rryux
MCP + design rules for AI agents

Every design decision,
backed by a real screen.

ryux serves your AI agent curated screens from real Indonesian apps over MCP, plus an anti-slop ruleset. It has to cite what it copies.

Free in early access · MIT-licensed rules · sample data today, real screens rolling in.

search_screens1 result

Warung Kopi Contoh

Checkout · QRIS

scr_a3f091v4.20.124 Sep 2026

Designer note: QRIS on top for small amounts; fees shown before you commit.

See the difference

Same brief, built in pen.dev. The “after” applies ryux-rules plus ryux data: specific, honest, and Indonesian. Reference screens are in Indonesian, on purpose.

ryux-uipalette, spacing, consistency, states
Generic payment screen: sparkle logo, made-up user numbers, global methods, dollar pricing, low-contrast textryux checkout: order summary, transparent fees, QRIS with a verification-time note, Rupiah, screen_id evidence
Before (no ryux)After (ryux)
ryux-localQRIS, virtual account, fees, Rupiah
Global card payment in dollars with foreign methods and no local patternBCA Virtual Account: countdown, VA number with copy button, transparent admin fee, Rupiah, numbered steps
Before (no ryux)After (ryux)

What's inside

Nine MCP tools

Research (search_screens, get_flow, compare_apps…), audit (audit_ui, audit_copy, heuristic_eval, delivery_gate), and a design bridge. Every result carries a screen_id, app, version, and capture date.

RYUX, a designer's reasoning

107 rules in 14 modular skills, from product thinking to visual QA. Hard Gates, purpose gates instead of style bans, and a 10-area Delivery Gate before you ship.

Install by group

npx ryux-rules drops the skills into Claude Code, Cursor, or AGENTS.md. Pick the groups you need (foundation, ux, ui, engineering, quality), and agents load only what a task needs.

Install

Drop the rules into your agent, then connect it to the reference data over MCP.

1. Install ryux-rules

npx ryux-rules

2. Connect the MCP server

claude mcp add --transport http ryux https://mcp.ryux.design/mcp

It's MIT licensed, so you can read the ruleset and run it yourself. Browse the repo.

Be first when production data opens

Today the data is sample data and the ruleset is free to use. Leave your email and we'll tell you when reviewed production screens and paid plans are ready.

We email you once, when reviewed production screens and paid plans are ready. No spam.