Vector similarity score comparison

[jsarneja]

According to the script detect_pi_vectorbase.py in python-sdk/rebuff/, the below code snippet assumes higher similarity score implies prompt injection, whereas it seems it should be the opposite i.e. a lower similarity score should mean prompt injection? The same logic is then used in detect_injection method in sdk.py to declare if injection exists.

Also the first if condition equates score and top_score and therefore second if condition would never run?

Am I missing something here?

snipped from detect_pi_vectorbase.py

snipped from sdk.py

[Osherz5]

I have noticed the same thing, it really looks like the vector db search will always return count_over_max_vector_score=0 rendering it ineffective