New Linear Plugin causes Agent to not detect Atlassian MCP

Support Bug Reports
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1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

I have the Atlassian MCP server configured on my Cursor instance. All of the tools are enabled on the MCP.
When I write a test prompt, like:
Summarize Jira issue COMM-34581 for me. Use the Atlassian MCP server (getJiraIssue) to fetch details

The agent responds with

In this project’s MCP setup there is no Atlassian/Jira server and no getJiraIssue tool.

I toggle off the new Linear “plugin” and it was able to find the tool and fetch the Jira ticket

Steps to Reproduce

  • Install Atlassian MCP
  • Install Linear plugin (new)
  • Write a basic prompt to get the agent to fetch from Jira

You should see if fails to find and use the Atlassian MCP server.

When I turn the Linear plugin off, it’s able to find the Atlassian MCP server and fetch the Jira info.

Expected Behavior

The agent can still find and use the Atlassian MCP server when the Linear plugin is installed.

Operating System

MacOS

Version Information

Version: 2.5.17 (Universal)
VSCode Version: 1.105.1
Commit: 7b98dcb824ea96c9c62362a5e80dbf0d1aae4770
Date: 2026-02-17T05:58:33.110Z
Build Type: Stable
Release Track: Default
Electron: 39.3.0
Chromium: 142.0.7444.265
Node.js: 22.21.1
V8: 14.2.231.22-electron.0
OS: Darwin arm64 25.2.0

Does this stop you from using Cursor

Yes - Cursor is unusable

MCP servers crashing immediately after V2.5.20 update
3

Hey, thanks for the report. The step-by-step repro is clear. It looks like the Linear plugin is blocking MCP tool discovery on other servers.

Can you grab the request ID from the chat where the agent can’t find the Atlassian MCP? Click the three dots in the top-right of the chat, then Copy request ID. If possible, please share it both with the Linear plugin enabled and with it disabled.

I’ll pass this to the team. For now, the workaround is to keep the Linear plugin disabled.

4

Sorry, I’ve lost this chat and don’t have access to it.