design-prototyping

Generate 2-3 HTML prototype variants with inline CSS and DECISION.md files.

9|1|Updated Feb 1, 2026
One-click install
npx skills add https://github.com/calcosmic/Aether --skill design-prototyping
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: design-prototyping
Source: https://github.com/calcosmic/Aether/tree/main/.aether/skills-codex/colony/design-prototyping
Command: npx skills add https://github.com/calcosmic/Aether --skill design-prototyping

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Design uncertainty in UI/UX decisions is resolved by generating throwaway visual prototypes that illuminate directions before committing to implementation.

Core Features & Use Cases

  • Generate 2-3 standalone HTML sketches that showcase different layouts, interactions, and visual treatments.
  • Align stakeholders by comparing tangible variants quickly, reducing long-cycle design debates.
  • Capture decisions in a DECISION.md to guide implementation and handoff.

Quick Start

Frame the design question and generate 2-3 standalone HTML sketch variants in sketches/design-prototyping/.

Frequently Asked Questions about design-prototyping

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate UI prototypes to compare different visual design directions?

By generating 2-3 standalone HTML files with inline CSS, this skill creates visual prototype variants that clarify different UI design directions. Each variant acts as a tangible throwaway sketch to illuminate layout and interaction options.

What is the best way to align stakeholders during exploratory UX design?

The best way to align stakeholders during exploratory UX design is by comparing tangible visual prototype variants quickly. This skill generates multiple HTML sketches to reduce long-cycle design debates and captures the final choices in a DECISION.md file.

Can I use these HTML sketch variants for both web and mobile platforms?

Yes, you can apply these HTML sketch variants to both web and mobile platforms. The skill explicitly targets UI and UX exploratory tasks where design decisions hinge on look, feel, and interaction across these platforms.

How do I document design rationale after creating visual prototypes?

To document design rationale after creating visual prototypes, the skill automatically pairs each variant set with a DECISION.md file. This file captures the design reasoning and final choices to guide implementation and handoff.

Where are the generated UI prototype files stored?

The generated UI prototype files are stored in a designated sketches directory. Each prototype variant is saved as a complete HTML file with inline CSS within the sketches/{name}/ folder structure.

Do I need any external design dependencies to create throwaway UI prototypes?

No external design dependencies are required to create throwaway UI prototypes. The skill generates complete HTML files with inline CSS, ensuring the variants are standalone and self-contained without relying on external libraries.