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prototype

100 / 100 · Low risk

Fine to try.

By mattpocock/skills (GitHub) · design · 321,467 stars · scanned at commit 4ae2317

Build a throwaway prototype to answer a design question. Use when the user wants to sanity-check whether a state model or logic feels right, or explore what a UI should look like.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'prototype' ] || [ -L ~/.agents/skills/'prototype' ]; then echo 'A skill folder named prototype already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/mattpocock/skills' "$d" && git -C "$d" checkout --quiet '4ae2317ddb22b046e26455e4f9c9b3aaaf62212d' -- 'skills/engineering/prototype' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/engineering/prototype' ~/.agents/skills/'prototype' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'prototype' ~/.claude/skills/'prototype' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

Badge for your README

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