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spec-prototype

92 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By leo-kuang-ai/spec-first (GitHub) · coding · 111 stars · scanned at commit 74655dc

Build a throwaway prototype to answer an unresolved product behavior or visual question before implementation. Use when the question needs a runnable artifact and a human must experience it; do not use for product discovery (route those to spec-ideate or spec-brainstorm), routine polish, production implementation, or unattended runs.

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

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

if [ -e ~/.agents/skills/'spec-prototype' ] || [ -L ~/.agents/skills/'spec-prototype' ]; then echo 'A skill folder named spec-prototype already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/leo-kuang-ai/spec-first' "$d" && git -C "$d" checkout --quiet '74655dc86b1270bb52239e0f8bc9517de7a7071c' -- 'skills/spec-prototype' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/spec-prototype' ~/.agents/skills/'spec-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/'spec-prototype' ~/.claude/skills/'spec-prototype' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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