CtrlK
CommunityDocumentationLog inGet started
Tessl Logo

frontend-design

tessl i github:anthropics/claude-code --skill frontend-design
github.com/anthropics/claude-code

Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, or applications. Generates creative, polished code that avoids generic AI aesthetics.

Review Score

64%

Validation Score

13/16

Implementation Score

50%

Activation Score

67%

SKILL.md
Review
Evals

Generated

Validation

Total

13/16

Score

Passed
CriteriaScore

metadata_version

'metadata' field is not a dictionary

body_output_format

No obvious output/return/format terms detected; consider specifying expected outputs

body_steps

No step-by-step structure detected (no ordered list); consider adding a simple workflow

Implementation

Suggestions 3

Score

50%

Overall Assessment

This skill provides strong conceptual direction for creating distinctive frontend interfaces with clear aesthetic principles and anti-patterns to avoid. However, it lacks concrete code examples demonstrating the techniques described, and the workflow could benefit from explicit validation steps to ensure outputs meet the quality bar. The content is moderately efficient but could be tightened.

Suggestions

  • Add 2-3 concrete code examples showing implementation of key techniques (e.g., a CSS animation pattern, a typography pairing with actual font-face declarations, a color system with CSS variables)
  • Include a validation checklist or review criteria to verify the output achieves the intended aesthetic quality before delivery
  • Consider extracting detailed aesthetic guidelines (font recommendations, color theory, animation patterns) into a separate reference file to keep the main skill focused on workflow
DimensionScoreReasoning

Conciseness

2/3

The content is reasonably efficient but includes some unnecessary elaboration, particularly in the design philosophy sections. Phrases like 'Claude is capable of extraordinary creative work' and repeated emphasis on avoiding 'AI slop' could be trimmed without losing actionable value.

Actionability

2/3

Provides good conceptual guidance and specific aesthetic principles (typography, color, motion) but lacks concrete code examples. No executable snippets showing how to implement the described techniques - just descriptions of what to do rather than how to do it.

Workflow Clarity

2/3

Has a clear two-phase structure (Design Thinking → Implementation) but lacks explicit validation checkpoints. No guidance on how to verify the output meets quality standards or iterate on designs that don't achieve the intended aesthetic.

Progressive Disclosure

2/3

Content is reasonably organized with clear sections, but everything is inline in one file. Could benefit from separating detailed aesthetic guidelines, font recommendations, or example implementations into referenced files for different use cases.

Activation

Suggestions 2

Score

67%

Overall Assessment

The description has a clear structure with explicit 'Use when' guidance, which is a strength. However, it lacks specific concrete actions beyond 'generates code' and misses many natural trigger terms users would employ when requesting frontend work. The distinctiveness relies on qualitative claims ('high design quality', 'polished') rather than concrete differentiators.

Suggestions

  • Add more specific concrete actions like 'create responsive layouts, implement animations, design forms, build navigation menus' to improve specificity.
  • Expand trigger terms to include common variations: 'UI', 'website', 'HTML/CSS', 'landing page', 'dashboard', 'React component', '.html files'.
DimensionScoreReasoning

Specificity

2/3

Names the domain (frontend interfaces) and mentions some actions (build web components, pages, applications, generates code), but lacks comprehensive specific actions like 'create responsive layouts, implement animations, style forms'.

Completeness

3/3

Clearly answers both what ('Create distinctive, production-grade frontend interfaces') and when ('Use this skill when the user asks to build web components, pages, or applications') with explicit trigger guidance.

Trigger Term Quality

2/3

Includes some relevant keywords ('web components', 'pages', 'applications', 'frontend') but misses common variations users would say like 'UI', 'website', 'HTML', 'CSS', 'React', 'landing page', or 'dashboard'.

Distinctiveness Conflict Risk

2/3

The focus on 'high design quality' and avoiding 'generic AI aesthetics' provides some distinction, but 'web components, pages, or applications' could overlap with general coding skills or other frontend-related skills.