This work develops a consistent Effective Field Theory (EFT) framework to describe dark matter (DM) interactions across the electroweak (EW) scale. Two complementary theories are implemented: the Dark Standard Model Effective Field Theory (DSMEFT), valid above the EW scale, and its low-energy counterpart, the Dark Low-Energy Effective Field Theory (DLEFT). Both theories are implemented in FeynRules to automatically derive Feynman rules, and a tree-level matching between DSMEFT and DLEFT is performed to ensure a coherent description of DM-SM interactions across energy scales.