Conciseness

The body is dense and earns most of its tokens with specific numbers (70/30 testing split, 20-30% budget increases, retargeting windows, frequency caps), but several sections could be tightened: the platform table appears twice (Platform Selection Guide and Tool Integrations), 'Common Mistakes' largely restates 'Optimization Levers,' and the PAS/BAB copy frameworks are knowledge Claude already has. This fits anchor 3 ('some unnecessary explanation or could be tightened') better than anchor 4's 'minor instances' of over-explanation.

Actionability

Concrete, executable instruction-only guidance throughout: copy-paste naming templates with worked examples, symptom-keyed decision trees ('If CPA is too high: 1. Check landing page... 5. Adjust bid strategy'), a timed video structure, a bid progression gated on '50+ conversions,' and pre-launch checklists. Matches anchor 5 for an instruction-only skill with specific examples covering common cases.

Workflow Clarity

A clear end-to-end sequence (context gathering, platform selection, structure, creative, pre-launch checklist, optimization, weekly reporting) with the Universal Pre-Launch Checklist and Weekly Review acting as validation checkpoints, and optimization sections serving as diagnostic feedback loops. Falls short of anchor 5 because there are no explicit error-recovery loops (e.g., what to do when a validated checklist item fails) beyond lever lists; this is not a destructive/batch skill, so no cap applies.

Progressive Disclosure

The body keeps overviews inline and clearly signals one-level-deep references at natural exit points ('For detailed templates and headline formulas: See references/ad-copy-templates.md'), and all three referenced files exist in the bundle. Matches anchor 5 (clear overview, well-signaled one-level-deep references, easy navigation).

Specificity

"This skill covers campaign strategy, ad creation, audience targeting, and optimization" lists several capability areas plus named platforms, matching anchor 4 (several specific actions, minor gaps); it falls short of anchor 5 because these are domain areas rather than fully concrete action verbs, and clearly above anchor 3 (only 1-2 actions). Voice is third person throughout, so no person penalty applies.

Completeness

Explicitly answers both 'what' ("This skill covers campaign strategy, ad creation, audience targeting, and optimization") and 'when' ("When the user wants help with paid advertising campaigns... Also use when the user mentions 'PPC'...") with concrete trigger phrases, matching the anchor-5 example structure exactly.

Trigger Term Quality

Comprehensive natural trigger coverage with synonyms: 'PPC,' 'paid media,' 'ad copy,' 'ad creative,' 'ROAS,' 'CPA,' 'ad campaign,' 'retargeting,' 'audience targeting,' plus platform names including variants (Meta/Facebook/Instagram, Twitter/X). Matches the anchor-5 example's synonym-level coverage; anchor 4 ('a few natural terms missing') is too weak a fit.

Distinctiveness Conflict Risk

A clear niche (paid advertising on named platforms) with distinct jargon triggers (ROAS, CPA, retargeting) that are unlikely to fire for unrelated skills; matches anchor 5 (clear niche, minimal conflict risk) rather than anchor 4's minor overlap.