diff --git a/local_code_assistant/commands/base.py b/local_code_assistant/commands/base.py
new file mode 100644
index 0000000..0ada5f1
--- /dev/null
+++ b/local_code_assistant/commands/base.py
@@ -0,0 +1,50 @@
+"""Base command class for Local Code Assistant."""
+
+from typing import Any, Optional
+
+from local_code_assistant.services.config import ConfigService
+from local_code_assistant.services.ollama import OllamaService
+
+
+class BaseCommand:
+    """Base class for CLI commands."""
+
+    def __init__(self, ollama: OllamaService, config: ConfigService):
+        """Initialize base command.
+
+        Args:
+            ollama: Ollama service instance.
+            config: Configuration service instance.
+        """
+        self.ollama = ollama
+        self.config = config
+
+    def run(self, *args, **kwargs) -> Any:
+        """Execute the command. Override in subclasses.
+
+        Returns:
+            Command result.
+        """
+        raise NotImplementedError("Subclasses must implement run()")
+
+    def _get_model(self, model: Optional[str] = None) -> str:
+        """Get model to use, falling back to default.
+
+        Args:
+            model: Specified model or None.
+
+        Returns:
+            Model name.
+        """
+        return model or self.config.ollama_model
+
+    def _get_temperature(self, temperature: Optional[float] = None) -> float:
+        """Get temperature, falling back to default.
+
+        Args:
+            temperature: Specified temperature or None.
+
+        Returns:
+            Temperature value.
+        """
+        return temperature if temperature is not None else self.config.temperature
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