{
  "completed_step": "C327",
  "next_proposed_step": "C328",
  "question": "Test the same residual construction across the four already admitted MT Cainan/Terah contexts, holding SP OFF/Terah0 and full430 fixed. Which residuals depend on selecting restoredON/Terah60?",
  "reason_selected_after_current_result": "The positive490 relation is exact in the held context. Its source and interpretive force depend on whether that context is uniquely required or one admitted choice, so the next test varies only the existing two binary context switches.",
  "executed": false,
  "authorization_remaining": 6,
  "fixed_scope": "Mirror/529; regular Gears Noah/Shem/Flood only; SP companion local. Fixed source inputs, no canonical/graph changes."
}