Besides sneaking or combat, the kunoichi will have to use her skills to gather intel and a place to rest in the town to achieve success in her mission... whatever it may be.
You'd think she can just pay with money for the services, but who wants money, am I right?
While she certainly has the looks of a good kunoichi, her skills as one are still 2nd rate.
So even the things outside of combat may be a bit difficult for her if not careful.