Conciseness

The body is ~35 lines with zero padding: a one-line goal statement ("目标不是翻译，而是让用户掌握这个词的深层含义和用法"), a casing rule, and a compact output spec. It assumes Claude's competence and never explains what a word or Markdown is, matching 'lean and efficient; every token earns its place'.

Actionability

The output structure is concrete and executable: an exact title-line template (`## {Word} /{音标}/ {中文翻译}`), worked micro-examples ("Incubate: 母鸡趴在蛋上", "温暖 + 时间 + 保护 = 孕育"), and a literal quote format. It falls short of 5 because directives like "要有穿透力，展现词源、多领域含义之间的内在联系" and "必须具有哲学高度" are aspirational rather than actionable, and there is no complete worked example of a full output.

Workflow Clarity

This is a simple single-purpose skill (under 50 lines, one task) and the single action is unambiguous: normalize the word ("转换为小写，首字母大写"), then emit a fully-specified three-part output in order. No destructive or batch operations are involved, so no validation checkpoints are required — the simple-skill exception applies and the sequence leaves no gaps.

Progressive Disclosure

The skill is under 50 lines with no need for external references, and no references/ directory exists (verified — references/, scripts/, assets/ are all absent). Per the rubric's guideline, well-organized sections alone qualify: the body is cleanly split into Usage, Instructions, and a numbered 输出结构 with subsections.

Specificity

The description names the domain ("a single English word") and one to two actions ("Deconstructs a single English word into core semantics and epiphany"), but 'core semantics and epiphany' is abstract rather than a list of concrete actions like 'etymology, imagery formula, bilingual aphorism'. It is not the vague 'helps with words' of a 1, nor does it list the several specific actions needed for a 4.

Completeness

Both parts are present: the 'what' ("Deconstructs a single English word into core semantics and epiphany") and an explicit 'Use when' clause ("Use when user asks to explain/master a specific English word"). It falls short of a 5 because the 'when' trigger phrase is generic ('asks to explain/master') and the 'what' leans on the abstract term 'epiphany' rather than concrete deliverables.

Trigger Term Quality

It includes relevant phrases users would say — "explain/master a specific English word" — but misses common variations like 'deeply explain this word', 'what does X really mean', 'etymology of', 'vocabulary', or 'definition'. Coverage exists but synonyms and variations are missing, matching the 'some relevant keywords but missing common variations' anchor.

Distinctiveness Conflict Risk

"Deep-dive English word mastery" and "a specific English word" carve out a clear niche with distinct triggers (single-word deep explanation), unlike generic writing or translation skills. Conflict risk with other skills is minimal; the anchor-5 example has similarly narrow, distinct triggers.