The “Published Summary” alchemy plug-in is currently in process of review for publish to Alchemy Webstore and so will soon be made available to the general public via the webstore.
If you are really inclined to use it before it would appear on the Webstore, you can download it from the git hub repository and drag/drop to your alchemy interface in the CME.
Below are some general information about the plug-in:
Git Hub Repository: https://github.com/pankaj-gaur/PublishedSummary
- SDL Web 8.1 and 8.5
- Chrome (latest), FireFox (latest), MS Edge (latest)