Conciseness

The body is dense and almost entirely skill-specific judgment calls (AI-taste smells, author-voice protection, scope rules) with no explanations of concepts Claude already knows. It scores 4 rather than 5 because the Pre-flight language-loading rules duplicate Mode Picker rows, and long Hard Rules passages such as "Material gate before drafting long-form" could be tightened; it is well above the 3 anchor since the padding is minor.

Actionability

Guidance is fully executable for an instruction-only skill: a complete, runnable punctuation-gate bash block with a path-resolution loop, a mode table mapping each ask to an exact file, and concrete procedures like "return a per-sentence list of every deleted or rewritten sentence" and "trace that passage's diffs to the nearest version before the unwanted edit". This matches the 5 anchor (copy-paste ready commands with specific coverage of common cases).

Workflow Clarity

A numbered Pre-flight, an explicit validation checkpoint ("Before returning any produced text... resolve the checker across install layouts and run it"), batch reconciliation in Output, and a re-review feedback loop in Gotchas give clear sequencing with real checkpoints. It holds at 4 rather than 5 because the end-to-end flow must be assembled across sections (Core Stance, Pre-flight, Mode Picker, Hard Rules, Gate, Output) rather than presented as one consolidated sequence.

Progressive Disclosure

Every path referenced in the body (11 reference files and scripts/check-punctuation.sh) exists in the bundle, references are exactly one level deep with no nested chains (external URLs only), and routing is well signaled via the language-detection rules and the Mode Picker table. The 55KB Chinese catalog is correctly externalized, matching the 5 anchor for a clear overview with well-signaled one-level-deep references.

Specificity

"Rewrites and polishes Chinese or English prose, technical instructions, and product copy" combined with "drafting, editing, localizing, or cutting AI tone" lists multiple concrete actions with comprehensive coverage of the prose-editing domain. It sits at the 5 anchor rather than 4 because no meaningful capability in its stated scope is left uncovered.

Completeness

It explicitly answers both questions: the "what" ("Rewrites and polishes Chinese or English prose, technical instructions, and product copy") and the "when" ("Use when drafting, editing, localizing, or cutting AI tone"), plus a negative boundary ("Not for code comments or commit messages"). This clearly matches the 5 anchor with concrete trigger phrases; the 4 anchor applies only when the when-clause is weaker or less explicit.

Trigger Term Quality

The "Use when drafting, editing, localizing, or cutting AI tone" clause supplies natural verb triggers, but noun-level phrases users actually say (proofread, rewrite my post, release notes, tweet) are absent from the description itself and only appear in the separate when_to_use field. This matches the 4 anchor ("good keyword coverage; a few natural terms missing"), not 5, since the description alone lacks common synonyms.

Distinctiveness Conflict Risk

The bilingual prose plus AI-tone-removal niche is distinctive and "Not for code comments or commit messages" explicitly disambiguates the nearest neighboring skill. It stays at 4 rather than 5 because "drafting, editing" are broad triggers that could still fire on general writing requests overlapping other writing or documentation skills.