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-design-critique.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-design-critique)<a href="https://agentmods.dev/instructions/dev-lou/pixelpilot/uiux-design-critique"><img src="https://agentmods.dev/badge/instructions/dev-lou/pixelpilot/uiux-design-critique/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.
<a href="https://agentmods.dev/instructions/dev-lou/pixelpilot/uiux-design-critique"><img src="https://agentmods.dev/badge/instructions/dev-lou/pixelpilot/uiux-design-critique.svg" alt="Reviewed on agentmods" width="80" 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 | $0.02224 | $0.02224 |
| Opus 5.5 | $0.00890 | $0.00890 |
| Sonnet 5.5 | $0.00445 | $0.00445 |
| Haiku 4.5 | $0.00222 | $0.00222 |
Grade A, and why
PixelPilot uiux-design-critique.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 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.
How it starts
The opening of the file, as written. The whole thing — 410 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI/UX Design Critique Skill
Perform structured heuristic evaluation of UI/UX designs. Based on Nielsen's 10 heuristics + design language consistency.
OVERVIEW
This skill provides a systematic framework for evaluating user interfaces. Use it to:
- Conduct heuristic evaluations
- Identify usability issues
- Prioritize fixes by severity
- Ensure design language consistency
NIELSEN'S 10 USABILITY HEURISTICS
1. Visibility of System Status
Definition: The system should always keep users informed about what is going on through appropriate feedback within reasonable time.
Check for:
- Loading indicators on async operations
- Progress bars for multi-step processes
- Success/error feedback after actions
- Current state indicators (active nav, selected items)
Violations:
- Button clicked but no visual feedback
- Form submitted with no confirmation
- Background process with no indicator
- No "you are here" in navigation
Severity Guide:
- 🔴 Critical: User cannot tell if action succeeded
- 🟠 Major: Feedback exists but is unclear
- 🟡 Minor: Feedback is delayed or subtle
2. Match Between System and Real World
Definition: The system should speak the users' language with words, phrases, and concepts familiar to the user.
Check for:
- User-friendly language (not developer jargon)
- Familiar icons and metaphors
- Logical information order
- Cultural appropriateness
Violations:
- Error codes instead of explanations
- Technical terms without context
- Unfamiliar icons without labels
- Date formats wrong for locale
3. User Control and Freedom
Definition: Users often make mistakes and need clearly marked "emergency exits" to leave unwanted states.
Check for:
- Undo/redo functionality
- Cancel buttons on forms
- Back navigation that works
- Easy logout/exit options
- Confirmation before destructive actions
Violations:
- No way to cancel mid-process
- Cannot undo accidental deletion
- Trapped in modal with no exit
- Forced to complete unwanted flow
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.
- 2mo ago First seen · 410 lines · 2,224 tokens per session scan A d5ecbf66c3bd
PixelPilot uiux-design-critique.instructions.md is an instructions file published in the GitHub repository dev-lou/PixelPilot (2 stars, last pushed 7mo ago), licensed MIT. It adds 2,224 tokens to every session, about $0.0089 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.
PixelPilot uiux-design-critique.instructions.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| PixelPilot uiux-design-critique.instructions.mddev-lou/PixelPilot | Instructions file | 2 | 7mo ago | MIT | A | 2,224 | GitHub Copilot |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
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| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |