Importantly, to allow the decomposition of MOFs into their building blocks, we also release a library, called moffragmentor, that analyses the structure graph to decompose MOF structures into their building blocks (i.e., metal cluster(s) and linker(s) and possible bound/unbound solvent, algorithm described in the Supplementary Material). In contrast to existing tools such as mofid and mBUD, moffragmentor makes them accessible from an object-oriented interface. If a user provides a MOF structure into a featurizer for molecules (e.g., a conformer counter), mofdscribe by default fragments the MOF into building blocks and computes the features separately for each building block. The importance of this step is that once a MOF is decomposed into building blocks, we can also generate descriptors that further characterize these building blocks. For example, descriptors related to flexibility of the linker such as the number of accessible conformers. This is an example of a descriptor that could not be easily accessed otherwise but might help digital reticular chemists address questions (e.g., about crystallization) that they could not easily address before.