I used GPT-5.5 to figure out why my laptop battery was draining, and it found the bug in minutes
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After upgrading to macOS 27 Golden Gate Beta 2, an M4 Pro MacBook Pro experienced severe battery drain and overheating. Using GPT-5.5 via a coding agent harness called Pi, the author ran a chain of diagnostics that identified appstoreagent consuming 54-60% CPU due to an infinite retry loop in Apple Arcade metrics reporting. The root cause was a SQLite schema mismatch — a missing column (active_launch_events.recent_launch_times) caused repeated errors that triggered endless rescheduling. The fix was disabling the launchd agent with launchctl, which persists across reboots. The post highlights how AI coding agents with terminal access can be repurposed for system troubleshooting, not just software development.
