Conciseness

Much of the body is genuinely non-obvious regulatory specifics (penalty multipliers under 19 USC § 1592, ISF deadlines, RVC formulas, screening thresholds) that earn their tokens, but several sections re-explain textbook concepts Claude already knows — "The Harmonized System is a 6-digit international nomenclature maintained by the WCO", "Incoterms define the transfer of costs, risk, and responsibility", and what an ocean BOL is — which could be tightened. This sits at the mostly-efficient-with-some-unnecessary-explanation anchor, not 2, because the padding is interleaved with high-value specifics rather than dominating.

Actionability

As an instruction-only skill it delivers concrete, executable guidance: exact formulas ("RVC = ((TV - VNM) / TV) × 100"), decision thresholds ("Matches below 85% name similarity with no address or country correlation are likely false positives — document and clear"), statute citations, deadline tables, and template subject-line formats. Not 5 because the "Key Templates" are sketches ("Brief templates appear below. Adapt them...") rather than complete worked outputs, and the Examples section summarizes scenarios instead of showing full deliverables.

Workflow Clarity

Multi-step processes are clearly sequenced — the 6-step "How It Works" overview plus four detailed numbered frameworks (classification, FTA qualification, valuation, screening) — with most checkpoints present ("Validate at the subheading level", "Verify all cost data with the supplier", "Document everything"). Not 5 because checkpoints are verification-of-analysis rather than explicit validate→fix→retry feedback loops, and the Valuation Method framework is a bare hierarchy with no checkpoint at all.

Progressive Disclosure

No bundle files exist and the entire ~240-line body is a single monolithic file where clearly separable material — Regional Specialties, Key Edge Cases, Communication Patterns, Escalation Protocols — is inlined. It scores 3 rather than 2 only because the section structure itself is well-organized with clear ## and ### headers, making navigation within the wall of text reasonable; the under-50-lines exception for a 5 plainly does not apply.

Specificity

Lists many concrete capability areas — "customs documentation, tariff classification, duty optimization, restricted party screening", "HS classification logic, Incoterms application, FTA utilization, and penalty mitigation" — matching the several-specific-actions anchor. It falls short of 5 because the framing "Codified expertise for..." is not action-driven, "regulatory compliance" is generic, and "Informed by trade compliance specialists with 15+ years experience" is provenance filler rather than capability.

Completeness

Explicitly answers both questions: the "what" enumerates concrete capabilities (documentation, classification, duty optimization, screening, Incoterms, FTA, penalty mitigation) and the "when" is an explicit "Use when handling..." clause with five concrete trigger contexts. This matches the 5 anchor exactly; a 4 would require the 'when' to be less explicit or specific, which is not the case here.

Trigger Term Quality

The "Use when handling customs clearance, tariff classification, trade compliance, import/export documentation, or duty optimization" clause uses natural phrases a user would actually say, and "import/export" covers both directions. Not 5 because common variations are missing: users would say "HS code", "HTS", "harmonized system", or "sanctions screening", none of which appear as triggers.

Distinctiveness Conflict Risk

A clear niche — customs/trade compliance — with distinct triggers ("customs clearance", "tariff classification", "duty optimization") that would not fire for general legal, logistics, or documentation skills. Minimal overlap risk, matching the clear-niche anchor.