Set Up Your AI Receptionist in Second Brain OS: Prompt, Model, Tools & Knowledge (Part 1 of 8)

Part 1 of deploying one AI agent to every channel your customers use. We log into the Second Brain OS dashboard and walk the four things that define an agent: its behaviour (system prompt), the AI model, its knowledge, and its tools, plus thinking and verbosity. Then we test it and fix the two errors everyone hits on day one: no OpenAI key configured, and no credits on the key. Finish this part and your agent answers correctly before it goes anywhere near a customer.