Conciseness

Most sections are dense, skimmable bullet lists of domain-specific CRO heuristics (e.g., "3 fields: Baseline / 4-6 fields: 10-25% reduction"), but there is real duplication: "Task-Specific Questions" restates the Initial Assessment items ("What's your current form completion rate?", "What's the mobile vs. desktop split?"), and "Experiment Ideas" largely restates guidance already given (multi-step vs single-step, phone field on/off, button copy, trust badges). This is anchor 3 (mostly efficient but includes some unnecessary content that could be tightened) — below anchor 4 because the duplicated sections go beyond minor trimming, above anchor 2 because nothing is padded prose explaining basics Claude doesn't need.

Actionability

The guidance is concrete and instructional: quantified heuristics ("4-6 fields: 10-25% reduction", "44px minimum height"), good/bad label and error-message examples ("'Please enter a valid email address (e.g., name@company.com)'" vs "'Invalid input'"), specific button copy ("Get My Free Quote"), and a defined Output Format (Issue / Impact / Fix / Priority audit plus recommended design and test hypotheses). This matches anchor 4 (mostly executable guidance with minor gaps) — not anchor 5 because nothing is copy-paste runnable (e.g., no analytics/event-tracking snippets to actually measure the "What to Track" items) and the impact percentages are asserted without sourcing.

Workflow Clarity

A rough sequence is implied (Initial Assessment → apply per-field/layout/type guidance → produce the Output Format deliverable), but it is never stated as an ordered process: the middle 300 lines read as a reference manual, and there are no checkpoints telling Claude when to stop gathering context and start producing the audit. This is anchor 3 (sequence present but implicit; checkpoints missing) — not anchor 4 because the assessment-to-output flow must be inferred from section order, and not capped by the destructive/batch rule since the skill is advisory only.

Progressive Disclosure

The skill has no bundle files at all (no references/, scripts/, or assets/ exist), so everything — including clearly separable material like the ~80-line Experiment Ideas catalog and the form-type-specific guidance — lives inline in a ~420-line SKILL.md. Section headers are well organized and the Related Skills section aids routing, but the under-50-lines exception does not apply. This is anchor 3 (content that should be separate is inline; structure present) — not anchor 2 because organization and headers are strong, and not anchor 4 because substantial reference material is inlined rather than split into one-level-deep files.

Specificity

The description names the domain precisely — "optimize any form that is NOT signup/registration — including lead capture forms, contact forms, demo request forms, application forms, survey forms, or checkout forms" — but the only concrete action stated is "optimize"; there is no list of what the skill actually does (audit fields, recommend layouts, propose A/B tests). This matches anchor 3 (names domain and 1-2 concrete actions, not comprehensive): it is not anchor 2 because the scope is highly detailed rather than minimal/generic, and not anchor 4 because no "several specific actions" are listed.

Completeness

Both halves are explicit: the "what" is "optimize any form that is NOT signup/registration" with an enumerated scope list, and the "when" appears twice with concrete trigger phrases ("When the user wants to optimize any form..." and "Also use when the user mentions 'form optimization,' ..."). This matches anchor 5 (clearly and explicitly answers both what AND when with concrete trigger phrases); it exceeds anchor 4 because the 'when' clause could not be more explicit, and it is not capped at 3 since a 'Use when...' clause is present.

Trigger Term Quality

Trigger coverage is comprehensive and natural: "form optimization," "lead form conversions," "form friction," "form fields," "form completion rate," "contact form," plus six concrete form-type names users would say. This matches the anchor-5 example's breadth (synonyms and variations of the natural phrasing); it is not anchor 4 because no common variation (form types themselves, multiple keyword synonyms) is missing.

Distinctiveness Conflict Risk

The description carves out a clear niche (non-signup forms) and actively disambiguates adjacent skills: "For signup/registration forms, see signup-flow-cro. For popups containing forms, see popup-cro." This matches anchor 5 (clear niche with distinct triggers; minimal conflict risk); it is not anchor 4 because the overlap risk with the nearest neighbors is explicitly resolved, not merely minor.