animejs-animation

Advanced JavaScript animation library skill for creating complex, high-performance web animations.

Quality

61%

Does it follow best practices?

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Securityby

Passed

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tessl review fix ./skills/animejs-animation/SKILL.md

Quality

Content

72%

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

The content is well-structured with an executable, copy-paste-ready code example and good organization, but it is weakened by marketing-style fluff and a descriptive rather than verifiable workflow.

Suggestions

Trim editorializing ('jaw-dropping', 'awards-caliber', 'ABSOLUTE MANDATE', 'feel expensive') to improve token efficiency.

Convert the Execution Workflow from descriptive guidance into verifiable steps, e.g. add a checkpoint to preview/confirm the animation timing in the browser before finalizing.

Keep the concrete easing and stagger guidance, which is the strongest part of the skill.

Dimension	Reasoning	Score
Conciseness	The body is mostly lean and does not explain concepts Claude already knows, but it carries unnecessary editorializing ('jaw-dropping', 'awards-caliber', 'ABSOLUTE MANDATE', 'feel expensive') that pads tokens without adding technical value.	2 / 3
Actionability	Provides a fully executable anime.timeline() example using real API calls (anime.stagger, spring easing, '-=800' offset) plus a specific will-change performance tip, making it copy-paste ready.	3 / 3
Workflow Clarity	A clear 4-step Execution Workflow sequence is present, but the steps are largely descriptive rather than verifiable and there is no checkpoint confirming the animation behaves as intended; for this non-destructive task that keeps it at 2 rather than 3.	2 / 3
Progressive Disclosure	No bundle files exist and none are needed; the content is self-contained and organized into clear, well-signaled sections (Context, When to Use, Execution Workflow, Strict Rules, Limitations), which per the scoring notes earns a 3.	3 / 3
	Total	10 / 12 Passed

Description

50%

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 identifies the domain and a single high-level capability but offers no concrete action list and no explicit trigger guidance, leaving it generic and prone to overlap with related animation skills.

Suggestions

Add concrete capabilities to the description, e.g. '...timelines, staggered reveals, and SVG path animation' to lift specificity.

Append an explicit trigger clause such as 'Use when creating complex, multi-stage web animations, staggered reveals, or animated SVG paths.'

Include natural user-facing keywords like 'animate', 'stagger', 'timeline', and 'SVG animation' to improve trigger term coverage.

Dimension	Reasoning	Score
Specificity	Names the domain ('JavaScript animation library') and a capability ('creating complex, high-performance web animations') but describes only one abstract action rather than listing multiple concrete actions like staggering, timelines, or SVG morphing.	2 / 3
Completeness	It states what the skill does (animation library for web animations) but provides no explicit 'Use when...' trigger guidance, so per the judging guidelines completeness is capped at 2 with 'when' only implied.	2 / 3
Trigger Term Quality	Contains relevant natural keywords ('JavaScript animation', 'web animations') but misses common variations a user would actually say (e.g., 'animate an element', 'stagger', 'SVG animation', 'timeline') and lacks any trigger clause.	2 / 3
Distinctiveness Conflict Risk	The animation niche is somewhat specific but 'high-performance web animations' could overlap with CSS-transition or general UI-motion skills, and the absence of distinct trigger terms keeps it from being clearly non-conflicting.	2 / 3
	Total	8 / 12 Passed

Validation

93%

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 — 15 / 16 Passed

Validation for skill structure

Criteria	Description	Result
frontmatter_unknown_keys	Unknown frontmatter key(s) found; consider removing or moving to metadata	Warning

	Total	15 / 16 Passed

Repository: sickn33/antigravity-awesome-skills
Path: skills/animejs-animation/SKILL.md
Commit: 07da495

Reviewed: 1 day ago

Table of Contents

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