Someone once said, "give your agents good tools and context" and get out of the way. I would add, "stay in the loop friends"
I don't use Oai/Ant products or models, open weight absolutist that I am, but I would focus on your terminal workflows, custom tools, and repo context like AGENTS.md as a starting place. For tools, focus on moving deterministic workflows to scripts they can use, instead of having them do them differently each time based on markdown. You'll save yourself a lot of tokens and strife in the process.
I don't use Oai/Ant products or models, open weight absolutist that I am, but I would focus on your terminal workflows, custom tools, and repo context like AGENTS.md as a starting place. For tools, focus on moving deterministic workflows to scripts they can use, instead of having them do them differently each time based on markdown. You'll save yourself a lot of tokens and strife in the process.