Check whether the installed Expedait skills are the latest version and update them if not. Use this skill whenever the user asks to 'update the Expedait skills', 'check for skill updates', 'am I on the latest Expedait skills', 'upgrade expedait-skills', or when another Expedait skill's update-check preamble reported EXPEDAIT_UPDATE_AVAILABLE. Compares the locally installed version against the latest GitHub release and walks through the right update path (script installer or Claude Code plugin).
