A clear and concise description of the problem or missing capability...
This would make handling of schematics with many parameters more convenient. I would like to have the following behaviour.
The json has the parameters as a key value pair. It is allowed to have less parameters than the schema defines, but not more. All parameters can be overwritten by cli flags individually.
Describe alternatives you've considered
a workaround would be to wrap a cli command in another script that transforms json and flags to the schematics flag