One legitimately great thing about LLMs is that it makes it feasible to add these kind of tracing instrumentations temporarily for profiling and then throw them away so they never reach source control let alone production.

I can get an LLM to trace my incomprehensible Tokio application which was also written by an LLM, which is why I don't understand its behavior. Truly the future we were promised.

I guess you should adopt RFCs or ADRs to help clarify the Tokio application, like this https://github.com/brunoarueira/thoth-mesh/tree/main/docs/ad.... This project is vibe coded, but I had put the effort to create issues, roadmap and ADRs, so later I can understand the project without going deep on the code!

Reaching source control is fine as long as there is a compile time flag to disable the whole thing, which tokio-tracing does