# Debug Arsenal: register_hook, Anomaly Mode, torch.utils.benchmark — Production Debugging Toolkit

> Source: https://sukruyusufkaya.com/en/learn/llm-muhendisligi/debug-arsenal-hooks-anomaly-benchmark
> Updated: 2026-06-27T09:42:24.305Z
> Category: LLM Mühendisliği
> Module: Module 5: PyTorch Engineering — Engineer-Grade
**TLDR:** Toolkit for when things break in production PyTorch: forward/backward hooks, anomaly detection mode, deterministic training, torch.utils.benchmark precise timing, repro patterns, systematic NaN hunting, gradient inspection, model debugging strategies.