extracted value beside its expected ground-truth value. The extracted values are the ones the eval graded.
document_packet_id is the dataset copy’s id, as GET …/evals/{eval_id}/accuracy/ returns it in by_document_packet. It is not the id of the production packet the document was added from.
A scalar field’s values are scalars. For a field inside a list or an object, extracted and expected hold one value per row, in row order. has_extraction is false when the eval produced no extraction for the document; its extracted values are then null.
A document outside the eval, an unknown eval, or one on another workflow or organization returns 404 NOT_FOUND.

