Borrowing it
Nothing to install: this file belongs to dev-lou/PixelPilot. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/dev-lou/PixelPilot/main/vscode/.github/instructions/uiux-responsive-tester.instructions.mdgit clone --depth 1 https://github.com/dev-lou/PixelPilotWrote 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/instructions/dev-lou/pixelpilot/uiux-responsive-tester)<a href="https://agentmods.dev/instructions/dev-lou/pixelpilot/uiux-responsive-tester"><img src="https://agentmods.dev/badge/instructions/dev-lou/pixelpilot/uiux-responsive-tester.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 | $0.02866 | $0.02866 |
| Opus 5 | $0.01433 | $0.01433 |
| Sonnet 5 | $0.00573 | $0.00573 |
| Haiku 4.5 | $0.00287 | $0.00287 |
Grade A, and why
PixelPilot uiux-responsive-tester.instructions.md 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 3d 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 — 465 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI/UX Responsive Testing Skill
Systematic responsive design verification across viewports. Ensures touch targets, overflow handling, and font scaling.
OVERVIEW
This skill generates comprehensive responsive testing checklists covering:
- Viewport breakpoint testing
- Touch target size verification (≥44px)
- Horizontal overflow detection
- Font scaling and readability
- Device-specific considerations
STANDARD VIEWPORTS
Primary Test Breakpoints
| Name | Width | Device Example | Priority |
|---|---|---|---|
| Mobile S | 320px | iPhone SE | 🟡 |
| Mobile M | 375px | iPhone 12/13 | 🔴 |
| Mobile L | 390px | iPhone 14/15 | 🔴 |
| Mobile XL | 428px | iPhone 14 Plus | 🟡 |
| Tablet | 768px | iPad Mini | 🔴 |
| Tablet L | 1024px | iPad Pro 11" | 🟡 |
| Desktop | 1280px | Laptop | 🔴 |
| Desktop L | 1440px | Desktop | 🟡 |
| Desktop XL | 1920px | Large monitor | 🟡 |
Breakpoint Tokens
:root {
--breakpoint-sm: 640px;
--breakpoint-md: 768px;
--breakpoint-lg: 1024px;
--breakpoint-xl: 1280px;
}
/* Usage */
@media (min-width: 768px) { /* md and up */ }
@media (min-width: 1024px) { /* lg and up */ }
TESTING MATRIX TEMPLATE
Page: [Page Name]
| Viewport | Layout OK | Touch Targets | No Overflow | Font Readable | Notes |
|---|---|---|---|---|---|
| 390px | ✅ / ❌ | ✅ / ❌ | ✅ / ❌ | ✅ / ❌ | |
| 768px | ✅ / ❌ | ✅ / ❌ | ✅ / ❌ | ✅ / ❌ | |
| 1280px | ✅ / ❌ | ✅ / ❌ | ✅ / ❌ | ✅ / ❌ |
TOUCH TARGET REQUIREMENTS
Minimum Sizes
| Element | Minimum Size | WCAG Level |
|---|---|---|
| Interactive elements | 44×44px | AAA (recommended) |
| Links in text | 24×24px | AA (minimum) |
| Dense UI (technical) | 32×32px | Context-dependent |
CSS Implementation
/* Base interactive element */
.btn,
.link,
.clickable {
min-height: 44px;
min-width: 44px;
padding: var(--space-3) var(--space-4); /* 12px 16px */
}
/* Touch-friendly spacing for links */
.nav-link {
padding: var(--space-3);
margin: calc(var(--space-1) * -1); /* Negative margin to maintain visual spacing */
}
/* Icon buttons */
.btn--icon {
width: 44px;
height: 44px;
display: inline-flex;
align-items: center;
justify-content: center;
}
/* Form inputs */
input,
select,
textarea {
min-height: 44px;
padding: var(--space-3);
}
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.
- 3d ago First seen · 465 lines · 2,866 tokens per session scan A e55f0d182226
PixelPilot uiux-responsive-tester.instructions.md is an instructions file published in the GitHub repository dev-lou/PixelPilot (2 stars, last pushed 5mo ago), licensed MIT. It adds 2,866 tokens to every session, about $0.0143 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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