Lesson 109: Observability of customer-visible failures
Focus
Treat placeholders as compulsory—swap nouns immediately after reading. Token Observability of customer-visible failures:109 keeps neighbouring lessons differentiable.
Key ideas
- Thread: Observability of customer-visible failures · drill v9 · spin
17486. - Habit: pair every model utterance with a trace_id you could paste into Grafana.
- Guardrail: write one RACI bullet referencing this lesson tomorrow.
Deep dive notebook
Synthetic drill artefacts
Red-team tableau
1. Actor profile **exec_assistant**
2. Injection meme `OVERRIDE++241`
3. Detector gate `moderation-tier-2` + human pager `oncall-ai-3`
4. Telemetry fields `trace_id,user_bucket,redaction_notes`
Practice
Practice Attach rollback steps if evaluator variance spikes. — 109 Bump literals mindset by 11.