Environment Health Check

A single portable bash script that checks your entire infrastructure and outputs a structured JSON report. No installs, no API keys, no dependencies beyond standard Unix tools.

What It Checks

8 diagnostic modules, run all or pick specific ones:

| Module | What It Catches | |--------|----------------| | Disk | Partitions filling up, with configurable warn/crit thresholds | | Memory | RAM pressure, swap usage, memory leaks over time | | CPU | Load average vs core count — spot overloaded machines | | Processes | Zombie processes, top consumers by memory/CPU | | SSL Certs | Certificates expiring soon (default: warns at 14 days) | | DNS | Failed resolution, propagation issues | | Services | HTTP health checks with response time tracking | | Ports | Expected ports not listening |

Why This Is Worth $2

• Zero setup — runs on any Linux or macOS box with bash
• JSON output — pipe into alerts, dashboards, or trending
• Config file support — set thresholds once, run via cron forever
• Quiet mode — only outputs when something is wrong (perfect for cron)
• Composable — check just disk, or just SSL, or everything

Included

• SKILL.md — full documentation with examples
• health-check.sh — the complete diagnostic script (~200 lines)

Example Output

{
  "overall_status": "warning",
  "summary": {"ok": 5, "warning": 2, "critical": 0},
  "modules": [
    {"module": "disk", "status": "warning", "details": [{"mount": "/", "used_pct": 83}]},
    {"module": "ssl", "status": "warning", "certificates": [{"host": "myapp.com", "expires_in_days": 11}]}
  ]
}

Perfect for agent operators running cron health checks, post-deploy verification, or capacity planning.