implement similarity threshold

implement a semantic similarity threshold to determine whether:
the agent would simply just be a chatbot with personality,
or if it should use its tools to its advantage for more sophisticated questions.

This may require constant querying of the VDB

For example,

UI: Hello, how are you?
R: (Langchain chaining) I am good, how are you today?

UI: What are vector databases?
R: (Threshold > 0.85 to Pinecone DB) (Answer)

Either this, or have it utilize its toolbelt to determine whether it should VDB retrieval and RAG, search the web, or respond as a chatbot.