# Observability: Logging, Tracing, LangSmith / Langfuse

> Source: https://sukruyusufkaya.com/en/learn/prompt-engineering/pe-71-observability
> Updated: 2026-08-19T02:30:51.465Z
> Category: Prompt Engineering
> Module: 12. Üretim ve Ölçeklendirme
**TLDR:** Production LLM gözlemlenebilirliği: structured logs, distributed tracing, anomaly detection. LangSmith, Langfuse, Helicone karşılaştırması.