"""
Shared score-rounding helper.

Used by both annotation/annotate.py (Stage 2 aggregation) and
classification/infer.py (Stage 4 inference) to compute the `int_score`
column: round(clip(score, 0, 5)) -> integer 0-5, for FineWeb-EDU
backwards compatibility.
"""


def clip_round_score(score: float) -> int:
    """round(clip(score, 0, 5)) -> integer 0-5. Uses Python's banker's rounding."""
    return int(round(max(0.0, min(5.0, float(score)))))