ConstReadonlyfirstUserMessage: StateMappingstate.firstUserMessage() || undefined: the text of the first message the simulated user sent.
ReadonlylastAgentMessage: StateMappingmessageText(state.lastAgentMessage()): the text of the last message the agent under test sent.
Readonlymessages: StateMappingstate.messages: the whole conversation as a list of messages.
Readonlytranscript: StateMappingstate.transcript(): the whole conversation as role: content lines.
Inputs that read the conversation of the run.