design-handoff

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

> If you see unfamiliar placeholders or need to check which tools are connected, see [CONNECTORS.md](../../CONNECTORS.md).

Generate comprehensive developer handoff documentation from a design.

Usage

/design-handoff $ARGUMENTS

Generate handoff specs for: @$1

If a Figma URL is provided, pull the design from Figma. 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 Connectors Available

If ~~design tool is connected:

Pull exact measurements, tokens, and component specs from Figma
Export assets and generate a complete spec sheet

If ~~project tracker is connected:

Link the handoff to the implementation ticket
Create sub-tasks for each section of the spec

Tips

Share the Figma link — I can pull exact measurements, tokens, and component info.
Mention edge cases — "What happens with 100 items?" helps me spec boundary conditions.
Specify the tech stack — "We use React + Tailwind" helps me give relevant implementation notes.

Cómo instalarla en Claude

Instrucciones completas (SKILL.md)