MongoDB is the exception that says "no". Every hypothetical I've seen addressed with the AGPL involves a company running a server for users and then modifying

MongoDB is the exception that says "no". Every hypothetical I've seen addressed with the AGPL involves a company running a server for users and then modifying that server and having to give the code to those users. But rarely is anything that clear: if I have a task queue that processes internal jobs, do I need to provide the code to end-users? Or are the "clients" just my app and the queue workers? If I don't, can't the whole AGPL be trivially circumvented with a reverse proxy? I would give the AGPL more than three "?"s.