Request to refine a problem statement using targeted selection-based instructions
Original problem statement text to be refined (max 50,000 chars)
Start line number (1-indexed)
End line number (1-indexed, inclusive)
Start column within start line (1-indexed, optional for character-level targeting)
End column within end line (1-indexed, exclusive — points after the last selected character, optional for character-level targeting)
Instruction describing what should change
OK
Response containing refined problem statement
Refined problem statement text