"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-06 02:38:36.359850
"""

```python
from typing import List


class ReasoningEngine:
    """
    A simple reasoning engine to address limited reasoning sophistication.
    
    This class implements a basic rule-based system for decision-making,
    which can be expanded as needed.
    """

    def __init__(self, rules: List[str]):
        """
        Initialize the Reasoning Engine with a set of predefined rules.

        :param rules: A list of strings representing the reasoning rules.
        """
        self.rules = rules

    def apply_rule(self, input_data: str) -> str:
        """
        Apply a rule from the list based on the given input data.

        :param input_data: The input string to match against the rules.
        :return: A message indicating the outcome of applying the rule.
        """
        for rule in self.rules:
            if rule in input_data:
                return f"Matched Rule: {rule}"
        return "No matching rule found."

    def add_rule(self, new_rule: str) -> None:
        """
        Add a new rule to the reasoning engine.

        :param new_rule: A string representing the new rule to be added.
        """
        self.rules.append(new_rule)


# Example usage
if __name__ == "__main__":
    # Define some rules for the reasoning engine
    rules = [
        "input contains error",
        "user data valid",
        "temperature below threshold"
    ]
    
    # Create a ReasoningEngine instance with predefined rules
    reasoner = ReasoningEngine(rules)
    
    # Test the apply_rule method
    print(reasoner.apply_rule("input contains error"))  # Should match and return rule message
    
    # Add a new rule dynamically
    reasoner.add_rule("system in maintenance mode")
    
    # Test again after adding a new rule
    print(reasoner.apply_rule("system in maintenance mode"))  # Should now match the new rule

```