diff --git a/.github/workflows/CI.ps1 b/.github/workflows/CI.ps1
new file mode 100644
index 0000000..47ed214
--- /dev/null
+++ b/.github/workflows/CI.ps1
@@ -0,0 +1,20 @@
+. $PSScriptRoot/../../esh/main.ps1
+
+try{
+	$EshellUI.Init($MyInvocation)
+	$EshellUI.Start()
+}
+catch{
+	$error | ForEach-Object {
+		Write-Output "::error file=$($_.InvocationInfo.ScriptName),line=$($_.InvocationInfo.ScriptLineNumber),col=$($_.InvocationInfo.OffsetInLine),endColumn=$($_.InvocationInfo.OffsetInLine),tittle=error::script error"
+		Write-Output "::group::script stack trace"
+		Write-Output $_.ScriptStackTrace
+		Write-Output "::endgroup::"
+		Write-Output "::group::error details"
+		Write-Output $_
+		Write-Output "::endgroup::"
+	}
+	exit 1
+}
+
+Write-Output "Nice CI!"
diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
new file mode 100644
index 0000000..bfad957
--- /dev/null
+++ b/.github/workflows/CI.yml
@@ -0,0 +1,15 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+    branches: [ "master" ]
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Run a one-line script
+        run: pwsh ./.github/workflows/CI.ps1
diff --git a/esh/src/commands/esh_base.ps1 b/esh/src/commands/esh_base.ps1
index 40ab09b..84c4925 100644
--- a/esh/src/commands/esh_base.ps1
+++ b/esh/src/commands/esh_base.ps1
@@ -64,8 +64,8 @@ function global:sudo {
 			$ShadowHandled=($Shadow.ToCharArray() | ForEach-Object {
 				if($Width -eq 0) {
 					$Width = [Math]::Max([Math]::Floor(
-						[System.Windows.Forms.TextRenderer]::MeasureText($_, $Font).Width
-					/128)-1,0)
+						[System.Windows.Forms.TextRenderer]::MeasureText($_, $Font).Width/
+					128)-1,0)
 				}
 				elseif($_ -eq $LastChar) { $Width--;return }
 				else{ $UseOriginal = $true }
diff --git a/esh/src/main.ps1 b/esh/src/main.ps1
index 2da6d19..d4aea58 100644
--- a/esh/src/main.ps1
+++ b/esh/src/main.ps1
@@ -11,7 +11,8 @@ $EshellUI = ValueEx @{
 	}
 	Im = @{
 		Sudo = ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]“Administrator”)
-		VSCodeExtension = [bool]($psEditor)
+		VSCodeExtension = [bool]($psEditor) -and ($Host.Name -eq 'Visual Studio Code Host')
+		Editor = [bool]($psEditor)
 		WindowsPowerShell = (Split-Path $(Split-Path $PROFILE) -Leaf) -eq 'WindowsPowerShell'
 		ISE = [bool]($psISE)
 		FirstLoading = $EshellUI -eq $LastExitCode