{
  "after": "C288",
  "chosen_next_step": "C289: derive the local maps in the(-12,-10,5,7)K+i normal form and preserve the remaining common-translation freedom.",
  "reason": "The source pattern is now bounded; comparing its coordinates with the actual local maps can reveal whether the K simplification determines placement or merely restates it.",
  "next_step_executed_within_this_step": false,
  "effort": "High sufficient",
  "limits": [
    "A formal additive module is not a closed action on the finite source register.",
    "Path decompositions with shared endpoints are dependent.",
    "The4K difference of widths is not an event edge."
  ]
}