Executes these capabilities
Inside this skill
The internal capability tree shows how this skill gets its work done.
SLink Checker
- link extraction
- HTTP status checking
- report generation
The contract
Input
- The built site or sitemap
- Optional list of URLs to ignore
Output
- Report of broken links with source pages
- Redirect and 404 summary
Deliverables
- Link check report
Use cases
- Pre-deploy quality gate
- Regular site health checks
- Content migration verification
Dependencies and replacements
Dependencies
- A built site or running server
Required tools
- Node.js
Required permissions
- Read access to the site output
Compatible with
- visual-review
- validation-checklist
Alternatives
- Browser-based link checkers
- Hosting platform link reports
Replaceable components
- The checker implementation
Reliability
Human checkpoints
- Review flagged links before fixing
Limitations
- External sites may block automated requests
- Does not judge link relevance
Failure modes
- Rate-limited or blocked external checks
- Missing links rendered by JavaScript
- False positives from maintenance pages
Recovery steps
- Check external URLs manually or with delays
- Verify client-rendered links separately
- Add maintenance pages to the ignore list
Validation methods
- Manually sample reported broken links
- Re-run after fixes and confirm the report is clean
Sources
Entry checked on Jul 31, 2026. Verification status reflects what AgentSkillTree has independently run, not the skill's own claims.
When to use
Use before deploying or after migrating content. Broken links are the cheapest trust loss on a site, and this check catches them mechanically.
Verification note
The generic procedure was validated on the AgentSkillTree.com build in 2026-07: it found no internal 404s and correctly flagged external URLs that block automated checks.