Conciseness

The body is lean with no padding or explanation of concepts Claude already knows, but the md shadow string is duplicated between "Shadow Utilities" and "Examples", and the per-size "Use for..." lines are restated in "Usage Rules", leaving minor redundancy that could be trimmed; this fits anchor 4 rather than a clean 5.

Actionability

Provides exact, copy-paste-ready Tailwind arbitrary-value classes for all three sizes plus a concrete HTML example, fully executable and covering the common cases, matching anchor 5.

Workflow Clarity

A simple single-purpose skill where the one action (choose a size by surface type and apply it) is unambiguous thanks to the "Use for..." guidance, "Usage Rules", and "Avoid" boundaries; the simple-skill exception applies so this can score 5.

Progressive Disclosure

Under 50 lines with no external references needed, organized into clear sections (Use When, Shadow Utilities, Examples, Usage Rules, Avoid); per the rubric's simple-skill guidance, well-organized sections without bundle files can score 5.

Specificity

Names the concrete action ("Apply exact Tailwind arbitrary shadow utilities") plus the layered neutral elevation domain and a range of target surfaces, but centers on a single core action rather than listing multiple distinct actions, so it sits at anchor 4 rather than 5.

Completeness

Explicitly answers both what ("Apply exact Tailwind arbitrary shadow utilities for polished, layered neutral elevation") and when ("Use when compact cards, controls, panels... need refined shadows") with concrete trigger phrases, matching the anchor 5 example.

Trigger Term Quality

Surfaces natural UI terms a user would actually say ("compact cards, controls, panels, popovers, hero media, feature callouts, or modal-like containers") with strong coverage, though it stays within one vocabulary family rather than spanning synonyms and variants, matching anchor 4.

Distinctiveness Conflict Risk

Carves a clear niche (exact arbitrary-value neutral shadow utilities, explicitly "without default Tailwind shadow scales or colored tinting") with distinct surface-type triggers and minimal overlap with other skills, matching anchor 5.