improvements-2.x-dev/modules/improvements_comment/improvements_comment.links.contextual.yml

entity.comment.edit_form:
  title: 'Edit'
  route_name: 'entity.comment.edit_form'
  group: 'comment'

entity.comment.delete_form:
  title: 'Delete'
  route_name: 'entity.comment.delete_form'
  group: 'comment'