Add .skip marker preservation to Create-Clip.ps1 by detecting and extracting '.skip' suffix from source basename before inserting "-Clip" so marker stays immediately before container extension (e.g. P01.skip.mp4 -> P01-Clip.skip.mp4), and refactor extra parameter forwarding from array to hashtable splatting to pass arguments by name instead of position, parsing -Name value pairs and standalone switches while validating parameter syntax, preventing positional binding issues like '-Size 720p' being interpreted as positional

Create-Clip.ps1

@@ -2,6 +2,7 @@
 .SYNOPSIS
     Creates a new clipped video file using Clone-Video.ps1, requiring the -Source and -Frames parameters from that script.
     The filename used for the -Target parameter is automatically derived from the -Source filename, with "-Clip" inserted before the video file extension (e.g., P01.mp4 becomes P01-Clip.mp4).
+    When the source name carries a '.skip' marker before its extension, "-Clip" is inserted before that marker so it stays last (e.g., P01.skip.mp4 becomes P01-Clip.skip.mp4).
     Any extra parameters will be pass directly to Clone-Video.ps1, except for parameters -Source, -Frames and -Target.
 .PARAMETER Source
     Path to the input video file. Can be absolute or relative to current directory. If the path has no extension, .mp4, .webm and .mkv are tried in turn.
@@ -47,17 +48,60 @@ if (-not (Test-Path -LiteralPath $sourcePath)) {
 $sourceExt  = [System.IO.Path]::GetExtension($sourcePath)
 $sourceBase = [System.IO.Path]::GetFileNameWithoutExtension($sourcePath)
 $sourceDir  = [System.IO.Path]::GetDirectoryName($sourcePath)
-$targetName = "$sourceBase-Clip$sourceExt"
+
+# A '.skip' marker must stay immediately before the container extension, so "-Clip" is
+# inserted before it rather than after (e.g., P01.skip.mp4 -> P01-Clip.skip.mp4).
+# The marker's original casing is preserved.
+$skipMarker = ''
+if ($sourceBase -match '^(.*)(\.skip)$') {
+    $sourceBase = $Matches[1]
+    $skipMarker = $Matches[2]
+}
+
+$targetName = "$sourceBase-Clip$skipMarker$sourceExt"
 $targetPath = if ([string]::IsNullOrEmpty($sourceDir)) { $targetName } else { Join-Path $sourceDir $targetName }
 
 $scriptDir        = Split-Path -Parent $MyInvocation.MyCommand.Path
 $cloneVideoScript = Join-Path $scriptDir 'Clone-Video.ps1'
 
-# Forward extra args plus common parameters to Clone-Video.ps1
+# Forward extra args plus common parameters to Clone-Video.ps1.
-$passThrough = @()
+# The remaining arguments are turned into a hashtable and splatted by name: PowerShell
-if ($ExtraArgs) { $passThrough += $ExtraArgs }
+# passes the elements of a splatted *array* as positional arguments, so forwarding
-if ($PSBoundParameters.ContainsKey('WhatIf'))  { $passThrough += '-WhatIf' }
+# @('-Size', '720p') that way would bind '-Size' to Clone-Video.ps1's [int]$StartFrame
-if ($PSBoundParameters.ContainsKey('Confirm')) { $passThrough += '-Confirm' }
+# instead of naming its -Size parameter.
+# Assigned in two steps: an empty array returned from an if-statement block is enumerated
+# away by PowerShell, which would leave $extra as $null.
+$extra = @()
+if ($ExtraArgs) { $extra = @($ExtraArgs) }
 
-& $cloneVideoScript -Source $sourcePath -Frames $Frames -Target $targetPath @passThrough
+$forwarded = @{}
+$index = 0
+while ($index -lt $extra.Count) {
+    $token = [string]$extra[$index]
+
+    if ($token -notmatch '^-{1,2}([A-Za-z]\w*)$') {
+        Write-Error ("Unexpected argument '{0}'. Extra parameters must be passed by name (e.g. -Size 720p)." -f $token)
+        exit 1
+    }
+    $name = $Matches[1]
+
+    $next = if (($index + 1) -lt $extra.Count) { [string]$extra[$index + 1] } else { $null }
+
+    # The next token is this parameter's value unless it is itself a parameter name.
+    # A '-' followed by a digit is a value, not a name (e.g. -CRF -1).
+    if ($null -ne $next -and (($next -notmatch '^-{1,2}[A-Za-z]') -or ($next -match '^-\d'))) {
+        $forwarded[$name] = $extra[$index + 1]
+        $index += 2
+    }
+    else {
+        # No value follows, so this is a switch (e.g. -NoAudio, -Reverse, -LTX).
+        $forwarded[$name] = $true
+        $index++
+    }
+}
+
+if ($PSBoundParameters.ContainsKey('WhatIf'))  { $forwarded['WhatIf']  = [bool]$PSBoundParameters['WhatIf'] }
+if ($PSBoundParameters.ContainsKey('Confirm')) { $forwarded['Confirm'] = [bool]$PSBoundParameters['Confirm'] }
+
+& $cloneVideoScript -Source $sourcePath -Frames $Frames -Target $targetPath @forwarded
 exit $LASTEXITCODE