Conciseness

The body is dense and operational — shortcut tables, SOP steps with exact commands, and guardrails, with no explanation of concepts Claude already knows. It falls short of level 5 because of duplication: the "高频硬约束" section restates rules already given in SOP-1/SOP-2/SOP-3 (aisearch routing, search-mobile exception, batch disambiguation), and the Shortcuts preamble's schema-probing rules are heavily compressed but partially overlapping with the SOPs' command guidance.

Actionability

Every instruction is a copy-paste-ready command with flags and placeholders, e.g. `dws contact user get --ids <userId1>,<userId2>,... --format json`, `dws contact user search-mobile --mobile "<完整手机号>" --format json`, and `python scripts/contact_dept_members.py --query "<部门名>"`, plus a 13-row shortcut table and schema-introspection command with exact --jq expressions. This matches the fully-executable, common-cases-covered anchor; level 4 would require minor gaps, and none are evident.

Workflow Clarity

Each SOP has explicit triggers, strictly numbered steps, and feedback loops: ambiguous name matches "必须列候选请用户确认" (never default to the first), SOP-4 normalizes the `deptId=-1` sentinel to `deptId=1` before follow-up calls, and the Shortcuts section prescribes error recovery for `unknown flag`/`unknown command` (one Help retry, then drift reporting). These are read-only flows, so user-confirmation and sentinel normalization checkpoints satisfy the validation anchor; level 4 would require missing checkpoints, which is not the case.

Progressive Disclosure

Structure is good: the 595-line command reference lives in references/contact.md, playbooks and disambiguation guides are in references/ (08-directory.md, intent-guide.md, lite-recipes.md), and all paths referenced in the body exist in the bundle. It stops short of level 5 because navigation is scattered across three places (the 前置条件 blockquote, the bottom 局部意图 section, and inside 08-directory.md, which is the only route to recipes/conventions.md, putting that file two hops from SKILL.md) rather than a consolidated, clearly-signaled reference map.

Specificity

The description lists multiple concrete actions — "已有 userId 后查详情、部门、职位或邮箱，按完整手机号反查用户，或查询自己、部门成员及角色" — comprehensively covering the contact-lookup domain with no vague filler. This matches the anchor for multiple specific concrete actions with comprehensive coverage; the level-4 anchor ('minor gaps in coverage') would understate it since detail/dept/title/email/mobile/self/role queries are all enumerated.

Completeness

It explicitly answers both: what ("钉钉通讯录精确查询" plus enumerated actions) and when (explicit "Use when 已有 userId 后查详情…按完整手机号反查用户，或查询自己、部门成员及角色") with concrete trigger phrases. The level-4 anchor requires a 'when' that could be more explicit; here the triggers are enumerated and concrete, matching the level-5 example structure.

Trigger Term Quality

Natural user phrasings are comprehensively covered including synonyms: userId, 部门, 职位, 邮箱, 完整手机号, 姓名, 工号, 职责, 上下级, 部门成员, 角色 — terms a DingTalk user would actually say. The level-4 anchor ('a few natural terms missing') fits less well because both the trigger set and its delegated counterparts (姓名模糊搜索→aisearch) are named.

Distinctiveness Conflict Risk

It carves a clear niche and actively disambiguates against the sibling skill: "姓名模糊搜索、工号、职责、上下级走 dingtalk-aisearch，拿到 userId 后用本 skill 补详情" plus the command prefix "dws contact". Conflict risk is minimal because the fuzzy-vs-exact boundary is stated explicitly; level 4 would imply unresolved overlap with closely related skills.