Vkontakte Message Shortcut is a free Chrome add-on developed by Dmitry Tarasov. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools.

This add-on allows users to add a shortcut link to the messages of a specific recipient in the main menu of Vkontakte, a popular social networking site. If you are an active user of Vkontakte and frequently communicate with the same person, this add-on can be quite useful. By adding a new button to the site's main menu, you can quickly access the messages of that particular user.

Please note that the add-on's source code is available on GitHub for those interested in reviewing it or contributing to its development.

Overall, Vkontakte Message Shortcut provides a convenient way to access messages with a specific recipient on Vkontakte, making communication faster and more efficient.