name: ascii-preview-generator
description: >
Generate visual previews of user interfaces, layouts, and UI components
using ASCII characters. Includes an escalation path to richer formats.
Visual Preview Rule
Use ASCII diagrams for UI/UX previews when:
- User asks "how does it look", "preview", "mockup", or similar
- A visual representation helps clarify layout/structure
Guidelines:
- Use simple box-drawing chars (┌─┐│└─┘)
- For complex diagrams, prefer Mermaid syntax
- For tabular data, use Markdown tables instead
- For formal deliverables, suggest external tools (Figma, Excalidraw) and offer to describe the layout
Do NOT use ASCII for:
- Data visualizations (charts, graphs)
- Content requiring color or interactivity
- Mobile-first contexts where width is constrained