Conciseness

The body is dense and imperative with no explanations of concepts Claude already knows — every section carries skill-specific judgment (e.g. "Source-only → FAIL (registration not firing). Runtime-only → WARN"). It is not 5 because a few asides are slightly redundant — the idempotent definition and the "signal, not a verdict" caveat each appear in both the modes section and step 4 — and not 3 because almost every token is non-inferable guidance.

Actionability

Fully actionable for an instruction-only skill: exact tool invocation ("rg --multiline --pcre2"), concrete search pattern ("wp_register_ability("), per-annotation check rules, a literal suppression syntax ("// verify-ignore: <annotation> -- <reason>"), and a copy-paste report template. The scoring note's exception applies — absence of code is not penalized when the guidance is this concrete.

Workflow Clarity

A seven-step numbered procedure, each step pointing at its reference file, with explicit validation semantics ("A single FAIL → top-line FAIL; WARNs without FAILs → WARN; otherwise PASS"), a failure-modes section with concrete recovery actions ("Re-run wp-project-triage, then fix the env. Don't fall back silently"), and escalation guidance. This matches the anchor-5 shape: clear sequence, explicit checkpoints, feedback loops.

Progressive Disclosure

The body is a lean overview and every step clearly signals its one-level-deep reference ("Read references/annotation-correctness.md", etc.); all six referenced files exist in the bundle, and bulk detail is appropriately split out of SKILL.md. The cross-skill pointers (../wp-abilities-api/references/...) are also one level deep, so navigation is easy throughout.

Specificity

The description lists multiple concrete actions — "enumerate abilities", "check that callback behavior matches each annotation's claim (the adversarial readonly-but-writes detection)", "validate permissions and schemas", "validate audit documents" — giving comprehensive coverage of the skill's capabilities. It exceeds anchor 4 because the action list is complete rather than having minor gaps.

Completeness

The "what" is explicit and precise, but there is no "Use when..." clause or any equivalent trigger guidance — "when" is at best weakly implied from the what, which caps completeness at 3 per the judging guidelines. It is not 4 because the when is entirely absent rather than merely imprecise.

Trigger Term Quality

Good natural keyword coverage: "WordPress plugin", "Abilities API", "abilities", "permissions", "schemas", "audit" are all phrases a user needing this skill would say. It falls short of anchor 5 because common variations like "annotations", "callbacks", or "registrations" as standalone triggers are absent, and it is clearly above anchor 3 since the core natural terms are all present.

Distinctiveness Conflict Risk

It occupies a clear niche — verifying a WordPress plugin's Abilities API registrations — and even names its sibling skill "wp-abilities-audit" to scope the audit-validation half, minimizing conflict risk. No neighboring anchor fits better.