Would be helpful to be able to see which failing tests have been claimed via the REST API.
It is already exposed, is it not? JENKINS-6145 (and we're using it all the time, but only the XML REST API)
The info on builds claimed may be, but not the info on tests claimed.
This would be particularly helpful info to have in Jenkins-generated emails.
Since Version 1.9 of the junit-plugin the claim test actions are exposed via the REST api.