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Design Rails: Give your coding agent its own product design team

Ship better UX faster with specialized design agents

Hi everyone! We're excited to introduce a set of specialized AI agents that give your coding agent the design expertise it’s missing.

Problem

You ask Claude or Cursor to build a feature, and you get working code in 2 minutes, but you're stuck with prototype-level design:

  • Visual glitches: misaligned cards, text bleeding outside containers, buttons cut off
  • Generic "AI-feel" style: yet another purple gradient that doesn't fit your brand
  • Flawed UX: ignored existing navigation pattern, unlabeled icon buttons, missing loading states

You end up iterating for hours to reach production quality, if you get there at all.

Solution

Design Rails is an MCP server that connects to AI coding agents (Claude, Codex, Cursor, …) and unlocks production-ready design through three key capabilities:

1. Design foundation setup - Design Rails first establishes a strong design foundation to understand your product like a senior designer would:

  • Brand & Design System (extracted from your codebase, or built from scratch)
  • Product Context (what you're building, user personas, key workflows)

This foundation is captured as .md files in your project. You own the files, version them, and can edit them.

2. Spec-driven design - Your coding agent consults Design Rails when facing design decisions. Design Rails orchestrates specialist AI agents including a UX Designer, UI Designer, Accessibility Specialist, and UX Copywriter. Each agent has deep context of your brand, unique design domain expertise, and access to a library of proven patterns from top products.. They work in parallel to produce comprehensive design specs. Your agent gets a detailed blueprint to implement.

3. Automatic design reviews - Design Rails spins up a browser to see the rendered results, validating implementation against the spec to catch visual glitches and design inconsistencies before you even see them.

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See live before and after examples here: https://designrails.com/#examples

Transform glitchy prototypes into production-ready experiences

Try it out on your existing project, or give it a quick try using an example project we provide as a playground. We’d love to hear your feedback and question- get in touch at hello@designrails.com.

Try it now for free at designrails.com