Conciseness

Efficient for its scope: no explaining of concepts Claude already knows, and every section instructs rather than narrates ('Record every controller class + file + REST base + routes in a Controller Inventory table'). Minor instances of over-explanation could be trimmed — the opening paragraph re-states the description, and the sanity-check paragraph in step 4 belabors the plumbing-vs-ability distinction ('The route may be useful to inventory; the proposed ability must represent a real user/operator question or action'). Fits anchor 4, not 5 (some sentences are redundant) and not 3 (the padding is minor, not whole unnecessary explanations).

Actionability

Instruction-only skill with concrete, specific guidance: exact field lists ('name, intent, backing, permission, return_type, effort (S/M/L)...'), an exact output format ('Last updated: YYYY-MM-DD HH:MM' header, YAML block, Controller Inventory table, 'Notes and Surprises' section), and explicit handling rules for edge cases (compound gates as '{read, write}', null line numbers paired with inherited_from). Per the scoring note, absent code is not penalized since the guidance is actionable; it stays at 4 rather than 5 because the executable mechanics and the copy-paste example all live in reference files rather than inline, and two referenced rule files are external to this bundle.

Workflow Clarity

A clearly sequenced 7-step procedure with inputs, prerequisites, an explicit 'Verification' checklist (schema conformance, gate typing, surfaced-gaps consistency, validator round-trip), a 'Failure modes / debugging' section for error recovery, and an 'Escalation' path. This matches the anchor with explicit validation steps and feedback loops; the audit is read-only output generation, so the destructive/batch cap does not apply. Not 4 — checkpoints are explicit and complete, not 'mostly present'.

Progressive Disclosure

Good structure: the body is a lean overview, and all three local references (controller-enumeration.md, audit-schema.md, capability-gate-tracing.md) exist in the bundle and are clearly signaled with 'Read X now' at the exact step that needs them, one level deep. It falls short of 5 because two references point outside the bundle into a sibling skill ('../wp-abilities-api/references/grouping-heuristic.md', '../wp-abilities-api/references/domain-vs-projection.md') that is not present here — a minor organization gap that breaks navigation if that skill isn't installed.

Specificity

Names several concrete actions — 'Audit a WordPress plugin's REST surface', 'produce a standardized audit document proposing Abilities API registrations', 'Produces a markdown doc with a YAML schema and prose sections' — with minor gaps (it never says what the audit actually inspects, e.g. controllers or capability gates). Matches the 'lists several specific actions; minor gaps in coverage' anchor, not 5 (coverage of the audit's internals is missing) and not 3 (more than 1-2 concrete actions are given).

Completeness

The 'what' is clear and specific, but there is no 'Use when...' clause or equivalent explicit trigger guidance — 'when planning a registration rollout' describes the artifact's consumers, not when to invoke the skill. Per the judging guideline, a missing explicit trigger clause caps completeness at 3 ('clear what but when is missing or only weakly implied'); it is above 2 because the 'what' is fully explicit.

Trigger Term Quality

Good natural keyword coverage: 'WordPress plugin', 'WP plugin', 'REST surface', 'Abilities API', 'audit document', 'registration rollout' — the terms a user planning abilities adoption would say. A few natural variants are missing ('REST endpoints', 'capabilities/permissions', 'agent-readiness'), so it fits the 'good keyword coverage; a few natural terms missing' anchor rather than the comprehensive-synonyms anchor at 5, and is well above the generic-keyword anchors at 2-3.

Distinctiveness Conflict Risk

Occupies a clear niche — auditing a WordPress plugin's REST surface to propose Abilities API registrations — with distinct trigger terms that no generic skill would match. Minimal conflict risk; fits the 'clear niche with distinct triggers' anchor, clearly above the 'minor overlap risk with closely related skills' anchor at 4.