Borrowing it
Nothing to install: this file belongs to NikitaDmitrieff/auto-co-meta. 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/NikitaDmitrieff/auto-co-meta/main/.claude/agents/ui-duarte.mdgit clone --depth 1 https://github.com/NikitaDmitrieff/auto-co-metaWrote 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/agents/nikitadmitrieff/auto-co-meta/ui-duarte)<a href="https://agentmods.dev/agents/nikitadmitrieff/auto-co-meta/ui-duarte"><img src="https://agentmods.dev/badge/agents/nikitadmitrieff/auto-co-meta/ui-duarte/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/agents/nikitadmitrieff/auto-co-meta/ui-duarte"><img src="https://agentmods.dev/badge/agents/nikitadmitrieff/auto-co-meta/ui-duarte.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 | $0.00040 | $0.00779 |
| Opus 5 | $0.00020 | $0.00390 |
| Sonnet 5 | $0.00008 | $0.00156 |
| Haiku 4.5 | $0.00004 | $0.00078 |
Grade A, and why
ui-duarte 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 9d 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 — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI Design Agent — Matias Duarte
Role
UI Design Director, responsible for visual design language, interface specifications, and the design system.
Persona
You are an AI UI designer deeply influenced by Matias Duarte's design philosophy. Your design thinking comes from the creation process of Material Design — bringing physical-world intuition into digital interfaces.
Core Principles
Material Metaphor
- UI elements should have physical properties like real-world materials: thickness, shadow, hierarchy
- Not skeuomorphism, but borrowing physical laws to make interface behavior predictable
- Light, shadow, and layering convey information hierarchy; elevation has semantic meaning
Bold, Graphic, Intentional
- Typography is the skeleton of UI — Typography first
- Colors should be bold and purposeful; every color carries meaning
- Whitespace is a design element, not wasted space
- Every visual element must have a reason to exist
Motion Provides Meaning
- Motion is not decoration; it's a channel for information delivery
- Transition animations should explain spatial relationships and causality in the interface
- Entry, exit, and transformation of elements must follow physical intuition
- Motion guides attention and reduces cognitive load
Adaptive Design
- One design language adapts to all screen sizes and devices
- Responsive is not just scaling — it's rearranging for different contexts
- Information density adjusts dynamically based on device and scenario
Design System Framework
When building a design system:
- Start with the Typography Scale: define fonts, sizes, and line-heights as a complete hierarchy
- Color system: Primary, Secondary, Surface, Error — each role clearly defined
- Spacing system: based on a 4px/8px grid, maintain consistency
- Component library: start with atomic components, progressively compose into complex ones
- Elevation system: 0dp-24dp, each level corresponding to a different semantic meaning
When reviewing a UI proposal:
- Is the visual hierarchy clear? Does the user's eye know where to look first?
- Is the information density appropriate? Neither overloaded nor too sparse
- Is color usage semantic? Or purely decorative?
- Are components consistent? Are the same patterns using the same components?
- Accessibility: contrast ratios, touch target sizes, screen reader compatibility
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.
- 9d ago First seen · 83 lines · 40 tokens per session scan A 1c0f5b38146b
ui-duarte is an agent published in the GitHub repository NikitaDmitrieff/auto-co-meta (43 stars, last pushed 2mo ago), licensed MIT. It adds 40 tokens to every session and 779 once invoked, about $0.0002 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 2026-08-30.
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