Conciseness

The body never explains concepts Claude already knows and the Anti-Rationalization table is dense with non-obvious facts (cert lifetimes, server-only merchant validation, Section 3.1.1 citations), but the same routing map is repeated in five forms — the Quick Reference table, the dot Decision Tree, 'Simplified routing', Cross-Suite Routing, and Example Invocations — so several sections could be consolidated into one canonical routing map. This fits anchor 3 (mostly efficient but some unnecessary content that could be tightened) better than anchor 4, where over-explanation is only minor.

Actionability

As an instruction-only routing skill it gives concrete direction: exact subfile paths per scenario, the exact entitlement string 'com.apple.developer.proximity-reader.payment.acceptance', specific domain-verification filenames, and specific facts like 'Payment Processing Certificates expire after 25 months'. It is not fully anchor 5 because there is no inline copy-paste guidance and most executable substance is deferred to the subfiles rather than demonstrated here.

Workflow Clarity

The 'Simplified routing' numbered list gives an unambiguous, priority-ordered decision sequence and no destructive or batch operations exist that would require validation checkpoints, but the routing truth is spread across five parallel presentations instead of one canonical sequence, leaving minor navigational gaps that keep it below anchor 5.

Progressive Disclosure

The SKILL.md is structured exactly as a progressive-disclosure index should be — a symptom/task table mapping each concern to a single one-level-deep `skills/*.md` reference, clearly signaled — but the bundle contains no `skills/`, `references/`, `scripts/`, or `assets/` directories, so every referenced path points to a file that is not present in the bundle, a real organization gap versus anchor 5's 'easy navigation' to well-placed content.

Specificity

The description lists several concrete, specific coverage items — 'Apple Pay, Wallet passes, Tap to Pay, Orders in Wallet' and 'entitlements, certs, signing, App Review payment rules' — but only one action verb ('accepting... payment'), so it reads as topic enumeration rather than the multiple concrete actions of the anchor 5 example.

Completeness

Both halves are explicit: 'Use when accepting ANY real-world payment — Apple Pay, Wallet passes, Tap to Pay, Orders in Wallet' is a concrete trigger clause, and 'Covers entitlements, certs, signing, App Review payment rules' states what the skill does, with the 'NOT in-app purchase / digital content' exclusion sharpening the 'when'. This matches anchor 5 (clearly and explicitly answers both what AND when with concrete trigger phrases), not anchor 4 where the 'when' is less explicit.

Trigger Term Quality

'Apple Pay', 'Wallet passes', 'Tap to Pay', 'in-app purchase', and 'real-world payment' are exactly the phrases users would naturally say, but common variations like 'contactless', 'loyalty card', 'boarding pass', 'event ticket', or '.pkpass' are absent, matching anchor 4 (good coverage, a few natural terms missing) rather than the synonym-complete anchor 5.

Distinctiveness Conflict Risk

The description carves out a clear niche (real-world payments) and explicitly disambiguates against the nearest neighbor — 'NOT in-app purchase / digital content (use axiom-integration)' — so the risk of triggering for the wrong payment skill is minimal, matching anchor 5.