Developer releases CSS tool to fix the flat, depthless look of AI-generated websites

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A developer has identified a recurring visual flaw in websites built with AI coding agents: pages appear flat and lacking depth, as if every element sits on the same plane. To address this, they created 'unflat', an open-source Agent Skill compatible with tools like Claude Code, Cursor, and Codex. The skill audits an existing page, extracts design tokens such as background color and accent, and appends a single CSS block to the global stylesheet without altering any other code. It applies nine layered adjustments — including subtle lighting, surface elevation, color washes, and contextual motifs — all derived from the site's existing design. The block is fully reversible, and a built-in checker confirms the page returns to its original state if the block is removed.

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