Meeting Guard.Know before your battery becomes the problem.

The four severity levels

Sensei reads the next 4 hours of calendar events through EventKit (on-device; calendar data never leaves the Mac) and scores each meeting against your current battery + observed drain rate. The four levels:

• Comfortable. Battery will easily outlast the meeting. Sensei stays silent.
• Tight. Cutting it close but probably fine. One nudge 30 minutes before so you can decide.
• Critical. The laptop will likely die before the meeting ends. Warnings fire at 30, 15, 5, and 1 minute before the meeting, each one showing the exact minute the laptop is projected to die and a concrete remedy: "22 minutes on the charger and it lasts through the meeting."
• Catastrophic. The meeting starts before the battery would last. Warned immediately, with the time-to-death and the plug-in minutes-needed.

Plug-in cancels pending warnings

Once you plug in, Sensei recomputes the projection. If the new runtime estimate clears the meeting comfortably, queued warnings cancel themselves silently. You don’t get a "never mind"; the warnings just stop. The goal is to nudge you when there’s still time to fix the problem, not to keep nagging once the problem is solved.

Privacy by default

Calendar event titles are readable in the warning by default so you can tell which meeting is at risk. One toggle in Settings → Meeting Guard redacts the titles, so the warning becomes "Next meeting" instead of "Quarterly review with Sarah." The data itself never leaves your Mac either way; the toggle only affects whether the notification text includes the title.

Meeting Guard is Premium. It’s included in the free trial and unlocks with a Lifetime license. The 4-hour lookahead is the default; the value can be lowered if you prefer shorter horizons, but lower values lose the early-Catastrophic warning. For tighter everyday timing, pair this with custom thresholds.