Setup & Installation
Or with the ClawHub CLI, for registry-managed skill folders outside a full OpenClaw workspace:
What This Skill Does
Monitors web pages for content changes by storing snapshots and computing diffs between checks. Supports CSS selectors to target specific elements like pricing tables or article lists rather than entire pages.
CSS selector support lets you target specific page elements, cutting noise from ads, timestamps, and other dynamic content that changes on every load.
When to use it
- Tracking competitor pricing pages for changes
- Watching a job board for new listings
- Monitoring a product page for restocks
- Checking government sites for policy or regulation updates
- Following a blog for new posts
Example Workflow
Here's how your AI assistant might use this skill in practice.
User asks: Watch the pricing page at example.com/pricing for changes to the pricing table
- 1Adds the URL with a CSS selector targeting the pricing table element
- 2Takes an initial snapshot of the selected content
- 3Runs a check against the stored snapshot to detect changes
- 4Displays a diff showing exactly which lines were added or removed
Diff output showing changed lines in the pricing table, marked with + and - symbols