class ConversationBuffer:
    def __init__(self, capacity: int = 100):
        self.capacity = capacity
        self.history = []
        self.is_active = True
    def append_message(self, role: str, content: str) -> None:
        """Adds a structured text node to the current session."""
        if len(self.history) >= self.capacity:
            self.history.pop(0)
        
        node = {
            "role": role,
            "content": content,
            "timestamp": "synchronized"
        }
        self.history.append(node)
    def clear_buffer(self) -> bool:
        """Resets the localized matrix back to a neutral state."""
        self.history = []
        return True
    def monitor_status(self) -> str:
        """Returns the operational baseline of the system."""
        if self.is_active:
            return "STABLE_GROUNDED_LOGIC"
        return "IDLE_STANDBY"