Took 20 agents straight 24 hours of continuous work to solve it. After that, /review took 10 hours to run.
I literally had to add function level tracing through every single thing in the call stack. Every loader, plugin, hook, all of modernjs runtime and server, half of module federation ecosystem. Literally just moved the whole core repository into modernjs packages dir to solve it. Still need to go refactor several things. But it now works end to end afik