Conciseness

The body is dense checklist-style directives with zero padding: it assumes Claude's competence by naming v8 APIs ('getCoreRowModel()', 'sortingFns', 'onStateChange', 'useLegacyTable') without explaining what they are, and every line is an actionable migration instruction. Matches the 'lean and efficient; every token earns its place' anchor; nothing explains concepts Claude already knows.

Actionability

Concrete, executable guidance throughout: exact commands ('intent load <package>#migrate-v8-to-v9'), exact entrypoints ('@tanstack/react-table/legacy', 'node_modules/@tanstack/table-core/dist/index.d.ts'), and exact rename/registration targets ('create*RowModel() feature slots', 'AggregationFnDef', 'TFeatures', 'columnSizingFeature before columnResizingFeature'). As an instruction-only skill its guidance is fully specific, and detailed mappings are carried by the reference files, so there are no real gaps.

Workflow Clarity

A clear 4-step Procedure with explicit validation at both ends ('Establish passing tests for the existing table' as baseline; 'Type-check, exercise every enabled interaction and client/server stage') plus a completion-checks section and a full audit checklist. It falls short of the anchor-5 exemplar only because there is no explicit error-recovery loop (e.g., 'if the type-check or an interaction test fails, revisit the corresponding checklist item and re-verify'), unlike the anchor's 'If errors: fix and re-validate'; it is clearly above anchor 3 since checkpoints are explicit, not implicit.

Progressive Disclosure

The 'Read mappings for affected code' table routes specific audit findings to four well-signaled, one-level-deep references (references/architecture.md, state.md, feature-apis.md, typescript.md), all of which exist and hold the detailed v8-to-v9 mappings. The body stays a genuine overview and navigation is trivial, matching the top anchor exactly.

Specificity

The description lists multiple concrete actions — 'Audit and migrate Table v8 to v9', 'Inventory affected APIs', 'follow the shared checklist', and read the named 'architecture, state, feature, and TypeScript mappings' — comprehensively covering what the skill does. It exceeds anchor 4 ('minor gaps in coverage') because every phase of the skill's work is named explicitly.

Completeness

The 'what' is clear (audit and migrate Table v8 to v9, inventory affected APIs, follow the shared checklist, read the required mappings), but there is no 'Use when...' clause or equivalent explicit trigger guidance; per the judging guidelines a missing trigger clause caps completeness at 3, and the 'when' is only weakly implied for a user already mid-migration.

Trigger Term Quality

It contains the core natural phrases a user would say ('migrate', 'Table v8 to v9', 'audit'), giving good keyword coverage, but misses common synonyms and variations such as 'upgrade', 'TanStack Table', or adapter/framework names. Short of anchor 5's synonym-and-extension comprehensiveness but clearly above anchor 3's partial coverage.

Distinctiveness Conflict Risk

'Audit and migrate Table v8 to v9' pins a specific library-version niche with distinct triggers, so overlap with other skills is minimal — it would not fire for generic table, migration, or document work.