[Remote] HTTP MCP Server Connection termination logs with VS Code Client

[srnagar]

Issue Description

HTTP MCP server configuration in VS Code shows error logs reporting connection termination.

Environment Information

VS Code Version:

1.105.1
7d842fb85a0275a4a8e4d7e040d2625abbf7f084
x64

GitHub Copilot Extensions:

github.copilot@1.388.0
github.copilot-chat@0.32.3
ms-azuretools.vscode-azure-github-copilot@1.0.137

MCP Configuration:

{
	"servers": {
		"Azure MCP Server": {
			"url": "http://localhost:1031/",
			"type": "http"
		}
	},
	"inputs": []
}

Last Output Logs

2025-10-27 11:51:45.822 [info] Discovered 1 tools
2025-10-27 11:56:49.885 [info] Error reading from async stream, we will reconnect: TypeError: terminated
2025-10-27 11:56:50.905 [debug] 400 status connecting to http://localhost:1031/ for async notifications; they will be disabled: {"error":{"code":-32000,"message":"Bad Request: This server does not support multiple GET requests. Start a new session to get a new GET SSE response."},"id":"","jsonrpc":"2.0"}

Steps to Reproduce

1. Configure MCP server with HTTP endpoint at http://localhost:1031/
2. Attempt to connect from VS Code client
3. Leave the VS code client idle for about 5 minutes to see the above log.

Expected Behavior

No "errors" reported in the logs when there are none. This can be turned into a "debug" level log if this is only a internal connection management log. Doesn't need to be info message for the user.

Actual Behavior

"Error reading from async stream, we will reconnect: TypeError: terminated" log as info to the user is not very useful and also not clear what "TypeError: terminated" means.

Additional Context

• Running on Windows with PowerShell
• Local development environment
• Azure MCP server running on localhost:1031

[kvenkatrajan]

@srnagar confirmed this is occurring for other mcp servers in VSCode too. Marking as low priority - post Ignite