Conciseness

The workflow structure, templates, and formula are efficient, but the attack tables' 'Expected Failure' column and the 7-row Anti-Rationalization table explain concepts Claude already knows (e.g. '0.1 + 0.2 !== 0.3', TypeScript's compile-time limits, 'rare cases cause production incidents'). Not 2 because the bulk is actionable structure rather than padded prose; not 4 because there are more than minor instances of over-explanation (~80 lines of known-concept elaboration).

Actionability

Highly concrete throughout: an executable grep command, exact attack payloads ('a'.repeat(1_000_000)', '{"__proto__": {"admin": true}}'), a mechanical resilience formula, and fill-in output templates. Not 5 because of minor gaps: the Step 1 bash block uses an undefined $TARGET while the Target line uses $ARGUMENTS, and the type-assertion grep is TypeScript-only in a language-agnostic skill.

Workflow Clarity

Five clearly sequenced steps with an explicit gate ('BLOCKED until target is fully understood'), a proof requirement ('Only report vulnerabilities you can prove'), and a 7-item Verification Protocol checklist — explicit validation steps plus a checklist for a complex process. The skill is read-only (Rule 4), so the destructive/batch validation cap does not apply.

Progressive Disclosure

No bundle files exist; the single-file body is well organized with clear section headers, and the attack tables used on every invocation are appropriately inline. Not 5 because peripheral content (the Anti-Rationalization table) and the ~270-line length could be split or trimmed; not 3 because structure and navigation are good, with nothing buried.

Specificity

Names the domain and several concrete capabilities ('stress-test code', 'finding edge cases, security holes, race conditions, and logical flaws') — base 4 — but 'Use when you want to...' is second person, triggering the mandated -1 voice penalty. Not 2 because the actions are specific and enumerated, not generic like 'Processes PDF files'.

Completeness

Both what ('finding edge cases, security holes, race conditions, and logical flaws that normal reviews miss') and an explicit when ('Use when you want to stress-test code') are present. Not 5 because the 'when' clause merely restates the capability rather than offering varied concrete trigger phrases; not 3 because the 'Use when' trigger is explicit, not merely implied.

Trigger Term Quality

Good natural keyword coverage: 'stress-test', 'try to break it', 'edge cases', 'race conditions', 'adversarial reviewer'. Not 5 because common synonyms users would say are missing ('vulnerability', 'security audit', 'pen-test', 'find bugs'); not 3 because coverage goes well beyond a couple of generic keywords.

Distinctiveness Conflict Risk

'adversarial reviewer', 'stress-test', and 'that normal reviews miss' carve a clear niche explicitly differentiated from ordinary review skills. Not 5 because generic terms ('code', 'reviews') create minor overlap risk with a general code-review skill; not 3 because the adversarial framing is strongly distinctive.