Define edge cases for a feature
Find edge cases before engineering
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Identify all edge cases and failure modes for the following feature: [describe feature]. Consider: empty states, error states, permission variations, data boundary conditions, concurrent usage, slow network/offline behavior, accessibility edge cases, and internationalization issues. For each edge case, define the expected behavior.
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Pour chaque cas limite, demandez aussi « message utilisateur associé » et « priorité (critique/moyenne/faible) ». Cela transforme la sortie en un tableau actionnable directement pour le backlog produit ou les specs techniques.
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