The skill is lean and efficient, assuming Claude's competence. No unnecessary explanations of basic concepts; every section adds actionable value. Tables are used effectively to compress information.

Provides concrete classification taxonomy, step-by-step process, worked example with actual requirement text, component extraction table, and specific output format template. Highly executable guidance.

Clear two-step process (Align → Classify) with explicit sub-steps. The worked example serves as validation of understanding. The 'Do not' section provides error-prevention checkpoints for common mistakes.

Well-organized with clear sections progressing from classification → alignment → classification details → worked example → anti-patterns → output format. Self-contained skill that doesn't need external references for its scope.

Lists multiple specific concrete actions: 'Compares two versions', 'reports additions, removals, semantic changes, and scope drift', and 'distinguishing clerical edits from meaning changes'. These are clear, actionable capabilities.

Clearly answers both what (compares versions, reports changes, distinguishes edit types) AND when with explicit 'Use when' clause covering three scenarios: spec revision, standard version changes, and user asking about differences.

Includes natural keywords users would say: 'requirements document', 'spec', 'revised', 'standard', 'what changed', 'spec versions'. Good coverage of variations including formal ('requirements document') and informal ('spec') terms.

Clear niche focused specifically on requirements/spec document comparison with distinct triggers like 'requirements document', 'spec versions', 'scope drift'. Unlikely to conflict with general document or diff tools due to domain-specific focus.