diff --git a/TASKS.md b/TASKS.md
index 3db0cfb..4a37d27 100644
--- a/TASKS.md
+++ b/TASKS.md
@@ -36,7 +36,7 @@
 - [x] Add startup migration application.
 
 ## Testing & Quality
-- [ ] Happy-path smoke test script (manual or minimal automated) for phase flow.
+- [x] Happy-path smoke test script (manual or minimal automated) for phase flow.
 - [ ] Lint/format via `dotnet format` (optional) and ensure build succeeds.
 
 ## Deployment
diff --git a/scripts/smoke.ps1 b/scripts/smoke.ps1
new file mode 100644
index 0000000..88fc184
--- /dev/null
+++ b/scripts/smoke.ps1
@@ -0,0 +1,78 @@
+Param(
+    [string]$BaseUrl = "http://localhost:5116",
+    [string]$AdminKey = $env:ADMIN_PASSWORD
+)
+
+if (-not $AdminKey) {
+    Write-Error "Set ADMIN_PASSWORD env var or pass -AdminKey."
+    exit 1
+}
+
+$session = New-Object Microsoft.PowerShell.Commands.WebRequestSession
+
+function Invoke-Json {
+    param(
+        [Parameter(Mandatory=$true)][string]$Method,
+        [Parameter(Mandatory=$true)][string]$Path,
+        [object]$Body = $null,
+        [hashtable]$Headers = @{}
+    )
+    $uri = "$BaseUrl$Path"
+    $params = @{
+        Method = $Method
+        Uri    = $uri
+        WebSession = $session
+        Headers = $Headers
+    }
+    if ($Body) { $params.Body = ($Body | ConvertTo-Json -Depth 5); $params.ContentType = "application/json" }
+    try {
+        $response = Invoke-WebRequest @params -ErrorAction Stop
+        if ($response.Content) { return ($response.Content | ConvertFrom-Json) }
+        return $null
+    } catch {
+        Write-Error "Request failed: $Method $uri`n$($_.Exception.Message)"
+        if ($_.Exception.Response -and $_.Exception.Response.GetResponseStream()) {
+            $reader = New-Object IO.StreamReader $_.Exception.Response.GetResponseStream()
+            Write-Error "Response body:`n$($reader.ReadToEnd())"
+        }
+        exit 1
+    }
+}
+
+Write-Host "1) Health check"
+Invoke-Json -Method GET -Path "/health" | Out-Host
+
+Write-Host "`n2) Admin reset"
+Invoke-Json -Method POST -Path "/api/admin/reset" -Headers @{ "X-Admin-Key" = $AdminKey } | Out-Host
+
+Write-Host "`n3) Set player name"
+$me = Invoke-Json -Method POST -Path "/api/me/name" -Body @{ name = "SmokeTester" }
+$me | Out-Host
+
+Write-Host "`n4) Submit three suggestions"
+$ids = @()
+1..3 | ForEach-Object {
+    $resp = Invoke-Json -Method POST -Path "/api/suggestions" -Body @{
+        name = "Game $_"
+        genre = "Genre $_"
+        description = "Autogenerated suggestion $_"
+    }
+    $ids += $resp.id
+    $resp | Out-Host
+}
+
+Write-Host "`n5) Reveal phase"
+Invoke-Json -Method POST -Path "/api/admin/phase" -Headers @{ "X-Admin-Key" = $AdminKey } -Body @{ phase = "Reveal" } | Out-Host
+Invoke-Json -Method GET -Path "/api/suggestions/all" | Out-Host
+
+Write-Host "`n6) Vote phase"
+Invoke-Json -Method POST -Path "/api/admin/phase" -Headers @{ "X-Admin-Key" = $AdminKey } -Body @{ phase = "Vote" } | Out-Host
+Invoke-Json -Method POST -Path "/api/votes" -Body @{ suggestionId = $ids[0]; score = 10 } | Out-Host
+Invoke-Json -Method POST -Path "/api/votes" -Body @{ suggestionId = $ids[1]; score = 7 } | Out-Host
+Invoke-Json -Method POST -Path "/api/votes" -Body @{ suggestionId = $ids[2]; score = 5 } | Out-Host
+
+Write-Host "`n7) Results phase"
+Invoke-Json -Method POST -Path "/api/admin/phase" -Headers @{ "X-Admin-Key" = $AdminKey } -Body @{ phase = "Results" } | Out-Host
+Invoke-Json -Method GET -Path "/api/results" | Out-Host
+
+Write-Host "`nSmoke test completed."