Name: with-tanstack-virtual
Rating: 72 (1 reviews)
Author: TanStack

with-tanstack-virtual

Apply TanStack Virtual rendering to the final Preact Table row or column model through React compatibility or virtual-core. Load for adapter selection, reactive counts, scroll targets, stable keys, measurements, spacer geometry, sticky layout, sizing CSS, or overscan.

Quality

89%

Does it follow best practices?

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Securityby

Passed

No findings from the security scan

Quality

Content

93%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.

A tight, highly actionable skill body with executable code and well-flagged common mistakes. The only gap is the absence of an explicit verification step, though the non-destructive nature of the task makes that a minor concern.

Suggestions

Add a brief verification cue (e.g. confirm the rendered row count matches virtualizer.getVirtualItems().length) so Claude can self-check the integration.

Consider a short 'Verify' note in API Discovery reminding Claude to cross-check signatures against the installed .d.ts before relying on them.

Dimension	Reasoning	Score
Conciseness	Lean and efficient with no preamble explaining virtualization basics; assumes Claude's competence and every section earns its place.	5 / 5
Actionability	Fully executable, copy-paste-ready code for setup, column sizing, and dynamic measurement, plus explicit wrong/correct comparisons covering the common cases.	5 / 5
Workflow Clarity	A clear, unambiguous single-purpose flow with an API-discovery inspection sequence, but no explicit validation/verification checkpoint (acceptable here since the skill is non-destructive rendering, not a batch/destructive operation).	4 / 5
Progressive Disclosure	Well-organized sections (Setup, Core Patterns, Common Mistakes, API Discovery) with self-contained content; no bundle files exist, so the inline structure is appropriately one-level and navigable.	5 / 5
	Total	19 / 20 Passed

Description

85%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.

A highly specific, well-scoped description that clearly states both capability and load triggers. Its main weakness is trigger-term naturalness — the terms are technically apt but jargon-heavy and lack casual synonyms.

Suggestions

Add one or two natural-language trigger phrases (e.g. 'Use when virtualizing a Preact table' or 'when the user asks to virtualize large tables') alongside the technical keywords.

Include a common synonym or two (e.g. 'row virtualization' / 'windowing') so users who don't say 'overscan' or 'spacer geometry' still surface the skill.

Dimension	Reasoning	Score
Specificity	Lists multiple concrete actions ('Apply TanStack Virtual rendering', 'adapter selection, reactive counts, scroll targets, stable keys, measurements, spacer geometry, sticky layout, sizing CSS, or overscan') with comprehensive coverage.	5 / 5
Completeness	Explicitly answers both 'what' (Apply TanStack Virtual rendering to the final row or column model) and 'when' ('Load for adapter selection, reactive counts, scroll targets...') with concrete trigger phrases.	5 / 5
Trigger Term Quality	Trigger terms are present and relevant but heavily technical jargon ('reactive counts', 'spacer geometry', 'overscan'); missing the more natural phrasings or synonyms a user might casually say.	3 / 5
Distinctiveness Conflict Risk	A clear niche (TanStack Virtual over a Preact Table model) with distinct, specific triggers and minimal risk of firing for an unrelated skill.	5 / 5
	Total	18 / 20 Passed

Validation

87%

Warnings & errors only

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

Validation — 14 / 16 Passed

Validation for skill structure

Criteria	Description	Result
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
Path: packages/preact-table/skills/with-tanstack-virtual/SKILL.md
Commit: 9e523bc

Reviewed: 1 day ago

Table of Contents

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