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prototype-plan-writer

100 / 100 · Low risk

Fine to try.

By polar-bear-org/claude-skills (GitHub) · design · 54 stars · scanned at commit 95f0180

Plans and staffs the build day, decides what is real and what is facade, writes the prototype's content, and forces the trial run, part of the Design Sprint Pack by 90n. Use this whenever the user says "run prototype-plan-writer", "plan the prototype", "who builds what tomorrow", "what tool should we prototype in", "write the prototype copy", or when the storyboard is done and something has to exist by tomorrow evening. Use it even for a vague ask like "how do we build this in a day".

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-plan-writer' ] || [ -L ~/.agents/skills/'prototype-plan-writer' ]; then echo 'A skill folder named prototype-plan-writer already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/polar-bear-org/claude-skills' "$d" && git -C "$d" checkout --quiet '95f01806ca43f6ee788d0579743e35853b695930' -- 'packs/design-sprint-pack/skills/prototype-plan-writer' && mkdir -p ~/.agents/skills && cp -R "$d"/'packs/design-sprint-pack/skills/prototype-plan-writer' ~/.agents/skills/'prototype-plan-writer' && 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-plan-writer' ~/.claude/skills/'prototype-plan-writer' (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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