Cachebell

Get a reminder before your OpenCode prompt cache expires. Continuing the conversation while the cache is available means paying less for repeated input.

CacheBell plays a short sound and shows a desktop notification about two minutes beforehand, while the agent is idle.

Install

Add to plugin in ~/.config/opencode/opencode.json, keeping your other entries:

{
  "plugin": ["opencode-cachebell@0.2.0"]
}

Restart OpenCode. It installs the package automatically.

Supports macOS and WSL, with best-effort native Windows and Linux desktop support.

Sounds

Three original sounds are included:

Sound	Style
Pulse (default)	Short, rising electronic signal
Chime	Two warm bell notes
Knock	Soft, woody double-tap

To choose a sound, replace the plugin entry with:

{
  "plugin": [["opencode-cachebell@0.2.0", { "sound": "chime" }]]
}

Use "pulse", "chime", "knock", or false for silence. Restart after changes.

Timing

Defaults: 5 minutes for Claude, 30 minutes for GPT-5.6+. The clock starts with the model request, not when its answer finishes. Other models and custom cache durations need an override. These are estimates, not guaranteed cache hits.

Configuration and troubleshooting | npm | MIT