name: web-monitor description: Monitor web pages for content changes and get alerts. Track URLs, detect updates, view diffs. Use when asked to watch a website, track changes on a page, monitor for new posts/content, set up page change alerts, or check if a site has been updated. Supports CSS selectors for targeted monitoring.

Web Monitor

Track web pages for changes. Stores snapshots, computes diffs, supports CSS selectors.

Quick Start

# Add a URL to watch
uv run --with beautifulsoup4 python scripts/monitor.py add "https://example.com" --name "Example"

# Add with CSS selector (monitor specific section)
uv run --with beautifulsoup4 python scripts/monitor.py add "https://example.com/pricing" -n "Pricing" -s ".pricing-table"

# Check all watched URLs for changes
uv run --with beautifulsoup4 python scripts/monitor.py check

# Check one specific URL
uv run --with beautifulsoup4 python scripts/monitor.py check "Example"

# List watched URLs
uv run --with beautifulsoup4 python scripts/monitor.py list

# View last diff
uv run --with beautifulsoup4 python scripts/monitor.py diff "Example"

# View current snapshot
uv run --with beautifulsoup4 python scripts/monitor.py snapshot "Example" --lines 50

# Remove
uv run --with beautifulsoup4 python scripts/monitor.py remove "Example"

Commands

Output Symbols

• 🔔 CHANGED — page content changed (shows diff preview)
• ✅ No changes
• 📸 Initial snapshot taken
• ❌ Error fetching

Data

Stored in ~/.web-monitor/ (override with WEB_MONITOR_DIR env var): - watches.json — watch list config - snapshots/ — stored page content + diffs

Tips

• Use --selector to monitor specific elements (prices, article lists, etc.)
• Use --format json for programmatic checking (heartbeat integration)

  7w4.net小蔥技能。

• CSS selectors require beautifulsoup4 (included via --with flag)
• Text is normalized to reduce noise from timestamps, whitespace, ads

這個網頁監控工具質量不錯，核心功能齊全，能檢測網頁變化、檢視差異、設定關鍵詞告警，使用簡單方便。主要優點是純 Python 實現、依賴少、功能實用。主要不足是說明文件存在不一致，部分高階功能的用法介紹不夠完整，新使用者可能需要對照 README 才能完全掌握所有功能。總體而言是一個值得使用的工具，但文件還可以最佳化得更清晰一致。