Hey, thanks for the detailed report.
For Auto and Composer 1, this is a known limitation. Composer 1 doesn’t support the Task tool, and Auto often gets routed to Composer 1 under the hood. That’s why subagents don’t work there.
But you’re saying Sonnet 4.5 and Opus 4.6 also fail, and that matters. Can you double check this. When you tested them, did you pick the model directly from the dropdown, not “Auto”? Auto can still route the request to Composer 1 even if you expected a different model.
To help the team debug this, we need a Request ID with Privacy Mode temporarily turned off.
- Cursor Settings > Privacy Mode > switch to “Share Data”
- Select Sonnet 4.5 (or Opus 4.6) directly from the model dropdown
- Try calling the subagent in a new chat
- Copy the Request ID (three dots in the chat > Copy Request ID)
- Share it here, then turn Privacy Mode back on
The two Request IDs you shared were generated with Privacy Mode enabled, so our logs are limited.
Related threads for context:
@KwIg, same ask if possible. Did this work on a specific model before version 2.4.37, or in Auto mode?