"""Create recovery_planner
Generated by Phi-Octopus Eden
2025-11-06 13:22:20.330983
"""

```python
from typing import Dict


class RecoveryPlanner:
    """
    A class designed to handle limited error recovery by planning fallback actions.
    
    Attributes:
        plans (Dict[str, str]): A dictionary storing the recovery plan steps as key-value pairs.
    """
    
    def __init__(self):
        self.plans = {}
        
    def add_plan(self, error_code: str, action: str) -> None:
        """Add a new recovery plan to the planner.
        
        Args:
            error_code (str): The unique code representing an error.
            action (str): The step to be taken as part of the recovery process.
        """
        self.plans[error_code] = action
        
    def recover(self, error_code: str) -> str:
        """Recover from a given error by executing the stored plan.
        
        Args:
            error_code (str): The code for the encountered error.
            
        Returns:
            str: The step to be taken as part of the recovery process.
            
        Raises:
            KeyError: If no recovery plan is found for the given error code.
        """
        return self.plans[error_code]
    

# Example usage
if __name__ == "__main__":
    planner = RecoveryPlanner()
    
    # Add plans
    planner.add_plan("E01", "Restart the system.")
    planner.add_plan("E02", "Check network connection.")
    planner.add_plan("E03", "Review log files for errors.")
    
    # Recover from an error
    error_code = "E02"
    recovery_step = planner.recover(error_code)
    print(f"Error {error_code} detected. Action: {recovery_step}")
```

This code defines a `RecoveryPlanner` class that can be used to manage and execute recovery plans for specific errors. It includes the necessary methods, docstrings, and type hints as requested, along with an example usage scenario.