Conciseness

The body stays on non-obvious material (voice rules, genre selection, hook types, a worked style sample) and never explains things Claude already knows, which is above the score-3 anchor. But there is trimmable redundancy: trigger examples appear in both 「何时触发」 and 「触发词速查」, the "必须用 mcp__MiniMax__web_search / 禁止 WebSearch" rule is stated twice in the body, and the analogy-domain list repeats across Step 2 and 3.4 — minor over-explanation rather than the lean score-5 fit.

Actionability

Guidance is concrete and executable throughout: exact thresholds ("单句尽量 ≤ 25 字", "最多搜 3-5 个关键词", "最多 3 段"), exact paths (`markdown/`, `markdown/svg/`), a literal reference format ``, a ready Mermaid snippet, a worked style example, and example filenames. For an instruction-only writing skill this matches the score-5 'fully executable, covers common cases' anchor.

Workflow Clarity

Steps 0-5 are clearly sequenced (get source → decide on supplementary search → digest → write → save file → self-check), each with explicit decision criteria (four concrete conditions for opening a search) and gates ("消化不充分，不要动笔", "不要覆盖已有同名文件"). Step 5 is an explicit validate-and-fix feedback loop ("跑完下面这份清单，不通过就改"), matching the score-5 anchor including error recovery.

Progressive Disclosure

Two real, one-level-deep references (`references/digoal-voice.md`, `references/style-blueprints.md`) are listed under 「资源」 with what each contains and when to read it — well signaled. However, the body still inlines substantial style detail that overlaps the delegated material (genre→文体 mapping, hook candidate list, sentence/paragraph rules, the full analogy priority list), so placement is good but not the cleanly split score-5 fit.

Specificity

The description lists multiple concrete actions with specifics: "以 digoal/德哥 的第一人称口吻重写一篇文章", "必要时用 mcp__MiniMax__web_search 拓展资料库", "输出 markdown 到当前项目的 `markdown/` 目录（SVG 图存到 `markdown/svg/`…）", plus concrete constraints (hooks, ≤25-char sentences, ≤3 paragraphs, PG-domain analogies). Coverage of the skill's behavior is comprehensive; it is not below the score-4 anchor, which allows 'minor gaps in coverage'.

Completeness

Both 'what' and 'when' are explicit: the opening sentence states the full pipeline (吃透原文 → 德哥语气重写 → 输出 markdown), and the "适用于：…" clause gives concrete trigger scenarios, matching the score-5 anchor that requires both answers with concrete trigger phrases. The 'when' is explicit, not weakly implied as at score 4.

Trigger Term Quality

The trailing "适用于：" list gives natural user phrasings — "用德哥风格重写一篇公众号文章", "把一份英文 paper/digest/blog 改写成中文公众号体", "用德哥第一人称讲一件行业大事", "让德哥吐槽某个产品或观点" — covering synonyms across the persona-rewrite space (重写/改写/讲/吐槽, 公众号/paper/digest/blog). This matches the score-5 anchor for comprehensive natural-term coverage.

Distinctiveness Conflict Risk

The niche is unambiguous — rewriting source material in digoal's first-person WeChat-column voice — and every trigger phrase names 德哥/digoal explicitly, so it cannot fire for generic writing, translation, or technical Q&A skills. This fits the score-5 'clear niche with distinct triggers' anchor.