A retail company wants an agent that, on a fixed schedule each night, reads the day's collected customer survey responses stored in Dataverse, generates a concise sentiment-and-theme summary for each product line, and writes the summaries back to a Dataverse table. There is no human in the loop, no conversation, and no need for the agent to decide among multiple tools or take dynamic actions — the flow of steps is always identical. As the solutions architect, which agent design best fits this requirement?