04.7.5 · Skill in AI-native engineering
Tool calling
Letting a model call functions and APIs in your product.
Tool calling lets a model request actions such as searching, creating records or calling APIs. Tool design matters as much as prompt design: clear names, narrow scope and good errors. Every tool is also a permission to think about.
Resources
2- docsStart hereTool use with Claude ↗Anthropic docs · 10 min
How a model calls functions you define, and how your code runs them and returns results.
- articleGo deeperWriting effective tools for AI agents ↗Anthropic · 2025 · 15 min
How to design tools an agent can use well, and how to evaluate and improve them.
Tools
none yetTools for this topic are being researched.