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ui-diff-checker

ui-diff-checker is an agent for Claude Code from 14790897/my-skills. It costs 54 tokens per session (3,461 once invoked), scanned A, original, no licence file.

A visual review agent that compares application screenshots with design mockups using an image-understanding model. It looks for differences in how the interface appears.

In plain words
What is it for?
It helps compare screenshots, check interface consistency, find visual mismatches, and create design quality reports.
Why use it?
It removes much of the manual work involved in checking whether an implementation matches its design. It can identify inconsistencies that are easy to miss in code review.

Agent for Claude Code

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

not rated 2repo 3d ago A scan 54 tokens no licence

Good fit It helps compare screenshots, check interface consistency, find visual mismatches, and create design quality reports.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/14790897/my-skills/ui-diff-checker
View source ↗ 14790897/my-skills my-skills-three.vercel.app
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/14790897/my-skills

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 ui-diff-checker

README.md
[![agentmods](https://agentmods.dev/badge/agents/14790897/my-skills/ui-diff-checker/github.svg)](https://agentmods.dev/agents/14790897/my-skills/ui-diff-checker)
Your own site
<a href="https://agentmods.dev/agents/14790897/my-skills/ui-diff-checker"><img src="https://agentmods.dev/badge/agents/14790897/my-skills/ui-diff-checker/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 ui-diff-checker

Your own site · 80×15
<a href="https://agentmods.dev/agents/14790897/my-skills/ui-diff-checker"><img src="https://agentmods.dev/badge/agents/14790897/my-skills/ui-diff-checker.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,461 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 unknown 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 $0.00054 $0.03461
Opus 5.5 $0.00022 $0.01384
Sonnet 5.5 $0.00011 $0.00692
Haiku 4.5 $0.00005 $0.00346

Measured 2mo ago against content hash 3576eae30835, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ui-diff-checker 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 2mo 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.

expert/ui-diff-checker/agents/ui-diff-checker.md · 254 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2mo ago First seen · 254 lines · 54 tokens per session scan A 3576eae30835

Subscribe to this mod's changes

ui-diff-checker is an agent published in the GitHub repository 14790897/my-skills (2 stars, last pushed 3d ago), with no licence file. It adds 54 tokens to every session and 3,461 once invoked, about $0.0002 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.

Design and UXFrontendagent-skills
Related

ui-diff-checker compared with agents from other repositories

ui-diff-checker next to 6 agents from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
ui-diff-checker14790897/my-skillsAgent23d agononeA54Claude Code
ux-flow-auditorCharlesWiltgen/AxiomAgent1.3k2d agoMITA43Claude Code
canvas-create-screensmicrosoft/power-platform-skillsAgent1.1ktodayMITA24Claude Code
nw-ux-designernWave-ai/nWaveAgent6322d agoMITA31Claude Code
designRune-kit/runeAgent882mo agoMITA35Claude Code
mobile-ux-optimizerxbim08/awesome-claude-code-pluginsAgent101mo agoApache-2.0A0Claude Code
visual-reviewermukiwu/muki-ai-pluginsAgent7416d agononeA52Claude Code