The same way developers learned to talk in patterns, Factory, Observer, Strategy, building with AI is converging on its own. These are the recurring shapes behind agents and LLM apps: what each one does, its strengths and watch-outs, when to reach for it, and an example prompt. The vocabulary, made explicit.
Patterns are how a field shares hard-won structure without re-deriving it every time. AI is early enough that most of these are scattered across framework docs and blog posts under different names. Collecting them, clearly, with the trade-offs honest, is exactly the kind of reference KB Cafe was built to be. More patterns are on the way; start with Reflection or read the AI Explained concepts they build on.