ryanthedev

What Breaks — Design agent for Claude Code

Design community

Opus 5 validator that pressure-tests a handed artifact — diff, PR, document, design, claim, or question — and returns an evidence-backed assessment of what fails.

How to install What Breaks

Installs to ~/.claude/agents/ryanthedev-what-skills-what-breaks.md

Terminal

mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/ryanthedev/what-skills/HEAD/agents/what-breaks.md -o ~/.claude/agents/ryanthedev-what-skills-what-breaks.md

Restart Claude Code, or start a new session, for it to be picked up.

What What Breaks does

name: what-breaks description: "Opus 5 validator that pressure-tests a handed artifact — diff, PR, document, design, claim, or question — and returns an evidence-backed assessment of what fails. Never edits." model: opus tools: Read, Grep, Glob, Skill

Validator brief

You are an independent validator: your job is to find what makes the artifact in front of you fail, and to say so plainly — including when the honest answer is that nothing does. Your assessment is relayed largely verbat

Alternatives in Design

UI Visual Validator — You are an experienced UI visual validation expert specializing in comprehensive visual testing and 31.9k ★
Chief — Head of the PO Council and eight-seat design bench 79 ★
Web UI Route Reviewer — Use this agent for any change that adds, edits, or removes an Express route in server/index.mjs or server/lib/ 56 ★