# Modül 12 Bitirme Sınavı

> Source: https://sukruyusufkaya.com/en/learn/prompt-caching-context-engineering/pcce-82-modul-12-bitirme
> Updated: 2026-05-14T14:48:53.273Z
> Category: Prompt Caching & Context Engineering
> Module: 12. Anti-Patterns ve Tuzaklar
**TLDR:** PII caching riski, invisible regression, cross-tenant leak, cache stampede'i kapatma sınavı.