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Features List evolves over time.
Shall not will
Features are initially described in a short paragraph, typically 2-4 sentences. This description represents a high-level summary of the feature, a placeholder for preliminary understanding and a basis for future communication. It's rather like a headline for an article that will be written later. The goal is to spend just enough time describing the feature to have a reasonable understanding of relative size, complexity, and priority compared to all other features
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