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Incident Arena

Practise being the engineer on call when production breaks. Each incident is a short story with a real failure. You find the cause from logs, stop the damage, then change the design so it cannot happen again.

How one incident works

1. 1Read the alert. A short story tells you what users are seeing.
2. 2Investigate. Run commands, read logs, pin the lines that prove what broke.
3. 3Stop the damage. Pick a quick action that protects users right now.
4. 4Name the cause. Say which part broke and why, backed by your proof.
5. 5Fix and prove. Change the design and replay the incident to show it holds.

Each incident gives up to 3 stars. A guide at the top of the screen tells you the next step, so you never have to guess. Nothing to install, and the numbers are illustrative.