Conciseness

The body is dense, prescriptive rule text with almost no concept re-explanation, but the opening framing paragraph ("A 4:3 page is a square-ish presentation canvas. It supports readable talk-track slides...") is characterization that could be trimmed to a line, matching the 'minor instances of over-explanation' anchor rather than a perfect 5.

Actionability

As an instruction-only skill it supplies fully concrete, executable guidance: exact px floors with Tailwind classes ("at least 24px (Tailwind `text-2xl`...)", "headings are at least 32px"), numeric budget ranges ("64-112px total per axis", "80-140px after wrapping"), and machine-checkable markers ("`@ppt-chart-height=N` marker aligned with the `h-[Npx]` class", "`data-ppt-density=\"high\"`"). This is copy-paste-ready direction covering the common cases, so it is not the level below (4) where 'concrete code or commands with minor gaps' would apply.

Workflow Clarity

A clear phased sequence is present — Preflight ("Before writing HTML, decide:"), budgeting ("Calculate before writing"), repair, then an explicit validation gate ("Before delivery, run `references/checklist.md`") — plus if-then feedback loops ("If the page feels cramped, reduce real content columns...", "If a table is clipped, keep only key columns..."). Not a 4, because the anchor's 'minor validation gaps' does not hold: the P0/P1/P2 checklist checkpoint is explicit and the repair section covers error recovery.

Progressive Disclosure

SKILL.md is a proper overview with well-signaled, one-level-deep references — "`references/catalog.md` - named 4:3 presentation patterns" and "`references/checklist.md` - P0/P1/P2 structural self-check" — both of which exist in the bundle and are re-cited in context (pattern lookup, delivery checklist). Pattern detail lives in catalog.md and validation in checklist.md, so content is appropriately split with no nesting; this is the 'clear overview, one level deep, easy navigation' anchor, not the level below with organization gaps.

Specificity

It names the domain and several concrete capabilities — "Defines square-ish presentation layout, two-zone and 2x2 structures, chart/table budgeting, column discipline, plus catalog and checklist references for 1600x1200 canvases" — matching 'lists several specific actions; minor gaps in coverage'. Not a 5: coverage is strong on structures but describes what it defines rather than comprehensively enumerating what it does (e.g., no mention of repair-time checks or density rules), and the 'Defines...' framing is more inventory than action list.

Completeness

Both what and when are explicit: what — "Defines square-ish presentation layout, two-zone and 2x2 structures, chart/table budgeting, column discipline"; when — "Must be read before creating, relaying out, or repairing standard 4:3 Oh My PPT pages", which is equivalent explicit trigger guidance with concrete trigger phrases, so the missing-'Use when' cap at 3 does not apply. Not a 4, because the 'when' is already explicit and specific (three concrete operations on a named page type) and could not meaningfully be more so.

Trigger Term Quality

Good natural-term coverage for this niche: "standard 4:3", "Oh My PPT pages", "creating, relaying out, or repairing", "1600x1200 canvases", "chart/table". A few natural terms a user might say are missing ("slides", "presentation", "aspect ratio"), which matches anchor 4 ('good keyword coverage; a few natural terms missing') rather than the comprehensive synonym/extension coverage of anchor 5.

Distinctiveness Conflict Risk

It carves a clear niche with distinct triggers — "standard 4:3 Oh My PPT pages" and "1600x1200 canvases" — which distinguishes it from sibling layout skills (e.g., widescreen/16:9 variants) and generic presentation skills, matching 'clear niche with distinct triggers; minimal conflict risk'. Anchor 4 would require minor overlap risk with closely related skills, which the explicit 4:3 + Oh My PPT scoping forecloses.