Figma Designer

Figma Designer

"Transform Figma designs into implementation-ready specifications with pixel-perfect accuracy"

Overview

This skill analyzes Figma designs through the available Figma integration and produces design evidence. prd-planner owns product requirements and technical PRD methodology; this skill supplies visual facts and unresolved design gaps.

Prerequisites

Figma MCP Server

Ensure the host exposes a Figma MCP server or plugin before using this skill. Tool names vary by host and plugin version, so inspect the available Figma tools in the current session instead of assuming fixed names. The required capability set is:

• Read file or page metadata
• Read selected nodes or node details
• Read component and style information when available

When This Skill Activates

Activates when you:

• Provide a Figma link (https://www.figma.com/file/...)
• Upload a design screenshot and mention "Figma"
• Say "analyze this design" or "extract design specs"
• Ask to "create PRD from Figma"

Design Analysis Workflow

Phase 1: Fetch Design Data

Input: Figma URL or File Key
  ↓
Extract File Key from URL
  ↓
Call the available Figma metadata tool
  ↓
Call the available Figma node/detail tool
  ↓
Parse frame, component, and text nodes

Phase 2: Extract Design Tokens

Create a comprehensive design token inventory:

// Design Token Structure
interface DesignTokens {
  colors: {
    primary: string[];
    secondary: string[];
    neutral: string[];
    semantic: {
      success: string;
      warning: string;
      error: string;
      info: string;
    };
  };
  typography: {
    fontFamilies: Record<string, string>;
    fontSizes: Record<string, number>;
    fontWeights: Record<string, number>;
    lineHeights: Record<string, number>;
    letterSpacing: Record<string, number>;
  };
  spacing: {
    scale: number;  // 4, 8, 12, 16, etc.
    values: Record<string, number>;
  };
  borders: {
    radii: Record<string, number>;
    widths: Record<string, number>;
  };
  shadows: Array<{
    name: string;
    values: string[];
  }>;
}

Phase 3: Analyze Component Hierarchy

File
├── Frames (Pages/Screens)
│   ├── Component Instances
│   │   ├── Primary Button
│   │   ├── Input Field
│   │   └── Card
│   └── Text Layers
│       ├── Headings
│       ├── Body
│       └── Labels

For each component, extract:

• Props: Size, variant, state
• Layout: Flex direction, alignment, gap, padding
• Styles: Fill, stroke, effects
• Content: Text content, icons, images
• Constraints: Responsive behavior

Phase 4: Generate Visual Specifications

Use this template for each screen:

## Screen: [Screen Name]

### Layout Structure

┌─────────────────────────────────────────┐ │ [Header/Nav] │ ├─────────────────────────────────────────┤ │ │ │ [Main Content] │ │ ┌───────────┐ ┌───────────┐ │ │ │ Card 1 │ │ Card 2 │ │ │ └───────────┘ └───────────┘ │ │ │ ├─────────────────────────────────────────┤ │ [Footer] │ └─────────────────────────────────────────┘

### Design Specifications

#### Colors

| Token | Value | Usage |
|-------|-------|-------|
| Primary | `#007AFF` | Primary buttons, links |
| Background | `#FFFFFF` | Screen background |
| Surface | `#F5F5F7` | Cards, sections |
| Text Primary | `#1C1C1E` | Headings, body |
| Text Secondary | `#8E8E93` | Captions, labels |

#### Typography

| Style | Font | Size | Weight | Line Height | Letter Spacing |
|-------|------|------|--------|------------|---------------|
| Display Large | SF Pro Display | 28px | Bold (700) | 34px | -0.5px |
| Heading 1 | SF Pro Display | 24px | Bold (700) | 32px | -0.3px |
| Heading 2 | SF Pro Display | 20px | Semibold (600) | 28px | -0.2px |
| Body Large | SF Pro Text | 17px | Regular (400) | 24px | -0.4px |
| Body | SF Pro Text | 15px | Regular (400) | 22px | -0.3px |
| Caption | SF Pro Text | 13px | Regular (400) | 18px | -0.1px |

#### Spacing

| Token | Value | Usage |
|-------|-------|-------|
| xs | 4px | Icon padding |
| sm | 8px | Tight spacing |
| md | 12px | Card padding |
| lg | 16px | Section spacing |
| xl | 24px | Large gaps |
| 2xl | 32px | Page margins |

#### Component: Primary Button

interface PrimaryButtonProps { size?: 'small' | 'medium' | 'large'; variant?: 'primary' | 'secondary' | 'tertiary'; disabled?: boolean; }

// Sizes size.small = { height: 32px, paddingHorizontal: 12px, fontSize: 15, iconSize: 16, }

size.medium = { height: 40px, paddingHorizontal: 16px, fontSize: 15, iconSize: 20, }

size.large = { height: 48px, paddingHorizontal: 24px, fontSize: 17, iconSize: 24, }

// Variants variant.primary = { backgroundColor: '#007AFF', color: '#FFFFFF', }

variant.secondary = { backgroundColor: '#F5F5F7', color: '#007AFF', }

variant.tertiary = { backgroundColor: 'transparent', color: '#007AFF', }

#### Constraints & Responsive Behavior

| Element | Constraints | Responsive Behavior |
|---------|-------------|---------------------|
| Header | Left, Right, Top | Sticky on scroll |
| Sidebar | Left, Top, Bottom | Collapses to drawer on mobile |
| Content | Left, Right (16px) | Full width on mobile |

### Interaction States

| Element | Default | Hover | Pressed | Disabled |
|---------|---------|-------|--------|----------|
| Primary Button | opacity: 1 | opacity: 0.8 | opacity: 0.6 | opacity: 0.4 |
| Icon Button | opacity: 1 | background: rgba(0,0,0,0.05) | background: rgba(0,0,0,0.1) | opacity: 0.3 |
| Card | shadow: sm | shadow: md | - | opacity: 0.6 |

Output Formats

Option 1: Visual Spec Document (Default)

Generates a design specification document:

docs/{feature}-design-spec.md

Option 2: PRD Evidence Pack

Provide screen intent, design tokens, component states, responsive rules, accessibility observations, and open product questions as inputs to prd-planner. Do not invent business requirements from visual design alone.

Quick Reference: Design Token Categories

Always Extract These

Design Review Checklist

Before generating design evidence, verify:

• [ ] All screens are accounted for
• [ ] Design tokens are extracted
• [ ] Component variants are documented
• [ ] Responsive behavior is specified
• [ ] Interaction states are defined
• [ ] Accessibility (WCAG) is considered
• [ ] Color contrast ratio ≥ 4.5:1
• [ ] Touch targets ≥ 44x44px
• [ ] Focus indicators visible

Frame Analysis Template

For each frame/screen in the Figma file:

## Frame: {Frame Name}

### Purpose
{What this screen does}

### Elements

| Element | Type | Styles | Props |
|---------|------|--------|-------|
| {Name} | {Component/Text/Vector} | {css} | {props} |
| {Name} | {Component/Text/Vector} | {css} | {props} |

### Layout
- Container: {width, height, fill}
- Position: {absolute/relative}
- Constraints: {left, right, top, bottom}
- Auto Layout: {direction, spacing, padding, alignment}

### Content Hierarchy
1. {Primary element}
2. {Secondary element}
3. {Tertiary element}

### Notes
{Any special considerations}

Integration with Other Skills

Typical Workflow

Figma URL → figma-designer → Visual Specs
                                ↓