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 HermeticOrmus/LibreUIUX-Claude-Code --skill ui-agent-patternsgit clone --depth 1 https://github.com/HermeticOrmus/LibreUIUX-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/hermeticormus/libreuiux-claude-code/ui-agent-patterns)<a href="https://agentmods.dev/skills/hermeticormus/libreuiux-claude-code/ui-agent-patterns"><img src="https://agentmods.dev/badge/skills/hermeticormus/libreuiux-claude-code/ui-agent-patterns/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/hermeticormus/libreuiux-claude-code/ui-agent-patterns"><img src="https://agentmods.dev/badge/skills/hermeticormus/libreuiux-claude-code/ui-agent-patterns.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 | $0.00065 | $0.03844 |
| Opus 5.5 | $0.00026 | $0.01538 |
| Sonnet 5.5 | $0.00013 | $0.00769 |
| Haiku 4.5 | $0.00006 | $0.00384 |
Grade A, and why
ui-agent-patterns 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 19d 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 — 620 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI Agent Patterns
Patterns for orchestrating AI agents to generate, refine, and maintain user interfaces. This skill bridges Karpathy's "new programming vocabulary" with practical UI/UX development workflows.
When to Use This Skill
- Delegating complex UI generation to specialized agents
- Deciding between synthesis-master vs specialized agent architectures
- Orchestrating multi-agent workflows for design systems
- Managing handoffs between research, design, and implementation agents
- Building agent pipelines for iterative UI refinement
- Scaling UI generation beyond single-agent capabilities
Core Concepts
The New Programming Vocabulary
Karpathy's insight: LLMs introduce new programming primitives that extend beyond functions and objects:
| Primitive | Description | UI Application |
|---|---|---|
| Agents | Autonomous LLM-powered workers | UI generators, reviewers, refiners |
| Subagents | Delegated specialists | Component builders, accessibility checkers |
| Prompts | Instructions as code | Design specifications, component contracts |
| Contexts | Shared state and knowledge | Design tokens, brand guidelines |
| Memory | Persistent learning | Style preferences, past decisions |
| Modes | Behavioral configurations | Draft mode, production mode, audit mode |
| Permissions | Capability boundaries | Read-only review vs code modification |
| Tools | External capabilities | Figma API, browser DevTools, screenshot capture |
| Plugins | Modular extensions | Design system loaders, component libraries |
| Skills | Reusable knowledge | This file - codified expertise |
| Hooks | Lifecycle interceptors | Pre-commit design checks, post-render audits |
| MCP | Model Context Protocol | Tool integration standard |
| Workflows | Orchestrated sequences | Design-to-code pipelines |
Agent Architecture Patterns
Pattern 1: Synthesis-Master Architecture
A single powerful agent handles the full UI generation task.
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.
- 19d ago Changed · +28 tokens per session f6277349d0e6
- 1mo ago First seen · 620 lines · 37 tokens per session scan A 0b8f278e3858
ui-agent-patterns is a skill published in the GitHub repository HermeticOrmus/LibreUIUX-Claude-Code (115 stars, last pushed 15d ago), licensed MIT. It adds 65 tokens to every session and 3,844 once invoked, about $0.0003 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 2026-08-30.
Other skills, from other repositories
popular-web-designs
54 real design systems (Stripe, Linear, Vercel) as HTML/CSS.
anti-slop-design
Autonomous Principal Design Technologist. Cures vibe-coded software from AI frontend slop using curated token archetypes and 7-axis quality gating.
popular-web-designs
54 production-quality design systems extracted from real websites. Load a template to generate HTML/CSS that matches the visual identity of sites like Stripe, Linear, Vercel, Notion, Airbnb, and more. Each template includes colors, typography, components, layout rules, and ready-to-use CSS values.
figma-design
Figma workflows, components, auto layout, constraints, prototyping, design systems, and plugin development based on Figma Plugin API documentation.
popular-web-designs
54 real design systems (Stripe, Linear, Vercel) as HTML/CSS.
popular-web-designs
54 real design systems (Stripe, Linear, Vercel) as HTML/CSS.