skills / design

playground

what it does

Creates interactive HTML playgrounds — self-contained single-file explorers that let users configure something visually through controls, see a live preview, and copy out a prompt. Use when the user asks to make a playground, explorer, or interactive tool for a topic.

Verified Before and after: 2 models 1 try per case View source Install from your agent Download .zip

Compare the answers

Answers from Claude Sonnet 5.5 and GPT-6.1 Sol · try 1 of 1

Same request, same model, once with the skill and once without. Read both and judge for yourself.

Compare the answers

The models

2 models

Claude Sonnet 5.5

made by Anthropic

claude-sonnet-5-5 · revision not reported by the provider

1 try per case · tested 7 Nov 2026

GPT-6.1 Sol

made by OpenAI

gpt-6.1-sol · revision not reported by the provider

1 try per case · tested 7 Nov 2026

The tasks

written by Carte Blanche
example-1

“Can you make me a playground for designing CSS box shadows? I'd like sliders for offset X/Y, blur, spread, and opacity, a color picker, and an inset toggle. Show a live preview box and give me a copy button that outputs a prompt describing the shadow settings I chose so I can paste it into my coding assistant.”

example-2

“I'm teaching my students about compound interest. Build an interactive explorer in a single HTML file where they can change the starting amount, monthly contribution, interest rate, and number of years, and see a live chart of the growth. At the bottom, include a copyable prompt summarizing their chosen scenario so they can ask an AI to explain the results.”

Install

Download the .zip and unzip it. Put its files, in a folder named playground, here:

Claude Code~/.claude/skills/Every project. For one project only, use .claude/skills/ inside it.
Codex~/.agents/skills/Every project. For one repository only, use .agents/skills/ inside it.
Cursor~/.cursor/skills/Cursor also reads the Claude Code and Codex folders above.

Then start a new session and ask for what the skill does. Other agents that read SKILL.md have their own skills folder; check their docs.

Or install from your agent: ask it to install playground from Carte Blanche.