Description

The default_title filter runs in wp-admin when adding a new post, page, or custom post type. This filter allows you to change the default title that is displayed in the title field.

Usage

function my_default_title_filter() {
	global $post_type;
	if ('my_custom_post_type' == $post_type) {
		return 'My Filtered Title';
	}
}
add_filter('default_title', 'my_default_title_filter');