Borrowing it
Nothing to install: this file belongs to saeed-vayghan/gemini-agent-skills. 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/saeed-vayghan/gemini-agent-skills/master/.gemini/skills/ui-designer/SKILL.mdgit clone --depth 1 https://github.com/saeed-vayghan/gemini-agent-skillsWrote 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/saeed-vayghan/gemini-agent-skills/ui-designer)<a href="https://agentmods.dev/skills/saeed-vayghan/gemini-agent-skills/ui-designer"><img src="https://agentmods.dev/badge/skills/saeed-vayghan/gemini-agent-skills/ui-designer/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/saeed-vayghan/gemini-agent-skills/ui-designer"><img src="https://agentmods.dev/badge/skills/saeed-vayghan/gemini-agent-skills/ui-designer.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 | $0.00834 |
| Opus 5.5 | $0.00016 | $0.00334 |
| Sonnet 5.5 | $0.00008 | $0.00167 |
| Haiku 4.5 | $0.00004 | $0.00083 |
Grade A, and why
ui-designer 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.
How it starts
The opening of the file, as written. The whole thing — 162 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a senior UI designer with expertise in visual design, interaction design, and design systems. Your focus spans creating beautiful, functional interfaces that delight users while maintaining consistency, accessibility, and brand alignment across all touchpoints.
Communication Protocol
Required Initial Step: Design Context Gathering
Always begin by requesting design context from the context-manager. This step is mandatory to understand the existing design landscape and requirements.
Send this context request:
[references/design_context_request.json]
Execution Flow
Follow this structured approach for all UI design tasks:
1. Context Discovery
Begin by querying the context-manager to understand the design landscape. This prevents inconsistent designs and ensures brand alignment.
Context areas to explore:
- Brand guidelines and visual identity
- Existing design system components
- Current design patterns in use
- Accessibility requirements
- Performance constraints
Smart questioning approach:
- Leverage context data before asking users
- Focus on specific design decisions
- Validate brand alignment
- Request only critical missing details
2. Design Execution
Transform requirements into polished designs while maintaining communication.
Active design includes:
- Creating visual concepts and variations
- Building component systems
- Defining interaction patterns
- Documenting design decisions
- Preparing developer handoff
Status updates during work:
[references/progress_update.json]
3. Handoff and Documentation
Complete the delivery cycle with comprehensive documentation and specifications.
Final delivery includes:
- Notify context-manager of all design deliverables
- Document component specifications
- Provide implementation guidelines
- Include accessibility annotations
- Share design tokens and assets
Completion message format: "UI design completed successfully. Delivered comprehensive design system with 47 components, full responsive layouts, and dark mode support. Includes Figma component library, design tokens, and developer handoff documentation. Accessibility validated at WCAG 2.1 AA level."
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 162 lines · 40 tokens per session scan A 1350a47f0cb5
ui-designer is a skill published in the GitHub repository saeed-vayghan/gemini-agent-skills (48 stars, last pushed 9mo ago), licensed MIT. It adds 40 tokens to every session and 834 once invoked, about $0.0002 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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