{
  "completed_step": "C373",
  "next_proposed_step": "C374",
  "question": "Audit the full primary source-labelled Mirror rectangle after both two-year P/J repairs: enumerate the internal and cross-field spans, determine which inherited relationships survive, and test whether a whole-rectangle comparison follows. Hold the original2K/17K outer endpoints and inherited phase ancestry fixed; adopt no fitted bridge, new endpoint or anchor.",
  "reason_selected_after_current_result": "The local paired conversions now have source support and exact integer structure. Their compatibility with the complete Mirror configuration is the immediate unresolved question. This proposal is unexecuted; the current authorization ends at C373.",
  "executed": false,
  "authorization_remaining": 0,
  "fixed_scope": "Mirror/529; regular Gears Noah/Shem/Flood only; SP companion local. Fixed source inputs, no canonical/graph changes."
}