clank-website-monitor（叮当网站监控）

Website Monitor Skill

Monitor websites for changes and get alerts when something happens.

Features

• Change Detection – Track content changes on any website
• Price Tracking – Monitor product prices and get alerts
• New Content – Detect new articles, posts, or listings
• Screenshot Comparison – Visual diff of page changes
• Cron Integration – Automatic periodic checks

Usage

Add a website to monitor

website-monitor add "https://example.com/jobs" --name "Job Board" --selector ".job-listing"

Check for changes

website-monitor check

View change history

website-monitor history --last 7d

Use Cases

For Businesses

• Monitor competitor pricing changes
• Track industry news and blog posts
• Watch for new job postings
• Monitor customer review sites

For Individuals

• Track product prices on e-commerce sites
• Monitor event ticket availability
• Watch for new apartment/car listings
• Track social media mentions

Implementation

This skill uses curl + diff for simple monitoring:

#!/bin/bash
# Save current state
curl -s "$URL" | md5sum > "$STATE_FILE"

# Compare with previous
if ! diff "$STATE_FILE" "$STATE_FILE.prev" > /dev/null 2>&1; then
    echo "CHANGE DETECTED!"
    # Send alert via OpenClaw
fi

Requirements

• curl
• md5sum
• OpenClaw (for notifications)

License

MIT