Creating a custom post type (CPT) archive satellite widgets plugin enhances your WordPress site by allowing for unique categorizations and archival methods that aren’t provided out of the box. This functionality can significantly improve the way users interact with your content, especially if your site deals with distinct kinds or categories of information.

To start, you’ll need to understand the basics of custom post types and how they work within WordPress. Once you’ve established your custom post type, the next step is to focus on creating a customizable archive widget. This widget will specifically showcase a satellite view (a custom-designed summary or representation) of the archives for your new post type.

For plugin development, Widget API knowledge is crucial. Begin by creating a simple PHP function to register your widget, then integrate it with WordPress using hooks and filters. You might find the WordPress Plugin Widget Developer Handbook helpful as a comprehensive resource during this process.

Aside from coding your own, another alternative is to utilize existing plugins like Widget Logic or Content Views, which can be configured to display custom post types in different formats. However, for a more tailored solution, custom development is advisable. Remember, testing the widget extensively to ensure compatibility across different themes and devices is critical to providing a smooth user experience.

While this task requires advanced knowledge in PHP and WordPress backend development, the result can substantially increase the functionality and user engagement on your WordPress site.