diff --git a/src/Microsoft.Agents.A365.DevTools.Cli/Services/Internal/MicrosoftGraphTokenProvider.cs b/src/Microsoft.Agents.A365.DevTools.Cli/Services/Internal/MicrosoftGraphTokenProvider.cs
index 5ca80187..f808925f 100644
--- a/src/Microsoft.Agents.A365.DevTools.Cli/Services/Internal/MicrosoftGraphTokenProvider.cs
+++ b/src/Microsoft.Agents.A365.DevTools.Cli/Services/Internal/MicrosoftGraphTokenProvider.cs
@@ -108,7 +108,7 @@ public MicrosoftGraphTokenProvider(
                 useDeviceCode);
 
             var script = BuildPowerShellScript(tenantId, validatedScopes, useDeviceCode, clientAppId);
-            var result = await ExecuteWithFallbackAsync(script, useDeviceCode, ct);
+            var result = await ExecuteWithFallbackAsync(script, ct);
             var token = ProcessResult(result);
 
             if (string.IsNullOrWhiteSpace(token))
@@ -216,17 +216,16 @@ private static string BuildScopesArray(string[] scopes)
 
     private async Task<CommandResult> ExecuteWithFallbackAsync(
         string script,
-        bool useDeviceCode,
         CancellationToken ct)
     {
         // Try PowerShell Core first (cross-platform)
-        var result = await ExecutePowerShellAsync("pwsh", script, useDeviceCode, ct);
+        var result = await ExecutePowerShellAsync("pwsh", script, ct);
 
         // Fallback to Windows PowerShell if pwsh is not available
         if (!result.Success && IsPowerShellNotFoundError(result))
         {
             _logger.LogDebug("PowerShell Core not found, falling back to Windows PowerShell");
-            result = await ExecutePowerShellAsync("powershell", script, useDeviceCode, ct);
+            result = await ExecutePowerShellAsync("powershell", script, ct);
         }
 
         return result;
@@ -235,33 +234,17 @@ private async Task<CommandResult> ExecuteWithFallbackAsync(
     private async Task<CommandResult> ExecutePowerShellAsync(
         string shell,
         string script,
-        bool useDeviceCode,
         CancellationToken ct)
     {
         var arguments = BuildPowerShellArguments(shell, script);
 
-        if (useDeviceCode)
-        {
-            // Use streaming for device code flow so user sees the instructions in real-time
-            return await _executor.ExecuteWithStreamingAsync(
-                command: shell,
-                arguments: arguments,
-                workingDirectory: null,
-                outputPrefix: "",
-                interactive: true, // Allow user to see device code instructions
-                cancellationToken: ct);
-        }
-        else
-        {
-            // Use standard execution for browser flow (captures output silently)
-            return await _executor.ExecuteAsync(
-                command: shell,
-                arguments: arguments,
-                workingDirectory: null,
-                captureOutput: true,
-                suppressErrorLogging: true, // We handle logging ourselves
-                cancellationToken: ct);
-        }
+        return await _executor.ExecuteWithStreamingAsync(
+            command: shell,
+            arguments: arguments,
+            workingDirectory: null,
+            outputPrefix: "",
+            interactive: true,
+            cancellationToken: ct);
     }
 
     private static string BuildPowerShellArguments(string shell, string script)
diff --git a/src/Tests/Microsoft.Agents.A365.DevTools.Cli.Tests/Services/MicrosoftGraphTokenProviderTests.cs b/src/Tests/Microsoft.Agents.A365.DevTools.Cli.Tests/Services/MicrosoftGraphTokenProviderTests.cs
index 22db4bc6..6952a08a 100644
--- a/src/Tests/Microsoft.Agents.A365.DevTools.Cli.Tests/Services/MicrosoftGraphTokenProviderTests.cs
+++ b/src/Tests/Microsoft.Agents.A365.DevTools.Cli.Tests/Services/MicrosoftGraphTokenProviderTests.cs
@@ -29,11 +29,11 @@ public async Task GetMgGraphAccessTokenAsync_WithValidClientAppId_IncludesClient
         var clientAppId = "87654321-4321-4321-4321-cba987654321";
         var expectedToken = "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0.signature";
 
-        _executor.ExecuteAsync(
+        _executor.ExecuteWithStreamingAsync(
             Arg.Any<string>(),
             Arg.Is<string>(args => args.Contains($"-ClientId '{clientAppId}'")),
             Arg.Any<string?>(),
-            Arg.Any<bool>(),
+            Arg.Any<string>(),
             Arg.Any<bool>(),
             Arg.Any<CancellationToken>())
             .Returns(new CommandResult { ExitCode = 0, StandardOutput = expectedToken, StandardError = string.Empty });
@@ -45,11 +45,11 @@ public async Task GetMgGraphAccessTokenAsync_WithValidClientAppId_IncludesClient
 
         // Assert
         token.Should().Be(expectedToken);
-        await _executor.Received(1).ExecuteAsync(
+        await _executor.Received(1).ExecuteWithStreamingAsync(
             Arg.Is<string>(cmd => cmd == "pwsh" || cmd == "powershell"),
             Arg.Is<string>(args => args.Contains($"-ClientId '{clientAppId}'")),
             Arg.Any<string?>(),
-            Arg.Any<bool>(),
+            Arg.Any<string>(),
             Arg.Any<bool>(),
             Arg.Any<CancellationToken>());
     }
@@ -62,11 +62,11 @@ public async Task GetMgGraphAccessTokenAsync_WithoutClientAppId_OmitsClientIdPar
         var scopes = new[] { "User.Read" };
         var expectedToken = "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0.signature";
 
-        _executor.ExecuteAsync(
+        _executor.ExecuteWithStreamingAsync(
             Arg.Any<string>(),
             Arg.Is<string>(args => !args.Contains("-ClientId")),
             Arg.Any<string?>(),
-            Arg.Any<bool>(),
+            Arg.Any<string>(),
             Arg.Any<bool>(),
             Arg.Any<CancellationToken>())
             .Returns(new CommandResult { ExitCode = 0, StandardOutput = expectedToken, StandardError = string.Empty });
@@ -78,11 +78,11 @@ public async Task GetMgGraphAccessTokenAsync_WithoutClientAppId_OmitsClientIdPar
 
         // Assert
         token.Should().Be(expectedToken);
-        await _executor.Received(1).ExecuteAsync(
+        await _executor.Received(1).ExecuteWithStreamingAsync(
             Arg.Any<string>(),
             Arg.Is<string>(args => !args.Contains("-ClientId")),
             Arg.Any<string?>(),
-            Arg.Any<bool>(),
+            Arg.Any<string>(),
             Arg.Any<bool>(),
             Arg.Any<CancellationToken>());
     }
@@ -152,11 +152,11 @@ public async Task GetMgGraphAccessTokenAsync_WhenExecutionFails_ReturnsNull()
         var tenantId = "12345678-1234-1234-1234-123456789abc";
         var scopes = new[] { "User.Read" };
 
-        _executor.ExecuteAsync(
+        _executor.ExecuteWithStreamingAsync(
             Arg.Any<string>(),
             Arg.Any<string>(),
             Arg.Any<string?>(),
-            Arg.Any<bool>(),
+            Arg.Any<string>(),
             Arg.Any<bool>(),
             Arg.Any<CancellationToken>())
             .Returns(new CommandResult { ExitCode = 1, StandardOutput = string.Empty, StandardError = "PowerShell error" });
@@ -178,11 +178,11 @@ public async Task GetMgGraphAccessTokenAsync_WithValidToken_ReturnsToken()
         var scopes = new[] { "User.Read" };
         var expectedToken = "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0.signature";
 
-        _executor.ExecuteAsync(
+        _executor.ExecuteWithStreamingAsync(
             Arg.Any<string>(),
             Arg.Any<string>(),
             Arg.Any<string?>(),
-            Arg.Any<bool>(),
+            Arg.Any<string>(),
             Arg.Any<bool>(),
             Arg.Any<CancellationToken>())
             .Returns(new CommandResult { ExitCode = 0, StandardOutput = expectedToken, StandardError = string.Empty });
@@ -223,11 +223,11 @@ public async Task GetMgGraphAccessTokenAsync_EscapesSingleQuotesInClientAppId()
         var clientAppId = "87654321-4321-4321-4321-cba987654321";
         var expectedToken = "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0.signature";
 
-        _executor.ExecuteAsync(
+        _executor.ExecuteWithStreamingAsync(
             Arg.Any<string>(),
             Arg.Is<string>(args => !args.Contains("''")), // Should not have escaped quotes for valid GUID
             Arg.Any<string?>(),
-            Arg.Any<bool>(),
+            Arg.Any<string>(),
             Arg.Any<bool>(),
             Arg.Any<CancellationToken>())
             .Returns(new CommandResult { ExitCode = 0, StandardOutput = expectedToken, StandardError = string.Empty });