Tutorials

Systematic learning paths to master core technologies

2026

05/02

ClaudeAgent24 min read3 Chapters

A systematic guide to Claude's core developer capabilities — from API cost optimization with Prompt Caching to Tool Use and Claude Code's built-in tool system.

1Claude API Prompt Caching: Cut Input Costs by 90%2Claude API Tool Use: Connecting the Model to the Outside World 3Claude Code Tool System: All 39 Built-in Tools Explained