Conciseness

The body is dense and purposeful — it never explains concepts Claude already knows (no 'what a book is' padding) and every section addresses the fragile x→f→f(x) judgment. The apparent overlap between Gotchas and the Completion checklist is deliberate (failure-mode prevention vs. acceptance verification), not verbosity.

Actionability

Concrete, copy-paste-ready specifics for an instruction-only skill: file name `{YYYYMMDDTHHMMSS}--拆书-{书名}__book.org`, timestamp command `date +%Y%m%dT%H%M%S`, save path `~/Documents/notes/`, `#+begin_example` blocks ≤80 chars, 900–1600汉字 target, and an enumerated fixed top-level section structure. Per the rubric, absence of code is not penalized when guidance is this actionable.

Workflow Clarity

Clear sequence: routing table (input → required reading → output) → completion target → understanding-resistance scan → 6-step Quick Reference → explicit read-back verification (生成后读回确认 with 12 acceptance checks). The completion checklist functions as a validation/feedback checkpoint, and note-writing is non-destructive so no destructive-op cap applies.

Progressive Disclosure

SKILL.md is a well-organized overview and `references/template.org` is correctly signaled and one level deep — but the routing table repeatedly marks `ReadingGuide.md` as required reading ('查到可靠材料后读 `ReadingGuide.md`'), and that file is absent from the bundle (only `template.org` exists). A referenced path that does not exist is a broken navigation pointer, which keeps this below a 3.

Specificity

Lists multiple concrete actions: 'reconstructs a book as x -> f -> f(x): the problem it addresses, the author's central answer, and how that answer changes judgment or action' plus a concrete default output ('Defaults to a saved org note'). These are specific, defined sub-actions rather than vague domain hand-waving. Voice is third person ('reconstructs', 'addresses'), so no voice penalty applies.

Completeness

Explicitly answers both what ('reconstructs a book as x -> f -> f(x)...') and when with an explicit 'USE WHEN the user gives a book title, PDF, excerpt...' trigger clause, matching the score-3 anchor that requires both an explicit what and an explicit when.

Trigger Term Quality

The USE WHEN clause covers natural terms a user would actually say — 'book title, PDF, excerpt' plus colloquial Chinese triggers '拆书, 分析这本书, 这本书在讲什么, 压缩一本书, or book' — giving good coverage across both English and Chinese phrasings.

Distinctiveness Conflict Risk

A clear, narrow niche (book reconstruction into x→f→f(x) saved as an org note) with distinct triggers, sharpened by an explicit exclusion list ('NOT FOR chapter summaries, framework audits, papers, single-idea deep dives, or field ranking') that makes conflict with adjacent skills unlikely.