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spec-writing

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

Design a feature and write its spec at .ai/specs/{YYYY-MM-DD}-{slug}.md, with competitor research and explicit design decisions. Open questions are resolved with the user BEFORE the spec is written — the interview comes first, the document second. Use when designing or brainstorming a new feature, a new module, a data-model change, or any change touching 3+ files or crossing modules. Do not use for small bug fixes or one-file refactors, and do not start implementation from this skill — implemen…

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-writing' ] || [ -L ~/.agents/skills/'spec-writing' ]; then echo 'A skill folder named spec-writing 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 "$d" checkout --quiet '23320e4132e2b978e186521fbfb4225017a18d1f' -- '.claude/skills/spec-writing' && mkdir -p ~/.agents/skills && cp -R "$d"/'.claude/skills/spec-writing' ~/.agents/skills/'spec-writing' && 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-writing' ~/.claude/skills/'spec-writing' (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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