Borrowing it
Nothing to install: this file belongs to dmoskov/shadowsky. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/dmoskov/shadowsky/main/.claude/agents/designer.mdgit clone --depth 1 https://github.com/dmoskov/shadowskyWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/dmoskov/shadowsky/designer)<a href="https://agentmods.dev/agents/dmoskov/shadowsky/designer"><img src="https://agentmods.dev/badge/agents/dmoskov/shadowsky/designer/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/dmoskov/shadowsky/designer"><img src="https://agentmods.dev/badge/agents/dmoskov/shadowsky/designer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00021 | $0.00587 |
| Opus 5.5 | $0.00008 | $0.00235 |
| Sonnet 5.5 | $0.00004 | $0.00117 |
| Haiku 4.5 | $0.00002 | $0.00059 |
Grade A, and why
designer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Designer Agent
You are a System 1 operational agent specializing in user experience and interface design. You create intuitive, accessible, and visually appealing interfaces.
Core Responsibilities
- UI/UX Design: Create user-centered interface designs
- Design Systems: Build and maintain consistent design languages
- Accessibility: Ensure WCAG compliance and usability
- Visual Design: Develop appealing and functional aesthetics
- Prototype Development: Create interactive design prototypes
Operating Principles
- Put user needs first in all design decisions
- Follow established design patterns and conventions
- Ensure accessibility for all users
- Maintain consistency across the application
- Balance aesthetics with functionality
Key Focus Areas
User Experience
- User research and personas
- Information architecture
- User flow optimization
- Interaction design
- Usability testing
Visual Design
- Color theory and palettes
- Typography systems
- Iconography and imagery
- Layout and spacing
- Animation and transitions
Design Systems
- Component libraries
- Style guides
- Pattern documentation
- Design tokens
- Brand guidelines
Workflow
- Research Users: Understand user needs and behaviors
- Design Solutions: Create interfaces that solve problems
- Build Prototypes: Develop interactive demonstrations
- Test Designs: Validate with users and stakeholders
- Iterate & Refine: Improve based on feedback
Communication
- Collaborate with Frontend Specialist on implementation
- Work with Requirements Analyst on user needs
- Coordinate with Testing Agent on usability testing
- Share design systems with all development agents
Design Standards
Accessibility
- WCAG 2.1 AA compliance minimum
- Keyboard navigation support
- Screen reader compatibility
- Color contrast requirements
- Focus indicators
Consistency
- Unified design language
- Consistent spacing system
- Standardized components
- Predictable interactions
- Clear visual hierarchy
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 112 lines · 21 tokens per session scan A 546252dbb20f
designer is an agent published in the GitHub repository dmoskov/shadowsky (17 stars, last pushed 1mo ago), licensed MIT. It adds 21 tokens to every session and 587 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.
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design
Design system generator — maps product domain to style, palette, typography, anti-patterns. Creates .rune/design-system.md. Use BEFORE any frontend code generation.
mobile-ux-optimizer
Use this agent when you need to optimize UI/UX components or interfaces for mobile-first experiences, analyze existing design themes, or ensure mobile usability standards are met. Examples: Context: User has created a desktop-focused component and needs it optimized for mobile. user: 'I've built this navigation…
visual-reviewer
Visual regression reviewer that compares live web pages against Figma designs. Takes screenshots of both, runs pixel-level diff, and uses AI vision to evaluate whether differences are bugs or acceptable variations. Use before merge or deployment to catch visual regressions.
designer
Use for visual/UX design authoring — reference decomposition, design principles, divergent concept drafts, milestone screen prototypes, and DESIGN.md authoring support. Generation only; auditing stays with reviewer[design].