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playground

Creates interactive HTML playgrounds — self-contained single-file explorers that let users configure something visually through controls, see a live preview, and copy out a prompt. Use when the user asks to make a playground, explorer, or interactive tool for a topic.

70

Quality

85%

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SecuritybySnyk

Passed

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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.

A tight, well-structured skill body: efficient sections, executable code patterns, and clear template-based delegation. The main gaps are the missing verification step in the workflow and the absence of the referenced template files from the bundle, which both leaves the disclosure chain unverifiable and pushes the real construction detail off-page.

Suggestions

Add a validation checkpoint to the workflow (e.g., a quick check that the preview updates on first control change before running `open <filename>.html`), which would lift workflow clarity to the top anchor.

Include a minimal complete HTML skeleton (or inline one in a template) so the guidance is fully self-contained even if template files are unavailable, closing the actionability gap.

Ensure the six referenced templates/*.md files actually ship alongside SKILL.md in the skill bundle, so the clearly signaled one-level-deep references resolve to real files.

DimensionReasoningScore

Conciseness

The body is lean and assumes Claude's competence: no concept explanations, no padding — sections like "Core requirements", "State management pattern", and "Common mistakes to avoid" each deliver only non-obvious, skill-specific guidance. Every token earns its place, matching the top anchor.

5 / 5

Actionability

Concrete, executable JS patterns (updateAll()/updatePrompt() with real conditional logic) and a specific command ("run `open <filename>.html`") give mostly copy-paste-ready guidance, but the complete build instructions are delegated to templates/*.md files that are not present in the bundle, leaving a gap between the patterns here and a fully worked example.

4 / 5

Workflow Clarity

The 4-step sequence (identify type → load matching template → follow template → open in browser) is clear with concrete file paths, but there is no validation checkpoint (e.g., verifying the playground renders or controls respond) before the final open step — the sequence has most checkpoints but a minor validation gap, matching anchor 4.

4 / 5

Progressive Disclosure

The SKILL.md is a well-organized overview with six clearly signaled, one-level-deep references (each templates/*.md entry names its path and use case), which is good structure. However, none of the referenced template files exist in the bundle (no references/, scripts/, assets/, or templates/ directories), so the navigation cannot be verified end-to-end — a minor organization gap rather than the fully clean split of anchor 5.

4 / 5

Total

17

/

20

Passed

Description

88%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 strong description: third-person voice, concrete multi-action capability statement, and an explicit 'Use when...' trigger clause. The only weaknesses are slightly broad trigger terms ("explorer", "interactive tool") that create minor overlap risk and a few missing natural synonyms.

DimensionReasoningScore

Specificity

"Creates interactive HTML playgrounds", "configure something visually through controls", "see a live preview", and "copy out a prompt" list multiple concrete actions covering the artifact's full lifecycle, matching the comprehensive-coverage anchor rather than the minor-gaps anchor below it.

5 / 5

Completeness

It explicitly answers both what ("Creates interactive HTML playgrounds — self-contained single-file explorers that let users configure something visually through controls, see a live preview, and copy out a prompt") and when ("Use when the user asks to make a playground, explorer, or interactive tool for a topic"), with concrete trigger phrases matching the anchor exactly.

5 / 5

Trigger Term Quality

"playground, explorer, or interactive tool" are phrases users would naturally say, giving good keyword coverage, but common synonyms like "interactive demo", "configurator", or "builder" are missing — above anchor 3, not yet comprehensive like anchor 5.

4 / 5

Distinctiveness Conflict Risk

"playground" plus the prompt-copy output carves a distinct niche, but "explorer" and "interactive tool" are broad enough to overlap with dashboard/visualization or general web-builder skills — mostly distinct with minor overlap risk, not the minimal-risk anchor.

4 / 5

Total

18

/

20

Passed

Validation

100%

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

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
anthropics/claude-plugins-official
Reviewed

Table of Contents

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