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Explain unfamiliar code

Three layers — what, how, why — so you can stop at the depth you need.

Explain this code in three layers:
1. WHAT: one paragraph — what does it do, input to output?
2. HOW: walk through the flow, flagging any non-obvious technique or idiom
3. WHY: what design decisions were made, what alternatives existed, and any smells or risks you see

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[PASTE CODE]
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Open in ChatGPT Claude

Works with Claude · ChatGPT · Gemini — replace the [bracketed] parts with your own details, keep the structure.

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