The problem is not code changing; the problem is segregation of concern. Even with pure devops model, there is likely chance of this breaking cause the devs can always rename code, add new methods. Anyways – this is what we have done for now.
Follow Up Question –> I have opted for Automatically Detect Methods — if a new method is added, will the Custom Service Detection automatically add / monitor the new method or we have to come and refresh something in the system?