Conciseness

The body is mostly lean and domain-additive (strong/weak hero and CTA patterns, first-person CTA guidance, testimonial quality standards — judgment Claude cannot be assumed to have), but includes rhetorical flourishes that could be trimmed: 'Buttons matter. Treat the button copy as a whole-page-worth of attention,' 'is worth less than nothing... is gold,' and the somewhat boilerplate 'If required data is unavailable' section. This fits 'Efficient; minor instances of over-explanation that could be trimmed' rather than score 5's 'every token earns its place', and it is clearly above score 3 since nothing explains concepts Claude already knows.

Actionability

For an instruction-only skill the guidance is fully executable: a complete copy-paste-ready output template ('## SECTION: Hero - Headline: [text]...'), concrete example copy for every pattern ('Ship features 3x faster, for engineering teams who hate meetings,'; 'Show me how' outperforms 'Show you how'), named failure modes, and specific input sources to mine ('testimonials, support tickets, sales calls'). Not score 4 because the template plus worked examples cover the common cases with no material gaps.

Workflow Clarity

The 9-step workflow is clearly sequenced with explicit validation checkpoints and feedback loops: 'Test 5 to 10 variations,' 'Read the problem section aloud. Does the target audience nod?,' 'Don't polish until the structure is sound,' 'Read the page aloud. By the end, is the visitor's next action obvious?,' and a post-import checklist for handoff. This matches 'Clear sequence with explicit validation steps; feedback loops for error recovery; checklists for complex processes.' Not score 4: checkpoints are present at every phase, and step 9's conditional (run the checklist yourself when revising in place) is explicitly stated.

Progressive Disclosure

Scored against the actual bundle: both referenced paths (references/hero-formulas.md, references/objection-library.md) resolve to real, substantive files, one level deep, clearly listed in a 'Reference files' section with links and one-line descriptions. The SKILL.md keeps the core framework inline and offloads detail (headline formulas, objection library) appropriately. This matches 'Clear overview with well-signaled one-level-deep references; content appropriately split; easy navigation.'

Specificity

The description comprehensively covers the skill's scope: 'Write landing page copy with attention to the hero, value proposition, social proof, objection handling, and conversion-focused CTAs' names the action plus every major component of the deliverable. Coverage of the domain is complete with no significant gaps, matching the anchor 'Lists multiple specific concrete actions; comprehensive coverage'.

Completeness

Both what and when are explicit and concrete: 'Write landing page copy with attention to the hero...' answers what, and 'Use this skill whenever the user wants to write a landing page, sales page, hero section, or any conversion-focused web copy. Triggers on...' answers when with concrete trigger phrases. It even adds a boundary condition for when not to use it.

Trigger Term Quality

'Triggers on landing page, sales page, hero copy, value proposition, headline, subheadline, hero section, CTA copy, conversion copy, opt-in page, squeeze page' provides comprehensive natural-term coverage including synonyms and colloquial variations (opt-in page, squeeze page), plus campaign/launch phrasing. These are exactly the phrases a user would naturally say.

Distinctiveness Conflict Risk

The niche is clear (single-goal conversion pages) and the description actively disambiguates the closest neighbor: 'Use `cro-optimization` instead when the page already exists and the ask is to lift its conversion rate through testing rather than to write the copy.' The trigger terms are page-type-specific; only very minor overlap risk from generic words like 'headline'.