prototype

Create throwaway logic and UI prototypes to explore design decisions.

Updated Jul 20, 2026
One-click install
npx skills add https://github.com/brandtam/rubber-ducky --skill prototype-brandtam
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: prototype
Source: https://github.com/brandtam/rubber-ducky/tree/main/.agents/skills/prototype
Command: npx skills add https://github.com/brandtam/rubber-ducky --skill prototype-brandtam

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Create throwaway prototypes to flesh out a design before committing to it.

Core Features & Use Cases

  • Branch between logic prototypes and UI prototypes to explore different design questions.
  • One-command start and in-memory execution for rapid, low-risk experimentation.
  • Optional scripts/references/assets to extend the prototype if needed.

Quick Start

Run the prototype with a single command to start exploring your design decisions.

Frequently Asked Questions about prototype

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

FAQPage Schema
What is a throwaway prototype and when do I need one for UI design?

A throwaway prototype is a minimal, in-memory model used to flesh out design decisions before committing. You need one to explore design questions rapidly without building permanent scaffolding, allowing low-risk evaluation of different approaches.

How do I create a quick prototype to test two different design branches?

You create a quick prototype by running a single start command that executes an in-memory state machine. This lets you branch between a runnable logic prototype and a UI prototype, swapping approaches to evaluate design tradeoffs directly.

Can I use in-memory state for rapid prototyping without setting up a database?

Yes, in-memory state is used for rapid prototyping to avoid database setup. It requires minimal scaffolding and a single-start command, allowing you to test UI and logic branches immediately while keeping the experimentation low-risk.

What is the best way to evaluate tradeoffs between a logic prototype and a UI prototype?

The best way to evaluate tradeoffs is using a two-branch workflow that swaps between runnable logic and UI prototypes. This approach lets you directly compare design decisions in a throwaway, in-memory environment before committing to a final solution.

Do I need external dependencies or scripts to extend a throwaway prototype?

No, external dependencies are not required. You can extend a throwaway prototype using optional scripts, references, or assets, but the core functionality relies on a single-start command and in-memory state without needing additional components.

When should I avoid using throwaway prototypes for design exploration?

You should avoid throwaway prototypes when you need persistent data storage or permanent application scaffolding. Because they use in-memory state and minimal scaffolding, they are designed for low-risk, temporary experimentation rather than committed production solutions.