Install confirmed, vocabulary in place, before Week 1 starts.
Tools and data at the bottom, people and judgment at the top, and an operating layer in between that almost nobody builds. This course builds the middle.
Carl gets told to go figure it out and builds his answer on a two-year-stale file. Don gets a map of three labelled folders and finishes the same task right.
Codex doesn't know your business, and your team doesn't know Codex. This course closes both gaps, one person's context at a time.
Genuinely capable. Completely new to your business. It won't read your mind, and the rest of this pre-read is about the weird part.
Message and system prompt, tokens, context window, tools, agent. Recognise them when they come up in Week 1, that's the whole bar this week.
Visionary sees where it should go, Implementer builds the architecture, Operator runs it day to day. You're being trained to run it, not build it.
Chatbot, one long thread, static files that go stale, then dynamic context that stays current as you work. Level 4 is the target.
Persistence needs a findable home. That needs a consistent structure. That needs routing that reaches it. Week 1 unpacks this properly, you just need to know it's coming.
A legitimate on-ramp if you want to explore early. Nobody who's already run it is behind.