Conciseness

Overall lean with no explanations of concepts Claude already knows, but two trims exist: the time-sensitive provenance line "Based on Vue 3.5, generated at 2026-09-25" (version/date not placed in a deprecated/old-patterns section, which the guidelines penalize) and the exhaustive import listing in "Key Imports" (e.g., onBeforeMount, onBeforeUpdate) that mostly restates known Vue imports. Fits anchor 4 (efficient, minor over-explanation) rather than anchor 5 (every token earns its place).

Actionability

The Component Template is a complete, typed, copy-paste-ready SFC exercising the canonical case (typed defineProps/defineEmits/defineModel, computed, watch, onMounted, template), and preferences are concrete directives ("prefer `shallowRef` over `ref`", "Discourage using Reactive Props Destructure"). Matches anchor 5's fully executable, common-case coverage with no gaps.

Workflow Clarity

This is a reference-style skill with no multi-step process and no destructive or batch operations, so the validation cap does not apply. Per the simple-skill guidance, the single action — write Vue SFCs with `<script setup lang="ts">` following the stated preferences and consult the topic-mapped reference — is unambiguous, with a clear preferences section and topic-to-reference tables. Not anchor 4, as nothing is ambiguous or gapped for this skill type.

Progressive Disclosure

The body is a lean overview (preferences, topic tables, quick-reference template) with three clearly signaled references in [topic → file] tables; all three files (script-setup-macros.md, core-new-apis.md, advanced-patterns.md) exist, match their described topics, and are one level deep with no nested references. Matches anchor 5's clear overview with well-signaled one-level-deep references and easy navigation.

Specificity

Enumerates several concrete, named capabilities ("defineProps/defineEmits/defineModel", "Transition/Teleport/Suspense/KeepAlive", "watchers") but frames them as noun-phrase topics rather than verb-driven actions, and "reactivity system" is an umbrella term. This exceeds anchor 3 (only 1-2 concrete items) but falls short of anchor 5's comprehensive action-verb coverage.

Completeness

Explicitly answers both: what ("Vue 3 Composition API, script setup macros, reactivity system, and built-in components") and when ("Use when writing Vue SFCs, defineProps/defineEmits/defineModel, watchers, or using Transition/Teleport/Suspense/KeepAlive") with concrete trigger phrases — structurally identical to the anchor-5 example. Not anchor 4, since the 'when' clause is already explicit and specific.

Trigger Term Quality

Strong natural terms users would actually say: "Vue 3", "Composition API", "script setup", "Vue SFCs", "watchers", and exact macro/component names. Missing the ".vue" file extension and synonyms like "single-file component" or "ref/computed", so it fits anchor 4 (good coverage, a few natural terms missing) rather than anchor 5's comprehensive synonym/extension coverage.

Distinctiveness Conflict Risk

Clear niche (Vue 3) with Vue-exclusive API names as triggers (defineModel, Teleport, KeepAlive), which would not fire for React or generic JavaScript work. Distinct triggers give minimal conflict risk, matching anchor 5; anchor 4's 'minor overlap risk' would require shared generic trigger terms, which are absent.