Manage Claude Prompt Templates Externally

import Anthropic from "@anthropic-ai/sdk";

const anthropic = new Anthropic({ apiKey: process.env.ANTHROPIC_API_KEY });

async function fetchPrompt(persona: string, language: string) {
  const res = await fetch(
    "https://www.promptforge-app.com/api/v1/prompts/your-prompt-id",
    {
      method: "POST",
      headers: {
        Authorization: "Bearer pfk_your_api_key",
        "Content-Type": "application/json",
      },
      body: JSON.stringify({
        version: "stable",
        variables: { persona, language },
      }),
    }
  );
  const { content } = await res.json();
  return content as string;
}

// 1. Fetch your versioned Claude system prompt
const content = await fetchPrompt("helpful_assistant", "English");

// 2. Pass to Claude — update the template in PromptForge, not in source control
const message = await anthropic.messages.create({
  model: "claude-opus-4-6",
  max_tokens: 1024,
  system: content,
  messages: [{ role: "user", content: "Summarise the quarterly report." }],
});

console.log(message.content[0].text);