Memory Curation — Keeping the Knowledge Base Honest

The idea I could never get my team to follow I have always loved the concept of Architecture Decision Records. The idea is simple: whenever your team makes a non-obvious technical decision, you write a short document. The decision, the context, the alternatives you considered, and why you chose what you chose. You commit it to the repository alongside the code. Future teammates can read it and understand not just what was built, but why. It is a great idea in theory. But I could never get anyone to actually do it consistently, including myself. When the decision is fresh in your head, writing it down feels like overhead. When you are under deadline pressure, the ADR file seems like the first thing to skip. By the time the decision feels worth documenting, you have forgotten half the context. And then a new engineer joins, or you revisit the codebase six months later, and you are left reading code with no memory of the reasoning behind it. ProjectBrain's knowledge base is, at its core,