I'm building Banderas , an open-source feature flag management system for .NET teams on Azure. A few weeks in, I had a working API — CRUD endpoints, evaluation logic, integration tests, the works. Phase 1 was done. My entity bugged me. It just didn't look right. As I continue to study DDD, my eyes have started seeing things. Then I ran a DDD audit on my core domain entity, Flag.cs . This was my first time running an audit like this using an agent. And this is also the first time that I'm being intentional in my DDD approach to this project. What I found was uncomfortable and illuminating: my entity wasn't really a domain entity. It was a database row wearing a domain costume. This post is about what I found, why it mattered, and how I'm fixing it. What I Started With (yes, I know.…