Is it feasible to create a Java Agent similar to Reactor's Debug Agent?

I discovered that Project Reactor provides a [Java Agent](https://projectreactor.io/docs/core/release/reference/#reactor-tools-debug) that does bytecode manipulation to do its equivalent of RxJava's assembly tracking (called "[debug mode](https://projectreactor.io/docs/core/release/reference/#debug-activate)"), but without any runtime performance penalty. Naturally, this made me curious if RxJava could use a similar technique to get the benefit assembly tracking without high cost of generating stack traces. Does it seem possible, or are there differences in the underlying implementations of each that would make it infeasible/impossible for RxJava?