Jagex Moderators, also known as Staff Moderators, Jagex Mods, JMods, or admins, are employees working for Jagex Ltd. Jagex Moderator accounts are only used for work purposes such as play-testing, debugging, and dealing with in-game situations. Jagex Moderators also have access to certain tools to aid in community events or quality assurance that players do not have access to, such as the rotten potato, rotten egg, and holiday tool.
Jagex Moderator accounts will always have a gold crown beside their name when in public chat and a gold background when posting on the forums. Jagex Moderator usernames will always begin with "Mod" with the exception of Paul, Ian and Andrew. Additionally, Jagex has also made it so that players' names cannot begin or have the word 'Mod' in their name to prevent confusion and potential scamming amongst players (i.e. Rule 5, which is Jagex staff impersonation).