visual-verify-ui

visual-verify-ui is a skill for Claude Code from winstonkoh87/Athena-Public. It costs 21 tokens per session (208 once invoked), scanned A, original, MIT.

A visual quality-check workflow for frontend interfaces that uses browser screenshots to compare pages across mobile, tablet, and desktop sizes.

In plain words
What is it for?
It helps check whether a UI looks correct, start a local server when needed, open a target page, and capture full-page screenshots at several screen sizes.
Why use it?
It provides visual evidence of layout, responsive behaviour, and changes instead of relying only on code inspection.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter.

Good fit It helps check whether a UI looks correct, start a local server when needed, open a target page, and capture full-page screenshots at several screen sizes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/winstonkoh87/athena-public/visual-verify-ui
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.

Any agent
npx skills add winstonkoh87/Athena-Public --skill visual-verify-ui
Clone the repo
git clone --depth 1 https://github.com/winstonkoh87/Athena-Public

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 visual-verify-ui

README.md
[![agentmods](https://agentmods.dev/badge/skills/winstonkoh87/athena-public/visual-verify-ui/github.svg)](https://agentmods.dev/skills/winstonkoh87/athena-public/visual-verify-ui)
Your own site
<a href="https://agentmods.dev/skills/winstonkoh87/athena-public/visual-verify-ui"><img src="https://agentmods.dev/badge/skills/winstonkoh87/athena-public/visual-verify-ui/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 visual-verify-ui

Your own site · 80×15
<a href="https://agentmods.dev/skills/winstonkoh87/athena-public/visual-verify-ui"><img src="https://agentmods.dev/badge/skills/winstonkoh87/athena-public/visual-verify-ui.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 208 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00021 $0.00208
Opus 5 $0.00010 $0.00104
Sonnet 5 $0.00004 $0.00042
Haiku 4.5 $0.00002 $0.00021

Measured 10d ago against content hash 0300c2dbb1cc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

visual-verify-ui 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 10d 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.

examples/skills/coding/visual-verify-ui/SKILL.md · 31 lines

What it actually says

Visual QA & UI Verification

Automates visual regression testing and responsive design checks by formally deploying browser tools to capture DOM states and screenshots.

Triggers

"check the UI", "does this look right", "take a screenshot"

Core Mechanics

  1. Boots local server if not running.
  2. Uses Browser tool to navigate to target URL.
  3. Captures full-page screenshots across Mobile, Tablet, and Desktop viewports.
  4. Returns visual evidence to the main protocol loop.

Reference Paths

  • .context/memories/protocols/engineering/99-visual-verification.md
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. 10d ago First seen · 31 lines · 21 tokens per session scan A 0300c2dbb1cc

Subscribe to this mod's changes

visual-verify-ui is a skill published in the GitHub repository winstonkoh87/Athena-Public (587 stars, last pushed today), licensed MIT. It adds 21 tokens to every session and 208 once invoked, about $0.0001 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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