prototype

Create terminal-based logic testers and multi-variant web interface prototypes.

Updated Apr 8, 2026
One-click install
npx skills add https://github.com/tonomb/personal-pnl --skill prototype-tonomb
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: prototype
Source: https://github.com/tonomb/personal-pnl/tree/main/.agents/skills/prototype
Command: npx skills add https://github.com/tonomb/personal-pnl --skill prototype-tonomb

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill eliminates the uncertainty of building features by allowing you to quickly sanity-check state models, business logic, or UI layouts before committing to production code.

Core Features & Use Cases

  • Logic Prototyping: Build interactive terminal apps to test state machines and edge cases in your business logic.
  • UI Prototyping: Generate multiple design variations on a single route to compare layouts and information hierarchy.
  • Use Case: You are unsure if your financial state machine handles a specific edge case; use this skill to build a throwaway TUI that lets you manually trigger transitions and observe the state output.

Quick Start

Use the prototype skill to create a new logic prototype for the transaction state machine.

Frequently Asked Questions about prototype

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

FAQPage Schema
How do I validate a state machine before writing production code?

To validate a state machine, you can build a throwaway interactive terminal app to manually trigger transitions and observe state output. This lets you sanity-check business logic and edge cases before committing to production code.

What is the best way to compare UI layouts during early design?

The best way to compare UI layouts is generating multiple design variations on a single route. This lets you evaluate different information hierarchies and web interface prototypes side-by-side to validate design decisions quickly.

Can I test business logic edge cases using a terminal interface?

Yes, you can test business logic edge cases using an interactive terminal-based interface. By creating a throwaway TUI, you can manually trigger state transitions and observe the state output to ensure your logic handles edge cases properly.

Do I need a task runner to prototype logic and UI designs?

Yes, integration with existing project task runners is required. This ensures seamless execution of your interactive terminal logic testers and web interface prototypes while providing visibility into state models during validation.

Why should I build throwaway code instead of testing features directly in production?

Building throwaway code eliminates the uncertainty of developing features by allowing you to rapidly validate state models and UI designs. It provides a safe environment to test edge cases without risking your production codebase.