it would be nice to reuse field names, types, and semantics across these metadata files (such as the module scanning response file) whenever possible, in order to avoid accidental complexity to the C++ ecosystem as a whole.
It may be the case that we can get away with under specifying it for now.
Do we already have a scenario where we would have local arguments for the standard library?
If not, we can skip the "local-arguments" field in the first revision.
Daniel