Conciseness

The ~50-line body contains only Vue-specific, non-inferable knowledge: "table.Subscribe is deprecated", "passing .value once breaks later synchronization", "Assign the resolved updater result to the ref", and concrete .d.ts inspection paths. No padding, no explanation of concepts Claude already knows — every token earns its place, matching the lean anchor 5 rather than anchor 4 (which would still contain trimmable over-explanation).

Actionability

The "Control a slice" section provides a complete, executable, copy-paste-ready TypeScript example (imports, tableFeatures, ref + computed state, updater-resolving onPaginationChange) covering the common controlled-slice case, plus a concrete prerequisite command ("run intent load @tanstack/table-core#table-state") and specific files to inspect ("useTable.d.ts", "reactivity.d.ts"). This matches the fully-executable anchor 5; the alternative atom-ownership path is also stated concretely.

Workflow Clarity

The workflow is unambiguous: an explicit prerequisite step ("Before starting, run intent load..."), logically ordered sections for the two operations (read state, control a slice), and an explicit conditional branch ("If this task changes processing features, run intent load @tanstack/table-core#table-features"). There are no destructive or batch operations, so the missing-validation cap does not apply, and this single-purpose skill qualifies for the simple-skill exception with a clear sequence.

Progressive Disclosure

SKILL.md is a lean overview holding the core pattern, while deeper material (common mistakes, render-boundary details, wrong/right comparisons) lives in references/reactivity.md, which exists in the bundle, is one level deep, clearly signaled ("read [reactivity details](references/reactivity.md)"), and scoped to specific failure modes rather than duplicating the body. This matches the clear-overview anchor 5 with no nested or buried references.

Specificity

"Read and control Table v9 state in vue" names the domain plus concrete actions, and "tracked reads, subscriptions, controlled slices, and framework-specific reactive boundaries" enumerates several specific capability areas with minor gaps (no mention of updates/resets). It falls between anchor 3 (1-2 concrete actions) and anchor 4 (several specific actions), noticeably above the midpoint because four distinct capability areas are named.

Completeness

"Read and control Table v9 state in vue" explicitly answers what the skill does, and "Use for tracked reads, subscriptions, controlled slices, and framework-specific reactive boundaries" explicitly answers when to use it with concrete trigger phrases. This matches the anchor-5 example structure (what + explicit 'Use for...' with concrete triggers), not anchor 4 where the 'when' is only generally stated.

Trigger Term Quality

Terms like "vue", "controlled slices", "subscriptions", and "reactive boundaries" are phrases users would naturally say in this domain, but the most natural trigger — the library name "TanStack" / "@tanstack/vue-table" — is entirely absent. This matches anchor 3: some relevant keywords but missing common variations and synonyms; not anchor 4 because a primary natural term is missing rather than just a few.

Distinctiveness Conflict Risk

"Table v9 state in vue" carves a clear niche against sibling framework-specific state skills, but omitting the library name leaves minor overlap risk with other Vue table/state skills (a user saying 'tanstack table' or 'reactive table state' could match a different skill). Mostly distinct with minor overlap risk matches anchor 4; not 5 because the distinctness rests on 'vue' alone rather than a named library.