{
  "after": "C299",
  "chosen_next_step": "C300: classify all MT Noah/Shem/Flood life endpoints against the cumulative fields under the fixed2832 correspondence.",
  "reason": "The600 segment is supported; a complete role census is needed before extending the map to whole biographies.",
  "next_step_executed_within_this_step": false,
  "effort": "High sufficient",
  "limits": [
    "Regular Noah and cumulative Shem retain different source identities.",
    "Four profile labels represent three numerical segments.",
    "No MT companion rail is introduced."
  ]
}