Explains idempotency, error handling and replay
Idempotent receiver, dead letter channel, guaranteed delivery and replay from a known point (Hohpe and Woolf, Enterprise Integration Patterns).
Can AI do this?
AI does this well Most of the tested AI models master this. 4 of 4 models in the current benchmark master it.
| Model | Tier | Probability of mastery | Status |
|---|---|---|---|
| gemini-4-argon | Flagship | 100% | Mastered |
| gemini-3.5-flash-lite | Low cost | 100% | Mastered |
| gpt-6-luna | Low cost | 100% | Mastered |
| claude-haiku-5-5 | Low cost | 100% | Mastered |
Mastered means a probability of at least 90% that the model has this knobit, estimated from its graded answers. “Not shown” means the answers do not settle it either way. How the models are tested.
What it looks like in practice
Expected result: Idempotent receiver, dead letter channel, guaranteed delivery and replay from a known point (Hohpe and Woolf, Enterprise Integration Patterns).
How it is assessed: Answers a written question on the idempotent and recoverable loads correctly
Related knobits
Needed for
- N-301 Recognises a non-idempotent load
- N-306 Recognises dead letters nobody reads
- N-307 Recognises a flow with no replay path
- N-331 Designs an idempotent load on a natural key
All 15 knobits of Design the integration patterns.
Source: Practice the stage 3 reference and review checklist rest on