IMO, this thing re-loads other spacecraft with supplies.
One item would be small and medium sized rods.
Also neutron detection systems to keep track of emissions from small LEOs that pass over US territory.
Scattering of tiny sats, some small as a dime...some just the circuit board with etched antennae, super cap and tiny solar panel.
A kinetics and detection delivery truck that sometimes delivers exotic loads as well.
Just speculation..of course.
We need a delivery truck for space..and ones for the depths of the oceans as well.
I think it’s awesome we assume Rods from God is operational. And I wouldn’t bet against you. RIP Jerry Pournelle.
Good commentary from Jerry here that gives some history, on a Weekly Standard article he finds lacking in that area.
https://www.jerrypournelle.com/jerrypournelle.c/archives2/archives2mail/mail365.html#THOR
Always loved this scene from Star Gate when Jack is asked about Earth’s formidable space weapons:
“We have a number of Shuttles”
https://www.youtube.com/watch?v=b_5m94iN0Lg