If you want to edit a csdef file in a cloud project from your NuGet package, this can be done using the install.ps1 PowerShell script in the tools directory. Note that you cannot add NuGet packages directly to a cloud project. Most likely the user will be adding your package to a web or worker role. The install script will then have to search the solution for csdef files. You will also want to put in a uninstall script to remove the changes your NuGet package made. Read More...