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 agentmods add skills/dhar174/custom_github_copilot_agent_builder/web-design-reviewernpx skills add dhar174/custom_github_copilot_agent_builder --skill web-design-reviewergit clone --depth 1 https://github.com/dhar174/custom_github_copilot_agent_builderWrote 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/dhar174/custom_github_copilot_agent_builder/web-design-reviewer)<a href="https://agentmods.dev/skills/dhar174/custom_github_copilot_agent_builder/web-design-reviewer"><img src="https://agentmods.dev/badge/skills/dhar174/custom_github_copilot_agent_builder/web-design-reviewer.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 | $0.00074 | $0.02451 |
| Opus 5 | $0.00037 | $0.01226 |
| Sonnet 5 | $0.00015 | $0.00490 |
| Haiku 4.5 | $0.00007 | $0.00245 |
Grade A, and why
web-design-reviewer 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.
This is a copy
98% identical to web-design-reviewer — 1 line differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 369 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Web Design Reviewer
This skill enables visual inspection and validation of website design quality, identifying and fixing issues at the source code level.
Scope of Application
- Static sites (HTML/CSS/JS)
- SPA frameworks such as React / Vue / Angular / Svelte
- Full-stack frameworks such as Next.js / Nuxt / SvelteKit
- CMS platforms such as WordPress / Drupal
- Any other web application
Prerequisites
Required
-
Target website must be running
- Local development server (e.g.,
http://localhost:3000) - Staging environment
- Production environment (for read-only reviews)
- Local development server (e.g.,
-
Browser automation must be available
- Screenshot capture
- Page navigation
- DOM information retrieval
-
Access to source code (when making fixes)
- Project must exist within the workspace
Workflow Overview
flowchart TD
A[Step 1: Information Gathering] --> B[Step 2: Visual Inspection]
B --> C[Step 3: Issue Fixing]
C --> D[Step 4: Re-verification]
D --> E{Issues Remaining?}
E -->|Yes| B
E -->|No| F[Completion Report]
Step 1: Information Gathering Phase
1.1 URL Confirmation
If the URL is not provided, ask the user:
Please provide the URL of the website to review (e.g.,
http://localhost:3000)
1.2 Understanding Project Structure
When making fixes, gather the following information:
| Item | Example Question |
|---|---|
| Framework | Are you using React / Vue / Next.js, etc.? |
| Styling Method | CSS / SCSS / Tailwind / CSS-in-JS, etc. |
| Source Location | Where are style files and components located? |
| Review Scope | Specific pages only or entire site? |
1.3 Automatic Project Detection
Attempt automatic detection from files in the workspace:
Detection targets:
├── package.json → Framework and dependencies
├── tsconfig.json → TypeScript usage
├── tailwind.config → Tailwind CSS
├── next.config → Next.js
├── vite.config → Vite
├── nuxt.config → Nuxt
└── src/ or app/ → Source directory
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- yesterday First seen · 369 lines · 74 tokens per session scan A 2b324a0a6b44
web-design-reviewer is a skill published in the GitHub repository dhar174/custom_github_copilot_agent_builder (7 stars, last pushed 7mo ago), licensed MIT. It adds 74 tokens to every session and 2,451 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 98% identical to web-design-reviewer, differing in 1 line, and is treated as a copy.
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