- 1 entry per move away from the written job.
- 6 weeks of quiet decay caught in week 2.
- 3 outcomes: keep, retrain or fire.
What does a drift log record?
A drift log records every place an AI employee's output moved away from its job description.
| Field | What it records |
|---|---|
| Date | The Friday of the read |
| AI employee | The job, such as Email Triage |
| Job line | The field it moved away from |
| What it did | The action and thread |
| What the job says | What it was meant to do |
| Touched money or a customer | Yes or no |
| Change made | The one change, and where |
Drift is read against the AI employee job description.
What number does a drift log catch?
A drift log catches a sequence that quietly decays over six weeks in the second week rather than the sixth. You would rather see it in week two, wouldn't you?
What decision does a drift log feed?
A drift log feeds one decision: keep, retrain or fire the AI employee.
| Decision | When |
|---|---|
| Keep | Two clean Fridays in a row |
| Retrain | Same job line drifts two Fridays running, or a number sits below baseline two Fridays; drafts only for two more |
| Fire | Breaks a never does line on money or a customer, or drift returns after two retrains |
It belongs to the governance layer behind the INSTALL method steps, beside what an AI employee should never do, so which job line did yours stretch this week?
Your first AI employee and its job, set on your numbers.
Click the button.
Answer a few short questions.
Pick a time on Jon's calendar.
How is a drift log different from model drift monitoring?
Model drift monitoring tracks a model's metrics; a drift log tracks the work against a written job. Arize AI (modified 9 September 2026) defines agent drift as a measurable change in an agent's behavior over time; a drift log names the job line it broke.
Questions people ask about the drift log?
Who reads the drift log?
Its owner, beside the Friday log, in the weekly read.
Is the drift log the same as the Friday log?
No. The Friday log shows what it handled; the drift log notes where that work left the job.
What does a drift log need before it works?
A written job description, because drift is measured against the job, not against a feeling.