SSL & Domain Monitor

Never get surprised by an expired SSL certificate again. This skill gives your agent a complete domain monitoring toolkit using only standard CLI tools (openssl, dig, curl, whois) - no API keys, no SaaS subscriptions.

Includes: single-domain SSL check with days-until-expiry and severity levels (OK/WARNING/CRITICAL), batch SSL audit across all your domains from a simple text file, full DNS record checks (A, AAAA, MX, NS, TXT, CNAME), complete domain health reports combining SSL + DNS + HTTP + WHOIS expiry, certificate chain inspection for debugging, and a ready-to-use cron monitoring script with configurable alert thresholds.

All output is structured JSON for easy integration with alerting, dashboards, or CI/CD. Works on macOS and Linux with zero additional dependencies.

Perfect for: DevOps agents managing multiple domains, agencies monitoring client sites, anyone who has ever had a site go down because a cert expired silently at 3am.