What goes into an agent
The parts serve different purposes:
Imagine a fictional workshop with a short FAQ. Its agent could explain class preparation from that FAQ and ask visitors which class they mean. The creator writes instructions about tone and missing information, then attaches the actual FAQ. If the document says nothing about refunds, the agent should say the information is missing. The creator checks questions against the supplied facts before sharing.
Describing the workshop during agent creation does not supply its business facts or connect the agent to outside systems. You add the reference material and check what the agent can do.