WordPress at a glance
filter is not described

user_request_action_description filter-hook . WP 4.9.6

Filters the user action description.

Usage

add_filter( 'user_request_action_description', 'filter_function_name_490', 10, 2 );
function filter_function_name_490( $description, $action_name ){
	// filter...

	return $description;
}
$description(string)
The default description.
$action_name(string)
The name of the request.

Where the hook is called

wp_user_request_action_description()
user_request_action_description
wp-includes/user.php 3279
return apply_filters( 'user_request_action_description', $description, $action_name );

Where the hook is used (in WP core)

Does not used.