figma-design-handoff

What this skill does

# Figma Design Handoff

Figma dominates design tooling in 2026, with the majority of product teams using it as their primary design tool. A structured handoff workflow eliminates design drift — the gap between what designers create and what developers build. This skill covers the full pipeline: Figma Variables to design tokens, component spec extraction, Dev Mode inspection, Auto Layout to CSS mapping, and visual regression testing.

## Quick Reference

| Rule | File | Impact | When to Use |
|------|------|--------|-------------|
| Figma Variables & Tokens | `rules/figma-variables-tokens.md` | CRITICAL | Converting Figma Variables to W3C design tokens JSON |
| Component Specs | `rules/figma-component-specs.md` | HIGH | Extracting component props, variants, states from Figma |
| Dev Mode Inspection | `rules/figma-dev-mode.md` | HIGH | Measurements, spacing, typography, asset export |
| Auto Layout → CSS | `rules/figma-auto-layout.md` | HIGH | Mapping Auto Layout to Flexbox/Grid |
| Visual Regression | `rules/figma-visual-regression.md` | MEDIUM | Comparing production UI against Figma designs |

**Total: 5 rules across 1 category**

## Figma Dev Mode MCP Server (2026 default path)

The Figma Dev Mode MCP Server replaces most manual REST + Dev Mode inspection. Configure it once and any Claude Code session with Figma access can pull design context, tokens, and code mappings directly.

Key tools (16 documented — `developers.figma.com/docs/figma-mcp-server/tools-and-prompts`):

| Tool | Returns | Use for |
|------|---------|---------|
| `get_design_context` | Component tree + layout + typography + spacing | First call on any Figma node → grounds every other tool |
| `get_variable_defs` | Token collections (variables + modes + aliases) | Straight export to W3C DTCG JSON — skip the REST pipeline |
| `get_code_connect_map` | Figma node → codebase component mapping | Linking generated code to existing repo components |
| `get_screenshot` | PNG of a node or frame | Screenshot for visual diffing / embed in chat |
| `search_design_system` | Token/component search across libraries | Finding existing tokens before generating new ones |
| `use_figma` *(beta)* | Writes back to the Figma canvas | Code-to-design round-trip (write-to-canvas) |
| `generate_figma_design` *(beta)* | Creates a design frame from a prompt | AI-generated design stubs for handoff |

**Install**: Enable in the Figma desktop app under *Preferences → Dev Mode MCP Server*, or use the remote MCP endpoint (no desktop required for read tools). Pair with **Code Connect UI** (GA 2026) to map Figma node IDs → codebase components without manual JSON wiring.

```jsonc
// .claude/mcp-servers/figma.json — sample config
{
  "figma": {
    "command": "figma-mcp",
    "args": ["--mode=dev"],
    "env": { "FIGMA_ACCESS_TOKEN": "${FIGMA_TOKEN}" }
  }
}
```

## Quick Start

```bash
# 1. Export Figma Variables → tokens.json (using Figma REST API)
curl -s -H "X-Figma-Token: $FIGMA_TOKEN" \
  "https://api.figma.com/v1/files/$FILE_KEY/variables/local" \
  | node scripts/figma-to-w3c-tokens.js > tokens/figma-raw.json

# 2. Transform with Style Dictionary
npx style-dictionary build --config sd.config.js

# 3. Output: CSS custom properties + Tailwind theme
# tokens/
#   figma-raw.json        ← W3C Design Tokens format
#   css/variables.css     ← --color-primary: oklch(0.65 0.15 250);
#   tailwind/theme.js     ← module.exports = { colors: { primary: ... } }
```

```json
// W3C Design Tokens Format (DTCG)
{
  "color": {
    "primary": {
      "$type": "color",
      "$value": "{color.blue.600}",
      "$description": "Primary brand color"
    },
    "surface": {
      "$type": "color",
      "$value": "{color.neutral.50}",
      "$extensions": {
        "mode": {
          "dark": "{color.neutral.900}"
        }
      }
    }
  }
}
```

```typescript
// Style Dictionary config for Figma Variables
import StyleDictionary from 'style-dictionary';

export default {
  source: ['tokens/figma-raw.json'],
  platforms: {
    css: {
      transformGroup: 'css',
      buildPath: 'tokens/css/',
      files: [{ destination: 'variables.css', format: 'css/variables' }],
    },
    tailwind: {
      transformGroup: 'js',
      buildPath: 'tokens/tailwind/',
      files: [{ destination: 'theme.js', format: 'javascript/module' }],
    },
  },
};
```

## Handoff Workflow

The design-to-code pipeline follows five stages:

1. **Design in Figma** — Designer creates components with Variables, Auto Layout, and proper naming
2. **Extract Specs** — Use Dev Mode to inspect spacing, typography, colors, and export assets
3. **Export Tokens** — Figma Variables → W3C tokens JSON via REST API or plugin
4. **Build Components** — Map Auto Layout to CSS Flexbox/Grid, apply tokens, implement variants
5. **Visual QA** — Compare production screenshots against Figma frames with Applitools

```
┌─────────────┐     ┌──────────────┐     ┌───────────────┐
│  Figma File  │────▶│  Dev Mode    │────▶│  tokens.json  │
│  (Variables, │     │  (Inspect,   │     │  (W3C DTCG    │
│  Auto Layout)│     │   Export)    │     │   format)     │
└─────────────┘     └──────────────┘     └───────┬───────┘
                                                  │
                                                  ▼
┌─────────────┐     ┌──────────────┐     ┌───────────────┐
│  Visual QA  │◀────│  Components  │◀────│ Style         │
│  (Applitools,│     │  (React +   │     │ Dictionary    │
│   Chromatic) │     │  Tailwind)   │     │ (CSS/Tailwind)│
└─────────────┘     └──────────────┘     └───────────────┘
```

## Rules

Each rule is loaded on-demand from the `rules/` directory:

<!-- load:rules/figma-variables-tokens.md -->
<!-- load:rules/figma-component-specs.md -->
<!-- load:rules/figma-dev-mode.md -->
<!-- load:rules/figma-auto-layout.md -->
<!-- load:rules/figma-visual-regression.md -->

## Auto Layout to CSS Mapping

Quick reference for the most common mappings:

| Figma Auto Layout | CSS Equivalent | Tailwind Class |
|-------------------|---------------|----------------|
| Direction: Horizontal | `flex-direction: row` | `flex-row` |
| Direction: Vertical | `flex-direction: column` | `flex-col` |
| Gap: 16 | `gap: 16px` | `gap-4` |
| Padding: 16 | `padding: 16px` | `p-4` |
| Padding: 16, 24 | `padding: 16px 24px` | `py-4 px-6` |
| Align: Center | `align-items: center` | `items-center` |
| Justify: Space between | `justify-content: space-between` | `justify-between` |
| Fill container | `flex: 1 1 0%` | `flex-1` |
| Hug contents | `width: fit-content` | `w-fit` |
| Fixed width: 200 | `width: 200px` | `w-[200px]` |
| Min width: 100 | `min-width: 100px` | `min-w-[100px]` |
| Max width: 400 | `max-width: 400px` | `max-w-[400px]` |
| Wrap | `flex-wrap: wrap` | `flex-wrap` |
| Absolute position | `position: absolute` | `absolute` |

## Visual QA Loop

```typescript
// Applitools Eyes + Figma Plugin — CI integration
import { Eyes, Target } from '@applitools/eyes-playwright';

const eyes = new Eyes();

await eyes.open(page, 'MyApp', 'Homepage — Figma Comparison');

// Capture full page
await eyes.check('Full Page', Target.window().fully());

// Capture specific component
await eyes.check(
  'Hero Section',
  Target.region('#hero').ignoreDisplacements()
);

await eyes.close();
```

The Applitools Figma Plugin overlays production screenshots on Figma frames to catch:
- Color mismatches (token not applied or wrong mode)
- Spacing drift (padding/margin deviations)
- Typography inconsistencies (font size, weight, line height)
- Missing states (hover, focus, disabled not implemented)

## Key Decisions

| Decision | Recommendation |
|----------|----------------|
| Token format | W3C Design Tokens Community Group (DTCG) JSON |
| Token pipeline | Figma REST API → Style Dictionary → CSS/Tailwind |
| Color format | OKLCH for perceptually uniform theming |
| Layout mapping | Auto Layout → CSS Flexbox (Grid for 2D layouts) |
| Visual QA tool | Applitools Eyes + Figma Plugin for design-dev diff |
| Sp