Hey, thanks for the report.
This looks like a model availability issue for the Linear integration. A few questions to help debug:
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Go to the Cursor Dashboard → Cloud Agents → Default Model. What model is set there? Try switching to GPT-5.2 or another available model, then rerun the task in Linear.
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What account type are you on (Free/Pro/Business)?
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When you run the agent directly in the web frontend (cursor.com/agents), does it work with Gemini 3 Pro or a different model?
There’s a similar case here: Linear integration stopped working, no visible errors, where the Linear integration issue resolved itself. Still, switching the model is a good workaround to try.
Share what you find, and if it’s still broken, we can run a test task and grab the Request ID for escalation.