[BUG] Custom MCP Connector Cannot Be Deleted After Failed Authentication

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

URL: https://claude.ai/customize/connectors

Summary
After adding a custom MCP connector that fails to authenticate, there is no option to delete or remove the connector. The user is left in a stuck state with a non-functional connector and no way to clean it up.

Actual Behavior

The connector is saved but fails to authenticate
There is no delete, remove, or disconnect option visible for the connector
The user is stuck with a broken, unauthenticated connector with no recovery path

<img width="1457" height="629" alt="Image" src="https://github.com/user-attachments/assets/9aec55ce-5cf6-425f-ac19-a390193b710d" />

<img width="1075" height="228" alt="Image" src="https://github.com/user-attachments/assets/73376421-f887-418c-a126-8870bc6c3734" />

What Should Happen?

Either the connector is rejected at save time with a clear validation error, or
The connector is saved but can be subsequently deleted/removed from the connectors list

Environment

Platform: claude.ai (web)
Page: /customize/connectors
Connector URL used: https://api.githubcopilot.com/mcp/
Auth method attempted: None (left OAuth fields blank, as GitHub MCP uses PAT-based auth)

Error Messages/Logs

Steps to Reproduce

Navigate to https://claude.ai/customize/connectors
Click to add a Custom Connector
Enter the MCP server URL: https://api.githubcopilot.com/mcp/
When prompted for OAuth Client ID and Secret, leave both fields blank (GitHub MCP uses a PAT, not OAuth)
Submit / save the connector

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.68

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Other

Additional Information

Actual Behavior

The connector is saved but fails to authenticate
There is no delete, remove, or disconnect option visible for the connector
The user is stuck with a broken, unauthenticated connector with no recovery path