--- title: Rule Title Here impact: CRITICAL|HIGH|MEDIUM-HIGH|MEDIUM|LOW-MEDIUM|LOW impactDescription: Quantified impact (e.g., "2-10× improvement", "prevents runtime crashes") tags: section-prefix, technique, tool, related-concepts --- ## Rule Title Here 1-3 sentences explaining WHY this matters. Focus on validation implications and cascade effects. **Incorrect (what's wrong):** ```typescript // Bad code example - production-realistic, not strawman // Comments explaining the cost ``` **Correct (what's right):** ```typescript // Good code example - minimal diff from incorrect // Comments explaining the benefit ``` **When NOT to use this pattern:** - Exception 1 - Exception 2 Reference: [Reference Title](URL)