Export all entries in a folder in in-text citation format?

Just checking I haven’t missed something…

I want to be able to export all entries in a folder (~30) in a brief form rather than the full citations. The in-text citation format would do, e.g. (Gould 1978).

The existing options I can see are to export them all as full citations (too much data) or as citation keys (close, but a bit opaque).

The other option is to find / develop a citation style that uses just the brief data I want, switch to that, export, and remember to switch back for full bibliography generation. Is that the preferred procedure?