What
Claude Code now automatically prevents macOS from sleeping during long-running operations.
Usage: Automatic—no user action required.
Details
- Uses macOS
caffeinate -icommand to prevent idle sleep - Active only during operations that need it (reference-counted)
- Automatically restarts caffeinate every 4 minutes to maintain prevention during very long tasks
- Properly cleans up on session exit
- Only applies to macOS; no effect on other platforms
Evidence
OW9() at line 517291 (caffeinate, -i, -t, "Started caffeinate to prevent sleep")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.