Advanced Claude — Book 5 · Connectors and Live Data

The point where Claude stops advising you and starts acting for you. What a connector is and how MCP works. The three escalating capabilities — read, write, act — and how to scope a task down to the first one. What an OAuth consent screen is actually granting, and why it's the screen people skip and the one that matters. Then the half of the book that earns its place: how prompt injection actually works, including why a customer's own note in your own CRM is a viable attack surface; how to decide which servers to trust; making pre-action review practical rather than theoretical; and a seven-step checklist to run before you connect anything to anything.