$ErrorActionPreference = 'Stop'
$Root = $PSScriptRoot
$Baseline = Join-Path $Root 'rollback\prompt30k-baseline'
foreach ($Name in @('serve.py','start.ps1','smoke-test.ps1','package.json','README.md')) {
    Copy-Item -LiteralPath (Join-Path $Baseline $Name) -Destination (Join-Path $Root $Name) -Force
}
Remove-Item -LiteralPath (Join-Path $Root 'system_prompt.md') -Force -ErrorAction SilentlyContinue
Write-Output 'package prompt30k integration rolled back to verified baseline'