see https://github.com/okonet/lint-staged#reformatting-the-code. I think support could be added to only commit the files already staged, but the file matcher for which files to lint is simply a file glob so all matched files will be linted. Also it looks like lint-staged still does not fully support partially staged files -- lint-staged/lint-staged#62

Closing as this is something that needs to be fixed in the upstream dependency.

Just stumbled upon this issue. I really think vue-cli should warn the user when selection “Lint and fix on commit”, that this will break the git workflow. Especially since all partially staged files will silently be commited as a whole!