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#18 by installsAgents & automationmattpocock/skills

prototype

Build interactive prototypes to validate UI designs or state logic before full implementation

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First seen
May 6, 2026
on skills.sh
Install
npx skills add https://github.com/mattpocock/skills --skill prototype
Works with Claude Code, Cursor, Codex, GitHub Copilot, Windsurf, Gemini CLI and other agents that read SKILL.md.
What it does

Generates throwaway code that answers specific design questions through interactive exploration. Use it when you need to sanity-check whether a state model feels right or explore what a UI should look like. The skill branches into logic-focused or UI-focused prototypes depending on your question, producing single shareable HTML files that non-developers can drive.

  • Logic branch: State machine explorer with free-play buttons and guided walkthroughs to test hard-to-reason-about cases
  • UI branch: Multiple radically different design variations on one route, switchable via URL param and floating control bar
  • Generates single, shareable HTML files that work without a dev environment
  • Auto-detects question type from context; defaults intelligently if ambiguous
Source on GitHub ↗On skills.sh ↗