Conciseness

The body is mostly efficient — the Naval quotes and cases are source-specific knowledge Claude cannot reproduce, so quoting them earns their tokens. But there is clear duplication and meta-cruft: the 'scientists and statisticians' passage appears verbatim in both the I section and the B section, adjacent-skill distinctions are repeated three times (A2, B, and '相关 skills'), and the audit footer ('验证通过: V1 ✓ / V2 ✓ / V3 ✓ (v14)', '蒸馏时间: 2026-08-01') adds nothing executable. This fits 'mostly efficient but includes some unnecessary explanation or could be tightened' and is far from the padding of anchor 2.

Actionability

The E section gives concrete, measurable behavioral guidance: '记录 3 天，标出最痛的 1 个消费型 app/时段', '把该 app 移出首屏/卸载/设限额，物理隔离', '告诉 3 个朋友', with a quantified stop condition ('若 7 天后复发 ≥3 次，缩小目标'). Per the code-vs-instruction scoring note, the absence of code is fine. It stops short of fully executable because of minor gaps — e.g., the labeled '习惯替换五步' actually enumerates about seven arrow-separated items, an internal inconsistency a reader must resolve, and no method is given for measuring outcome beyond self-report.

Workflow Clarity

The four E steps are clearly sequenced, each with an explicit completion criterion ('完成标准') acting as a checkpoint, and step 4 includes a feedback loop ('判停条件: 若 7 天后复发 ≥3 次，缩小目标……不责备自己') for error recovery — approaching the anchor-5 pattern. It stays at 4 because validation is entirely self-reported with no review cadence or overall success criterion tying the steps together, and the relapse condition covers only step 4.

Progressive Disclosure

With no bundle files at all, everything lives in one ~107-line SKILL.md organized under clear, consistently formatted sections (R/I/A1/A2/E/B) — good structure for its size, matching 'good structure; most content is appropriately placed; minor organization gaps'. It does not reach 5: the over-50-line file inlines content (the audit block, related-skills cross-references) that could be split or trimmed, and '见 test-results.md' points to a file that does not exist in the bundle — a minor but real navigation gap.

Specificity

The description names the domain clearly ('刷手机/短视频/社交媒体上瘾' screen addiction) and one concrete method ('用习惯替换五步戒断' — habit-replacement five-step detox), but beyond that single action it is mostly philosophical framing ('屏幕=用长期后果换短期快感的多巴胺零食') rather than a list of several specific actions. This matches 'names domain and 1-2 concrete actions, but not comprehensive'; it does not reach 4 because no additional specific capabilities are enumerated.

Completeness

Both what and when are explicitly stated: the what ('用习惯替换五步戒断' with the dopamine-snack mechanism) and the when (a lead '当用户……时调用' clause plus a concrete Triggers line, plus an explicit exclusion '不适用于: 工作需要屏幕的职业场景'). This mirrors the anchor example that clearly and explicitly answers both what AND when with concrete trigger phrases; the 'when' here is maximally explicit, ruling out the 4 anchor whose 'when' could be more specific.

Trigger Term Quality

A dedicated Triggers line covers natural Chinese phrases users would actually say ('刷手机/上瘾/短视频/社交媒体/戒断/屏幕时间') plus English equivalents ('screen time/dopamine/addiction'), and the first line adds colloquial scenarios like '感觉空虚、想戒断多巴胺零食'. Missing a few common variations/synonyms such as 'doomscrolling', 'digital detox', '手机成瘾', so it falls just short of the comprehensive-synonym anchor.

Distinctiveness Conflict Risk

The screen-detox niche is clear and the description adds an explicit boundary (distinguishing work screens from consumption screens), which strongly separates it from general productivity skills. However, generic trigger terms like 'addiction' and '多巴胺/dopamine' could also fire for broader habit-breaking or general dopamine-detox skills (the source material even covers caffeine), leaving minor overlap risk with closely related skills rather than the minimal risk of the top anchor.