When one part of your app fails, how do you stop the failure spreading to the rest?
- Module
- 02/05
- To read
- ~7 min
At 2 AM, a notification service began failing to send email, and its workers started retrying every message. What do you think happened over the next few hours?
In the module you make your guess first, then read what happened and why.
Define blast radius before building
Circuit breakers prevent cascade propagation
Bounded queues prevent resource exhaustion
Rollback contracts define the recovery path
A plan for keeping failures contained
A spec for your own app, as a text file you download. The module also gives you the prompt for Claude Code, Codex or Antigravity, a checklist to check what it built, and recommended skills.
- Bounded queues
- Retries with backoff
- Isolated workers