Conciseness

The body is lean and directive throughout — "Deep navy canvas with warm-yellow italic Cormorant serifs", a 6-step workflow, an exact output-contract snippet, and license attribution. Nothing explains concepts Claude already knows, and every section (Best for / Avoid for, At a glance) earns its tokens by informing template selection. Matches 'Lean and efficient; assumes Claude's competence; every token earns its place'.

Actionability

Guidance is written concretely ("Clone `example.html`", "duplicate an existing slide of the most appropriate layout", exact `<artifact identifier="zhangzara-vellum"...>` block), but the primary working file `example.html` — along with `template.json`, `LICENSE`, and the referenced `assets/deck-stage.js` runtime — does not exist in the bundle, so step 1 cannot be executed as shipped. Matches 'Some concrete guidance but incomplete... missing key details'. Not a 4 because the missing working file breaks the core action; not a 2 because the written steps and output contract are specific.

Workflow Clarity

The workflow is a clearly sequenced 6-step list (clone → replace placeholders → preserve the design system → adjust length → design missing layouts → keep the nav runtime) with concrete detail in each step. Matches 'Clear sequence with most checkpoints present; minor validation gaps' — there is no final validation step (e.g. verify the emitted HTML renders or that page-number labels are consistent after duplicating/dropping slides). Not a 5 for that missing checkpoint; the destructive/batch cap does not apply since this is deck generation, not a destructive operation.

Progressive Disclosure

The body itself is well organized with one-level-deep, clearly signaled references ("[`LICENSE`](./LICENSE)", "See `template.json`"), but every referenced path — `example.html`, `template.json`, `LICENSE`, `assets/deck-stage.js` — is absent from the actual bundle (no references/, scripts/, or assets/ directories exist). Scored against the real bundle structure per the guideline: broken references mean navigation fails. Matches 'Some structure but could be better organized; references present but not clearly signaled'. Not a 4 or 5 because referenced files do not ship; not a 2 because the body's own structure and signaling are clean.

Specificity

The description names a concrete domain ("A humanities lecture", "decision-grade academic research deck for faculty, graduate seminar") but contains no concrete actions whatsoever — there is no verb stating what the skill does (e.g. create, build, generate). It is a topic statement, matching the anchor 'Names the domain but actions are minimal or generic'. Not a 1 because the domain itself is specific rather than abstract; not a 3 because even 1–2 concrete actions are absent.

Completeness

The 'what' is only vague: "Built as a decision-grade academic research deck" describes the artifact, never the skill's function, and there is no 'Use when...' clause or equivalent trigger guidance anywhere (per the guideline, a missing 'when' caps this dimension, and the vague 'what' puts it at the lower anchor). Matches 'Has a vague what and no when'. Not a 3 because the what is not clearly stated; not a 1 because the domain and audience are at least identified.

Trigger Term Quality

Some natural phrases a user would say are present ("humanities lecture", "academic research deck"), but common variations users actually use for slide work — "slides", "presentation", "HTML deck", "PowerPoint" — are missing from the description. Matches 'Some relevant keywords but missing common variations or synonyms'. Not a 4 because the keyword set is thin; not a 2 because more than two relevant natural terms are present.

Distinctiveness Conflict Risk

The very specific topic framing ("how Renaissance linear perspective reshaped early cartography — sources, argument, and evidence") gives it a clear niche with minimal conflict risk against unrelated skills. Matches 'Mostly distinct; minor overlap risk' — not a 5 because the skill's real function (an HTML slide template) is never surfaced, so generic research/presentation requests could route here incorrectly.