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antigravity-design-expert

Core UI/UX engineering skill for building highly interactive, spatial, weightless, and glassmorphism-based web interfaces using GSAP and 3D CSS.

65

1.21x
Quality

62%

Does it follow best practices?

Impact

86%

1.21x

Average score across 2 eval scenarios

SecuritybySnyk

Passed

No findings from the security scan

Fix and improve this skill with Tessl

tessl review fix ./skills/antigravity-design-expert/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

71%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 content is well-structured and concisely specifies design principles with concrete CSS values, but it lacks any executable code examples despite being a code-heavy skill. Adding runnable GSAP/3D-transform snippets would lift actionability.

Suggestions

Add at least one complete, copy-paste-ready code example (e.g., a GSAP ScrollTrigger entrance or a R3F glassmorphism card component) instead of only echoing a user prompt in the Example section.

Trim definitional prose for concepts Claude already knows (parallax, staggered entrances) and keep only the concrete spec values.

Include a brief verification step in Execution Constraints (e.g., test with prefers-reduced-motion enabled and profile animation performance).

DimensionReasoningScore

Conciseness

The body is largely efficient and dense with concrete spec values, with only mild over-explanation of familiar concepts (parallax, staggered entrances) that could be trimmed, fitting the 'efficient with minor instances of over-explanation' anchor.

4 / 5

Actionability

It supplies precise configuration values and named tools but no executable code blocks (no GSAP/R3F/component example), leaving the implementation incomplete rather than copy-paste ready.

3 / 5

Workflow Clarity

As a single-purpose design-guidance skill it organizes clear do/don't execution constraints rather than a multi-step sequence, with only minor validation gaps (no reduced-motion/performance verification step).

4 / 5

Progressive Disclosure

The self-contained body is under 50 lines with no need for external references and is organized into well-labeled sections, matching the simple-skill exception for a clean one-level structure.

5 / 5

Total

16

/

20

Passed

Description

53%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 conveys the skill's domain and tooling but omits any explicit 'when to use' trigger guidance and only loosely specifies concrete actions. It is distinguishable but would benefit from natural trigger phrases and enumerated capabilities.

Suggestions

Add an explicit 'Use when ...' clause naming concrete natural trigger phrases (e.g., 'Use when building glassmorphism dashboards, GSAP scroll animations, or 3D CSS transforms').

Enumerate specific concrete actions the skill performs rather than the single broad verb 'building'.

Include common natural synonyms and tool variants a user might actually say (e.g., 'frosted glass', 'scroll-triggered animations', 'React Three Fiber').

DimensionReasoningScore

Specificity

Names the domain (web interfaces) and tooling (GSAP, 3D CSS) but relies on one broad action ('building ... interfaces') without enumerating concrete capabilities, fitting the anchor for naming the domain with limited concrete actions.

3 / 5

Completeness

A clear 'what' is present but the 'when' is entirely absent; per the missing 'Use when...' guidance this caps completeness at 3, which matches the 'clear what, when missing' anchor.

3 / 5

Trigger Term Quality

Includes relevant specialist terms ('glassmorphism', 'GSAP', '3D CSS', 'spatial') but lacks common natural variations/synonyms and any 'Use when...' phrasing, matching the 'some relevant keywords but missing variations' anchor.

3 / 5

Distinctiveness Conflict Risk

The glassmorphism + GSAP + 3D CSS niche is mostly distinct with only minor overlap against general UI/animation skills, though it stops short of full disambiguation without explicit trigger phrases.

4 / 5

Total

13

/

20

Passed

Validation

93%

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

Validation15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

15

/

16

Passed

Repository
sickn33/agentic-awesome-skills
Reviewed

Table of Contents

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