So I updated Grov, my open source tool to include a "heartbeat" mode, (--extended-cache) that sends a minimal token (just a .) every 4 minutes during idle time.

We also just shipped a Cloud Sync feature so your agent learns from your teammates' sessions (shared reasoning traces), but the cache keep-alive is the main "hack" in this release. It currently works only for claude code CLI.

Code is Apache 2.0. Let me know what you think of the proxy implementation.