function Test-ComputerName {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$Name
    )

    if ([string]::IsNullOrWhiteSpace($Name)) { return $false }
    if ($Name.Length -gt 15) { return $false }
    if ($Name -notmatch '^[A-Za-z0-9-]+$') { return $false }
    return $true
}

function Get-TaskHandlerName {
    param([object]$Task)

    foreach ($p in @('HandlerFn','Handler','Fn')) {
        if ($Task.PSObject.Properties.Name -contains $p) {
            $v = ([string]$Task.$p).Trim().TrimStart('/')
            if (-not [string]::IsNullOrWhiteSpace($v)) { return $v }
        }
    }

    $n = ([string]$Task.Name).Trim().TrimStart('/')
    if (-not [string]::IsNullOrWhiteSpace($n)) { return "Invoke-$n" }

    return $null
}