The yaml pipeline template parameter type stringList (introduced in sprint 253) is not known. Can this be added to this service-schema.json?
Think it should be included over here.
I found this schema reference back in the browser's network traffic when I use the validate & save button in our private org's Azure Devops Services portal. So I guess this schema should be the place then, though there's also the distributedtask api, like _dev.azure.com/(ado-org-name)/apis/distributedtask/yamlschema?api-version=7.2-preview. Perhaps a good alternative to use otherwise by the ADO portal's UI?