Conciseness

The body is efficient — terse bullet fragments, wireframe templates, and no padding explaining concepts Claude already knows — matching anchor 4 ("Efficient; minor instances of over-explanation that could be trimmed"). A few generic-principle bullets ("Easy to upgrade when ready," "Respect the No — Don't trap or pressure") restate common CRO sense and keep it from anchor 5's "every token earns its place."

Actionability

For an instruction-only skill, the guidance is fully actionable: copy-paste wireframe templates ("Unlock [Feature] to [Benefit]" headline pattern, the three concrete paywall layouts), specific timing rules ("Early warnings (7, 3, 1 day)"), named metrics ("Paywall impression rate, Click-through to upgrade, Completion rate"), and a concrete intake question list. This matches anchor 5 — specific examples cover the common cases (feature lock, usage limit, trial expiration).

Workflow Clarity

A clear assessment-first sequence is present: check `.claude/product-marketing.md` context, understand Upgrade Context / Product Model / User Journey, ask the Task-Specific Questions, then apply templates and metrics — matching anchor 4 ("Clear sequence with most checkpoints present; minor validation gaps"). It is not 5 because there is no explicit post-generation validation step; the Anti-Patterns list is positioned as background rather than framed as a "verify your design against this" checkpoint.

Progressive Disclosure

The SKILL.md is a well-sectioned overview with a single, clearly signaled, one-level-deep reference — "For comprehensive experiment ideas: See [references/experiments.md](references/experiments.md)" — and that file exists with content matching the link. Everything else is appropriately inline at this skill size, matching anchor 5 (clear overview, well-signaled one-level references, easy navigation).

Specificity

"create or optimize in-app paywalls, upgrade screens, upsell modals, or feature gates" names a specific domain with 1-2 concrete actions (create/optimize), fitting anchor 4, but the second-person phrase "any in-product moment where you're asking users to upgrade" incurs the rubric's mandatory -1 specificity penalty, landing on anchor 3. It is not a 2 because the domain objects are numerous and concrete, and not an unpenalized 4 because the action verbs remain limited and the voice violation is explicit.

Completeness

It explicitly answers "what" ("create or optimize in-app paywalls, upgrade screens, upsell modals, or feature gates") and "when" ("Also use when the user mentions..." with a long list of concrete trigger phrases), mirroring the anchor-5 exemplar structure. It is not a 4 because the when-clause is already maximally explicit rather than merely present.

Trigger Term Quality

The description covers natural user phrasing comprehensively, including synonyms and colloquial variants: "paywall," "upsell," "feature gate," "convert free to paid," "freemium conversion," "trial expiration screen," "limit reached screen," "free users won't upgrade," and "how do I get users to pay." This matches the anchor-5 example (PDF files, PDFs, forms, document extraction) in breadth and naturalness; no common variation is missing.

Distinctiveness Conflict Risk

It carves out a clear niche with explicit boundaries against sibling skills: "Distinct from public pricing pages (see cro) — this focuses on in-product upgrade moments where the user has already experienced value. For pricing decisions, see pricing." Conflict risk with adjacent pricing/CRO skills is explicitly managed, matching anchor 5; no residual overlap is left unaddressed.