Conciseness

The body is dense and assumes competence — e.g., "Its second argument changes the selected shape exposed as `table.state` and shallow-gates owner rerenders" — with no padding and no explanation of concepts Claude already knows. Every line delivers non-generic, library-specific guidance, matching the 'lean and efficient; every token earns its place' anchor rather than anchor 4, which expects trimmable over-explanation.

Actionability

The controlled-slice example is complete and copy-paste ready (imports, features, controlled state, setter callback, rendered usage), and "API discovery" gives concrete inspection paths (`node_modules/@tanstack/octane-table/src/index.d.ts`, `*.tsrx.d.ts` sidecar, `src/types.ts`). It matches 'fully executable; covers the common cases' — the one inline example covers the primary controlled-slice case with advanced cases properly delegated to the reference, so anchor 4's 'minor gaps' does not apply.

Workflow Clarity

This is a single-purpose, under-50-line skill and the simple-skill exception applies: the sequence is coherent — "Load `intent load @tanstack/table-core#table-state` first", then default selection behavior, then controlled-slice setup, then reactive boundary rules. There are no destructive or batch operations that would require validation checkpoints, and the ordering is unambiguous, so it fits anchor 5 rather than anchor 4's 'minor validation gaps'.

Progressive Disclosure

"Read for the task" clearly signals when to open [reactivity](references/reactivity.md), which is verified as a real, one-level-deep reference with no further chaining, and the body appropriately keeps advanced detail out of SKILL.md. Not 5 because the second referenced path, `../getting-started/SKILL.md`, does not exist in the provided bundle — a dangling navigation link that matches anchor 4's 'minor organization gaps'; not 3 because the structure and signaling are otherwise strong.

Specificity

"Read and control Table v9 state in octane" plus "tracked reads, subscriptions, controlled slices" names the domain and several concrete capabilities, matching the 'lists several specific actions; minor gaps in coverage' anchor. Not 5 because coverage omits update/reset behaviors and "framework-specific reactive boundaries" is abstract; not 3 because multiple concrete actions are listed beyond a single generic verb.

Completeness

"Read and control Table v9 state in octane" explicitly answers what, and "Use for tracked reads, subscriptions, controlled slices, and framework-specific reactive boundaries" provides an explicit 'when' clause with concrete trigger contexts, matching the anchor-5 example pattern. Anchor 4 does not fit because the when-clause is explicit and enumerates four specific use contexts rather than being vague.

Trigger Term Quality

Natural domain phrases a user would say — "Table v9 state", "octane", "subscriptions", "controlled slices" — give good keyword coverage, fitting anchor 4. Not 5 because common synonyms and brand terms such as "TanStack", "controlled state", or "atoms" are missing; not 3 since several natural phrases users in this domain would actually utter are present.

Distinctiveness Conflict Risk

"Table v9 state in octane" carves a clear niche bound to one library, version, and framework, with distinct triggers (subscriptions, controlled slices) — minimal conflict risk with other skills. It clearly matches the anchor-5 'clear niche with distinct triggers' rather than anchor 4's 'minor overlap risk with closely related skills'.