OptionalhandlerLocal implementation; may be bound later or absent for remote-only calls.
OptionalidStable call id; generated when omitted.
OptionalnodeNode namespace backing input/output port ids.
OptionalregistryRegistry used to resolve nested action names.
OptionalsessionOptional connection runtime that tracks and routes this action.
OptionalsettingsPort binding and post-run retention policy.
OptionalstreamDirect transport used by call, when no session routes it.
Collaborators and instance policy supplied when creating an Action.