I finally managed to get a corrupted item that grants an aura. The API is fine, the skills show up as expected. However, the CR fails to recognize them, because there's no skill gem associated to expose the skill's tags. As a result, the CR doesn't auto-detect them by tag, since they have no tags.
Here's a modified CR that will be in the next version that solves the issue by additionally checking for the actual aura name:
https://gist.github.com/anonymous/40d97db8592d54623e97
There's no way to selectively tell the CR which aura you want to use if you have more than one version though. In addition, ExampleRoutine was not setup to allow aura selection.