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build-first-working-version

100 / 100 · Low risk

Fine to try.

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

Plans the first working version of a prototype as a First Working Version Build Plan with the one flow that must really work end to end, the parts that stay faked and labelled, small build steps each with a check you can see on screen, a save point after every working step and a stop rule. Use for "run build-first-working-version", "Claude built forty files and I cannot tell what works", "make one flow really work", "split the build into small steps", "what should stay faked", "when do I stop b…

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/'build-first-working-version' ] || [ -L ~/.agents/skills/'build-first-working-version' ]; then echo 'A skill folder named build-first-working-version 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 "$d" checkout --quiet '95f01806ca43f6ee788d0579743e35853b695930' -- 'packs/product-builders-pack/skills/build-first-working-version' && mkdir -p ~/.agents/skills && cp -R "$d"/'packs/product-builders-pack/skills/build-first-working-version' ~/.agents/skills/'build-first-working-version' && 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/'build-first-working-version' ~/.claude/skills/'build-first-working-version' (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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