Calendar Event Hygiene Auditor

Analyze my calendar for the past {{num_weeks}} weeks.
Time in meetings: {{meeting_hours}}/week.
My availability gaps: {{availability_type}}.

For each meeting, assess:
1. Whether it's still essential
2. Duration efficiency (could it be shorter?)
3. Attendee necessity (could some be async?)
4. Consolidation opportunity (merge overlapping topics)
5. Format optimization (video/async/hybrid)

Provide:
- Meetings to cancel/decline
- Suggested duration cuts
- Consolidation proposals
- New calendar blocking (focus time, buffer)
- Estimated hours freed up