Better error message for wrong enum value.

lynxkite-core/src/lynxkite/core/ops.py

@@ -144,6 +144,7 @@ def _param_to_type(name, value, type):
         assert value != "", f"{name} is unset."
         return float(value)
     if isinstance(type, enum.EnumMeta):
+        assert value in type.__members__, f"{value} is not an option for {name}."
         return type[value]
     if isinstance(type, types.UnionType):
         match type.__args__:

lynxkite-lynxscribe/src/lynxkite_lynxscribe/lynxscribe_ops.py

@@ -679,7 +679,9 @@ def chat_processor(processor, *, _ctx: one_by_one.Context):
 
 @output_on_top
 @op("LynxScribe Message")
-def lynxscribe_message(*, prompt_role: MessageRole, prompt_content: ops.LongStr):
+def lynxscribe_message(
+    *, prompt_role: MessageRole = MessageRole.SYSTEM, prompt_content: ops.LongStr
+):
     return_message = Message(role=prompt_role.value, content=prompt_content.strip())
     return {"prompt_message": return_message}