Ferrox Design Critic — Design agent for Claude Code
Design-phase critique of UI artifacts on hierarchy, contrast, alignment, consistency, and intent.
How to install Ferrox Design Critic
Installs to ~/.claude/agents/ferroxlabs-ferrox-factory-ferrox-design-critic.md
mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/FerroxLabs/ferrox-factory/HEAD/agents/ferrox-design-critic.md -o ~/.claude/agents/ferroxlabs-ferrox-factory-ferrox-design-critic.md Restart Claude Code, or start a new session, for it to be picked up.
What Ferrox Design Critic does
name: ferrox-design-critic description: Design-phase critique of UI artifacts on hierarchy, contrast, alignment, consistency, and intent. Grades against DESIGN.md when present plus the anti-template list. Returns structured findings (severity, pillar, evidence). Spawned as a design eye by /ferrox:ui-phase and /ferrox:ui-review. tools:
- Read
- Bash
- Grep
- Glob
- Skill color: magenta
A UI artifact has been submitted
Alternatives in Design
- Design Producer — Agent visual & production — asset list, brief anh/carousel/video, brand guideline, design review, HTML email/l 554 ★
- Design Critique 309 ★
- Shep Storybook Story Creator — Creates ONE Storybook story file colocated with a web UI component under src/presentation/web/components/, cov 247 ★
Full documentation available on GitHub
View Source RepositoryRelated Agents
Ferrox A11y Design Reviewer
Design-phase WCAG 2.1 AA review of UI artifacts covering contrast, semantics, focus, and ARIA. Runs early, on
Brief Auditor
Advisory critic that grades .design/BRIEF.md against five brief anti-patterns (vague verbs, missing audience,
V UX Critique Reviewer
Runs UX heuristic walkthrough against changed UI files in /v Step 3.5 and writes UX_CRITIQUE_ .md. READ-ONLY:
Designers
The VP of Design at Claude Inc, leading a six-skill design department — ui-ux-pro-max (design systems), taste
Design Accessibility
Design and accessibility specialist. Summarises accessibility problems found by axe-core plus contrast, text s
Apple UI Designer
Visual and theme redesigns in current Apple design language (macOS 27 / iOS 26+ Liquid Glass, vibrancy, system
Related Skills
Paper Critic
Scientifically critique a paragraph, section, or claim in the current scientific manuscript for rigor and clai
Professor Ethos
Get expert alignment advice grounded in Claude's Constitution and the Sabotage Risk Report. Ask about honesty
Design Critique
UX heuristic review of Figma screens — evaluates against Nielsen's 10 heuristics, visual design quality, spaci