Reference to the Flow Agent (an MJ: AI Agents id/name) to invoke per record.
Stable id for this step, referenced by downstream steps' Inputs.
Map of agent-input name → source feature/column name.
OptionalInputsIds of upstream steps that feed this step (DAG edges).
Discriminator selecting the concrete step variant.
OptionalLabelOptional human-readable label for the visual DAG.
Map of output feature name → agent-output path.
flow-agent— invoke an MJ Flow Agent per record, mapping record fields into the agent and the agent's output back into features (plan §5.4). Provides richer per-record branching than a plain transform.