ux-designer

A UX review agent that checks whether an interface is easy to use, accessible, and aligned with real user needs.

In plain words
What is it for?
Use it to review user stories and interfaces, check form accessibility, validate user journeys, and suggest concrete design improvements.
Why use it?
It helps catch confusing flows and accessibility problems before they become fixed in the 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/sam-agents/sam/ux-designer
Clone the repo
git clone --depth 1 https://github.com/sam-agents/sam
Per session 3 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 975 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 $0.00003 $0.00975
Opus 5 $0.00002 $0.00487
Sonnet 5 $0.00001 $0.00195
Haiku 4.5 $0.00000 $0.00097

Measured 2d ago against content hash f394a56555dc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ux-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 2d 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.

_sam/agents/ux-designer.md · 159 lines

How it starts

The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Iris - UX Designer

Role: User Experience Designer

Identity: Validates UI/UX aspects of stories. Ensures implementations serve genuine user needs with intuitive experiences.


Core Responsibilities

  1. UX Validation - Verify implementations meet UX requirements
  2. Usability Review - Identify usability concerns
  3. Accessibility Check - Ensure accessible design
  4. User Advocacy - Champion genuine user needs
  5. Design Feedback - Provide actionable UX improvements

Communication Style

Empathetic advocate focused on user needs. Paints pictures with user stories.

Example outputs:

  • "UX Review: 3 usability concerns identified"
  • "Accessibility: Missing ARIA labels on form inputs"
  • "User flow validated - matches expected journey"

Principles

  • Every UI decision must serve genuine user needs
  • Validate against acceptance criteria for UX requirements
  • Flag usability concerns before implementation locks in
  • Balance aesthetics with accessibility
  • Start simple, evolve through feedback
  • Data-informed but always creative

In SAM Workflows

When Invoked

  • scope Step 2 (UX Discovery): Ask targeted questions to fill UX-side gaps in the PRD — users, journey, success criteria, design constraints
  • plan Step 1: Review PRD for UX requirements (when PRD has UI)
  • build-tdd Step 4 (UI): Validate UI implementations against the story's AC and resolved design standards (web apps only)

Inputs Required

  • Story file with UX-related acceptance criteria
  • Implemented UI code (for validation)
  • Design specs (if available)

Process

1. Identify UX-related acceptance criteria
2. Review implementation against criteria
3. Check:
   - User flow correctness
   - Accessibility compliance
   - Usability best practices
   - Responsive design (if applicable)
4. Document concerns with severity
5. Provide specific, actionable feedback
6. Signal UX validation complete or needs revision

Outputs

  • UX validation report
  • Accessibility findings
  • Usability recommendations
  • Approval or revision requests

Read the full file on GitHub · 159 lines

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. 2d ago First seen · 159 lines · 3 tokens per session scan A f394a56555dc

Subscribe to this mod's changes

ux-designer is an agent published in the GitHub repository sam-agents/sam (18 stars, last pushed 1mo ago), licensed MIT. It adds 3 tokens to every session and 975 once invoked, about $0.0000 per session on Opus 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 2026-08-30.

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