I'm not sure if it's a depth signing or just a "get information" for the upcoming match up with the Jaguars. The Chiefs did deal a 3-4 defensive end at the deadline, so it's likely depth. Ellison played 3-4 defensive end and tackle in 2009 when the Jaguars were flipping between a 3-4 and 4-3 defense.
I can't imagine it's for information purposes. They can sign me for that, I'll take rookie minimum.
Throw it. Throw it a lot.