Every now and then, people ask me:“I am new to agentic development, I’m building something, but I feel like I'm missing some tribal knowledge. Help me catch up!”.I’m tempted to suggest some serious stuff like multiweek courses (e.g. by HuggingFace or Berkeley), but not everyone is interested in that level of diving. So I decided to gather six simple empirical learnings that helped me a lot during app.build development. This post is somewhat inspired by Design Decisions Behind app.build, but is g...