{
  "after": "C310",
  "chosen_next_step": "C311, not executed: audit File_18, File_09 and the existing axis-source statements for a pre-existing rule selecting the MT Noah/Flood→SP Shem-life context switch; preserve all endpoints, bridges, anchors and Gear limits.",
  "reason": "C310 establishes the smallest composite cover; the unresolved question is the source basis for selecting its transition, rather than further numerical coverage.",
  "next_step_executed_within_this_step": false,
  "effort": "High sufficient",
  "limits": [
    "A minimum set cover is a mathematical property, not a historical selection rule.",
    "The regular context family keeps Gear and rail labels on each segment.",
    "Absolute placement, historical intention, statistical rarity and a globalz-law are not established.",
    "The authorized batch ends atC310; C311 is unexecuted."
  ]
}