Is it possible to apply tag after merge within visual studio 2013 for a Git repository?
I'm looking for this action in the team explorer but I can't find it.
Based on this page I'd say not currently. Although you are able to view them.
I want to: Apply a tag to a commit Can I do it in Visual Studio? No, but you can view them. See View and manage past versions in Git. How do I do it from the command prompt? You can use the command prompt to push, edit, and remove tags (see Git-scm: Git Basics - Tagging) from a repository in TFS if you have sufficient permissions.