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test-driven-development

95 / 100 · Low risk

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

By crbnos/carbon (GitHub) · coding · 2,825 stars · scanned at commit 23320e4

Carbon's red→green loop with vitest — prove a change with a failing test first, then decide whether that test earns a place in the repo or stays a scratch proof. Use when implementing a feature or bug fix test-first, or when about to add or change a committed test. The house style it enforces is `.claude/rules/testing.md`; `tdd` holds the general theory (seams, anti-patterns). For browser-only proofs use /test.

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/'test-driven-development' ] || [ -L ~/.agents/skills/'test-driven-development' ]; then echo 'A skill folder named test-driven-development already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/crbnos/carbon' "$d" && git -C "$d" checkout --quiet '23320e4132e2b978e186521fbfb4225017a18d1f' -- '.claude/skills/test-driven-development' && mkdir -p ~/.agents/skills && cp -R "$d"/'.claude/skills/test-driven-development' ~/.agents/skills/'test-driven-development' && 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/'test-driven-development' ~/.claude/skills/'test-driven-development' (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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