I'm not 100% sure if this is possible, but there might be a way to make copying a link clean it automatically, rather than needing a separate "Copy clean link" context menu item. If it's possible to intercept—or at least detect—a clipboard-write event (Google Docs does this with JS, so I think a webextension might be able to as well), then when the user copies something using CTRL+C or right-click>Copy, CL could parse the copied object, and if it's a valid hyperlink that can be cleaned, clean it and send its own clipboard-write event with the cleaned hyperlink. Think it would work?
I'm not 100% sure if this is possible, but there might be a way to make copying a link clean it automatically, rather than needing a separate "Copy clean link" context menu item. If it's possible to intercept—or at least detect—a clipboard-write event (Google Docs does this with JS, so I think a webextension might be able to as well), then when the user copies something using CTRL+C or right-click>Copy, CL could parse the copied object, and if it's a valid hyperlink that can be cleaned, clean it and send its own clipboard-write event with the cleaned hyperlink. Think it would work?