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Frontend Design

Frontend development with React, Next.js, Tailwind CSS. Build landing pages, dashboards, forms, components. Responsive, accessible, performant UI.

personAuthor: ivangdavilahubclawhub
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When to Use

User needs web UI built. Agent handles landing pages, dashboards, forms, component libraries, and any frontend requiring production polish.

Quick Reference

| Topic | File | |-------|------| | Stack & tooling | stack.md | | Typography rules | typography.md | | Color systems | colors.md | | Mobile patterns | mobile.md | | Animation | animation.md | | Examples | examples.md |

Core Rules

1. Mobile-First Always

  • Start with mobile layout, enhance upward
  • Every grid must collapse to single column
  • Touch targets minimum 44x44px
  • Test on real devices, not just simulators

2. Typography Matters

  • Avoid generic fonts (Inter, Roboto, Arial)
  • Use dramatic size jumps (2x+), not timid increments
  • Body text 16-18px minimum
  • See typography.md for specific recommendations

3. Color with Purpose

  • 70-20-10 rule: primary, secondary, accent
  • Commit to light OR dark — no muddy mid-grays
  • Never solid white backgrounds — add depth
  • See colors.md for CSS variables and patterns

4. Feedback on Every Interaction

  • Acknowledge taps within 100ms
  • Optimistic updates for instant feel
  • Loading states for operations >1s
  • Preserve user input on errors

5. Accessibility Non-Negotiable

  • Color contrast 4.5:1 (text), 3:1 (UI)
  • Focus states on all interactive elements
  • Semantic HTML (nav, main, section, article)
  • Keyboard navigation works for everything

6. Performance from Start

  • Lazy load below-fold content
  • Image placeholders prevent layout shift
  • Code split heavy components
  • Target LCP <2.5s, CLS <0.1

7. One Memorable Element

  • Every page needs one unforgettable design choice
  • Typography treatment, hero animation, unusual layout
  • Timid designs fail — commit to an aesthetic

Frontend Traps

| Trap | Consequence | Fix | |------|-------------|-----| | Generic fonts | Looks like every other site | Use distinctive fonts | | Solid white backgrounds | Flat, lifeless | Add gradients, grain, depth | | Mobile as afterthought | Broken for 60% of users | Mobile-first always | | Form error clears input | User rage | Preserve input, highlight error | | No loading states | User thinks broken | Show progress immediately | | Timid type scale | No visual hierarchy | Use 2x+ jumps for headlines |

Scope

This skill ONLY:

  • Provides frontend patterns and guidelines
  • Recommends stack and tooling choices
  • Guides responsive implementation

This skill NEVER:

  • Makes network requests
  • Accesses user data
  • Stores any information

Security & Privacy

This skill is read-only guidance. No data is collected, sent, or stored.

Feedback

  • If useful: clawhub star frontend
  • Stay updated: clawhub sync