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World O1: The Control Room

On call, kindly

You will learn: how a kind on-call week works, what to do when paged, and when to call for help.

Checked with Prometheus 3 on 1 Nov 2026

The problem

Aina got 14 pages last night. 12 needed nothing. What happens next week?

Pick one answer.

Watch

Tap each point on the timeline.

Being on call: Your turn to answer alerts, for a set time, with a plan and a backup person. means it is your turn to answer alerts. Kind teams plan it. Tap each day.

Try it

Your phone buzzes: a page. Put the steps in order.

First step at the top. Put these in order. Use the arrows, or drag.

  • Fix it, or call your backup
  • Write a short note for the team
  • Say “I’ve got it”: acknowledge the page
  • Open the runbook for this alert
  • Look at the dashboard: how bad, since when?

Predict

20 minutes in, you are stuck. Customers are still hurting. What now?

Pick one answer.

Check

Kind or unkind on call? Swipe right for kind.

Swipe right for good, left for needs work. Or use the buttons.

1 / 5

A backup person for every shift

A backup person for every shift

You did it!

You can now plan a kind on-call week and handle a page calmly.

Go deeper (optional)

Google’s SRE book sets limits: on call at most 25% of the time. Aim for at most 2 incidents per 12-hour shift. Too many pages cause alert fatigue: So many pings that people stop reading them. Then the one real alarm gets missed.. Runbooks and burn-rate alerts come in World O3.

Real mission

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