Claude Platform Foundations

Start here. Learn how the Claude Messages API actually works — roles, tool_use, streaming, prompt caching, token counting, and the Message Batches API — then where Claude excels and fails, and how to run your first Claude Code session.

10 lessons · 105 min

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Module 1 · The Claude API

4 lessons · 42 min

1. The Messages API & Roles9 min · Updated 2026-09-27
2. Tool Use Basics (tool_use blocks)11 min
3. Streaming & Prompt Caching12 min · Updated 2026-09-27
4. The Message Batches API10 min · Updated 2026-09-27

Module 2 · Capabilities & Limits

3 lessons · 32 min

1. What Claude Can and Cannot Do10 min
2. Context Windows & Lost-in-the-Middle11 min · Updated 2026-09-27
3. Hallucination Patterns & Mitigations11 min

Module 3 · Claude Code 101

3 lessons · 31 min

1. Installing Claude Code & Your First Session10 min
2. Plan Mode vs Direct Execution10 min
3. Built-in Tools Tour (Glob, Grep, Read, Write, Edit, Bash)11 min

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