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migrate-v8-to-v9

Complete Svelte v8-to-v9 migration reference: Svelte 5, createTable, beta.59 selector removal, explicit features and row-model slots, atom/rune state, rendering helpers, prototype methods, type generics, sorting, sizing, selection, and logical pinning.

64

Quality

78%

Does it follow best practices?

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SecuritybySnyk

Passed

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tessl review fix ./packages/svelte-table/skills/migrate-v8-to-v9/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

82%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The content is a tight, highly actionable migration reference with concrete code, complete API mapping tables, and a clear ordered workflow plus checklist. Its only gaps are the absence of an explicit validation feedback loop and a few long tables that could be split out.

DimensionReasoningScore

Conciseness

The body is dense with concrete v8→v9 mapping tables and a copy-paste code block, assuming Claude's competence with no concept padding; it is long, however, and a few explanatory sentences (e.g. the note on logical region naming and DOM direction) could be tightened.

4 / 5

Actionability

It provides fully executable guidance — a copy-paste `createTable({ features, ... })` example plus exhaustive mapping tables (e.g. `createSvelteTable` → `createTable`, `columnPinning.left` → `.start`) covering the common cases.

5 / 5

Workflow Clarity

A numbered "Recommended Migration Order", severity-tagged "Common Migration Failures", and a checkbox "Final Checklist" give a clear sequence with checkpoints, but there is no explicit validate→fix→retry feedback loop.

4 / 5

Progressive Disclosure

The single-file skill is well organized with clear section headers and no nested references, but some long mapping tables (e.g. the column-pinning table) are the kind of content that could optionally live in a separate reference file.

4 / 5

Total

17

/

20

Passed

Description

75%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description is specific, distinctive, and rich in concrete capabilities, but it omits an explicit "Use when..." trigger clause, which is the main weakness. Adding trigger guidance would raise completeness and trigger-term quality.

Suggestions

Append a 'Use when...' clause, e.g. 'Use when migrating @tanstack/svelte-table from v8 to v9, or when the user mentions SvelteTable, TanStack table, or Svelte 5 migration.'

Add natural synonyms users say ('TanStack table', 'SvelteTable') to improve trigger-term coverage.

Keep the concrete capability list but consider trimming the longest enumerations so the trigger clause is not crowded out.

DimensionReasoningScore

Specificity

Lists many concrete migration actions — "createTable, beta.59 selector removal, explicit features and row-model slots, atom/rune state, rendering helpers, prototype methods, type generics, sorting, sizing, selection, and logical pinning" — giving comprehensive, not vague, coverage.

5 / 5

Completeness

The "what" is clear ("Complete Svelte v8-to-v9 migration reference"), but there is no "Use when..." clause or equivalent explicit trigger guidance, which caps completeness at 3 per the guidelines.

3 / 5

Trigger Term Quality

"Svelte v8-to-v9 migration" supplies good natural keywords, but it omits common variants a user might say such as "TanStack table", "SvelteTable", or version strings, so it falls just short of comprehensive.

4 / 5

Distinctiveness Conflict Risk

The narrow niche "Svelte v8-to-v9 migration" with version-specific terms is highly distinct and unlikely to trigger for unrelated skills.

5 / 5

Total

17

/

20

Passed

Validation

87%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation14 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

14

/

16

Passed

Repository
TanStack/table
Reviewed

Table of Contents

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