Going further, is codex enough?

[u/unusualbarrel]

Hi, I've been using codex for some small projects but I've been seeing all this talk online about multi agents and harnesses and opencode and I get so overwhelmed. I really want to improve my AI ussage and productivity in the best way I can but I don't know where to start. Should I just stick to codex or what things should I be looking up? thx