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vantajs

Use when adding animated WebGL background effects with Vanta.js (setup, parameters, resizing, performance, integration in React/Next.js).

Quality

85%

Does it follow best practices?

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SecuritybySnyk

Low

Low-risk findings worth noting

SKILL.md
Quality
Evals
Security

Quality

Content

86%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, effective body: executable minimal recipe, exact API signatures, and cause-and-fix pitfalls with no filler. The only real gap is that the React/Next.js integration mentioned in the description is covered only conceptually.

Suggestions

Replace the conceptual React bullet with a short executable useEffect hook example (create in effect, store in ref, destroy on unmount) to match the integration promise in the description.

Show the exact window.THREE workaround snippet (e.g., VANTA.WAVES({ el, THREE })) so the bundling pitfall has a concrete fix.

Consider noting a npm install line or import path, since the only complete recipe relies on CDN script tags.

DimensionReasoningScore

Conciseness

The body is lean: every section adds Vanta-specific knowledge (API calls, pitfalls like 'Container has no size → nothing visible', the window.THREE bundling gotcha) rather than generic WebGL or three.js tutorials. No padded explanations; each token earns its place.

5 / 5

Actionability

The minimal waves recipe is copy-paste ready (script tags + VANTA.WAVES init with concrete options) and the API section gives exact call signatures. Not 5 because the 'React cleanup pattern (concept)' is explicitly non-executable and hints like 'Some builds require window.THREE or passing THREE in options' lack the specific fix code.

4 / 5

Workflow Clarity

The lifecycle is clearly sequenced (init → setOptions → resize → destroy, with 'important in SPAs' called out) and pitfalls map to causes and fixes. Not 5 because the React recipe stops at a conceptual bullet instead of a concrete sequenced useEffect pattern, leaving the most common integration path underspecified.

4 / 5

Progressive Disclosure

This is a short, single-purpose skill (~50-line body) with no bundle files present and no content that warrants external references; the well-organized sections (When to use, APIs, pitfalls, recipes, questions) fully cover it, matching the simple-skill exception.

5 / 5

Total

18

/

20

Passed

Description

78%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 well-formed description that names a clear niche, gives an explicit 'Use when' trigger, and enumerates concrete sub-tasks. It sits just below the top anchors only because its action list is topic-shaped and its trigger coverage lacks synonyms.

Suggestions

State the sub-tasks as actions (e.g., 'Initialize and configure Vanta effects, update options, handle resize, destroy on unmount') to sharpen the what-clause.

Add natural trigger synonyms users might say, such as 'animated hero background', 'particles background', or 'moving background', to widen matching.

Mention related entry points like 'three.js background' or effect names (waves, birds, net) so users describing an effect by name still trigger the skill.

DimensionReasoningScore

Specificity

Lists several concrete capability areas — 'setup, parameters, resizing, performance, integration in React/Next.js' — grounded in the named domain of 'animated WebGL background effects with Vanta.js'. Not the 5 anchor because the items are topic nouns rather than fully stated actions, leaving minor gaps in coverage.

4 / 5

Completeness

Explicitly answers both what ('adding animated WebGL background effects with Vanta.js (setup, parameters, resizing, performance, integration...)') and when ('Use when adding...'). Not 5 because the 'when' is a single trigger condition, narrower than the multi-trigger example at the 5 anchor; not 3 because the 'when' clause is explicit, not merely implied.

4 / 5

Trigger Term Quality

Includes natural phrases users would say — 'animated WebGL background effects', 'Vanta.js', 'React/Next.js' — plus sub-tasks like 'resizing' and 'performance'. Not 5 because it lacks synonyms and adjacent phrasings (e.g., 'hero background', 'particles', 'three.js background', '.js naming) that would broaden trigger coverage.

4 / 5

Distinctiveness Conflict Risk

Vanta.js is a named niche library with distinctive triggers ('animated WebGL background effects', 'Vanta.js', 'React/Next.js integration'), so risk of firing for the wrong skill is minimal.

5 / 5

Total

17

/

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

MengTo/Skills

Path

agent-skills/web-design/vantajs/SKILL.md

Reviewed

Table of Contents

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