{
  "completed_step": "C364",
  "next_proposed_step": "C365",
  "question": "Use the previously derived cumulative Noah field and the native-ON source dependencies to test a950-year Cainan-state rectangle with460/490 partitions. Compare only with the already retained regular SP/restored-MT Noah biographies; do not adopt a fitted axis.",
  "reason_selected_after_current_result": "The failed500 cumulative leg directs attention to the sourced950 lifespan. C300 already retains cumulative Noah ancestry, allowing a role-qualified comparison without changing lifespan or annual-member controls.",
  "executed": false,
  "authorization_remaining": 9,
  "fixed_scope": "Mirror/529; regular Gears Noah/Shem/Flood only; SP companion local. Fixed source inputs, no canonical/graph changes."
}