Conciseness

The body is template- and table-driven with zero concept explanation — lines like "Build hierarchy top-down. Each level unpacks level above." and the surface-map table carry maximum instruction per token. Every section (formats, examples, filters, delivery) earns its place, matching the lean top anchor rather than the minor-trim level 4.

Actionability

Concrete, copy-paste-ready templates with worked examples ("[Outcome] for [who]" → "Faster decisions for product teams", the three-example proof-point block, the CTA alternatives) make this mostly-to-fully executable for an instruction-only skill. It falls short of 5 because Step 6 says "Follow the output format defined in docs/output-kit.md", but no such file exists in the bundle (no references/ or docs/ directory is present), leaving the final output format unresolvable as shipped.

Workflow Clarity

Six clearly sequenced steps with prerequisite confirmation in Step 1 (including the fallback "If missing, run pitch-recon") and an explicit validation checklist in Step 5 with a fix directive ("does a competitor say something identical? If so, sharpen"). Not 5: validation is end-of-pipeline only — Step 2's "Write 3 options, select strongest" lacks selection criteria until Step 5, and there are no per-level checkpoints or explicit re-validation after edits.

Progressive Disclosure

The single-file body is well-sectioned, but it points to "docs/output-kit.md" (Step 6) and invokes "/atlas-report" without either existing in the bundle — the referenced path cannot be verified as a real file, leaving navigation partially broken. This sits between anchor 3 (references present but problematic) and anchor 4 (references mostly clear); the dangling output-format reference keeps it at 3 rather than 4, but the organized single-file structure keeps it above 2.

Specificity

"produce a full headline, subheadline, proof points, and CTA hierarchy for use across all surfaces" enumerates multiple concrete, comprehensive deliverables with no vague filler — matching the anchor that lists several specific actions with full coverage. It is not level 4 because coverage of the skill's outputs (all four message-hierarchy levels plus surfaces) is complete rather than having minor gaps.

Completeness

Both questions are explicitly answered: what ("produce a full headline, subheadline, proof points, and CTA hierarchy") and when ("Use when asked to..." with concrete trigger phrases). This matches the top anchor exactly; the 'when' is explicit, not weakly implied as at level 4.

Trigger Term Quality

The "Use when asked to" clause quotes natural user phrasings — "write our messaging", "what should our headline say", "copy hierarchy", "tagline and messaging", "how do we talk about the product" — covering synonyms and variations a user would actually say. Not level 4: no common natural phrasing for requesting a messaging framework is obviously missing.

Distinctiveness Conflict Risk

The niche (product-marketing message hierarchy) is clear and the triggers ("what should our headline say", "tagline and messaging") are distinct from adjacent skills like positioning or general copywriting. Not level 4: the quoted triggers are specific enough that overlap risk with closely related skills is minimal.