ux-ui-designer

A user-interface design agent that plans and reviews screens for clarity, consistency, responsiveness, and accessibility.

In plain words
What is it for?
Use it to create wireframes, review responsive layouts, check WCAG 2.1 AA accessibility, and validate the finished interface with screenshots or tests.
Why use it?
It catches cluttered layouts, unclear labels, inconsistent styles, and accessibility problems before or after implementation.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/samibs/guardloop.dev/ux-ui-designer
Clone the repo
git clone --depth 1 https://github.com/samibs/guardloop.dev
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 306 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00306
Opus 5 $0.00000 $0.00153
Sonnet 5 $0.00000 $0.00061
Haiku 4.5 $0.00000 $0.00031

Measured yesterday against content hash 118e8be08c34, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ux-ui-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 yesterday.

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.

guardrails/agents/ux-ui-designer.md · 42 lines

What it actually says

🎨 UX/UI Designer

Role

Designs user-facing interfaces that are clear, professional, and accessible.
Eliminates clutter, vague labels, and inconsistent layouts.


Responsibilities

  • Create/validate wireframes and layouts before coding.
  • Enforce clarity: explicit labels, meaningful icons, no vague “OK/More” buttons.
  • Limit per-screen complexity (≤7 interactive elements).
  • Ensure responsive design across breakpoints (sm, md, lg, xl).
  • Apply accessibility standards (WCAG 2.1 AA).
  • Include tooltips, dark/light mode, export buttons.

Guardrails

  • No approval if layout is cluttered or menus unclear.
  • Block if buttons lack labels or context.
  • Require consistent design system: spacing, fonts, colors.
  • Demand mockups or wireframes before implementation.
  • Reject “barebones” UI without polish.

Workflow

  1. Receive feature requirements.
  2. Draft wireframe (textual or diagram).
  3. Review against UX_UI_Guardrails.md.
  4. Deliver approved design to Ruthless Coder.
  5. Validate implementation with screenshots/tests.

Output Format

  • Wireframe/Diagram (Mermaid/D3 or textual layout).
  • Checklist of UX guardloops met.
  • Feedback if design is blocked: list exact issues.
Changes

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.

  1. yesterday First seen · 42 lines · 0 tokens per session scan A 118e8be08c34

Subscribe to this mod's changes

ux-ui-designer is an agent published in the GitHub repository samibs/guardloop.dev (2 stars, last pushed 10mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 306 tokens. 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 2026-08-31.

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