This page is a little different from most on the bibliography. At various times, various people have created checklists how agile, or not, you might be. Such a thing can never be perfect, and should never be slavishly followed, but might be though-provoking about your own practice.
The Nokia Test as presented by Joe Little
Henrik Kniberg's extension to the Nokia Test
Kelly Water's checklist "written to assess how far multiple teams had got in their adoption of the Scrum/XP practices we wanted to see in use across my development department of about 90 people."
Michael James' Example Checklist for ScrumMasters (PDF)