{
 "policy": "scope10-evidence-ranked-v1",
 "method": "trained_relevance_head_ranked",
 "top_k": 3,
 "tasks": ["boolean", "multilabel", "single", "ordered"],
 "suppress_when_answer_not_stated": true,
 "rule": "per answer unit: the top_k sentence units by sigmoid(head_logit + alpha * lexical) (alpha from evidence-head.json lexical_residual), each returned with its score and rank; no spans when the unit's four-state readout tops at C (not stated) or a reserved-option choice tops at the reserved 'does not state this' option",
 "status": "experimental: ranked pointers, faithfulness not established, no absence threshold (the refit head has no reliable no-evidence signal; the answer's not-stated state is the absence signal)",
 "selected_on": "real dev hit@3 0.817 vs word overlap 0.667 (dev-selected; optimistic; no held-out test measurement)",
 "fallback": "lexical_overlap_fallback for image documents, answer types outside this list, or missing prefix states"
}