Hey, thanks for the report.
This is a known issue, and the team is already working on a fix. We’re collecting similar reports here: Linear integration not working (“No default repository configured”)
For now, you can try a workaround. In your Linear comment, specify the repo explicitly:
@Cursor [repo=owner/repo-name]
Also, for investigation we need the agent-session ID from the comment that Cursor left in Linear (format: agent-session-xxxxxxxx).