start implementation on new architecture

sia/command_result.py

@@ -0,0 +1,35 @@
+from dataclasses import dataclass
+
+@dataclass
+class CommandResult:
+    """
+    Result of a command execution.
+    
+    Attributes:
+        message: Optional message describing the result
+        success: Whether the command executed successfully
+        should_stop: Whether the agent should stop after this command
+    """
+    message: str
+    success: bool = True
+    should_stop: bool = False
+    
+    @staticmethod
+    def success() -> 'CommandResult':
+        """Create a successful command result."""
+        return CommandResult(message="", success=True, should_stop=False)
+        
+    @staticmethod
+    def failure(message: str) -> 'CommandResult':
+        """
+        Create a failed command result.
+        
+        Args:
+            message: Description of the failure
+        """
+        return CommandResult(message=message, success=False, should_stop=False)
+        
+    @staticmethod
+    def stop() -> 'CommandResult':
+        """Create a command result indicating the agent should stop."""
+        return CommandResult(message="", success=True, should_stop=True)