This case-sensitive code system http://hl7.org/fhir/CodeSystem/knowledge-capability defines the following codes:

Code	Display	Definition
shareable	Shareable	The artifact provides essential information necessary to ensure the artifact can be reliably shared in a public repository as a FHIR resource.
computable	Computable	The artifact provides at least machine-readable capability (i.e. it does not _only_ have narrative or unstructured elements). This capability can also be characterized as the artifact provides design-time capability, for example, an artifact is computable if it contains semantically verified CQL logic.
publishable	Publishable	The artifact provides information necessary to provide content management capability, including dependency management, artifact lifecycle, and publishing and repository metadata.
executable	Executable	The artifact is guaranteed to have the elements required to support execution of at least one run-time operation appropriate for the type of artifact. This capability can also be characterized as the artifact provides run-time capability, for example, an artifact is executable if it contains compiled ELM logic.