How would I do sanity checks with a placement system that uses models?

So I have a system which allows players to resize the models

Now the Problem

HOW WOULD I DO SANITY CHECKS ONTO THE MODEL

Do I trust the players model from the client that they resized ENTIRELY?

I was thinking of something like

Player sends a model to the server ---->>>> Server checks if that model from the client is under a folder

so like

Client Side

RemoteEvent:FireServer(ModelToResize)

RemoteEvent.OnServerEvent:Connect(function(Player, ModelBeingResized)

    if ModelBeingResized.Parent == PlayerFolder then
        --Resize it
    end


end)