Treat context switches as the budget line they are — the switch census (how fragmented the week really is), the batching moves that consolidate scattered same-kind work, the calendar defrag that turns Swiss cheese into slabs, and the switch-cost line for saying no.
SkillScore91Maintained
Automatic
◆Personal Assistant pack
Last verified 8/14/2026
What it changes
Passed 20 of 22 test cases with the skill, and 13 of 22 without it.
Without skill59%
With skill91%
Checks it passed that the model alone missed
Specifies a follow-up re-census interval of 2 weeks.
Treats gaps under 30 minutes between meetings as lost switch time.
Schedules a follow-up calendar re-census two weeks after implementation.
and 6 more in the full report
8 fixed12 passed either way1 still failing1 broke
Pass-rate lift
+32 pp
Tokens
+44%
Agent turns
0%
Response time
-28%
Model gemini-3.6-flashMeasured 8/14/2026v120 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 8 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 8
Prompt
I just completed my initial calendar defragmentation and moved all my movable meetings into Tuesday and Thursday afternoon corridors. When should I run my next calendar census to verify if the defragmented schedule held?
What was checked, without and with the skill
Checked
Without skill
With skill
Specifies running the follow-up calendar census two weeks after implementation.
Missed
Passed
case-09 · 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.md60 linessingle file
Context Switch Budget Skill
The calendar shows eight meetings totaling four hours and calls the other four "free" — but fifteen-minute gaps between meetings are free the way confetti is paper: technically yes, usable no. Each switch costs re-entry time (the mind reloads the last context for 10–20 minutes), and a day of eight switches can contain zero real work while looking half-empty. The budget discipline: census the week's actual switches (the number shocks reliably), batch the same-kind work (meetings to meeting-blocks, reviews to review-hours, chat to email-triage-system-style windows), defrag the calendar (consolidate the gaps into slabs worth having), and price new fragmentation at the door.
What This Skill Produces
The switch census — the week's transitions counted and typed (meeting↔work, task↔task, interrupt-driven), with the fragmentation map
The batching plan — same-kind work consolidated: the meeting corridors, the review hour, the comms windows
The defrag moves — the specific reschedules that convert cheese-holes into slabs (deep-work-blocking receives them)
The door pricing — the phrases that protect the defragged shape ("Tuesday corridor?" as the default counter-offer)
Required Inputs
Ask for these if not provided:
A real week's calendar — last week, as it actually ran (including the unscheduled interruptions the user remembers); the census works on evidence
The work's kinds — what recurs: meetings, reviews, writing, admin, comms; batching needs the categories named
The movable vs. fixed — which meetings the user controls or can counter-propose (recurring-meeting-pruner verdicts feed this), and the team's collaboration-hours constraints
The interrupt sources — what punches through ad hoc (chat, drive-bys, "quick calls") — each gets a batching destination or a boundary
Framework: The Budget Rules
Census first — the number is the intervention: count last week's switches (every transition between unlike work counts; every meeting-to-meeting gap under 30 minutes counts as a lost slab). The typical knowledge-week runs 30–50; seeing "41 switches, longest unbroken stretch: 52 minutes" reframes the problem from "I'm unproductive" to "my week is structurally incapable of depth" — which is true, and fixable.
Batch by kind, on a rhythm: meetings compress into corridors (Tue/Thu afternoons — the counter-offer default) · reviews/approvals into a daily half-hour · comms into 2–3 windows · admin into one Friday hour. Same-kind work shares context; batching converts eight reloads into one.
Defrag the residue: the gaps that remain after batching get consolidated — the two 45-minute holes become one 90-minute slab by moving one meeting ("could we do 2pm instead of 3?"— movers rarely mind, they just never think to ask). Slabs go to the deep-work design; the census re-runs in two weeks to verify the shape held.
Interrupts get destinations, not resistance: the chat that punches through routes to the comms windows (with the office-hours-design never-waits line honored) · drive-bys get the warm deferral ("in the middle of a thing — grab me at 3?") · the genuinely-urgent keeps its lane, defined. Fighting interrupts case-by-case loses; routing them by class holds.
Price fragmentation at the door: every incoming meeting request gets the corridor counter-offer by default ("Could this land Tuesday PM? I batch meetings there") — most acceptors don't care where, so the asker's shape wins by initiative. The switch-cost line, for when justification helps: "a 3pm call splits my only deep block — the 10am corridor keeps me sharp for it anyway."
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