OptionalautofillsDefault input fragments; an autofilled input must otherwise be empty.
OptionaldescriptionDeveloper/model-facing explanation of what the port carries.
Port name used by handlers and on the wire.
OptionalrequiredWhether callers must provide the port.
Application type or MIME-facing type description.
OptionalunaryWhether the port represents one whole value rather than a stream.
Declarative input/output port fields accepted by ActionPortSchema.