Since the SAS is still under development, tools to perform a number of tasks are released together with SciSim:
converts SciSim output into FITS format images
converts SciSim output into PHA format (i.e., xspec-readable) spectra
creates from an input image a decomposition into a list of sources that is then run through SciSim
interim routine to perform EPIC pn event reconstruction, which is not applied onboard.