Chapter 19

19Tool Use and Function Calling

Draft pending — this page is an outline of planned content. Write it by creating content/tool-use.md.

19.1Turning language into actions

Planned: The request/tool-call/result loop; the model proposes, the harness executes.

19.2How tool calling is trained and formatted

Planned: Schemas, JSON arguments, and the round-trip protocol.

19.3MCP and standardized tool interfaces

Planned: Why a protocol for tools emerged; servers, clients, and capabilities.

19.4Reliability and safety of actions

Planned: Confirmation, permissions, and side effects; the human-in-the-loop line.