dir('myfolder') taking user to tmp folder inside 'myfolder'

I have a pipeline script that clones a git folder and then switches to the cloned folder by using dir(). After switching to the cloned folder, I am trying to run a shell command to install a few npm packages.
however, the shell command is executed inside the @tmp folder instead of the folder being supplied in the dir() step.

The @tmp folder seems to be automatically created inside the folder supplied in the dir() step when i clone the  git repository