Learn the ideas.
Let the tools come and go.
A new AI agent tool ships every week, and honestly — it's exhausting. But underneath the noise, the same 30 ideas keep coming back with different names. So that's all this page teaches: the ideas. One calm screen at a time, with a picture for every concept.
Three ways in — pick your lane
You don't need all 30 on day one. Walk one short path, build something, come back for the next.
Designed to stick, not just to scroll
30 loose facts slide off the brain. Six named layers hold. Learn the buckets — the details hang themselves on them.
Each concept gets its own focused page: hook, picture, diagram, story, code, quiz. Nothing else competing for your attention.
Reading feels like learning; recalling is learning. Try each quiz in your head first — that little effort is what writes the memory.
The 30-concept spine is adapted from the community explainer "30 Core Agentic Engineering Concepts Every Developer Should Know" — rewritten in our own words, with diagrams, examples, self-tests and current resources added, plus two 2026 additions (output validation, evals). External links are curated starting points, not endorsements. This page is unlisted: only people with the link find it.