{
  "after": "C285",
  "chosen_next_step": "C286: extend the endpoint type to existing Noah/Shem births and deaths, preserving SP-only companions, and classify all resulting K totals.",
  "reason": "The Flood-only completeness is settled; broadening within the authorized Noah/Shem/Flood scope tests whether the same2K source leg participates in another complete K family.",
  "next_step_executed_within_this_step": false,
  "effort": "High sufficient",
  "limits": [
    "No event types outside Noah/Shem/Flood are admitted.",
    "The finite contexts remain comparative states.",
    "A complete arithmetic enumeration does not measure intentionality or global uniqueness."
  ]
}