[BUG] Add connectors not possible and /mcp command doesn't work in fleetview

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?

"Add connectors" UI provides no way to add custom MCP URLs

The "+" → "Add connectors" directory only shows pre-built Anthropic partner connectors, with no option to add a custom MCP server URL. Users must discover on their own that this is done via Cowork instead. The /mcp command also doesn't work in FleetView, making it impossible to diagnose MCP connection issues from within the UI. A simple "Add custom MCP URL" option in the connectors directory would save significant time.

What Should Happen?

show screen where i can manage and add connectors.
/mcp should also work in fleetview

Error Messages/Logs

Steps to Reproduce

"Add connectors" UI provides no way to add custom MCP URLs

The "+" → "Add connectors" directory only shows pre-built Anthropic partner connectors, with no option to add a custom MCP server URL. Users must discover on their own that this is done via Cowork instead. The /mcp command also doesn't work in FleetView, making it impossible to diagnose MCP connection issues from within the UI. A simple "Add custom MCP URL" option in the connectors directory would save significant time.

Claude Model

Sonnet (default)

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

1.8555.0

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

_No response_