I want to provide a list of about 10 web pages, have them loaded by the browser, then saved to the disk (same as "View Source Code", then save as...). I'm totally new to TamperMonkey. Can it run browser commands, or can it only react with the web page using Javascript, which itself, cannot save to disk?
No, with GreaseMonkey / TamperMonkey / Extensions, we are not able to write to local disk: only read via the FileSystem API). Despite of that, you can, for example :