The challenge is inferring the intention of an image. While some sequences are distinctive, in some cases the identical sequence may be used for various purposes. niix2bids can help automate the process, assuming you have a Siemens scanner.
Alternatively, when setting up new protocols on the MRI console use the protocol name (DICOM tag 0018,1030) to describe the intention for your series. reproin can automate conversion for data acquired following these conventions.