Conciseness

The body is dense rather than padded, but several sections restate knowledge Claude already has — textbook Incoterms definitions ('EXW: Seller's minimum obligation. Buyer arranges everything'), the GRI walkthrough with standard examples ('A car body without the engine is still classified as a motor vehicle'), and 'The Harmonized System is a 6-digit international nomenclature maintained by the WCO.' Not 2: nearly every restatement is compressed and carries a compliance-specific caveat; not 4: the Incoterms and GRI sections could be trimmed to only the non-obvious compliance implications.

Actionability

Concrete, executable guidance throughout: numbered decision frameworks ('Matches below 85% name similarity with no address or country correlation are likely false positives — document and clear'), penalty formulas, an escalation table with timelines, and message templates. Not 5: the templates are explicitly brief sketches to adapt rather than copy-paste ready, and there is no executable code or commands.

Workflow Clarity

The multi-step processes ('Classification Decision Logic', 'FTA Qualification Analysis', 'Valuation Method Selection', 'Screening Hit Assessment') are clearly sequenced with checkpoints such as 'Validate at the subheading level' and 'Check for binding rulings.' Not 5: there are no explicit validate-then-retry feedback loops for error recovery, though this is an advisory skill rather than a destructive/batch one.

Progressive Disclosure

No bundle files exist and the skill is a ~240-line monolith that inlines reference-grade material — regional specialties, eight edge cases, penalty frameworks, templates — that belongs in separate one-level-deep reference files. Not 2: sections are well-organized with clear headers and the body explicitly frames itself as summaries to expand; not 4: nothing is split out of SKILL.md, and 'Additional Resources' points to internal artifacts rather than actual bundle files.

Specificity

The description enumerates multiple specific concrete capabilities — 'HS/HTS tariff classification with GRI rules', 'commercial invoices and entry documentation', 'FTA qualification and duty optimization (USMCA, RCEP, FTZs, drawback)', 'denied-party screening', 'penalty mitigation' — with no real coverage gaps, matching the comprehensive anchor.

Completeness

It clearly answers both 'what' (the enumerated capability domains) and 'when' (an explicit 'Use when...' clause with concrete trigger phrases), matching the top anchor exactly.

Trigger Term Quality

'Use when classifying goods, preparing import/export documentation, screening restricted parties, responding to customs audits or CF-28/penalty notices, or optimizing duties' provides good natural keyword coverage, but a few common user phrasings (e.g., 'customs broker', 'tariff codes', 'imports/exports') are missing.

Distinctiveness Conflict Risk

A clear niche with distinct triggers — 'CF-28/penalty notices', 'USMCA, RCEP, FTZs, drawback', 'denied-party screening' — that would rarely fire for the wrong skill.