Disallow MCP server on cursor-agent results in terminal error logged

[EdJex]

Where does the bug appear (feature/product)?

Cursor CLI

Describe the Bug

Disallowing access to an MCP server causes error in the terminal

Failed to load MCP server "Linear": Error: MCP server "Linear" has not been approved. Please approve it before loading.
    at ServerApprovalMiddleware.<anonymous> (/Users/ed/.local/share/cursor-agent/versions/2025.11.06-8fe8a63/index.js:161844:23)
    at Generator.next (<anonymous>)
    at fulfilled (/Users/ed/.local/share/cursor-agent/versions/2025.11.06-8fe8a63/index.js:161800:58)
Failed to load MCP server "Playwright": Error: MCP server "Playwright" has not been approved. Please approve it before loading.
    at ServerApprovalMiddleware.<anonymous> (/Users/ed/.local/share/cursor-agent/versions/2025.11.06-8fe8a63/index.js:161844:23)
    at Generator.next (<anonymous>)
    at fulfilled (/Users/ed/.local/share/cursor-agent/versions/2025.11.06-8fe8a63/index.js:161800:58)
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)

Steps to Reproduce

• Add an MCP server
• Start a session with cursor-agent
• Continue without approval of MCP server

Expected Behavior

No output, or short message informing that the server is disabled.

Screenshots / Screen Recordings

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Cursor agent: 2025.11.06-8fe8a63

Does this stop you from using Cursor

No - Cursor works, but with this issue

[deanrie]

Hey, thanks for the report. You’re right - the error output should be cleaner. When you decline MCP server approval, cursor-agent shouldn’t show the full stack trace. A simple message like “MCP server [name] wasn’t approved and will be skipped” would be much better.

This is a polish issue with cursor-agent’s error handling. I’ll pass this to the team as an improvement request.

Workaround for now: The errors are cosmetic and don’t affect functionality. cursor-agent continues working normally, so you can safely ignore the stack traces when you choose not to approve an MCP server.