Designing Frontends

Designing Frontends

Overview

Create distinctive, production-grade frontend interfaces with high design quality. Generates creative, polished code that avoids generic AI aesthetics.

Core principle: Bold aesthetic direction + meticulous execution = unforgettable interfaces.

When to Use

Use when the user asks to:

• Build web components, pages, or applications
• Create user interfaces with strong visual identity
• Design frontend experiences that need to stand out
• Implement production-ready UI with creative direction

Design Thinking

Before coding, understand the context and commit to a BOLD aesthetic direction:

Purpose: What problem does this interface solve? Who uses it?

Tone: Pick an extreme aesthetic direction:

• Brutally minimal
• Maximalist chaos
• Retro-futuristic
• Organic/natural
• Luxury/refined
• Playful/toy-like
• Editorial/magazine
• Brutalist/raw
• Art deco/geometric
• Soft/pastel
• Industrial/utilitarian

Use these for inspiration but design one that is true to the aesthetic direction.

Constraints: Technical requirements (framework, performance, accessibility).

Differentiation: What makes this UNFORGETTABLE? What's the one thing someone will remember?

CRITICAL: Choose a clear conceptual direction and execute it with precision. Bold maximalism and refined minimalism both work - the key is intentionality, not intensity.

Implementation Requirements

Implement working code (HTML/CSS/JS, React, Vue, etc.) that is:

• Production-grade and functional
• Visually striking and memorable
• Cohesive with a clear aesthetic point-of-view
• Meticulously refined in every detail

Frontend Aesthetics Guidelines

Typography

Choose fonts that are beautiful, unique, and interesting:

• Avoid generic fonts like Arial and Inter
• Opt for distinctive choices that elevate the frontend's aesthetics
• Use unexpected, characterful font choices
• Pair a distinctive display font with a refined body font

Color & Theme

Commit to a cohesive aesthetic:

• Use CSS variables for consistency
• Dominant colors with sharp accents outperform timid, evenly-distributed palettes
• Create atmosphere and depth rather than defaulting to solid colors

Motion

Use animations for effects and micro-interactions:

• Prioritize CSS-only solutions for HTML
• Use Motion library for React when available
• Focus on high-impact moments: one well-orchestrated page load with staggered reveals (animation-delay) creates more delight than scattered micro-interactions
• Use scroll-triggering and hover states that surprise

Spatial Composition

Create unexpected layouts:

• Asymmetry
• Overlap
• Diagonal flow
• Grid-breaking elements
• Generous negative space OR controlled density

Backgrounds & Visual Details

Create atmosphere and depth:

• Add contextual effects and textures that match the overall aesthetic
• Apply creative forms:
  • Gradient meshes
  • Noise textures
  • Geometric patterns
  • Layered transparencies
  • Dramatic shadows
  • Decorative borders
  • Custom cursors
  • Grain overlays

Anti-Patterns

NEVER use generic AI-generated aesthetics:

❌ Avoid:

• Overused font families (Inter, Roboto, Arial, system fonts)
• Cliched color schemes (particularly purple gradients on white backgrounds)
• Predictable layouts and component patterns
• Cookie-cutter design that lacks context-specific character

✅ Instead:

• Interpret creatively and make unexpected choices that feel genuinely designed for the context
• No design should be the same
• Vary between light and dark themes, different fonts, different aesthetics
• NEVER converge on common choices (Space Grotesk, for example) across generations

Execution Principle

IMPORTANT: Match implementation complexity to the aesthetic vision.

Maximalist designs need:

• Elaborate code with extensive animations and effects
• Rich visual details and layered elements
• Complex interactions and micro-animations

Minimalist or refined designs need:

• Restraint and precision
• Careful attention to spacing, typography, and subtle details
• Elegance through executing the vision well

The Bottom Line

Claude is capable of extraordinary creative work. Don't hold back, show what can truly be created when thinking outside the box and committing fully to a distinctive vision.

Every interface should be memorable, intentional, and executed with precision.