startup failures

[MWG-Logan]

Describe the bug

Starting the Github MCP in Visual Studio fails

Affected version

N/A? Whatever https://api.githubcopilot.com/mcp is at the time of entering this issue.

Steps to reproduce the behavior

1. Add the below to .mcp.json in VisualStudio

       "github": {
         "url": "https://api.githubcopilot.com/mcp"
       },
   

2. Attempt to start the MCP
3. Observe the failed start

Expected vs actual behavior

I'd expect my MCP to start, and it does not.

Logs

[Conversations Information] [Conversations] Operation a57949ec-a3d7-4342-b80f-9c987f33f4a6 Start; Starting MCP client for server 'github'
[Conversations Information] [Conversations] Operation a57949ec-a3d7-4342-b80f-9c987f33f4a6 End; Result: Failure; Failed to start MCP client for server 'github': A task was canceled.
[Conversations Information] Copilot auth status: OK. Copilot badge status: Active
[Conversations Error] [Conversations] Transition effects failed during (Failed) for server 'github': System.Threading.Tasks.TaskCanceledException: A task was canceled.
 ---> System.Threading.Tasks.TaskCanceledException: A task was canceled.
   at System.Threading.Tasks.TaskCompletionSourceWithCancellation`1.WaitWithCancellationAsync(CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)
   at System.Net.Http.DiagnosticsHandler.SendAsyncCore(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
   at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
   at Microsoft.VisualStudio.Conversations.Service.Mcp.Auth.BearerAuthDelegatingHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Net.Http.HttpClient.<SendAsync>g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)
   --- End of inner exception stack trace ---
   at System.Net.Http.HttpClient.HandleFailure(Exception e, Boolean telemetryStarted, HttpResponseMessage response, CancellationTokenSource cts, CancellationToken cancellationToken, CancellationTokenSource pendingRequestsCts)
   at System.Net.Http.HttpClient.<SendAsync>g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)
   at ModelContextProtocol.Client.McpHttpClient.SendAsync(HttpRequestMessage request, JsonRpcMessage message, CancellationToken cancellationToken)
   at ModelContextProtocol.Client.StreamableHttpClientSessionTransport.SendHttpRequestAsync(JsonRpcMessage message, CancellationToken cancellationToken)
   at ModelContextProtocol.Client.AutoDetectingClientSessionTransport.InitializeAsync(JsonRpcMessage message, CancellationToken cancellationToken)
   at ModelContextProtocol.Client.AutoDetectingClientSessionTransport.InitializeAsync(JsonRpcMessage message, CancellationToken cancellationToken)
   at ModelContextProtocol.McpSession.SendRequestAsync(JsonRpcRequest request, CancellationToken cancellationToken)
   at ModelContextProtocol.McpEndpointExtensions.SendRequestAsync[TParameters,TResult](IMcpEndpoint endpoint, String method, TParameters parameters, JsonTypeInfo`1 parametersTypeInfo, JsonTypeInfo`1 resultTypeInfo, RequestId requestId, CancellationToken cancellationToken)
   at ModelContextProtocol.Client.McpClient.ConnectAsync(CancellationToken cancellationToken)
   at ModelContextProtocol.Client.McpClient.ConnectAsync(CancellationToken cancellationToken)
   at ModelContextProtocol.Client.McpClientFactory.CreateAsync(IClientTransport clientTransport, McpClientOptions clientOptions, ILoggerFactory loggerFactory, CancellationToken cancellationToken)
   at ModelContextProtocol.Client.McpClientFactory.CreateAsync(IClientTransport clientTransport, McpClientOptions clientOptions, ILoggerFactory loggerFactory, CancellationToken cancellationToken)
   at Microsoft.VisualStudio.Conversations.Service.Mcp.Lifecycle.StartClientEffect.ExecuteAsync(LifecycleDependencies ctx, TransitionState state, CancellationToken ct)
   at Microsoft.VisualStudio.Conversations.Service.Mcp.Lifecycle.LifecycleExecutor.ExecuteAsync(TransitionResult transition, ServerContext serverContext, IMcpClient currentClient, LifecycleDependencies deps, CancellationToken ct)