plugin-hook

@myadmin-plugins

Adds a new event hook to src/Plugin.php — registers handler in getHooks(), implements the static method accepting GenericEvent, and wires up api_register/add_requirement/add_setting calls. Use when user says 'add hook', 'register new event', 'add plugin method', or needs to expose a new setting via getSettings(). Do NOT use for changes to src/api.php procedural functions.