... add two resistors as a potential divider and measure the divided voltage?
a potential divider is a possibility but I assume the input impedance of the scope is significant. Thought I would go simple if I could.
Simpler is always better,
iff possible.
Impedance effects are predictable and can be allowed for.
The input impedance of the *10 probe is 10MHz//15pF. The output impedance of the potential divider = r2/(r1+r2) i.e. ~r2 for a 100:1 divider, and the current it takes from your circuit is defined by r1+r2. What frequencies are you expecting to observe, since that will define the effect of the 15pF?
Don't, whatever you do, have r2=infinity and rely on the scope's input impedance; any slip could put the entire voltage across the scope.