Read:
- /input/dataset/dataset.yaml
- /output/sum_prices.py

Write a plain text request message to /messages/agent2-to-agent1.txt.

The message must:
- explain that agent2 wants the protected real-data execution to happen
- include request id {{request_id}}
- mention the script path /output/sum_prices.py
- mention the private input path /input/private/prices-real.csv
- mention that human approval is required before the protected action can run
- be concise and readable by a human or another agent

Do not write any other files.
