{
  "completed_step": "C325",
  "next_proposed_step": "C326",
  "question": "Complete each triple with the already admitted MT counterpart of its SP terminal. Compare the resulting four-endpoint overlap and outer width with File_09’s declared bilateral460→500 field, retaining source labels and phases.",
  "reason_selected_after_current_result": "Three-point equality does not establish equality of whole configurations. The fourth admitted endpoint can distinguish a full bilateral completion from a narrower arithmetic resemblance without adding an endpoint.",
  "executed": false,
  "authorization_remaining": 8,
  "fixed_scope": "Mirror/529; regular Gears Noah/Shem/Flood only; SP companion local. Fixed source inputs, no canonical/graph changes."
}