| name | frontend-design |
| description | Create distinctive, production-grade frontend interfaces with high design quality. Automatically applies Impeccable design intelligence — typography, color, layout, motion, critique, and polish. Use this skill when the user asks to build, redesign, critique, audit, or polish web components, pages, or applications. |
This skill embeds Impeccable (impeccable.style) design intelligence. When doing frontend design work, automatically load the impeccable skill via the skill tool to access deep reference files for typography, color, motion, spatial design, interaction, responsive, UX writing, and all 23 design command references.
Core Design Principles (Apply Automatically)
Color
- Use OKLCH. Reduce chroma as lightness approaches 0 or 100.
- Never use
#000 or #fff. Tint every neutral toward the brand hue (chroma 0.005–0.01).
- Pick a color strategy: Restrained (tinted neutrals + ≤10% accent), Committed (one color carries 30–60%), Full palette (3–4 named roles), or Drenched (the surface IS the color).
- Name your instinctive first three palette choices; reject all three before committing.
Typography
- Cap body line length at 65–75ch.
- ≥1.25 ratio between hierarchy steps. Avoid flat scales.
- Avoid overused fonts: Inter, Roboto, Arial, Fraunces, Geist, Plus Jakarta Sans, Space Grotesk, Recoleta, Instrument Sans.
- Prefer distinctive display fonts + refined body pairings.
Layout
- Vary spacing for rhythm. Same padding everywhere is monotony.
- Cards are the lazy answer. Use only when they're truly the best affordance. Nested cards are always wrong.
- Don't wrap everything in a container. Most things don't need one.
Motion
- Don't animate CSS layout properties.
- Ease out with exponential curves (ease-out-quart / quint / expo). No bounce, no elastic.
- 150ms for hover/focus, 300ms for toggles/reveals, 500ms for page transitions.
Absolute Bans (AI Slop Prevention)
- Side-stripe borders:
border-left/right >1px as colored accent — never intentional.
- Gradient text:
background-clip: text with gradient — decorative, never meaningful.
- Glassmorphism as default — rare and purposeful, or nothing.
- Hero-metric template: big number, small label, supporting stats, gradient accent. SaaS cliché.
- Identical card grids: same-sized cards with icon + heading + text, endlessly.
- Modal as first thought — exhaust inline/progressive alternatives first.
- Italic serif display heroes: oversized italic serif as primary h1 (late-2025 AI fingerprint).
- Hero eyebrow chips: uppercase letter-spaced label sitting directly above h1.
Copy
- Every word earns its place. No restated headings, no intros that repeat the title.
- No em dashes. Use commas, colons, semicolons, periods, or parentheses.
Register Awareness
Every design task is either brand (marketing, landing, portfolio: design IS the product) or product (app UI, dashboard, tools: design SERVES the product). Identify before designing. Brand work needs bolder choices; product work needs clarity and efficiency.
Design Thinking
Before coding, understand:
- Purpose: What problem does this interface solve? Who uses it?
- Tone: Pick a BOLD aesthetic direction (brutally minimal, maximalist chaos, retro-futuristic, editorial/magazine, etc.)
- Constraints: Technical requirements (framework, performance, accessibility)
- Differentiation: What makes this UNFORGETTABLE?
Then implement working code that is:
- Production-grade and functional
- Visually striking and memorable
- Cohesive with a clear aesthetic point-of-view
- Meticulously refined in every detail
Aesthetics Guidelines
- Typography: Choose distinctive, unexpected fonts. Avoid AI-overused fonts.
- Color & Theme: Commit to a cohesive aesthetic. Use CSS variables in OKLCH.
- Motion: Purposeful animations, staggered reveals, scroll-triggering, surprising hover states.
- Spatial Composition: Unexpected layouts. Asymmetry. Overlap. Grid-breaking. Generous whitespace.
- Backgrounds: Gradient meshes, noise textures, geometric patterns, layered transparencies.
Never converge on common choices across generations. Vary between light and dark themes, different fonts, different aesthetics.
Loading Impeccable Reference Files
When the task involves any of these, load the corresponding reference via the skill tool:
| Task | Reference File |
|---|
| Typography fixes | impeccable skill (loads typography.md) |
| Color decisions | impeccable skill (loads color-and-contrast.md) |
| Motion/animation | impeccable skill (loads motion-design.md) |
| Layout/spacing | impeccable skill (loads spatial-design.md) |
| UX copy | impeccable skill (loads ux-writing.md) |
| Responsive | impeccable skill (loads responsive-design.md) |
| Interaction design | impeccable skill (loads interaction-design.md) |
| Full critique | impeccable skill (loads critique.md, personas.md, heuristics-scoring.md) |
| Production polish | impeccable skill (loads polish.md) |
| Brand work | impeccable skill (loads brand.md) |
| Product UI | impeccable skill (loads product.md) |
