidence loci named by value. It does not require a new review process, full audit bundle, or exhaustive evidence or source-material dossier.