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.
npx skills add MadAppGang/claude-code --skill ui-design-reviewgit clone --depth 1 https://github.com/MadAppGang/claude-codeWrote 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.
[](https://agentmods.dev/skills/madappgang/claude-code/ui-design-review)<a href="https://agentmods.dev/skills/madappgang/claude-code/ui-design-review"><img src="https://agentmods.dev/badge/skills/madappgang/claude-code/ui-design-review.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00034 | $0.02041 |
| Opus 5 | $0.00017 | $0.01020 |
| Sonnet 5 | $0.00007 | $0.00408 |
| Haiku 4.5 | $0.00003 | $0.00204 |
Grade A, and why
ui-design-review scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 292 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI Design Review Skill
Overview
This skill provides prompting patterns, checklists, and templates for conducting UI design reviews using Gemini's multimodal vision capabilities.
When to Use
- Reviewing screenshots, wireframes, or mockups
- Conducting accessibility audits
- Validating design system consistency
- Comparing implementation to design reference
- Analyzing UI patterns and usability
Model Routing
Gemini API Key Detection
# Check API key availability and select model
determine_gemini_model() {
if [[ -n "$GEMINI_API_KEY" ]]; then
echo "g/gemini-3-pro-preview" # Direct Gemini API
elif [[ -n "$OPENROUTER_API_KEY" ]]; then
echo "google/gemini-3-pro-preview" # OpenRouter
else
echo "ERROR: No API key available (need GEMINI_API_KEY or OPENROUTER_API_KEY)"
return 1
fi
}
GEMINI_MODEL=$(determine_gemini_model)
Why or/ Prefix for OpenRouter
The model ID google/gemini-3-pro-preview collides with Claudish's automatic routing:
| Model ID | Routes To | Requires |
|---|---|---|
google/gemini-* |
Gemini Direct | GEMINI_API_KEY |
google/gemini-* |
OpenRouter | OPENROUTER_API_KEY |
g/gemini-* |
Gemini Direct (explicit) | GEMINI_API_KEY |
Rule: Always use or/ prefix when routing Google models through OpenRouter.
Passing Images to Claudish
Method 1: Image File Path (Recommended)
# Pass image file directly with --image flag
npx claudish --model "$GEMINI_MODEL" --image "$IMAGE_PATH" --quiet --auto-approve <<< "$ANALYSIS_PROMPT"
# Example
npx claudish --model "g/gemini-3-pro-preview" --image "screenshots/dashboard.png" --quiet --auto-approve <<< "Analyze this UI for usability issues."
Method 2: Base64 Encoded (For Inline Images)
# Encode image to base64
IMAGE_B64=$(base64 -i "$IMAGE_PATH")
# Include in prompt with data URI
printf '%s' "[Image: data:image/png;base64,$IMAGE_B64]
Analyze this UI for usability issues." | npx claudish --stdin --model "$GEMINI_MODEL" --quiet --auto-approve
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.
- 4d ago First seen · 292 lines · 34 tokens per session scan A cac68b6867d3
ui-design-review is a skill published in the GitHub repository MadAppGang/claude-code (279 stars, last pushed 5mo ago), licensed MIT. It adds 34 tokens to every session and 2,041 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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