As Stephen has mentioned, operating agreements typically apply to limited liability companies. Since you mentioned that you incorporated in DE, you’re likely a Delaware C Corp.
Going with that assumption, it looks like what you’re need are the “post incorporation documents.” These are are a set of documents that provides your company with everything you need after the initial formation.
They include (but not limited to):
Bylaws – rules you set to control the members of your company
Initial Board Consent – seeking board approval for decisions
Stock Purchase Agreements – creates the terms related to the sale of the shares of your company
Confidential Information and Invention Assignments Documents – Every employee and consultant should sign one to safeguard confidential information and give the company ownership of inventions.
Action of Incorporator – Used to appointment board of directions, bylaws etc…
Employee/Consulting Agreements – Hiring new employees and consultants
Seed Financing Documents – Documents to help you raise your initial investment through either a convertible note or equity raise.
To find out if these documents are right for your company and receive a free price quote to, feel free to check out.
Best of luck with the business!