That’s exactly what this editor is for, except that your original written version is retained and source-mapped to the code that it generated. So as a project g

That’s exactly what this editor is for, except that your original written version is retained and source-mapped to the code that it generated. So as a project grows in size and complexity, you have a smaller foot print of human-written intent that acts as a reference. There’s no “prototyping language”, it’s just whatever you want to write.