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animation-systems

Use when designing or implementing product-grade web motion like Stripe, Linear, Apple, and Vercel. Covers motion principles, easing/duration defaults, choreography patterns, scroll/hover interactions, performance, accessibility (reduced motion), and implementation guidance.

65

Quality

78%

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SecuritybySnyk

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tessl review fix ./agent-skills/web-design/animation-systems/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

75%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 skill body is a tight, well-structured reference of practical motion defaults that largely assumes Claude's competence and avoids over-explaining basics. Its main weakness is that the promised code recipe is described but never delivered, slightly undercutting actionability and workflow completeness.

Suggestions

Include at least one concrete, copy-paste-ready code recipe (CSS transition and a GSAP/Framer Motion timeline) so the 'Output format' recipe step is actionable, not just named.

Add an explicit verification checkpoint to the workflow, e.g., 'Confirm prefers-reduced-motion fallback was applied and no width/height/top/left properties are animated,' to close the workflow-clarity loop.

Trim light framing prose (e.g., 'Think in primitives you can reuse everywhere', 'Not more animation. Better animation') to tighten token efficiency.

DimensionReasoningScore

Conciseness

The body is dense and well-organized with practical defaults rather than explanations of concepts Claude already knows, though a few framing lines like 'Think in primitives you can reuse everywhere' and the opening 'Not more animation. Better animation' add light padding that could be trimmed.

4 / 5

Actionability

Provides concrete, copy-ready numbers (e.g., 'Opacity: 0 -> 1', 'Y: 12-24px -> 0', '120-200ms', 'ease-out') and explicit property guidance (transform/opacity over width/height), but the promised 'small code recipe' in the output format is never shown and implementation guidance stays library-named rather than executable.

4 / 5

Workflow Clarity

The 'Output format' section sequences the deliverables into a clear 5-step plan (goals -> tokens -> choreography -> implementation -> recipe) and the 'What to ask the user' section acts as a discovery checkpoint, but there are no explicit validation or verification checkpoints after producing the motion plan.

4 / 5

Progressive Disclosure

Content is organized into clearly headed one-level sections (primitives, defaults, choreography, performance, accessibility, implementation) with no bundle files present, keeping everything appropriately in a single well-structured overview; minor gaps are just that some dense token/easing tables could optionally live in a reference file.

4 / 5

Total

16

/

20

Passed

Description

81%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 clearly communicates both the skill's scope and its trigger conditions, leveraging recognizable brand names as natural anchors. It is specific and well-targeted, with only minor room to sharpen the action verbs and broaden explicit keyword synonyms.

DimensionReasoningScore

Specificity

Lists several concrete coverage areas ('motion principles, easing/duration defaults, choreography patterns, scroll/hover interactions, performance, accessibility (reduced motion), and implementation guidance'), but these are topics rather than concrete actions Claude performs, leaving minor gaps in actionable specificity.

4 / 5

Completeness

Explicitly answers both 'what' (covers motion principles, easing/duration defaults, choreography, scroll/hover, performance, accessibility, implementation) and 'when' ('Use when designing or implementing product-grade web motion...') with concrete trigger phrases and named brands.

5 / 5

Trigger Term Quality

Includes natural user-facing phrases ('designing or implementing product-grade web motion') and recognizable brand names users cite (Stripe, Linear, Apple, Vercel), plus terms like 'easing/duration' and 'reduced motion', but is missing some common synonyms like 'animations' or 'transitions' as explicit trigger keywords.

4 / 5

Distinctiveness Conflict Risk

The product-grade web motion niche with named brand references (Stripe/Linear/Apple/Vercel) is fairly distinct from generic animation skills, though there is minor overlap risk with general UI/design or CSS-transition skills.

4 / 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.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
MengTo/Skills
Reviewed

Table of Contents

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