Hacker news Agent

Overview

This service fetches AI-related topics from various sources hourly and sends a formatted summary email. The system uses claude code to gather, analyze, and format content into a visually appealing HTML email.

How It Works

Workflow

1. Fetch Data - Claude code sub agent (you can see prompt in .claude/agents/fetch-agent.md) fetches AI-related topics from various sources
2. Process Content - Agent analyzes and selects 10 relevant topics
3. Generate Email - Node.js service formats content into HTML and plain text
4. Send Email - Email sent via Resend API to configured recipients

Execution Flow

The system runs on a scheduled cron job that executes run_task.sh, which triggers the AI agent workflow and email delivery process.

Architecture

Core Components

• task_prompt.md - Detailed instructions for the AI agent workflow
• run_task.sh - Main execution script that triggers the AI agent
• send-email/ - Node.js email service for sending formatted emails
  • index.ts - TypeScript source code
  • build/index.js - Compiled JavaScript for execution
  • .env.local(cp .env.local.example .env.local) - Environment configuration
  • package.json - Node.js dependencies

Usage

Init

1. Install Claude code, nodejs(lts version is fine), npm, uv
2. Add exec permission

chmod +x ./run_task.sh

Updating Configuration

get your resend api key here:https://resend.com/api-keys and then

# Edit environment variables
nano send-email/.env.local

# Rebuild the Node.js service after changes
cd send-email && npm install  && npm run build

Run

./run_task.sh