clade-model-inference

name	clade-model-inference
description	Stream Claude responses, use system prompts, handle multi-turn conversations, Use when working with model-inference patterns. and process structured output with the Messages API. Trigger with "anthropic streaming", "claude messages api", "claude inference", "stream claude response".
allowed-tools	Read, Write, Edit, Bash(npm:*), Grep
version	1.0.0
license	MIT
author	Jeremy Longshore <[e-mail]>
compatible-with	claude-code
tags	["saas","anthropic","claude","streaming","messages-api"]

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();

const stream = client.messages.stream({
  model: 'claude-sonnet-4-20250514',
  max_tokens: 1024,
  messages: [{ role: 'user', content: 'Write a haiku about TypeScript.' }],
});

for await (const event of stream) {
  if (event.type === 'content_block_delta' && event.delta.type === 'text_delta') {
    process.stdout.write(event.delta.text);
  }
}

const finalMessage = await stream.finalMessage();
console.log('\n\nTokens:', finalMessage.usage);