Conciseness

Every bullet earns its place ('Preserve recognizable voice through motive, knowledge, rhythm, and behavioral choices, not copied phrases'); no padding and no explanation of concepts Claude already knows — the AU/OOC/CP mode definitions are domain knowledge worth stating.

Actionability

Concrete, testable decision rules ('keep the gap open or ask; do not turn a guess into canon'; new characters 'must serve the new line and remain distinguishable from source canon'), but some lines are abstract ('Build a new dramatic line rather than replaying source scenes') and no illustrative examples are given — minor gaps, not missing key details.

Workflow Clarity

A flat, single-purpose constraint list with no destructive or batch operations needing validation; the single action is largely unambiguous, but minor process gaps remain (e.g., what to do when the user does not name a mode, how to verify voice fidelity).

Progressive Disclosure

Six lines total with no references/, scripts/, or assets/ bundle; nothing here warrants splitting into separate files, and the inline bullet list is appropriately organized at this scale, so the simple-skill exception applies.

Specificity

Names the domain ('基于外部正典创作同人作品') and four concrete facets ('管理正典边界、角色声音与允许偏离'), but coverage has gaps — the AU/OOC/CP modes and output forms from the body are absent, so it is not comprehensive.

Completeness

Has a clear 'what' (create fan-fiction, manage canon boundaries, character voice, permitted deviations) but no 'Use when...' clause or equivalent trigger guidance, which caps this dimension at 3.

Trigger Term Quality

'同人作品' is a natural user phrase, but '正典' is jargon and common variants users actually say ('同人文', 'fanfic', 'fan fiction', 'AU', 'OOC', 'CP') are missing.

Distinctiveness Conflict Risk

Fan-fiction based on external canon is a clear niche unlikely to mis-trigger against general writing skills, but the description lacks explicit distinct trigger phrases, so it is mostly rather than fully distinct.