{
  "schema": "compo-creative-engine/v1/layout-candidate-set",
  "planner_run_id": "planner-d3ef1a9695a55555",
  "request_id": "poster-request-golden-007-001",
  "candidates": [
    {
      "candidate_ref": "candidate-golden-007-left-01",
      "rank_hint": 1,
      "status": "proposed",
      "evidence_refs": [
        "evidence:metrics-report:GOLDEN-007",
        "evidence:brief:poster-brief-explicit-roles-v1"
      ],
      "distinctive_axis": "alignment"
    },
    {
      "candidate_ref": "candidate-golden-007-center-02",
      "rank_hint": 2,
      "status": "proposed",
      "evidence_refs": [
        "evidence:metrics-report:GOLDEN-007",
        "evidence:brief:poster-brief-explicit-roles-v1"
      ],
      "distinctive_axis": "whitespace"
    },
    {
      "candidate_ref": "candidate-golden-007-compact-03",
      "rank_hint": 3,
      "status": "proposed",
      "evidence_refs": [
        "evidence:metrics-report:GOLDEN-007",
        "evidence:brief:poster-brief-explicit-roles-v1"
      ],
      "distinctive_axis": "scale"
    }
  ],
  "rejected_candidates": [],
  "review_required": true,
  "mutation_allowed": false,
  "planner_provenance": [
    "deterministic_pixel_scan_v1",
    "explicit_roles_only",
    "vision_observation_excluded_until_qualified"
  ]
}