Conciseness

The body is ~20 lines with zero padding and no explanations of concepts Claude already knows — sections ("## 功能", "## 触发场景", "## 脚本") each earn their place, matching the anchor 'lean and efficient; assumes Claude's competence; every token earns its place'. It is not 4 because there is nothing that could be trimmed.

Actionability

The only concrete guidance is "使用 `scripts/todo.py` 进行持久化操作，数据存储在工作区的 `todos.json` 中" plus a trigger-to-operation mapping — minimal concrete pointers with no specific steps to execute (no command syntax, arguments, or examples for todo.py). It sits at the 'minimal concrete guidance; missing the specific steps to execute' anchor rather than 1 because concrete artifacts (script path, data file) are named; it cannot be 3+ because the referenced scripts/todo.py does not exist in the bundle, leaving nothing executable at all.

Workflow Clarity

The body maps triggers to operations ("完成了任务 X"→mark complete, "删除任务 X"→delete) but defines no step sequence for actually performing an operation, and the destructive delete operation has no validation/verification step — which per the judging guidelines caps workflow clarity at 3. It scores 2 rather than 3 because no steps are listed at all (the mapping is not a step sequence) and validation is entirely absent; it is above 1 because the capabilities and trigger mapping are coherently organized.

Progressive Disclosure

The short body is well-sectioned (matching the simple-skill pattern), but its single external reference "scripts/todo.py" is dangling — no scripts/ directory or any bundle file exists — so the reference resolves to nothing and Claude would try to read a missing file. This fits 'references present but not clearly signaled' territory more than the 4 anchor's 'minor organization gaps', because a broken reference is a functional navigation defect, not just an organizational one.

Specificity

The description names the domain ("帮助用户管理待办事项") and enumerates four concrete actions ("添加、删除、标记完成、列出任务"), matching the anchor for several specific actions with minor gaps. It falls short of 5 because the trailing hedge "等操作" ("and other operations") signals unspecified extras rather than comprehensive coverage; it is above 3 because it lists several specific actions rather than only 1-2.

Completeness

The 'what' is clear (manage todos with add/delete/mark-complete/list operations), but the 'when' is entirely absent — there is no "Use when..." or equivalent trigger guidance, which per the judging guidelines caps completeness at 3. It is not 4/5 because no usage trigger exists at all; it is not 2 because the 'what' half is concrete and multi-action.

Trigger Term Quality

Relevant domain keywords are present ("待办事项", "任务", "添加", "删除", "标记完成", "列出任务") but natural variations users might say (e.g., "待办", "任务清单", "checklist", "提醒", "记录") are missing, matching the anchor 'some relevant keywords but missing common variations or synonyms'. It is not 4 because there is no trigger-phrase phrasing (no 'Use when...' equivalent) and synonym coverage is thin; it is not 2 because the terms are domain-specific rather than generic.

Distinctiveness Conflict Risk

The todo-management niche with its specific CRUD enumeration ("添加、删除、标记完成、列出任务") is mostly distinct with only minor overlap risk against closely related task-management or reminder skills, matching the anchor at 4. It is not 5 because there are no explicit trigger phrases to sharpen the niche; it is not 3 because the enumerated operations on 待办事项 are more specific than generic 'works with X files' phrasing.