What documents are formed for an LLC?

LLC has 2 basic documents:

1. Certificate of Formation - It includes the following info: date of formation, name of company, the data of the registered agent of LLC.
2. Operating Agreement (its like the Bylaws of a C-Corp) - It has the main business rules of company, the data of founders, their initial capitals and duties. So the info about the founders are only in the Operating Agreement, which internal document of LLC.