How is managed deletion of K8s objects in skaffold deploy

Question

I am starting to play with skaffold to handle continuous deployment in my Kubernetes cluster.

I have a bunch of yaml files that just wait to be applied with kubectl, at one point a.yaml and b.yaml:

apiVersion: skaffold/v2beta29
kind: Config
metadata:
  name: skaffold-deploy
deploy:
  kubectl:
    manifests:
    - a.yaml
    - b.yaml

Now, I make a development that needs to delete objects (in terms of kubectl delete) described in b.yaml (and I simply removed the file in my directory)

Is it possible to do so with skaffold?

If I skaffold deploy with this skaffold.yaml file:

apiVersion: skaffold/v2beta29
kind: Config
metadata:
  name: skaffold-deploy
deploy:
  kubectl:
    manifests:
    - a.yaml

objects in b.yaml are not deleted nor updated.

I was looking for a way to do this in the official documentation but could not find anything related to it. skaffold delete seems to delete everything that was previously deployed with it.

Thanks a lot in advance