📖 Step 6: Development#285 / 291
Observability
Observability
📖One-line summary
The ability to infer a system's inner state from outside via logs, metrics, and traces.
💡Easy explanation
The ability to know what's happening inside a running system from the outside. You need logs, metrics, and traces together.
✨Example
📊
Metrics
📜
Logs
🛤️
Traces
You only see the real cause when you look at all three together
⚡Vibe coding prompt examples
>_
Write a minimal example that wires OpenTelemetry traces and metrics into a Next.js app.
>_
Design a middleware that captures observability for LLM calls — tokens, latency, cost, error rate.
>_
Write a guide that links traces, logs, and metrics so you can trace incidents quickly.
Try these prompts in your AI coding assistant!