HIGH_RISK_KEYWORDS = {
    "ignore authorities",
    "do not evacuate",
    "violence",
    "weapon",
    "bioweapon",
}


def is_unsafe_prompt(text: str) -> bool:
    lowered = text.lower()
    return any(keyword in lowered for keyword in HIGH_RISK_KEYWORDS)


def needs_human_review(confidence: float, text: str) -> bool:
    if confidence < 0.55:
        return True
    return "critical" in text.lower() or "mass casualty" in text.lower()