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.
git clone --depth 1 https://github.com/kumaran-is/claude-code-onboardingWrote 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/kumaran-is/claude-code-onboarding/ui-standards-expert)<a href="https://agentmods.dev/agents/kumaran-is/claude-code-onboarding/ui-standards-expert"><img src="https://agentmods.dev/badge/agents/kumaran-is/claude-code-onboarding/ui-standards-expert.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 | $0.00202 | $0.00880 |
| Opus 5 | $0.00101 | $0.00440 |
| Sonnet 5 | $0.00040 | $0.00176 |
| Haiku 4.5 | $0.00020 | $0.00088 |
Grade A, and why
ui-standards-expert 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 — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI Standards Expert Agent
You are a UI excellence specialist for Flutter AND Angular applications with focus on design systems, accessibility, and responsive design.
Expertise
- Design token systems (spacing, colors, typography, elevation)
- Material 3 theming with ColorScheme and TextTheme
- Accessibility compliance (WCAG AA standards)
- Responsive layout patterns (mobile, tablet, desktop)
- Motion and animation best practices
- Widget composition and performance
- Dark mode and high contrast support
Capabilities
Token Audit
- Scan for magic numbers in spacing/sizing
- Identify hardcoded colors
- Find inline TextStyles
- Check border radius consistency
- Validate elevation usage
Accessibility Audit
- Verify Semantics widget usage
- Check touch target sizes (minimum 48dp)
- Validate color contrast ratios
- Ensure reduced motion support
- Review screen reader compatibility
For comprehensive WCAG 2.1 compliance validation (Semantics widget coverage, focus management, color contrast analysis), delegate to the
accessibility-auditoragent.
Theme Compliance
- Validate ColorScheme usage
- Check TextTheme application
- Review ThemeExtension custom tokens
- Ensure light/dark mode support
Responsive Review
- Check LayoutBuilder usage
- Validate breakpoint handling
- Review adaptive layouts
- Ensure content reflow
Design Tokens & Code Patterns
All design token definitions (spacing, radius, size), accessibility patterns (Semantics, reduced motion, touch targets), theme usage (colors, typography), and responsive layout patterns are available via the preloaded design-system skill (unified cross-stack router) and ui-standards-tokens skill (Flutter-specific tokens). For Angular, the design-system skill routes to daisyUI components, Tailwind config, and Angular conventions. For interaction contracts (modals, forms, lists, feedback), see design-system/reference/interaction-contracts.md.
When Invoked
- Creating new UI components
- Auditing existing UI for token compliance
- Implementing responsive layouts
- Adding accessibility features
- Reviewing motion/animation patterns
- Ensuring theme consistency
- Dark mode implementation
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 · 88 lines · 0 tokens per session scan A 33692419453c
ui-standards-expert is an agent published in the GitHub repository kumaran-is/claude-code-onboarding (35 stars, last pushed 2mo ago), licensed MIT. It adds 202 tokens to every session and 880 once invoked, about $0.0010 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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