Make Interfaces Beautiful with LLMs and Skills: Prompts and Plugin Workflows

Content adapted from Datawhale Easy-Vibe, licensed under CC BY-NC-SA 4.0.

In the previous chapters, you already learned how to turn designs into code with AI IDEs and how to use component libraries to build interfaces quickly. But you may also have noticed an awkward problem: even with the same requirement, AI-generated pages often feel a bit generic. The font is always Inter, the color palette is some overused purple gradient, the layout is a perfectly symmetrical card grid, and the page gives off a strong "AI-generated" feeling.

This is not really AI's fault. The real issue is that you never told it what kind of style you wanted.

Imagine going to a hair salon. If you only say, "Give me a haircut," the stylist will probably choose something safe but forgettable. But if you say, "I want a soft Japanese-style layered wave, curtain bangs, shoulder length, and strong texture," you are much more likely to get exactly what you want.

The same is true for AI. It needs a clear aesthetic direction before it can generate a beautiful and distinctive interface.

This chapter introduces two practical ways to make AI-generated interfaces look much better:

1. Well-designed prompt templates so you can describe the exact aesthetic you want
2. Frontend Skills plugins so AI automatically loads reusable design rules

What you will learn

1. Why AI-generated interfaces often look "normal" by default
2. How to describe a design style through 5 dimensions: typography, color, layout, motion, and details
3. How to use 3 helpful Skills plugins for UI beautification
4. How to generate better-looking interfaces through prompts + Skills across three practical scenarios

1. Why do AI-generated interfaces look "ordinary" by default?

AI was trained on massive amounts of frontend code, and most of that code uses safe, highly repeated choices:

Each of these choices is fine on its own. But once every AI-generated page uses all of them, they start to feel generic and interchangeable.

💡 Key insight: AI can design, but by default it gravitates toward the statistical average. Your job is to tell it how to move away from that average.

2. Method One: describe style through prompts

2.1 The 5 dimensions of design style

To generate a visually strong interface, describe what you want across these five dimensions:

2.2 Seeing the difference: generic prompt vs aesthetic prompt

Let's compare two prompts for the same landing page.

Generic prompt:

Please build a landing page for an AI writing assistant. Include a navbar, hero section, feature section, pricing section, and footer.

Beautified prompt:

Please build a landing page for an AI writing assistant with the following style requirements:

**Aesthetic style: Neubrutalism**

**Typography:**
- Headings: Space Grotesk, weight 700-900
- Body: IBM Plex Sans, weight 400

**Colors:**
- Primary: #000000
- Accent: #FF6B00
- Background: #FFFDF0
- Borders: 3px solid black

**Layout:**
- Asymmetrical composition
- Bold black dividers between regions
- Cards with hard shadows (box-shadow: 8px 8px 0px #000)
- Strong contrast through generous whitespace

**Motion:**
- Elements pop in from below on page load
- Buttons shift upward by 2px on hover

**Details:**
- All corners set to 0px
- Buttons should feel strongly 3D
- Add subtle grain texture to the background

The second prompt gives AI enough direction to produce something bold and memorable instead of something merely functional.

2.3 A resource list of frontend beautification Skills

You do not need to invent every style prompt from scratch. Here are some useful resources:

💡 For more style prompts, see the Appendix: Style Prompt Cheatsheet.

2.5 Three reliable style templates

Here are three proven templates you can copy and adapt directly.

Template 1: Minimalism

**Aesthetic style: Minimalism**

**Typography:**
- Headings: PP Neue Montreal, weight 500-700
- Body: Inter, weight 400

**Colors:**
- Primary: #FFFFFF
- Text: #1A1A1A
- Accent: #3B82F6, used sparingly

**Layout:**
- Large amounts of whitespace (minimum 64px section padding)
- One-column or two-column centered layout
- Use spacing instead of divider lines

**Motion:**
- Slow fade-in transitions (duration 600ms)
- Soft color transitions on hover

**Details:**
- Radius: 8px
- Shadows: subtle (0 4px 12px rgba(0,0,0,0.08))
- No decorative background elements

Template 2: Glassmorphism

**Aesthetic style: Glassmorphism**

**Typography:**
- Headings: Outfit, weight 600-800
- Body: Plus Jakarta Sans, weight 400-500

**Colors:**
- Background: gradient from #667eea to #764ba2
- Card background: rgba(255, 255, 255, 0.1)
- Text: #FFFFFF

**Layout:**
- Floating card design
- Slight overlap between cards

**Motion:**
- Cards appear in staggered sequence on page load
- Cards scale to 1.05x on hover

**Details:**
- Radius: 20px
- Blur: backdrop-blur-xl
- Border: 1px rgba(255, 255, 255, 0.2)
- Subtle glow effects

Template 3: Bento Grid

**Aesthetic style: Bento Grid**

**Typography:**
- Headings: SF Pro Display, weight 700
- Body: SF Pro Text, weight 400

**Colors:**
- Background: #F5F5F7
- Cards: #FFFFFF
- Accent: #0071E3

**Layout:**
- Grid-based composition with mixed card sizes
- 16px gaps
- 24px radius

**Motion:**
- Subtle hover lift
- Press feedback on click

**Details:**
- Large cards for primary content
- Smaller cards for secondary info
- Use icons to replace some text
- Clean shadows (0 4px 24px rgba(0,0,0,0.06))

3. Method Two: use Skills plugins to load design rules automatically

Writing style prompts by hand every time is tiring. Skills are reusable design-rule packages that can be installed once and applied repeatedly.

3.1 Three Skills that make interfaces look better

3.2 Install UI/UX Pro Max

UI/UX Pro Max is one of the most complete design-rule Skills packages available. It includes:

• 67 UI styles: Glassmorphism, Neumorphism, Brutalism, Bento Grid, and more
• 96 color systems: organized by product type, such as SaaS, e-commerce, and social apps
• 57 font pairings: validated combinations from professional designers
• 100+ design rules: spacing, corner radius, shadows, and more

Installation steps:

# 1. Install the CLI globally
npm install -g uipro-cli

# 2. Initialize it for your AI tool
uipro init --ai claude
# or
uipro init --ai cursor
# or
uipro init --ai trae

After installation, you can simply say:

Use UI/UX Pro Max's Glassmorphism style to build me a landing page for an AI writing assistant.

The AI will then automatically apply the matching typography, color, and layout conventions.

3.3 Install Anthropic's official frontend-design Skill

This is Anthropic's official frontend design Skill, focused specifically on preventing generic AI output:

# Run in Claude Code
npx skills add anthropics/skills/frontend-design

After installation, the AI will tend to avoid:

• ❌ Inter, Roboto, Arial
• ❌ Purple gradient backgrounds
• ❌ Symmetrical grid layouts
• ❌ Overly soft shadows

And it will instead lean toward:

• ✅ More distinctive font combinations
• ✅ Strong primary colors with sharper accents
• ✅ Asymmetrical or overlapping layouts
• ✅ More textured backgrounds such as grain and geometry

4. Practical scenario one: redesign a landing page with aesthetic prompts

Let's take what we just learned and turn a very ordinary landing page into a much more attractive one.

4.1 The plain version

Start by seeing what AI gives you with a generic prompt:

Please build a landing page for a pet adoption platform. Include:
- a navbar (logo, links, sign-up button)
- a hero section (headline, subheadline, CTA button, pet image)
- a pet gallery (three pet cards)
- an about-us section
- a footer

The result will probably work, but it will feel pretty average.

4.2 The improved version

Now add style guidance:

Please build a landing page for a pet adoption platform with the following design requirements:

**Aesthetic style: warm, soft, with a hand-drawn feeling**

**Typography:**
- Headings: Nunito, weight 700-800
- Body: Nunito, weight 400-600

**Colors:**
- Primary: #FFB347
- Secondary: #FFCCB3
- Background: #FFF8F0
- Text: #5D4037

**Layout:**
- Rounded cards (border-radius: 24px)
- Slightly tilted cards at different angles
- Floating and overlapping elements

**Motion:**
- Elements slide in from both sides on page load
- Pet cards slightly rotate on hover like an animal tilting its head
- Buttons bounce on hover

**Details:**
- Use 16-24px radii throughout
- Warm soft shadows (0 8px 24px rgba(255,179,71,0.3))
- Add paw-print decorations in the background
- Use irregular image crops via clip-path
- Use outline-style hand-drawn icons

That version will generate a much warmer, more emotionally convincing interface.

5. Practical scenario two: generate dashboards quickly with Skills

Skills are especially useful for admin dashboards and internal systems where many pages share the same design language.

5.1 Using UI/UX Pro Max

Use UI/UX Pro Max's Dashboard Dark style and build a dashboard page for a SaaS admin panel that includes:

**Top:** Four stats cards (users, active users, revenue, API calls)

**Middle:**
- Left: 7-day user growth line chart
- Right: subscription plan distribution pie chart

**Bottom:** a recent activity list showing time, user, and action

The Skill will automatically apply a consistent dashboard look:

• dark gray backgrounds such as #1A1A2E
• high-contrast cards like #16213E
• bright data colors such as blue, green, and orange
• floating cards with mild glassmorphism effects

5.2 Using frontend-design

Use the frontend-design skill and build a homepage for a personal blog. Make it distinctive and full of personality.

The AI will typically choose a more specific aesthetic direction, such as retro-futurism or editorial magazine style, and implement it with typography, color, and layout decisions that break out of generic patterns.

6. Practical scenario three: create your own design system Skill

If your product already has a fixed brand style, you can create your own Skill so every AI-generated page automatically follows it.

6.1 Create the Skill file

Create .claude/skills/my-brand/SKILL.md in your project:

---
name: my-brand
description: My project's custom design system, ensuring every UI follows a consistent visual language
---

# My Project Design System

## Brand Colors
- Primary: #6366F1 (Indigo 500)
- Secondary: #8B5CF6 (Violet 500)
- Success: #10B981
- Warning: #F59E0B
- Error: #EF4444
- Background: #F9FAFB
- Card: #FFFFFF

## Typography
- Headings: Plus Jakarta Sans
  - H1: 700, 48px
  - H2: 600, 36px
  - H3: 600, 24px
- Body: Inter
  - Body: 400, 16px
  - Small: 400, 14px

## Spacing
- Base unit: 4px
- Component padding: 8px / 12px / 16px
- Section spacing: 24px / 32px / 48px
- Page margin: 64px

## Radius
- Buttons: 8px
- Cards: 12px
- Inputs: 8px
- Modals: 16px

## Shadows
- Small: 0 1px 3px rgba(0,0,0,0.1)
- Medium: 0 4px 12px rgba(0,0,0,0.1)
- Large: 0 8px 24px rgba(0,0,0,0.12)

## Motion
- Transition duration: 150ms / 300ms
- Easing: cubic-bezier(0.4, 0, 0.2, 1)
- Hover effect: slight scale-up (scale-105)

## Forbidden Styles
- Do not use purple gradient backgrounds
- Do not use fonts other than Inter for body text
- Do not use radii larger than 16px
- Do not use pure black (#000000); use #1F2937 instead

6.2 Use your custom Skill

After creating it, you can simply say:

Use my-brand skill to build me a user settings page.

The AI will automatically apply your colors, fonts, spacing system, and other design constraints.

7. Summary

There are two main ways to make AI generate better-looking interfaces:

Suggested vibe-coding workflow:

1. Exploration phase: try different prompt styles to find an aesthetic direction you like
2. After choosing a style: install the matching Skill, such as UI/UX Pro Max or frontend-design
3. For brand-driven products: build your own Skill so the entire project stays visually consistent

Practice

Try one of the following:

1. Redesign one of your previous projects with a stronger visual style using prompt-based design instructions
2. Install UI/UX Pro Max and use one of its styles to generate a new page
3. Create your own design-system Skill with your preferred colors and typography

Appendix: style cheatsheet

Appendix: Skills install cheatsheet

# UI/UX Pro Max
npm install -g uipro-cli
uipro init --ai claude

# Anthropic frontend-design
npx skills add anthropics/skills/frontend-design

# Anthropic brand-guidelines
npx skills add anthropics/skills/brand-guidelines

# Check installed Skills in Claude Code
/help

Appendix: recommended color systems

Appendix: style prompt cheatsheet {#style-prompts}

Useful visual directions you can try when prompting for better frontend interfaces:

Style categories