skills/ HoangNguyen0403/agent-skills-standard

common-ui-design

Design distinctive, production-grade frontend UI with bold aesthetic choices. Use when building web components, pages, interfaces, dashboards, or applications in any framework (React, Next.js, Angular, Vue, HTML/CSS).

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UI Design Direction

Priority: P0 (CRITICAL)

Before writing any code, commit to deliberate aesthetic direction.

Phase 0: Design Thinking (Mandatory Pre-Code)

Answer these before touching implementation:

  1. Purpose: What problem this UI solve? Who uses it?
  2. Tone: Pick one extreme and commit — brutally minimal | maximalist | retro-futuristic | editorial/magazine | luxury/refined | brutalist/raw | playful/toy-like | organic/natural | art deco | industrial/utilitarian
  3. Differentiation: Name one thing user will remember about this interface.

Bold maximalism and refined minimalism both work — intentionality, not intensity, key.

Aesthetic Dimensions

Typography

  • Pair distinctive display font + refined body font; never default to system fonts.
  • Self-host via next/font, @font-face, or Google Fonts API — never CDN <link> in production.
  • See Font Pairing & Tone Examples

Color & Theme

  • Dominant color + sharp accent > timid, evenly-distributed palettes.
  • Use CSS custom properties (--color-primary, --color-accent) for consistency.
  • Commit: dark or light — don't default to light because it feels "safe".

Motion

  • One well-orchestrated entrance (staggered reveals, animation-delay) > scattered micro-interactions.
  • CSS-first: @keyframes, transition, animation-delay; React: Motion library for complex sequences.
  • See Motion Patterns

Spatial Composition

  • Break grid intentionally: asymmetry, overlap, diagonal flow, grid-breaking elements.
  • Generous negative space OR controlled density — never accidental middleground.

Backgrounds & Depth

  • Create atmosphere: gradient meshes, noise textures, layered transparencies, grain overlays.
  • Dramatic shadows and decorative borders should match chosen tone.
  • Solid white/gray backgrounds = missed creative opportunity.

Anti-Patterns

  • No generic font defaults: Inter/Roboto/Arial/system-ui produce forgettable UIs; choose characterful fonts.
  • No purple-gradient-on-white: Most overused AI aesthetic; commit to something context-specific.
  • No scattered animations: One orchestrated entrance beats ten random hover effects.
  • No accidental layouts: Every spacing and positioning decision must serve aesthetic intent.
  • No same aesthetic twice: Vary light/dark, font style, tone — never converge on single style.

References

Canonical response anchors

When this skill applies, preserve the following domain terminology or equivalent concrete examples in the answer when relevant:

  • aesthetic

  • Additional task-grounded exact anchors: typography

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