Conciseness

The body is lean and assumes Claude's competence — bullets like "Reduce nesting depth — extract early returns, guard clauses" teach nothing Claude already knows, matching the 4 anchor ("Efficient; minor instances of over-explanation that could be trimmed"). Not 5 because the "STARTER_CHARACTER" / announce line ("When starting, announce: '🧹 Using CODE-SIMPLIFIER skill'") and the standalone "Prioritize clarity over brevity." line are tokens that earn no place; not 3 because there is no real padding or concept explanation.

Actionability

For an instruction-only skill the guidance is concrete and directive — "Consolidate duplicated logic only when the duplication is real (same reason to change), not coincidental" and "A readable 3-line version beats a clever 1-line version" give actionable tests, matching the 4 anchor. Not 5 because there are no before/after code examples illustrating the principles and anti-patterns, which is the instruction-skill equivalent of copy-paste-ready coverage; not 3 because the directives are specific and executable as written, not vague hints.

Workflow Clarity

The four-step Process is clearly sequenced with a verification checkpoint ("Apply changes one at a time — run tests if available to verify behavior preservation"), matching the 4 anchor ("Clear sequence with most checkpoints present; minor validation gaps"). Not 5 because there is no feedback loop for what to do when tests fail or are unavailable, and the "if available" hedge leaves the checkpoint implicit; not 3 because a validation step is explicitly present and the operation is neither destructive nor batch, so the missing-loop cap does not apply.

Progressive Disclosure

The skill is under 50 lines with no need for external references, and the body is organized into well-labeled sections (Scope, Process, Simplification Principles, Over-Simplification Anti-Patterns, What NOT to Change) with no inlined content that belongs in separate files, matching the rubric's simple-skill exception for a 5. All referenced resources (CLAUDE.md) are external project files, and the bundle directories contain no files requiring navigation.

Specificity

"Simplifies and refines code" and "Reduces complexity without changing behavior" name the domain and a couple of actions, but "simplifies", "refines", and "reduces complexity" are variations of one action rather than several distinct concrete operations, matching the 3 anchor ("Names domain and 1-2 concrete actions, but not comprehensive"). It is above 2 because the behavior-preservation constraint is concrete, but below 4 because no distinct techniques or deliverables are enumerated.

Completeness

The "what" is clear ("Simplifies and refines code... Reduces complexity without changing behavior") and the "when" is explicit ("Use when simplifying, cleaning up, or reducing complexity in code"), matching the 4 anchor where both are present but "when" could be more specific. Not 5 because the trigger clause mostly restates the what and lacks concrete varied trigger contexts; not 3 because an explicit "Use when" clause is present.

Trigger Term Quality

"Use when simplifying, cleaning up, or reducing complexity in code" supplies natural phrases users would actually say, matching the 4 anchor ("Good keyword coverage; a few natural terms missing"). Not 5 because common synonyms like "refactor", "tidy up", or "make this cleaner/simpler" are absent; not 3 because the included terms go beyond a single generic keyword.

Distinctiveness Conflict Risk

The description carves a clear niche (behavior-preserving simplification) with triggers like "simplifying" and "cleaning up", matching the 4 anchor ("Mostly distinct; minor overlap risk with closely related skills"). Not 5 because "refines code" is broad and could overlap with general refactoring or code-cleanup skills; not 3 because the scope constraints ("without changing behavior", "in code") keep it reasonably distinct.