| name | design-handoff |
| description | Generate developer handoff specs from a design. Use when a design is ready for engineering and needs a spec sheet covering layout, design tokens, component props, interaction states, responsive breakpoints, edge cases, and animation details. |
Design Handoff
Generate comprehensive developer handoff documentation from a design.
Usage
Take whatever the user provides — a Figma URL, a design description, or a screenshot — and generate handoff specs for it.
If a Figma URL is provided and a Figma tool (MCP or connector) is available, pull the design from Figma directly. Otherwise, work from the provided description or screenshot.
What to Include
Visual Specifications
- Exact measurements (padding, margins, widths)
- Design token references (colors, typography, spacing)
- Responsive breakpoints and behavior
- Component variants and states
Interaction Specifications
- Click/tap behavior
- Hover states
- Transitions and animations (duration, easing)
- Gesture support (swipe, pinch, long-press)
Content Specifications
- Character limits
- Truncation behavior
- Empty states
- Loading states
- Error states
Edge Cases
- Minimum/maximum content
- International text (longer strings)
- Slow connections
- Missing data
Accessibility
- Focus order
- ARIA labels and roles
- Keyboard interactions
- Screen reader announcements
Principles
- Don't assume: If it's not specified, the developer will guess. Specify everything.
- Use tokens, not values: Reference
spacing-md not 16px.
- Show all states: Default, hover, active, disabled, loading, error, empty.
- Describe the why: "This collapses on mobile because users primarily use one-handed" helps developers make good judgment calls.
Output
## Handoff Spec: [Feature/Screen Name]
### Overview
[What this screen/feature does, user context]
### Layout
[Grid system, breakpoints, responsive behavior]
### Design Tokens Used
| Token | Value | Usage |
|-------|-------|-------|
| `color-primary` | #[hex] | CTA buttons, links |
| `spacing-md` | [X]px | Between sections |
| `font-heading-lg` | [size/weight/family] | Page title |
### Components
| Component | Variant | Props | Notes |
|-----------|---------|-------|-------|
| [Component] | [Variant] | [Props] | [Special behavior] |
### States and Interactions
| Element | State | Behavior |
|---------|-------|----------|
| [CTA Button] | Hover | [Background darken 10%] |
| [CTA Button] | Loading | [Spinner, disabled] |
| [Form] | Error | [Red border, error message below] |
### Responsive Behavior
| Breakpoint | Changes |
|------------|---------|
| Desktop (>1024px) | [Default layout] |
| Tablet (768-1024px) | [What changes] |
| Mobile (<768px) | [What changes] |
### Edge Cases
- **Empty state**: [What to show when no data]
- **Long text**: [Truncation rules]
- **Loading**: [Skeleton or spinner]
- **Error**: [Error state appearance]
### Animation / Motion
| Element | Trigger | Animation | Duration | Easing |
|---------|---------|-----------|----------|--------|
| [Element] | [Trigger] | [Description] | [ms] | [easing] |
### Accessibility Notes
- [Focus order]
- [ARIA labels needed]
- [Keyboard interactions]
If Design or Project-Tracking Tools Are Available
If a Figma tool is connected (MCP server or connector):
- Pull exact measurements, tokens, and component specs from Figma
- Export assets and generate a complete spec sheet
If a project-tracker tool is connected (e.g. Linear, Jira MCP):
- Link the handoff to the implementation ticket
- Create sub-tasks for each section of the spec
Tips
- Share the Figma link: exact measurements, tokens, and component info can be pulled from it.
- Mention edge cases: "What happens with 100 items?" helps spec boundary conditions.
- Specify the tech stack: "We use React + Tailwind" enables relevant implementation notes.
