{
  "completed_step": "C399",
  "next_proposed_step": "C400",
  "question": "Classify every admissible path in the two sourced E/P/J graphs by its endpoints and operator counts. Derive an exact normal form for open and closed paths and check when distinct words represent the same affine map, without expanding the source graph.",
  "reason_selected_after_current_result": "The source domain is now complete. Extending the circuit result to the full admitted path grammar can identify the actual reduced algebra rather than relying on isolated commuting examples.",
  "executed": false,
  "authorization_remaining": 4,
  "fixed_scope": "Mirror/529; regular Gears Noah/Shem/Flood only; SP companion local. Fixed source inputs, no canonical/graph changes."
}