I recently came across a VS Code extension that does pretty much what you're looking for - > Out-of-Code Insights is a Visual Studio Code extension that allows

I recently came across a VS Code extension that does pretty much what you're looking for - > Out-of-Code Insights is a Visual Studio Code extension that allows you to add annotations, notes, and comments without modifying your source files. https://marketplace.visualstudio.com/items?itemName=JacquesGariepy.out-of-code-insights https://marketplace.visualstudio.com/items?itemName=JacquesG... GitHub: https://github.com/JacquesGariepy/out-of-code-insights/ https://github.com/JacquesGariepy/out-of-code-insights/