Tools supporting OSCAL, the Open Security Controls Assessment Language.
See project subdirectories for more information per project.
Also see the OSCAL Tools site on NIST Pages, produced for this repository and hosting (or delivering) running demonstrations along with documentation.
There is also Java tooling available for working with Metaschema, a Java API for OSCAL, and an OSCAL Java commandline tool available in other repositories. Early versions of these tools were once stored in this repository.