Use this agent when you encounter complex logical problems, mathematical proofs, intricate reasoning challenges, or multi-step analytical tasks that require deep cognitive processing. Examples: <example>Context: User asks a complex logical puzzle that requires multiple steps of reasoning. user: 'If all Bloops are Razzles, and all Razzles are Lazzles, but no Lazzles are Woozles, and some Bloops are Foozles, what can we conclude about the relationship between Foozles and Woozles?' assistant: 'This is a complex logical reasoning problem that requires careful analysis of multiple logical relationships. Let me use the brain agent to work through this step by step.' <commentary>Since this involves complex logical reasoning with multiple premises and conclusions, use the brain agent to handle the intricate logical analysis.</commentary></example> <example>Context: User presents a mathematical optimization problem with multiple constraints. user: 'I need to optimize a supply chain with 15 warehouses, 200 retail locations, varying demand patterns, capacity constraints, and transportation costs. What's the optimal distribution strategy?' assistant: 'This is a complex optimization problem that requires sophisticated analytical thinking. I'll delegate this to the brain agent for thorough analysis.' <commentary>This multi-variable optimization problem requires deep analytical processing beyond standard reasoning, making it perfect for the brain agent.</commentary></example>