43. The calendar travel-time guard
📣 Real-user report — shared publicly by a Muse user, not independently verified.
The job: Trevin Chow spent months refining a prompt whose only job is to protect travel time on his calendar. He once tried to build this as a standalone app but gave up after six months stuck in Google's approval process — now the agent just does it. He published the prompt publicly, and notes the same pattern works with other agents too.
Guard the travel time on my calendar. - Scan my calendar for the next [2 weeks] and identify trips: flights, hotel bookings, and travel days. - For each trip, block travel buffers: [2 hours] before departure and [1 hour] after arrival. - If a new meeting invite conflicts with a travel block, decline it with: "Traveling that day — can we move this?" - Never delete or move a travel block without asking me first. Send me a summary of what you protected.
What Muse will do:
- Give the agent calendar read/write access
- Define your travel buffer rules once
- Set the auto-decline message for conflicts
- Review the weekly protection summary
Why it works: Calendar Tetris is death by a thousand invites. A standing guard prompt turns a recurring 10-minute chore into a background rule — and unlike a native app, it needs no app-store approval.
Reported by @trevin on X · Sep 2026
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