Brainless: shadcn/ui components that mimic Claude Code, Codex, and Grok

Brainless is a library of drop-in UI components, built on shadcn/ui, that replicate the distinctive look of popular AI coding assistants—the terminal-style chat of Claude Code, OpenAI’s Codex, and xAI’s Grok. Rather than shipping any underlying model logic, it copies the surface: the CLI-flavored panels, tool-call readouts, diff blocks, and ‘Thinking…’ status lines that those agents render. The name is the joke—these are the visuals with none of the intelligence behind them.

Distribution follows the shadcn model: you pull individual blocks into your own project via the CLI (e.g. bunx shadcn add brainless/pricing), and the component lands as source files you own and can edit, rather than a locked dependency. That makes it a fast way to give a landing page, marketing site, or internal tool the familiar aesthetic of a modern AI dev tool without rebuilding the styling from scratch.

The project is more a design and tech-culture artifact than a technical one—it capitalizes on how quickly the Claude Code/Codex terminal look has become a recognizable visual language. For front-end developers it’s a convenient shortcut; more broadly, it signals that AI-agent UIs have matured into a copyable style worth cloning.