import json
import re
from typing import Any

_FENCE = re.compile(r"^```(?:json)?\s*(.*?)\s*```$", re.DOTALL)


def parse_json_object(text: str) -> dict[str, Any] | None:
    """Best effort: models sometimes wrap JSON in ``` fences even when asked not to."""
    candidate = text.strip()
    fenced = _FENCE.match(candidate)
    if fenced:
        candidate = fenced.group(1)
    try:
        value = json.loads(candidate)
    except ValueError:
        return None
    return value if isinstance(value, dict) else None