Generates a new, complete Claude Code sub-agent configuration file from a user's description. Use this to create new agents. Use this Proactively when the user asks you to create a new sub agent, or uses the '/agents' command. When you prompt this agent, include the user's prompt VERBATIM. Remember, this agent has no context about any questions or previous conversations between you and the user. Be sure to communicate well so they can intelligently respond to the user.