Snowflake MCP connector fails in claude.ai chat but works in Claude Code on same account

### What happened?

The Snowflake MCP connector works reliably in Claude Code but consistently fails in the claude.ai chat interface. Reconnecting the connector does not resolve it in chat.
Request:
json{ "sql": "SELECT CURRENT_USER(), CURRENT_ROLE(), CURRENT_WAREHOUSE();" }
Error:
json{"error": "Error occurred during tool execution", "request_id": "req_011Cd4VB5en6zbcvPTVL9BpQ"}
Additional request IDs:

req_011Cd4V1wabr15ggUAaYtKqT
req_011Cd4V7gioeuKhanU7PczAC

Environment: claude.ai web interface (chat tab). Claude Code on same account works fine with same connector and credentials.

Disconnected App and reconnected multiple times to try to restore connectivity

### What did you expect to happen?

MCP connector works across both Chat and Codetabs in the CLaude.app for MACOS

### Steps to reproduce

Connect to SNowflake Connector/Authenticate Success
Navigate to chat and ask to confirm Snowflake connectivity
Navigate to Code and ask confirm Snowflake connectivity

### Area

MCP Connector (adding/managing servers)

### MCP Server (if applicable)

Claude Snowflake Connector

### Error messages or logs

```shell
json{"error": "Error occurred during tool execution", "request_id": "req_011Cd4VB5en6zbcvPTVL9BpQ"}
```

### Additional context

_No response_