Without revealing proprietary details, I can say that 2.9 million lines of Java code were generated and tested in 3 months via claude code with multiple max accounts. The technique is to decompose the specification, code generation, test generation, testing, documenting and other standard steps into minute prompts and responses within the task competency of claude code non-interactive. I also scoped tiny context by having a repo for each 3K module.

Much of the innovation was accomplished by asking the AI what was best practice.