Conciseness

A ~30-line checklist where every line is a directive or a non-obvious, load-bearing fact ('snapshots alone do not rerender consumers', 'Renaming `useReactTable` alone does not complete the migration') with zero padding and no explanation of concepts Claude already knows. This matches anchor 5 exactly: lean, efficient, every token earns its place.

Actionability

Concrete commands ('intent load @tanstack/table-core#migrate-v8-to-v9', inspect 'node_modules/@tanstack/preact-table/dist/index.d.ts') and specific API names throughout, but the body itself carries no code — the executable examples live one level deep in references/adapter-migration.md — and a few items like 'Keep model inputs stable' remain high-level hints. Mostly executable guidance with minor gaps, i.e. anchor 4.

Workflow Clarity

The sequence is clear and ordered: load the core skill, audit, read the detail reference 'before editing' the affected code, then verify via type-checking and exercising every enabled feature flow. Validation checkpoints are present, but there is no explicit fix-and-re-validate feedback loop after type-check or runtime failures, so it stops short of anchor 5.

Progressive Disclosure

The single in-bundle reference (references/adapter-migration.md) exists, is clearly signaled with when to read it, and appropriately holds the detailed mappings and code. However, two of the three body links point outside the bundle to sibling skills (../getting-started/SKILL.md, ../table-state/SKILL.md) that are not resolvable in this environment, and the reference file itself adds a further hop to those same targets — minor organization gaps that keep it at anchor 4 rather than 5.

Specificity

Lists several concrete actions — 'Migrate preact Table v8 to v9', 'Audit framework construction, rendering, state, and app hooks', 'with shared API changes in the core migration skill' — with only minor gaps (verification, alias removal, and type-level work that the skill actually covers go unmentioned). It exceeds the 1-2 actions of anchor 3 but is not the comprehensive coverage of anchor 5.

Completeness

The 'what' is clear (migrate and audit a specific adapter across construction, rendering, state, and app hooks), but there is no 'Use when...' clause or equivalent trigger guidance anywhere. Per the judging guidelines, a missing explicit trigger clause caps completeness at 3.

Trigger Term Quality

'migrate', 'preact Table', 'v8 to v9', 'rendering', 'state', and 'app hooks' are natural phrases a user would say, giving good keyword coverage. A few natural terms are missing — 'TanStack', 'upgrade', and the '@tanstack/preact-table' package name — so it falls short of anchor 5's synonym/extension coverage.

Distinctiveness Conflict Risk

'preact Table v8 to v9' carves out a sharp niche — 'preact' distinguishes it from react/vue sibling migrations, and 'shared API changes in the core migration skill' explicitly delineates the boundary with the core skill rather than overlapping it. This matches anchor 5's clear niche with minimal conflict risk.