diff --git a/scripts/tests/test-plugin-selection.ps1 b/scripts/tests/test-plugin-selection.ps1
index 59b2657..7c864db 100644
--- a/scripts/tests/test-plugin-selection.ps1
+++ b/scripts/tests/test-plugin-selection.ps1
@@ -38,10 +38,11 @@ $env:AI_CONFIG_VERBOSE = $null
 if (-not $failed -or $diagnostics -notcontains 'download progress' -or $diagnostics -notcontains 'WARN test warning') { throw 'Plugin failure must retain full diagnostics and fail.' }
 $global:LASTEXITCODE = 0
 function codex { $script:observedCodexHome = $env:CODEX_HOME; $script:observedProfile = $env:USERPROFILE; '{"installed":[{"pluginId":"ponytail@ponytail"},{"pluginId":"i-have-adhd@i-have-adhd"},{"pluginId":"superpowers@openai-curated-remote"},{"pluginId":"context7@context7-marketplace"},{"pluginId":"caveman@thinkhome-caveman"}],"available":[]}' }
+$testHome = Join-Path ([System.IO.Path]::GetTempPath()) 'ai-config-plugin-test-home'
 $previousCodexHome = $env:CODEX_HOME
 $previousProfile = $env:USERPROFILE
-$null = Get-InstalledPlugins -Client Codex -HomePath 'C:/temporary profile'
-if ($observedCodexHome -ne (Join-Path 'C:/temporary profile' '.codex') -or $observedProfile -ne 'C:/temporary profile') { throw 'Plugin inspection must use the requested user home.' }
+$null = Get-InstalledPlugins -Client Codex -HomePath $testHome
+if ($observedCodexHome -ne (Join-Path $testHome '.codex') -or $observedProfile -ne $testHome) { throw 'Plugin inspection must use the requested user home.' }
 if ($env:CODEX_HOME -ne $previousCodexHome -or $env:USERPROFILE -ne $previousProfile) { throw 'Plugin inspection must restore the process environment.' }
 $script:answers.Enqueue('done')
 $selection = Select-ConfiguredPlugins -RepositoryRoot (Split-Path (Split-Path $PSScriptRoot -Parent) -Parent) -Client Codex -Mode Update
@@ -53,8 +54,8 @@ if (@($selection.Deselected | Where-Object { $_.name -eq 'Context7' }).Count -ne
 $script:managedArguments = @()
 function python { $script:managedArguments = @($args); $global:LASTEXITCODE = 0 }
 $entry = [pscustomobject]@{ name = 'Test'; codex_method = 'plugin'; codex_marketplace = '-'; codex_plugin = 'test@market' }
-Sync-ConfiguredPlugins -RepositoryRoot (Split-Path (Split-Path $PSScriptRoot -Parent) -Parent) -Client Codex -HomePath 'C:/temporary home' -Update -Summary -Entries @($entry)
-if ($managedArguments -notcontains 'sync' -or $managedArguments -notcontains '--update' -or $managedArguments -notcontains 'Test' -or $managedArguments -notcontains 'C:/temporary home') { throw 'Managed reconciliation must receive selection, home, and update mode.' }
+Sync-ConfiguredPlugins -RepositoryRoot (Split-Path (Split-Path $PSScriptRoot -Parent) -Parent) -Client Codex -HomePath $testHome -Update -Summary -Entries @($entry)
+if ($managedArguments -notcontains 'sync' -or $managedArguments -notcontains '--update' -or $managedArguments -notcontains 'Test' -or $managedArguments -notcontains $testHome) { throw 'Managed reconciliation must receive selection, home, and update mode.' }
 Sync-ConfiguredPlugins -RepositoryRoot (Split-Path (Split-Path $PSScriptRoot -Parent) -Parent) -Client Codex -Entries @()
 if ($managedArguments[-1] -ne '--selected') { throw 'Empty selection must reach reconciliation for managed cleanup.' }
 function Get-InstalledPlugins { throw 'Empty selection must not query installed plugins.' }