Calendar Capacity Audit¶

Time-capacity audit — instantiates Overcommitment Prevention

Totals the real time that meetings, deadlines, prep, travel, and recovery already claim against the hours actually available — before another commitment is added to the calendar.

Calendar Capacity Audit builds a usable-time model for a person or team and tallies what is already committed against it, so a calendar that looks half-empty is revealed as already full. It starts from raw hours and subtracts the invisible load — prep before meetings, travel, context-switching, recovery, protected focus blocks — then charges each accepted item its full footprint, not its nominal slot. Its distinguishing idea is counting the hidden time around commitments and treating focus and recovery as protected capacity rather than free space waiting to be filled. It is the time-domain answer to an overconfident capacity model.

Example¶

A director's calendar shows 12 open hours next week, so she is about to agree to lead a new working group (~6 hrs). The audit rebuilds the real picture. Of 40 nominal hours: 9 are recurring 1:1s; each of her 8 external meetings needs ≈45 min prep and 15 min decompression (8 hrs); a Thursday offsite adds travel (3 hrs); she protects two 2-hour deep-work blocks for the board memo (4 hrs) plus a recovery buffer for overruns (3 hrs). Usable-and-uncommitted time: ≈2 hrs, not 12. The audit issues no verdict — but "leading a 6-hour working group" now visibly means displacing the board-memo focus blocks, and an easy yes has become an explicit trade.

How it works¶

The signature is loading the around-commitment costs. Each accepted item is charged its full footprint — prep, the event itself, travel, and recovery — rather than the number on the invite, and protected focus and recovery blocks are entered as commitments-to-self, not as slack. Available time is then nominal hours minus those footprints minus the protected blocks, so the number that survives is the time the person could actually promise.

Tuning parameters¶

Overhead multipliers — the prep/decompression/travel factors applied per meeting type. Higher multipliers are more realistic but read as pessimistic and invite pushback.
Protected-block size (recovery margin) — how much focus and recovery time is fenced as untouchable. More protection preserves deep work and resilience; less frees short-term capacity.
Granularity — audit an individual, a team, or a role. Team-level captures shared coordination load but blurs who specifically is overloaded.
Horizon — one week versus a rolling quarter. Short horizons miss deadline pile-ups; long ones drown in speculative load.
Interruption reserve — hours held for unplanned asks. A larger reserve absorbs reality; a smaller one maximizes planned output.

When it helps, and when it misleads¶

Its strength is defeating the "empty slot equals free time" illusion that drives calendar overcommitment, and exposing the systematic under-counting of prep, travel, and recovery. Its limit is that time is only one currency — a calendar can balance while the work is cognitively or emotionally overloaded, and the audit cannot see quality. Because the overhead multipliers are subjective, the honest failure is that they can be tuned to justify a conclusion already reached ("I'm slammed" or "I'm wide open"), and even a careful audit tends to under-book its own tasks — the planning fallacy in miniature.^[1] The discipline is to calibrate the multipliers against logged time occasionally, and to treat protected blocks as real commitments a new yes must explicitly displace.

How it implements the components¶

Calendar Capacity Audit realizes the time-capacity-modelling side of the archetype:

real_capacity_model — its core output: usable hours after subtracting overhead, coordination, and protected time.
capacity_accounting — tallies committed footprints against that usable-time model to show remaining headroom.
protected_recovery_margin — the fenced focus, recovery, and interruption buffers, entered as untouchable capacity.

Sizing time and not money or promise-count, it does not hold a monetary reserve (Budget Encumbrance Control), cap the number of promises (Commitment Budget), or radiate a live cross-team signal (Capacity Dashboard).

Instantiates: Overcommitment Prevention — it produces the honest time-capacity model that acceptance decisions must fit inside.
Sibling mechanisms: Budget Encumbrance Control · Capacity Dashboard · Commitment Budget · Backlog Commitment Review · Commitment Burndown Review · Intake Capacity Checklist · Portfolio Intake Gate · Renegotiation Notice Protocol · Sales Capacity Alignment Review · Work-in-Progress Cap

Notes¶

The audit is per-actor. Summing individual calendars into a team number double-counts shared coordination time (one meeting appears on five calendars) — a team-level audit needs the coordination load booked once, not five times, or it over-states both load and capacity.

References¶

[1] The planning fallacy (Kahneman & Tversky) — the robust tendency to underestimate how long one's own tasks will take, even knowing that similar past tasks ran long. It is why a carved-out block of focus time is so often eaten by the very work it was meant to protect, and why the audit's overhead multipliers should be calibrated against logged reality rather than optimism. ↩