Agent Carter season 1 was 8 episodes, and season 2 was 10 episodes. The both ran after the "winter finale" of Agents of Shield, which would return after Agent Carter concluded.
-PJ
Slotting in Agent Carter was a good way to bridge the gap, though ABC wasn’t smart enough to figure out that modest ratings were better than zero ratings for the reruns they normally air in that gap (though, reruns cost nothing). I wasn’t personally a fan of the show, but it was a good scheduling idea.
I also enjoyed having a summer show like Falling Skies, but it ran its course.