Skill
extract-errors
Use when adding new error messages to React, or seeing "unknown error code" warnings.
Install
With your agent
Install OMGSkills skill "react/react:extract-errors" into this agent's normal skills directory: use the OMGSkills MCP get_skill tool, install only the pinned_install commit and path, verify SKILL.md against pinned_install.skill_md_sha, and stop if MCP or the pin is unavailable. Do not overwrite or change existing skills without asking me.
Manual command
git clone https://github.com/react/react /tmp/react && ln -s /tmp/react/.claude/skills/extract-errors ~/.claude/skills/extract-errors
From README
Extract Error Codes Instructions Run yarn extract-errors Report if any new errors need codes assigned Check if error codes are up to date

