Add cross-window sub-agent

Feature request for product/service

Cursor IDE

Describe the request

I urgently need a cross-window sub-agent feature.

For example: Cursor window 1 is my project, which depends on libraries A and B. Cursor window 2 displays the source code of library A, and cursor window 3 displays the source code of library B.

When the main project encounters a problem that needs investigation, it sends a sub-agent request to cursor window 1 or 2, waits, receives the result, returns to the main project, and resolves the problem.

Currently, I have to place the source code of libraries A and B (which is usually quite large) in my project directory and add it to a .gitignore file so that the agent can read and index it, but I don’t like doing this.