- For VLD raw responses, this section overrides any common instruction that says the first characters must be exactly `TO:`.
- Use `{outgoing_message_id}` as the outgoing message ID for this turn.
- Start the raw response with the VLD outbox envelope:

{outgoing_message_id} TO: <actor>

- Then add one blank line and the message body.
- Do not start a VLD raw response with bare `TO: <actor>`. The bare `TO:` envelope is for AI actors.
