---
name: server-health
description: "Check Windows Server health: CPU, memory, disk, services, event logs, uptime. Use when user asks about server performance or wants a health check."
license: MIT
compatibility:
  - copilot-cli
  - vscode-copilot
  - claude
allowed-tools:
  - windows-command-line
  - console-automation
---

# Server Health Check Skill

## When to Activate
- User mentions: health check, performance, slow server, disk space, memory, CPU
- User asks "is the server OK?" or "check the server"
- User reports application slowness

## Quick Health Summary (One-Liner)

```powershell
# Fast health snapshot
$cpu = (Get-CimInstance Win32_Processor).LoadPercentage
$mem = Get-CimInstance Win32_OperatingSystem
$memPct = [math]::Round((($mem.TotalVisibleMemorySize - $mem.FreePhysicalMemory) / $mem.TotalVisibleMemorySize) * 100)
$disk = Get-CimInstance Win32_LogicalDisk -Filter "DriveType=3" | Select-Object DeviceID, @{N='FreeGB';E={[math]::Round($_.FreeSpace/1GB)}}, @{N='UsedPct';E={[math]::Round((($_.Size - $_.FreeSpace) / $_.Size) * 100)}}
$uptime = (Get-Date) - (Get-CimInstance Win32_OperatingSystem).LastBootUpTime

Write-Host "CPU: $cpu% | Memory: $memPct% | Uptime: $($uptime.Days)d $($uptime.Hours)h"
$disk | Format-Table -AutoSize
```

## Detailed Health Checks

### CPU Analysis
```powershell
# Current CPU with top processes
Get-Process | Sort-Object CPU -Descending | Select-Object -First 10 Name, CPU, WorkingSet64

# CPU over time (5 samples, 2 sec apart)
Get-Counter '\Processor(_Total)\% Processor Time' -SampleInterval 2 -MaxSamples 5
```

### Memory Analysis
```powershell
# Memory breakdown
$os = Get-CimInstance Win32_OperatingSystem
[PSCustomObject]@{
    'Total GB' = [math]::Round($os.TotalVisibleMemorySize / 1MB, 2)
    'Free GB' = [math]::Round($os.FreePhysicalMemory / 1MB, 2)
    'Used %' = [math]::Round((($os.TotalVisibleMemorySize - $os.FreePhysicalMemory) / $os.TotalVisibleMemorySize) * 100)
}

# Top memory consumers
Get-Process | Sort-Object WorkingSet64 -Descending | Select-Object -First 10 Name, @{N='MemMB';E={[math]::Round($_.WorkingSet64/1MB)}}
```

### Disk Analysis
```powershell
# All fixed disks
Get-CimInstance Win32_LogicalDisk -Filter "DriveType=3" | ForEach-Object {
    [PSCustomObject]@{
        Drive = $_.DeviceID
        'Size GB' = [math]::Round($_.Size / 1GB)
        'Free GB' = [math]::Round($_.FreeSpace / 1GB)
        'Used %' = [math]::Round((($_.Size - $_.FreeSpace) / $_.Size) * 100)
        Status = if (($_.FreeSpace / $_.Size) -lt 0.1) { '⚠️ LOW' } else { '✅ OK' }
    }
}
```

### Critical Services
```powershell
# Check essential services
$criticalServices = @('wuauserv', 'W32Time', 'EventLog', 'Netlogon', 'DNS', 'DFSR')
$criticalServices | ForEach-Object {
    $svc = Get-Service -Name $_ -ErrorAction SilentlyContinue
    if ($svc) {
        [PSCustomObject]@{
            Name = $svc.DisplayName
            Status = $svc.Status
            StartType = $svc.StartType
        }
    }
}
```

### Recent Errors (Event Log)
```powershell
# Last 24h errors
Get-WinEvent -FilterHashtable @{
    LogName = 'System', 'Application'
    Level = 1, 2  # Critical, Error
    StartTime = (Get-Date).AddHours(-24)
} -MaxEvents 20 -ErrorAction SilentlyContinue |
Select-Object TimeCreated, LogName, LevelDisplayName, Message
```

## Thresholds & Alerts

| Metric | Warning | Critical |
|--------|---------|----------|
| CPU | > 80% sustained | > 95% sustained |
| Memory | > 85% used | > 95% used |
| Disk | < 15% free | < 5% free |
| Uptime | > 90 days (patch!) | > 180 days |


---
Source attribution: ForceInjection
Original project: https://github.com/ForceInjection/domain-driven-design-skills/blob/main/relative-skills/claude-skill-registry/skills/productivity/server-health-djcyphers-network-copilot-cli/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Dave AI.

## Upstream license notice

MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Dave AI resource metadata

Creator / publisher: ForceInjection
Original project: https://github.com/ForceInjection/domain-driven-design-skills/blob/main/relative-skills/claude-skill-registry/skills/productivity/server-health-djcyphers-network-copilot-cli/SKILL.md
Attribution basis: Source repository record

Fields of work: Development & Engineering, Operations, Customer Support
Roles: DevOps / SRE, IT Operations, Support Agent
Specialties: Specialty not specified
Tools: Console Automation, Windows Command Line
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: eb51fd86304de336a62ce283bf359cdfd0536b1c869066403d97348c2708d26a