Autograd (Design)

The corresponding Chinese page (src/zh/design/autograd.md) is currently empty in the source repository. This English page provides a starter outline for future design content.

Suggested topics

• Goals / non-goals (dynamic graph vs static graph; educational clarity)
• Graph data structures: nodes, edges, topological ordering
• Gradient storage and accumulation semantics
• Backward API: backward() behavior and entry points
• Operator definitions and derivative rules
• Memory management and lifetime during backprop
• Debugging: tracing, std::stacktrace, graph visualization hooks
• Testing strategy (numerical gradient checks + edge cases)