I would like to suggest a feature that would make subagent-based workflows much easier to manage in the IDE.
Right now, the IDE shows context information for the main agent, but not for subagents. When working with subagents, this is important not only because of limits, but also because of visibility and tuning.
If I could see the current context window size, and the current context usage, as well within the subagent for each one of those, I would be able to better understand how work is being distributed and make better decisions about task decomposition. For example, if one subagent is consistently getting too much context, I may want to split that work further or redesign how tasks are delegated.
This would be useful for:
tracking how much context each subagent is using,
tuning delegation strategies,
deciding when to split work into smaller sub-tasks,
comparing how efficiently different subagents are being used,
improving orchestration and overall workflow design.
Ideally, this would be visible per subagent in a simple way, similar to the visibility already available for the main agent. Even a basic indicator showing context window size and current usage would already be very helpful.
If there is already a way to inspect this through an extension or so I would also appreciate guidance on how to access it.
In the current state of Cursor—and this has been the case for a long time, since it became possible to start sub-agents—there are two major limitations in the new tab where the sub-agent is launched:
First, there is no way to interact with it; there is no chat window where we can communicate with the sub-agent.
Second, we cannot see the context window. We do not know whether it is at 20% or 80%.
These two factors are, of course, incredibly limiting.