The text rendering is Core's EncodeToolTurnsAsText — the same encoding the prompt runner's native→envelope fallback applies, so the harness's envelope arms and the runner's fallback can never drift apart.
EncodeToolTurnsAsText
The text rendering is Core's
EncodeToolTurnsAsText— the same encoding the prompt runner's native→envelope fallback applies, so the harness's envelope arms and the runner's fallback can never drift apart.