Running getLabels() always seems to crash the mcp server

[gdseck]

Description

While using this mcp server with claude code, I ran into an issue. Every time Claude tries to perform the getLabels() call, the mcp server "crashes. After that when I run /mcp I can see the "failed" status next to linear. I then need to relaunch claude for the linear mcp server to connect again. All other tested functions up until now work.

I did not do a deep dive to figure out the problem or look at the source so feel free to close the issue if this is in any way not cause by the server itself.

Additional information

Command: getLabels()

Parameters Tested:

• No parameters: getLabels()
• With teamId: getLabels({ teamId: "58a930a4-a10d-4fef-ac3a-3f420eb052b6" })
• With teamId + limit: getLabels({ teamId: "58a930a4-a10d-4fef-ac3a-3f420eb052b6", limit: 5 })

Result: MCP server always crashes regardless of parameters
Impact: Cannot fetch available labels for issue creation workflows

Error Pattern: The MCP server becomes unresponsive and shows "failed" status in claude mcp status checks.