Partially-formed process, to convert RTF formatting (ex: lists) from clipboard / pasteboard, to paste into Markdown format (ex: git):

osascript -e 'the clipboard as «class RTF »' | tr -d '«»' | sed 's/^data RTF //' | xxd -r -p | /usr/local/bin/pandoc -f rtf -t markdown

(for Mac; could be adapted)