# Website Change Monitor & Alert System

> Use when monitoring websites for content changes, comparing page snapshots with diff, scheduling periodic checks, or sending alerts via email and webhook notifications.

- Skill: `bytesagain/website-change-monitor-alert-system` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add bytesagain/website-change-monitor-alert-system`
- Raw SKILL.md: https://api.skillmd.com/api/skills/bytesagain/website-change-monitor-alert-system/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- Author: bytesagain (https://skillmd.com/u/bytesagain)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/bytesagain/website-change-monitor-alert-system

---


# Website Change Monitor & Alert System

Monitor web pages for content changes. Take snapshots, diff comparisons, schedule periodic checks, and send alerts via email or webhook when changes are detected.

## Commands

### watch
Add a URL to the watch list.
```bash
bash scripts/script.sh watch "[Technical Reference]"
bash scripts/script.sh watch "[Technical Reference]" --selector ".status-text"
```

### check
Check a URL for changes right now.
```bash
bash scripts/script.sh check "[Technical Reference]"
bash scripts/script.sh check --all
```

### diff
Show diff between last two snapshots of a URL.
```bash
bash scripts/script.sh diff "[Technical Reference]"
```

### schedule
Set up periodic checking (cron-based).
```bash
bash scripts/script.sh schedule "[Technical Reference]" 30
```

### notify
Configure notification channels (email, webhook, stdout).
```bash
bash scripts/script.sh notify webhook "[Technical Reference]"
bash scripts/script.sh notify email "admin@example.com"
```

### help
Show all commands.
```bash
bash scripts/script.sh help
```

## Output
- Change detection results with diff
- Snapshot history
- Notification delivery confirmation

## Feedback
https://bytesagain.com/feedback/
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