diff --git a/src/pheval_ai_marrvel/tool_specific_configuration_options.py b/src/pheval_ai_marrvel/tool_specific_configuration_options.py
new file mode 100644
index 0000000..1eefb0a
--- /dev/null
+++ b/src/pheval_ai_marrvel/tool_specific_configuration_options.py
@@ -0,0 +1,12 @@
+from pydantic import BaseModel, Field
+
+
+class AIMARRVELConfigurations(BaseModel):
+    """
+    Class for defining the AI MARRVEL configurations in tool_specific_configurations field,
+    within the input_dir config.yaml
+    Args:
+        environment (str): Environment to run AI MARRVEL, i.e., docker/apptainer
+    """
+
+    environment: str = Field(...)