You have to design your process for writing code to handle more code than you could ever read. To do this you also have to accept that you will not be able to hand manage all of your agents and all of your projects. The key thing is to figure out how to manage your time better and spend your efforts unblocking your agents.
What I did was build my own process for this: https://github.com/mhalstrom/maximizepm
The main take away is: 1. You need an agent to manage your agents that you mainly interact with. 2. You need a durable way to manage tasks and the dependencies between them. 3. You need agents with multiple roles ie manage, build, review etc 4. You need to manage yourself across projects so any system you build needs to take that into account