Teach engineering concepts for real understanding using the Feynman technique, strong metaphors, and diagrams (render via beautiful-mermaid). Use when users ask to explain/teach/break down engineering concepts, build intuition/mental models, understand trade-offs/failure modes/design choices, or want a visual diagram.
beautiful-mermaid.docs/96-engineering-tutor-learnings/ (create if missing; see docs/REPO-STRUCTURE.md)Include at least one: inputs/outputs, constraints, trade-offs, failure modes, why this design vs alternatives.
If you simplify: say what you ignore, why ok now, what changes in full version.
beautiful-mermaid)Give short direct answer + 1-line intuition; offer optional diagram.