Conciseness

Every line encodes a non-obvious decision rule (diff ownership, base-branch defaults, checkout blockers, retry limits, output columns) with zero explanation of concepts Claude already knows and no filler. This matches anchor 5 (lean, assumes Claude's competence, every token earns its place) rather than anchor 4, which requires identifiable instances of over-explanation to trim — none are present.

Actionability

The skill provides the exact subagent launch parameters ("subagent_type: \"security-review\"", "run_in_background: false"), a copy-paste prompt template with per-line inclusion rules, exact output columns ("Severity, Location (file:line), Finding"), and a worked status-line example. Anchor 5 (fully executable, covers common cases) fits; the only placeholders are inherently variable fields whose fill rules are spelled out.

Workflow Clarity

The sequence is unambiguous and includes explicit error-recovery feedback loops: "inspect the failure text" → correct the invocation → "retry it once immediately" → "stop" and report; and the checkout-blocker path (explain blocker → ask → "Only stash after the user confirms" → retry switch). Not a 4 because no validation checkpoint is missing — the failure, checkout, and empty-diff cases all have explicit handling, and the simple-skill exception applies.

Progressive Disclosure

The skill is under 50 lines with no bundle files (references/, scripts/, assets/ are absent) and no need for external references, and the body is organized into clearly delineated sections (launch config, repository path rules, base branch rules, PR special case, prompt shape, failure handling, result summary). Per the rubric guideline, this simple-skill case scores 5 on well-organized sections alone.

Specificity

"Review code changes with Security Review subagent" names the domain (code changes, security) and exactly one concrete action (review), matching the anchor for 1-2 concrete actions without comprehensive coverage. It is not a 4 because it lists no additional specific actions (e.g., producing severity-sorted findings, handling PRs), and not a 2 because "review code changes" is a concrete action rather than a generic domain label.

Completeness

It clearly answers "what" (review code changes with the Security Review subagent) but contains no "Use when..." clause or any trigger guidance; the judging guidelines explicitly cap completeness at 3 for a missing 'when'. It is above anchor 2 because the 'what' is concrete, not vague.

Trigger Term Quality

The description contains the natural core terms "review", "code changes", and "Security Review", but misses common variations and synonyms users would say such as "vulnerabilities", "security audit", "threats", or "PR". This matches anchor 3 (some relevant keywords, missing variations) rather than anchor 4, which expects noticeably fuller keyword coverage.

Distinctiveness Conflict Risk

"Security Review subagent" gives it a security niche, but "Review code changes" overlaps considerably with generic code-review skills that share the same trigger space. This matches anchor 3 (somewhat specific, could still overlap with similar skills) rather than anchor 4, since the overlap risk with closely related review skills is more than minor.