Anthropic Messages API — Streaming & Advanced Patterns

Overview

The Messages API is the only inference endpoint. Every Claude interaction goes through client.messages.create(). This skill covers streaming, system prompts, vision, and structured output.

Prerequisites

• Completed clade-install-auth
• Familiarity with clade-hello-world

Instructions

Step 1: Streaming Responses

import Anthropic from '@claude-ai/sdk';

const client = new Anthropic();