Comment by owendarko

There are already a bunch of open source, free, and popular "AI coding agent" extensions for VS Code:

1) Cline (1.4mil downloads)

2) Roo Code (a fork of Cline, 450k downloads)

Still a drop in the bucket compared to Cursor in terms of # of users, but they're growing pretty fast.

Disclaimer: I maintain Kilo Code, which competes with 1) and 2) so I'm pretty familiar with this space/the growth patterns.