Conciseness

The body is short and mostly on-point, but it includes material Claude already knows — the full conventional type list ("feat：新增能力 / fix：修复问题 / refactor：重构但不改外部行为…") — and repeats the high-risk-history caveat four times ("不适用场景", "快速指导" item 6, "关键陷阱", "延伸阅读"). This matches anchor 3 (mostly efficient but includes some unnecessary explanation or could be tightened) rather than anchor 2, since the padding is localized rather than pervasive.

Actionability

For an instruction-only skill the guidance is largely executable: a concrete format example ("feat: 添加流水线模板功能 #1234"), an explicit one-purpose-per-commit split rule, and a concrete pre-commit self-check list (聚焦、敏感信息、必要验证). It sits at anchor 4 rather than 5 because the common cases are only partially covered — no body/subject-structure examples, no guidance on scope or issue-number placement beyond one example.

Workflow Clarity

"快速指导" lays out an implicit sequence (classify the change → write the message → split mixed changes → self-check) and item 5 provides an explicit pre-commit validation checklist, which fits anchor 4 (clear sequence with most checkpoints present). It is below anchor 5 because the ordering is interleaved with principles (items 1 and 6) rather than presented as an ordered procedure with feedback on failure, and above anchor 3 because a concrete checkpoint does exist.

Progressive Disclosure

This is a simple, single-purpose skill under 50 lines with no bundle files (no references/, scripts/, or assets/ exist, and the body makes no file references that would need verification). Per the rubric's simple-skill guidance, well-organized sections alone justify a 5: the body is cleanly split into 适用场景, 不适用场景, 快速指导, 高信号规则, 关键陷阱, 延伸阅读 with nothing that belongs in a separate file.

Specificity

The description lists several concrete actions — "选择 commit type", "撰写 commit message", "判断是否拆分提交", "准备 PR 前自检" — alongside the domain (BK-CI Git commits). It falls at anchor 4 rather than 5 because "整理提交边界" is stated somewhat abstractly and the coverage of the skill's rules (e.g. message format, issue-number conventions) is implied rather than enumerated; it is above anchor 3 since well more than 1-2 concrete actions are named.

Completeness

Both parts are explicit: the 'what' ("编写 BK-CI Git 提交信息和整理提交边界…") and the 'when' ("当用户要提交代码而不是讨论实现细节时优先使用"). The 'when' clause is present and usable but is a single discriminating condition rather than a set of concrete trigger phrases, matching anchor 4 ('when' could be more explicit or specific) rather than anchor 5.

Trigger Term Quality

It includes natural terms users would say in this domain: "commit type", "commit message", "拆分提交", "提交代码", "PR". Coverage is good but a few natural variations are missing (e.g. "提交信息", "git commit", "写提交说明"), placing it at anchor 4 rather than the comprehensive synonym coverage of anchor 5, while clearly above the generic keyword level of anchor 3.

Distinctiveness Conflict Risk

The niche (BK-CI commit message conventions and commit-boundary hygiene) is fairly distinct with dedicated triggers like "commit type" and "拆分提交". Minor overlap risk remains with generic git skills or PR-preparation skills, so it fits anchor 4 (mostly distinct, minor overlap risk) rather than anchor 5's minimal-conflict clear niche.