Prd

A specification validation skill that ensures quality of PRDs, SDDs, and implementation plans using the 3Cs framework (Completeness, Consistency, Correctness). It can validate individual files, compare implementations against specifications, check cross-document alignment, and validate understanding of design decisions.

A product requirements specialist skill that helps create and validate Product Requirements Documents (PRDs). It provides structured templates, EARS-formatted acceptance criteria patterns, multi-angle validation workflows, and iterative review cycles to ensure comprehensive requirements documentation.