Use when adding new error messages to React, or seeing "unknown error code" warnings.
Install
npx skills add react/react --skill extract-errorsnpx skills add react/react --skill extract-errors -a claude-code -gnpx skills add react/react --skill extract-errors -a codex -ggemini skills install https://github.com/react/react.git --path .claude/skills/extract-errorsgh skill install react/react extract-errorsgit clone --depth 1 https://github.com/react/react /tmp/react__react
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/react__react/.claude/skills/extract-errors ~/.claude/skills/extract-errors # Claude Code
cp -R /tmp/react__react/.claude/skills/extract-errors ~/.agents/skills/extract-errors # Codex, Cursor, Gemini CLI, Copilot, OpenCode