ui-analyse

ui-analyse is a skill for Claude Code, Codex from MadAppGang/claude-code. It costs 46 tokens per session (2,069 once invoked), scanned A, original, MIT.

A guide for analysing user interfaces from images with a visual AI model. It identifies design problems and reports findings without changing the code.

In plain words
What is it for?
Use it to inspect screenshots or designs, identify interface issues, set their severity, and choose the appropriate visual-analysis provider.
Why use it?
It helps find visual and usability issues before implementation work begins, while keeping review separate from editing.

Skill for Claude CodeCodex

Part of the dev plugin — 47 skills, 12 commands, 14 agents shipped together

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 skills/madappgang/claude-code/ui-analyse
Any agent
npx skills add MadAppGang/claude-code --skill ui-analyse
Clone the repo
git clone --depth 1 https://github.com/MadAppGang/claude-code

Made for: Claude Code, Codex.

Or install dev, the plugin that ships this one along with the rest of its 47 skills, 12 commands, 14 agents.

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-analyse

README.md
[![agentmods](https://agentmods.dev/badge/skills/madappgang/claude-code/ui-analyse.svg)](https://agentmods.dev/skills/madappgang/claude-code/ui-analyse)
Your own site
<a href="https://agentmods.dev/skills/madappgang/claude-code/ui-analyse"><img src="https://agentmods.dev/badge/skills/madappgang/claude-code/ui-analyse.svg" alt="Measured on agentmods" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,069 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 $0.00046 $0.02069
Opus 5 $0.00023 $0.01035
Sonnet 5 $0.00009 $0.00414
Haiku 4.5 $0.00005 $0.00207

Measured yesterday against content hash 6be9a481f376, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ui-analyse 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.

plugins/dev/skills/design/ui-analyse/SKILL.md · 292 lines

How it starts

The opening of the file, as written. The whole thing — 292 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UI Analysis Skill

Overview

This skill provides patterns for analyzing UI designs visually using Gemini 3 Pro Preview. It is analysis-only - for implementing improvements, use dev:ui-implement.

Relationship to Other Skills

Skill Purpose Modifies Code?
dev:ui-analyse Visual analysis, issue detection No
dev:ui-implement Apply improvements from analysis Yes
dev:ui-style-format Style file specification No
dev:design-references Reference image management No

Provider Selection

Detection Logic

detect_gemini_provider() {
  # Priority 1: Gemini Direct API (lowest latency)
  if [[ -n "$GEMINI_API_KEY" ]]; then
    echo "g/gemini-3-pro-preview"
    return 0
  fi

  # Priority 2: OpenRouter (requires or/ prefix)
  if [[ -n "$OPENROUTER_API_KEY" ]]; then
    echo "or/google/gemini-3-pro-preview"
    return 0
  fi

  # Priority 3: Vertex AI
  if [[ -n "$GOOGLE_APPLICATION_CREDENTIALS" ]]; then
    echo "vertex/gemini-3-pro-preview"
    return 0
  fi

  # Priority 4: Gemini OAuth (check claudish)
  if npx claudish --list-accounts 2>/dev/null | grep -q "gemini"; then
    echo "g/gemini-3-pro-preview"
    return 0
  fi

  # No provider
  return 1
}

Model Prefix Reference

Prefix Provider Env Var Notes
g/ Gemini Direct GEMINI_API_KEY Lowest latency
or/ OpenRouter OPENROUTER_API_KEY Avoids google/ collision
vertex/ Vertex AI GOOGLE_APPLICATION_CREDENTIALS Enterprise

Error Messages by Provider

Provider Missing Error Message Setup Instructions
gemini_direct GEMINI_API_KEY "Gemini API key not found" export GEMINI_API_KEY="your-key" from aistudio.google.com
openrouter OPENROUTER_API_KEY "OpenRouter API key not found" export OPENROUTER_API_KEY="your-key" from openrouter.ai
vertex_ai GOOGLE_APPLICATION_CREDENTIALS "Google Cloud credentials not configured" gcloud auth application-default login
gemini_oauth OAuth session "No Gemini OAuth session" claudish auth gemini

Read the full file on GitHub · 292 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. yesterday First seen · 292 lines · 46 tokens per session scan A 6be9a481f376

Subscribe to this mod's changes

ui-analyse is a skill published in the GitHub repository MadAppGang/claude-code (279 stars, last pushed 5mo ago), licensed MIT. It adds 46 tokens to every session and 2,069 once invoked, about $0.0002 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 2026-09-03.

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