In order to build the gnostic-grpc plugin make sure you have the pre-requisities as defined in the general README and then run the shell script
./plugin-creation.sh
An IncompatibilityReport which is defined here is not very informative but provides a classification for the incompatibilty as well as a severity level. Run the command with an appropriate file path to an OpenAPI document and an output location
gnostic --grpc-out=report=1:<output> <document>
An FileDescriptiveReport which is defined here, can be useful when singular file focused incompatibility information is needed. This report pairs incompatibilities with file position and a string detailing the incompatibility. To get such a report run the command with an appropriate file path to an OpenAPI document and an output location
gnostic --grpc-out=report=2:<output> <document>