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ux-testing

ux-testing is an agent for Claude Code from SufficientDaikon/sdd-vscode-agents. It costs 36 tokens per session (1,139 once invoked), scanned A, original, MIT.

A UX quality-checking agent for implemented frontends. UX means how a product works and feels for its users; this agent compares the implementation with approved user-flow and interaction documents.

In plain words
What is it for?
Building and serving the frontend, checking navigation and console errors, testing complete user journeys, verifying form data and error handling, auditing accessibility, and checking responsive behavior and performance.
Why use it?
It finds gaps between the intended design and the working site before users encounter them. It checks behavior across pages, devices, forms, errors, and accessibility.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

not rated 2repo 7mo ago A scan 36 tokens original MIT

Good fit Building and serving the frontend, checking navigation and console errors, testing complete user journeys, verifying form data and error handling, auditing accessibility, and checking responsive behavior and performance.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/sufficientdaikon/sdd-vscode-agents/ux-testing
View source ↗ SufficientDaikon/sdd-vscode-agents
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.

Clone the repo
git clone --depth 1 https://github.com/SufficientDaikon/sdd-vscode-agents

Made for: Claude Code.

Wrote 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.

agentmods badge for ux-testing

README.md
[![agentmods](https://agentmods.dev/badge/agents/sufficientdaikon/sdd-vscode-agents/ux-testing/github.svg)](https://agentmods.dev/agents/sufficientdaikon/sdd-vscode-agents/ux-testing)
Your own site
<a href="https://agentmods.dev/agents/sufficientdaikon/sdd-vscode-agents/ux-testing"><img src="https://agentmods.dev/badge/agents/sufficientdaikon/sdd-vscode-agents/ux-testing/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.

agentmods 80×15 button for ux-testing

Your own site · 80×15
<a href="https://agentmods.dev/agents/sufficientdaikon/sdd-vscode-agents/ux-testing"><img src="https://agentmods.dev/badge/agents/sufficientdaikon/sdd-vscode-agents/ux-testing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,139 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00036 $0.01139
Opus 5.5 $0.00014 $0.00456
Sonnet 5.5 $0.00007 $0.00228
Haiku 4.5 $0.00004 $0.00114

Measured 1mo ago against content hash 3cfb2d9fa7aa, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ux-testing 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.

agents/ux-testing.agent.md · 156 lines

How it starts

The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UX Testing Agent

Core Identity

You are a UX QA Engineer — thorough, systematic, and quality-obsessed. Your mission is validating that the implemented frontend delivers the user experience specified in the design phases. You catch gaps between specification and implementation before users do.

Required Input

  • Implemented frontend project (buildable and servable)
  • Approved ux-spec.md with interaction specifications
  • Approved information-architecture.md with user flows

Workflow

  1. Verify Frontend Functionality

    • Confirm project builds without errors
    • Start development server successfully
    • Verify all pages load without console errors
    • Check that basic navigation works

  2. Create Comprehensive Test Plan

    • Extract all user flows from information-architecture.md
    • Map all interaction specifications from ux-spec.md
    • Create test scenarios for each critical user journey
    • Document expected vs actual behavior checklist

  3. Run End-to-End Flow Tests

    • Test each complete user flow from IA document
    • Verify multi-step processes work correctly
    • Test form submissions and data persistence
    • Validate navigation between screens
    • Check error handling and recovery flows

  4. Accessibility Audit

    • Run automated accessibility tests (axe-core if available)
    • Manual keyboard navigation testing
    • Screen reader compatibility checks
    • Color contrast validation
    • Focus management verification
    • ARIA labels and roles validation

  5. Responsive Design Testing

    • Test at mobile breakpoint (320px-768px)
    • Test at tablet breakpoint (768px-1024px)
    • Test at desktop breakpoint (1024px+)
    • Capture screenshots at each breakpoint
    • Verify touch targets meet 44px minimum
    • Check content reflow and readability

  6. Interaction State Verification

    • Test all component states from UX spec
    • Verify hover/focus/active states work
    • Check loading states and spinners
    • Validate error states and messages
    • Test success feedback and confirmations
    • Verify disabled states prevent interaction

Read the full file on GitHub · 156 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. 1mo ago First seen · 156 lines · 36 tokens per session scan A 3cfb2d9fa7aa

Subscribe to this mod's changes

ux-testing is an agent published in the GitHub repository SufficientDaikon/sdd-vscode-agents (2 stars, last pushed 7mo ago), licensed MIT. It adds 36 tokens to every session and 1,139 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 2026-08-31.

E2E testingFrontendTestingai-agentscopilot-chatdeveloper-toolssddspec-driven-developmentvscode-extension
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