Thanks for writing that up, I linked to it from the issue. FWIW I agree with you that shell history should be a simple format, and even ad-hoc parseable via Uni

Thanks for writing that up, I linked to it from the issue. FWIW I agree with you that shell history should be a simple format, and even ad-hoc parseable via Unix tools. zsh uses simple : and ; delimiters. JSON is more complex, and binary formats like protobuf are way out.