Initial skills documentation — 25 categories, all SKILL.md + references + scripts

2026-07-15 17:42:20 -04:00
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+# VPS Threshold Alerting System
+
+Deployed Jul 9, 2026. Monitors all 10 servers for RAM, disk, and CPU usage at 80%, 90%, and 95% thresholds. Alerts via Telegram.
+
+## Script
+`/root/.hermes/scripts/vps-threshold-check.sh`
+
+## Cron
+`vps-threshold-check` — every 15 min, no_agent, script-only. Silent on success, alerts on threshold crossings.
+
+## What it checks per server
+- **Disk:** `df -h / | awk 'NR==2 {print $5}' | tr -d '%'`
+- **RAM:** `free | awk '/Mem:/ {printf "%.0f", $3/$2 * 100}'`
+- **CPU:** `top -bn1 | awk '/Cpu(s)/ {print $2}'`
+- **Core count:** `nproc` (for load average comparison)
+
+## Thresholds
+- 80% — warning
+- 90% — critical
+- 95% — emergency
+
+Each threshold is tracked independently. Re-alerts suppressed for 24 hours. Automatic reset when metric drops below threshold.
+
+## Alert tracking
+`/root/.hermes/data/threshold-alerts.json` — format: `{hostname}_{metric}_{threshold}` → ISO timestamp
+
+## Alert format
+```
+🚨 VPS Alert: ai.itpropartner.com
+  ⚠️ DISK at 92% (threshold: 90%)
+  ⚠️ RAM at 83% (threshold: 80%)
+```
+
+Multiple threshold crossings on one server are combined into a single message.