Hey, thanks for the report.
This is a known issue. A few users have reported the same thing:
- Task Tool Missing for Custom Agents in .cursor/agents/ + Documentation Pages Return Errors
- SubAgent invocation not working anymore on most recent nightly and Early access builds
The issue is that even when subagent_delegation_context is injected into the prompt, the Task tool itself doesn’t get attached to the agent. The team is aware, there’s no timeline yet, but your report helps with prioritization.
Workaround: roll back to 2.4.21 (like you already did). Subagents work there.
Can you share the Request ID from a chat where the Task tool didn’t show up? It’ll help the team debug this (you’ll need to temporarily disable Privacy Mode):
- Cursor Settings
CMD + Shift + J - Find “Privacy Mode” and turn it off
- Create a new chat and reproduce the issue
- Click the three dots in the top-right of the chat > Copy Request ID
- Send it here
After that, you can turn Privacy Mode back on right away.