Another lint-related question. When I try to run

./pants lint ::

I get

Error launching process: Os { code: 7, kind: Other, message: "Argument list too long" }

. It seems that pants is trying to run black and isort on all the files in my repo with one invocation.

Thank you for reporting that. Indeed, it is. Could you please open an issue for this? We will need to set up the argv more intelligently for those tools. For example, MyPy lets you pass a file with everything to run on

sure - https://github.com/pantsbuild/pants/issues/13462