Conciseness

The body is dense with operational rules and routing with no padding about concepts Claude already knows, but there are minor instances that could be trimmed: the "Reference index" section duplicates the Routing table's file list, and the secrets rule is stated three times ("Do NOT use for" bullet, Operating Rule 3, and Minimum Self-Check). Efficient with minor trim opportunities fits anchor 4 rather than anchor 5's every-token-earns-its-place bar.

Actionability

As an instruction-only routing skill it gives fully actionable guidance: a routing table with exact per-scenario file paths and rationale, exact rules for the tricky cases ("A refund notify counts as success only when its RetCode is 0 and the refund id matches"; "ask for or inspect the actual function name before writing calls"), and a concrete 6-step workflow. Code absence is not penalized per the instruction-only note since executable detail is correctly deferred to the seven reference files, and no scenario lacks a concrete route.

Workflow Clarity

The Quick Workflow is clearly sequenced with explicit validation checkpoints (step 5: "order-status query, callback idempotency, and amount/order validation"; step 6: "Verify through function logs, callback logs, and an end-to-end payment sandbox"), a checklist for complex processes ("Minimum Self-Check"), and an explicit error-recovery path (routing "callback failures, logs" to references/troubleshooting.md). This satisfies the anchor-5 bar of validation steps, feedback routing, and a checklist for a money-handling workflow.

Progressive Disclosure

Structure is strong: the Routing table splits seven scenarios into seven one-level-deep reference files, all verified to exist on disk with no nested references. However, the "Reference index" section claims "All packaged reference files (required for skill lint reachability)" yet omits references/virtual-payment.md, which is present in the bundle and routed in the table — a minor organization inconsistency that fits anchor 4's "minor organization gaps" rather than anchor 5.

Specificity

Enumerates concrete capabilities with API identifiers — "Mini Program WeChat Pay", "Mini Program virtual payment (虚拟支付, wx.requestVirtualPayment)", "Official Account JSAPI Pay", "Native QR-code Pay", "Official Account OAuth", "openid handling", "payment callbacks", "CloudBase Integration Center generated functions" — plus the actions "add, debug, or extend". Coverage spans every major WeChat payment scenario with no evident gap, matching the comprehensive-coverage anchor rather than the minor-gaps anchor.

Completeness

Explicitly answers both questions: what ("CloudBase WeChat integration guide for [eight enumerated capabilities]") and when ("This skill should be used when users ask to add, debug, or extend WeChat payment, virtual payment, or official-account flows on CloudBase"). The when-clause is an explicit use-when with concrete trigger phrases, matching anchor 5; anchor 4's "'when' could be more explicit" does not apply.

Trigger Term Quality

Includes natural terms users would say ("WeChat Pay", "虚拟支付", "wx.requestVirtualPayment", "openid", "payment callbacks", "CloudBase"), but common synonyms and variations — 微信支付, 小程序支付, 公众号支付, and "refund" — appear only in the body, not in the description. Good coverage with a few natural terms missing fits anchor 4 rather than the comprehensive-synonyms anchor 5.

Distinctiveness Conflict Risk

The niche is clear (WeChat payment/official-account flows on CloudBase, reinforced by "Integration Center generated functions"), but the listed capabilities "Official Account OAuth" and "openid handling" overlap the sibling auth skill territory, and the description alone — without the body's "Do NOT use for" boundary — does not scope that out. Mostly distinct with minor overlap risk against a closely related sibling skill fits anchor 4 rather than anchor 5's minimal-conflict bar.