Rapid Prototyper

Generates minimal working code to test ideas before you commit to full implementation. Single file when possible, includes basic test data, skips polish and error handling to get you something runnable in minutes. Queries your preferred tech stack from memory, then builds the simplest version that validates the core concept. Best for proof of concepts and MVPs where you need visual feedback fast. The scope discipline is solid: happy path only, fake tokens instead of real auth, localStorage instead of a database. If you tend to over-engineer before validating assumptions, this forces the opposite habit. Ships with a README that lists exactly what's missing so you know what to add if the prototype proves the idea works.

skills.sh installs: 222
GitHub stars: 16
last updated: Jun 3, 2026

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Install

$ npx -y skills add jackspace/claudeskillz --skill rapid-prototyper --agent claude-code

Installs into .claude/skills of the current project.

Files

Rapid Prototyper

Purpose

Fast validation through working prototypes. Creates complete, runnable code to test ideas before committing to full implementation:

Recalls your preferred tech stack from memory
Generates minimal but complete code
Makes it runnable immediately
Gets you visual feedback fast
Saves validated patterns for production

For ADHD users: Immediate gratification - working prototype in minutes, not hours. For aphantasia: Concrete, visual results instead of abstract descriptions. For all users: Validate before investing - fail fast, learn fast.

Activation Triggers

User says: "prototype this", "quick demo", "proof of concept", "MVP"
User asks: "can we build", "is it possible to", "how would we"
User mentions: "try out", "experiment with", "test the idea"
Before major feature: proactive offer to prototype first

Core Workflow

1. Understand Requirements

Extract key information:

{
  feature: "User authentication",
  purpose: "Validate JWT flow works",
  constraints: ["Must work offline", "No external dependencies"],
  success_criteria: ["Login form", "Token storage", "Protected route"]
}

SKILL.md on GitHub