Not trying to be spammy here, but I want there to be awareness that there are startups working on tools to address these gaps. Our startup, IOpipe[1] is working on one set of tools to ease development, debugging, and instrumentation for serverless applications. Aside from Stdlib and ourselves, there are others working in areas like security and CI/CD as well. These are early days, and tools will soon become abundant, but at least there are a handful to try out today.

[1] - https://iopipe.com