Holdor – Stop your Agents from sleeping

Marcelo Farr, Johannes N, and Thomas Schranz built Holdor for a problem that sounds absurd until it happens to you: you lock your screen, walk away to grab coffee, and come back to find your AI agent got killed mid-task because macOS decided to sleep. If you've ever waited 40 minutes for Claude to refactor an auth module only to have it murdered by a screen lock, you already know why this exists. Holdor sits in your menu bar and prevents your Mac from sleeping while your agents are running—Claude, Cursor, Windsurf, VS Code, Zed, Warp, Terminal, iTerm, Ghostty, ChatGPT, all protected. It's native Swift, no Electron bloat, auto-detects when your tools launch, and uses macOS's built-in caffeinate under the hood. You set it once, forget it exists, and never lose a coding session to sleep again.

The beauty is in the specificity—this isn't another AI wrapper trying to chase the hype. It's a three-person team who said "we're tired of this specific problem" and built the fix. Regular mode prevents idle sleep, extended mode keeps the system awake even with the lid closed. Security policies at your company require locking the screen? No problem. Holdor holds the door so your agents don't have to stop. Free and open source, lightweight, zero intrusion. This is what solving one problem really well looks like.