{
  "completed_step": "C318",
  "next_proposed_step": "C319",
  "question": "Hold all source contexts fixed and toggle the cumulative+2 annual selection and regular+2 Gear selection independently in a four-case sensitivity test. Which17K and all-K relations actually require coupling them?",
  "reason_selected_after_current_result": "The decomposition exposes two distinct choices. Testing them independently will distinguish a source-permitted rectangle from the extra selection needed for its2K+15K form.",
  "executed": false,
  "authorization_remaining": 5,
  "fixed_scope": "Mirror/529; regular Gears Noah/Shem/Flood only; SP companion local. Fixed source inputs, no canonical/graph changes."
}