---
title: Post Shift
description: "### Definition The event-triggered after-action discipline, mirror of pre-shift. Every shift, period, launch, or season closes with a structured look-back: what we expected, what happened, what the delta tells us. Written assumption refresh -- verbal post-shifts go stale invisibly, written…"
url: "https://kb.jeffreysummers.com/docs/post-shift/"
updated: "2026-08-13"
category: "The Operator's Dictionary"
---

# Post Shift

### Definition

The event-triggered after-action discipline, mirror of pre-shift. Every shift, period, launch, or season closes with a structured look-back: what we expected, what happened, what the delta tells us. Written assumption refresh -- verbal post-shifts go stale invisibly, written ones can be audited. Event-triggered counterpart to [Reality Check]'s calendar trigger.

### Explanation

The insistence on written form is not a bureaucratic preference -- it's the whole point. A verbal post-shift conversation feels productive in the moment and evaporates by the next shift, which means the same drift gets rediscovered and re-litigated indefinitely without ever accumulating into learning. A written record can be checked against what actually happened next, which is the only way to know whether the operator's read of the delta was even correct.

Together with [Reality Check], [Post Shift] covers both axes of refresh that an operation needs -- the slow drift that only a calendar-driven cadence will catch, and the acute delta that a specific event demands be examined immediately rather than waiting for the next scheduled review. Skip either axis and one category of drift accumulates invisibly until it's expensive to unwind.