AnimTracer is a simple and handy tool for Unity Editor intended to automagically fix animations when the hierarchy of animated GameObject is changed. Reparent, add, delete or rename GameObjects - all changes will be traced. Unity stores paths to animated properties instead of references or GUIDs. That’s why when you change the hierarchy of an animated GameObject you can get something like this:
AnimTracer was developed to minimize the efforts required to solve this problem. Check out the demo / trailer (better watch in fullscreen or in a new tab).