WordPress at a glance
filter is not described

manage_sites_action_links filter-hook . WP 3.1.0

Filters the action links displayed for each site in the Sites list table.

The 'Edit', 'Dashboard', 'Delete', and 'Visit' links are displayed by default for each site. The site's status determines whether to show the 'Activate' or 'Deactivate' link, 'Unarchive' or 'Archive' links, and 'Not Spam' or 'Spam' link for each site.

Usage

add_filter( 'manage_sites_action_links', 'filter_function_name_209', 10, 3 );
function filter_function_name_209( $actions, $blog_id, $blogname ){
	// filter...

	return $actions;
}
$actions(array)
An array of action links to be displayed.
$blog_id(int)
The site ID.
$blogname(string)
Site path, formatted depending on whether it is a sub-domain or subdirectory multisite installation.

Where the hook is called

WP_MS_Sites_List_Table::handle_row_actions()
wp-admin/includes/class-wp-ms-sites-list-table.php 556
$actions = apply_filters( 'manage_sites_action_links', array_filter( $actions ), $blog['blog_id'], $blogname );

Where the hook is used (in WP core)

Does not used.