| name | harvest-monitor |
| description | Web change monitoring - track changes on pages, detect updates, changelog diffs |
| allowed-tools | ["Bash","Read","Write","WebFetch","Grep"] |
| keywords | ["monitor","watch","changes","diff","changelog","update","track","compare"] |
Harvest Monitor
Track changes on web pages over time. Compare current content against cached versions to detect updates, new releases, breaking changes, and documentation modifications.
Usage
/harvest-monitor https://docs.example.com/changelog
/harvest-monitor https://docs.example.com/api --diff
/harvest-monitor --watchlist ~/.claude/cache/agents/harvest/watchlist.json
How It Works
- Fetch current page content
- Check cache for previous version
- Compute diff (content-level, not HTML-level)
- Categorize changes (added, removed, modified)
- Report significant changes
- Update cache with current version
Output
# Change Report: [URL]
> Checked: [timestamp]
> Previous: [cached timestamp]
> Status: CHANGED / NO CHANGE
## Changes Detected
### Added
- [New content]
### Modified
- [Changed content - before → after]
### Removed
- [Removed content]
## Impact Assessment
[What these changes mean for our project]
Watchlist Format
{
"pages": [
{
"url": "https://docs.example.com/changelog",
"frequency": "daily",
"notify": ["migrator", "shipper"]
}
]
}
Integration
- migrator: Track dependency changelogs for breaking changes
- shipper: Monitor deployment status pages
- tech-radar: Track technology evolution
Rules
- Cache previous versions locally
- Content-level diff, not HTML diff
- Ignore style/layout changes
- Only report meaningful content changes
- Max 1 check per hour per URL