Defragment a work calendar through a tool-using agent — find the meeting debt, propose the consolidation, and (approval-gated) execute the moves.
SkillScore95Maintained
Automatic
◆Personal Assistant pack
Last verified 8/14/2026
What it changes
Passed 21 of 22 test cases with the skill, and 14 of 22 without it.
Without skill64%
With skill95%
Checks it passed that the model alone missed
Establishes focus blocks of at least 2 hours in contiguous duration.
Refrains from moving or modifying meetings designated as untouchables.
Multiplies recurring meeting costs by 26 to project six-month cost impact.
and 10 more in the full report
7 fixed14 passed either way1 still failing0 broke
Pass-rate lift
+32 pp
Tokens
+16%
Agent turns
0%
Response time
-35%
Model gemini-3.6-flashMeasured 8/14/2026v121 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 7 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 7
Prompt
I want to move a 4-person design review that my teammate Sarah organized to late afternoon. As an automated agent with calendar access, should I execute this change on the calendar directly?
What was checked, without and with the skill
Checked
Without skill
With skill
Generates a draft proposal message to the meeting owner rather than directly moving the calendar event.
Missed
Passed
case-12 · gemini-3.6-flash · 8/14/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md69 lines2 files
Calendar Defrag Skill
Calendars fragment the way disks did: nothing big fits anywhere, and every week costs more than it returns. This skill audits the week like a capacity planner (what each meeting costs, what the fragments waste), proposes the defrag, and — only with approval — executes the moves through an agent with calendar access.
What This Skill Produces
The audit — every recurring meeting priced (hours × attendees), fragmentation map of the week, the largest contiguous focus block currently possible
The defrag proposal — meetings to shorten / merge / make async / decline-with-note, moves that consolidate fragments into 2h+ focus blocks
The execution plan — exact calendar operations, shown before any are made
Required Inputs
Ask for these if not provided:
Calendar scope — which week(s), work hours, timezone
The user's real priorities — defrag serves deep work on something; name it
Untouchables — meetings that are politically or contractually fixed
Meeting-owner etiquette — may the agent propose times to others, or only move solo/owned events?
Framework
Price everything: duration × attendees = cost; recurring cost × 26 = the six-month bill. Print it — the bill changes minds that advice can't.
The fragment rule: a gap under 45 minutes is lost time; count the week's fragment waste in hours.
The defrag moves, in preference order: delete (with a note) → make async (doc + comments) → halve the duration → merge with an adjacent ritual → move to the edge of the day.
Focus blocks are placed first — 2h+ blocks at the user's stated peak hours; meetings pack around them, not vice versa.
Respect other people's calendars: moves affecting others become proposals (draft messages), never unilateral moves.
Output Format
Calendar Defrag: week of [date]
The bill: [n] meeting-hours (× attendees = [n] person-hours) · fragments waste [n]h · largest focus block today: [n]min
Meeting
Cost
Verdict
Move
After defrag: [n] focus blocks ([hours]), [n]h returned per week.
Quality Checks
Every recurring meeting carries its six-month price
Every removal has a draft note to the organizer — silent declines burn trust
Focus blocks land on stated peak hours, not leftovers
Moves touching other people are proposals with drafts, not actions
Allocate a finite budget or headcount across competing initiatives by return and strategic fit. Use when asked to allocate budget, decide where to invest, build a funding/portfolio plan, or make trade-offs across initiatives under a cap. Produces a capital-allocation plan — initiatives scored by expected return × strategic fit per dollar, a funded/unfunded split against the cap, the cut line, and the reasoning.