Write, review, fix, optimize, and test code in any language or framework — HTML, CSS, JavaScript, React, Python and the rest — returned as complete copy-pasteable blocks. Also generates a B12 web app or website when someone wants the thing built rather than the source.
Install
npx skills add b12io/b12-plugins --skill codenpx skills add b12io/b12-plugins --skill code -a claude-code -gnpx skills add b12io/b12-plugins --skill code -a codex -ggemini skills install https://github.com/b12io/b12-plugins.git --path plugins/code/skills/codegh skill install b12io/b12-plugins codegit clone --depth 1 https://github.com/b12io/b12-plugins /tmp/b12io__b12-plugins
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/b12io__b12-plugins/plugins/code/skills/code ~/.claude/skills/code # Claude Code
cp -R /tmp/b12io__b12-plugins/plugins/code/skills/code ~/.agents/skills/code # Codex, Cursor, Gemini CLI, Copilot, OpenCode