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 beel-collab/presets.dev --skill uxui-principlesgit clone --depth 1 https://github.com/beel-collab/presets.devWrote 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/beel-collab/presets.dev/uxui-principles)<a href="https://agentmods.dev/skills/beel-collab/presets.dev/uxui-principles"><img src="https://agentmods.dev/badge/skills/beel-collab/presets.dev/uxui-principles/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/skills/beel-collab/presets.dev/uxui-principles"><img src="https://agentmods.dev/badge/skills/beel-collab/presets.dev/uxui-principles.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 | $0.00025 | $0.00451 |
| Opus 5.5 | $0.00010 | $0.00180 |
| Sonnet 5.5 | $0.00005 | $0.00090 |
| Haiku 4.5 | $0.00003 | $0.00045 |
Grade A, and why
uxui-principles 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 1mo 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.
What it actually says
UX/UI Principles
A collection of 5 agent skills for evaluating interfaces against 168 research-backed UX/UI principles, detecting antipatterns, and injecting UX context into AI-assisted design and coding sessions.
Source: https://github.com/uxuiprinciples/agent-skills
Skills
| Skill | Purpose |
|---|---|
uxui-evaluator |
Evaluate interface descriptions against 168 research-backed principles |
interface-auditor |
Detect UX antipatterns using the uxuiprinciples smell taxonomy |
ai-interface-reviewer |
Audit AI-powered interfaces against 44 AI-era UX principles |
flow-checker |
Check user flows against decision, error, and feedback principles |
vibe-coding-advisor |
Inject UX context into vibe coding sessions before implementation |
When to Use
- Auditing an existing interface for UX issues
- Checking if a UI follows research-backed best practices
- Detecting antipatterns and UX smells in designs
- Reviewing AI-powered interfaces for trust, transparency, and safety
- Getting UX guidance before or during implementation
How It Works
- Install any skill from the collection
- Describe the interface, screen, or flow you want to evaluate
- The skill evaluates against the relevant principles and returns structured findings with severity levels and remediation steps
- Optionally connect to the uxuiprinciples.com API for enriched output with full citations
Install
npx skills add uxuiprinciples/agent-skills
Limitations
- Use this skill only when the task clearly matches the scope described above.
- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.
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.
- 1mo ago First seen · 50 lines · 25 tokens per session scan A e12b1c989f0f
uxui-principles is a skill published in the GitHub repository beel-collab/presets.dev (3 stars, last pushed 5mo ago), licensed MIT. It adds 25 tokens to every session and 451 once invoked, about $0.0001 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 2026-09-03.
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