Conciseness

The body is dense and assumes competence — spec tables carry values with no explanation, the beat template is a single table, and there's no tutorial padding about what App Store is. A few tokens could be trimmed: the roleplay opener ('You are an App Store Preview video specialist') and unverifiable conversion statistics ('lift product page conversion by 5–25%', 'lifts conversion 8–15%') add length without executable value. This fits anchor 4 ('efficient; minor instances... that could be trimmed') better than 5, whose bar is that every token earns its place.

Actionability

Guidance is copy-paste actionable throughout: exact spec values ('15–30 seconds', 'H.264, MP4 / MOV', '1080×1920 portrait min'), a timestamped beat-by-beat template with per-platform rules, a fill-in-the-blank script output format, and a rejection-reason-to-fix table. For an instruction-only skill this matches the anchor 5 example's specificity ('specific examples cover the common cases'), with no pseudocode or vague direction.

Workflow Clarity

The sequence is explicit: a numbered Initial Assessment (context file → App ID/platform → recordings → conversion goal → localization scope), then a concrete script/production path, closing with an explicit pre-submission validation checklist and a rejection-reason→fix recovery table. The skill involves no destructive or batch operations, so no cap applies, and the checklist + fix mapping satisfy anchor 5's 'explicit validation steps; feedback loops for error recovery; checklists'.

Progressive Disclosure

No bundle files exist (references/, scripts/, assets/ absent), and the ~135-line body is well-sectioned with clear headers, so navigation is easy. However, self-contained reference material — the full platform spec tables, rejection-reason table, and tiered localization detail — is inlined where a one-level-deep references/ file would keep SKILL.md lean, and cross-skill pointers (e.g. 'see ab-test-store-listing') are plain-text mentions rather than clearly signaled links. Anchor 4 ('good structure; most content appropriately placed; minor organization gaps') fits better than 5, which expects a slim overview pointing to well-signaled external files.

Specificity

The description lists four concrete, distinct actions — 'plan, script, produce, or optimize' — for a precisely named deliverable ('App Store Preview videos or Google Play promo videos — the autoplay videos that show in App Store/Play Store search and product pages'), which is comprehensive coverage of the skill's activities. It clearly matches the anchor 5 ('multiple specific concrete actions; comprehensive coverage') rather than 4, which would require a gap in coverage.

Completeness

It explicitly answers 'what' ('plan, script, produce, or optimize App Store Preview videos or Google Play promo videos') and 'when' ('Use when the user mentions...') with concrete trigger phrases, exactly matching the anchor 5 example. It goes beyond anchor 4 by enumerating specific triggers rather than a generic 'Use when working with...'.

Trigger Term Quality

Eleven quoted natural trigger phrases users would actually say — 'App Preview', 'preview video', 'app store video', 'promo video', 'Play Store video', 'video poster frame', '30 second app video', 'video script', 'video specs', 'should I add a preview video' — covering synonyms, platform variants, and even a question-form trigger. This is comprehensive synonym coverage per the anchor 5; nothing common is missing.

Distinctiveness Conflict Risk

The niche is unambiguous (autoplay store preview videos, not static screenshots or A/B tests), and it actively disambiguates adjacent skills: 'For static screenshots, see screenshot-optimization. For A/B testing the video, see ab-test-store-listing. For broader creative briefs, see screenshot-optimization.' Minimal conflict risk; matches anchor 5.