Reference Hunt

Port the semantics of a reference implementation by reading its actual source, not screenshots or docs. Use when the user says "reference hunt", "照着这个实现", "像这个一样", "要做成像 X 那样", "抄作业" while pointing at a concrete product, library, or code, says "find me a reference implementation" or "steal X's logic", asks "how does <product> do that? I want that here" — the question is the trigger — or struggles to articulate a behavior they can recognize. If the user has no reference — or has one but wants several divergent directions to react to — use design-directions (a reference hunt can feed it one direction's semantics). Not for finding documentation or tutorials, and not for mere…