Complex Reasoning Skill Structured reasoning frameworks for systematic problem solving, leveraging extended thinking capabilities for deep analysis. When to Use - Debugging complex issues with multiple potential causes - Architecture decisions requiring trade-off analysis - Root cause analysis for production incidents - Performance optimization with multiple variables - Security vulnerability assessment - Code refactoring with many dependencies Reasoning Frameworks Chain-of-Thought (CoT) Linear step-by-step reasoning for sequential problems. Tree-of-Thought (ToT) Branching exploration for pro…