[hpfr]

If you configure annex.largefiles, git add should work with the annex. I start with something like

    git annex config --set annex.largefiles 'largerthan=1kb and not (mimeencoding=us-ascii or mimeencoding=utf-8)'

> By default, git-annex add adds all files to the annex (except dotfiles), and git add adds files to git (unless they were added to the annex previously). When annex.largefiles is configured, both git annex add and git add will add matching large files to the annex, and the other files to git. —https://git-annex.branchable.com/git-annex/

Note that git add will add large files unlocked, though, since (as far as I understand) it’s assumed you’re still modifying them for safety:

> If you use git add to add a file to the annex, it will be added in unlocked form from the beginning. This allows workflows where a file starts out unlocked, is modified as necessary, and is locked once it reaches its final version. —https://git-annex.branchable.com/git-annex-unlock/