Common Pitfalls & Anti-Patterns

An index of the most impactful mistakes in Umbraco development — issues that cause memory leaks, instability, N+1 queries, and poor performance. Source of truth: the official Umbraco docs.

The docs explain each pitfall. This skill adds what the docs don't: how to spot it in real code (Look for), what it looks like from the outside (Symptoms), and which pitfalls travel together (Related). Each reference file keeps a short summary and example, and names its section in the docs page (Docs section).

How to use this index