opencode-wakelock

Prevents macOS from sleeping while an OpenCode agent session is actively running. Releases the wake lock the moment all sessions go idle or error. Supports multiple parallel OpenCode instances.

How it works

Hooks into the session.status event:

• status: "active" → registers the session and ensures caffeinate -i is running
• status: "idle" or "error" → deregisters the session; stops caffeinate when no sessions remain active

Session state is tracked via files in /tmp/opencode-wakelock/sessions/. A single caffeinate process is shared across all OpenCode instances. Stale session files from crashed instances are automatically detected and removed.

macOS only. On other platforms the plugin loads but does nothing.

Install

Add to your opencode.json:

{
  "$schema": "https://opencode.ai/config.json",
  "plugin": ["opencode-wakelock"]
}

Features

• Multi-instance safe: Multiple OpenCode instances can run in parallel without conflicts
• Automatic cleanup: Stale session files from crashed instances are automatically detected and removed
• Efficient: Only one caffeinate process runs, shared across all instances
• Zero overhead on non-macOS: Plugin loads but does nothing on other platforms