title: Controlling build task flow in Team Build 2015
body: <p>Is it possible to control the flow of a build centrally in TFS2015 build vNext? </p>
  
  <p>Say, I want some business tasks (custom tasks) to be executed before and after the build, but do not want user to be able to remove or change the position of these task in the build definition editor.</p>
  
  <p>Or is there a way to create a build definition template to achieve the same by not exposing the tasks?</p>
  
  <p>Note: I don't want to use XAML build definitions as it doesn't have new xPlat build capabilities etc.</p>