The Missing Layer: Design Taste in AI Agents — Hassan El Mghari, Together AI
Hassan El Mghari from Together AI has created Hallmark, a tool that helps AI agents understand design quality.
He explains that anyone can see when an app looks "poorly designed" — purple gradients, italicized headlines, scroll prompts nobody asked for, uppercase letters with wide letter spacing, too many emojis — but few can explain why. By naming these patterns, one can teach an AI agent to avoid them. Hallmark codifies design patterns as rules and gives the model a library of ready-made themes. El Mghari has built ten apps per year over five years by iterating with smaller AI models, and says design quality is the biggest factor for reaching many users.
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