Is it possible to have a plugin only execute JS on Scrum/Kanban boards?

I have a working plugin that does what I expect but the context in the atlassian-plugin.xml is set to atl.general. This means that the javascript will execute on ALL pages (which to me seems superfluous) is there a context that allows JS to execute only on the Agile boards?

I did try a couple of the com.pyxis.greenhopper.jira values but no joy…

Install Web Fragment Finder and have it show you the web resource contexts. It will show you the contexts that the other apps use on the page.