This is a small guide to bot-related terms of art on Wikipedia. For convenience, links to other definitions on this page are italicized.

Each definition has an anchor, which can then be used to create links to that definition. For example, to link to the definition of a bot op, you can use [[WP:BOTDICT#Bot op]] to create WP:BOTDICT#Bot op, which will take you directly to the definition. Each listed variant (e.g. bot operator) has a corresponding anchor (e.g. #Bot operator).

Usually refers to mw:API:Assert, used to ensure a bot only edits while logged in.
A cron is a Unix program used for scheduling a bot task to be automatically run in periodic intervals, even if the bot operator is asleep.
Toolforge is WMF-hosted server environment commonly used for hosting automatic bots.