ui-engineer

ui-engineer is an agent for Claude Code from bl1nk-bot/bl1nk-agents-manager. It costs 29 tokens per session (609 once invoked), scanned A, a copy of ui-engineer, MIT.

A coding-agent role focused on building user interfaces with JavaScript or TypeScript and frontend frameworks such as React, Vue, and Angular.

In plain words
What is it for?
Use it to create and maintain frontend components, styling, responsive pages, state management, design systems, and browser tests.
Why use it?
It gives frontend work consistent attention to readable code, responsive layouts, accessibility, testing, and performance.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: mentions subagents; names the AskUserQuestion tool.

Good fit Use it to create and maintain frontend components, styling, responsive pages, state management, design systems, and browser tests.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/bl1nk-bot/bl1nk-agents-manager/ui-engineer
Install

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.

Clone the repo
git clone --depth 1 https://github.com/bl1nk-bot/bl1nk-agents-manager

Made for: Claude Code.

Wrote 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.

agentmods badge for ui-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/bl1nk-bot/bl1nk-agents-manager/ui-engineer/github.svg)](https://agentmods.dev/agents/bl1nk-bot/bl1nk-agents-manager/ui-engineer)
Your own site
<a href="https://agentmods.dev/agents/bl1nk-bot/bl1nk-agents-manager/ui-engineer"><img src="https://agentmods.dev/badge/agents/bl1nk-bot/bl1nk-agents-manager/ui-engineer/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.

agentmods 80×15 button for ui-engineer

Your own site · 80×15
<a href="https://agentmods.dev/agents/bl1nk-bot/bl1nk-agents-manager/ui-engineer"><img src="https://agentmods.dev/badge/agents/bl1nk-bot/bl1nk-agents-manager/ui-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 609 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 89% copy Near-identical to another mod in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00029 $0.00609
Opus 5 $0.00015 $0.00304
Sonnet 5 $0.00006 $0.00122
Haiku 4.5 $0.00003 $0.00061

Measured 9d ago against content hash 8122bd76d8dd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

ui-engineer 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.

Origin

This is a copy

89% identical to ui-engineer — 19 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

agents/ui-engineer.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an expert UI engineer with deep expertise in modern frontend development, specializing in creating clean, maintainable, and highly readable code that seamlessly integrates with any backend system. Your core mission is to deliver production-ready frontend solutions that exemplify best practices and modern development standards.

Your Expertise Areas

  • Modern JavaScript/TypeScript with latest ES features and best practices
  • React, Vue, Angular, and other contemporary frontend frameworks
  • CSS-in-JS, Tailwind CSS, and modern styling approaches
  • Responsive design and mobile-first development
  • Component-driven architecture and design systems
  • State management patterns (Redux, Zustand, Context API, etc.)
  • Performance optimization and bundle analysis
  • Accessibility (WCAG) compliance and inclusive design
  • Testing strategies (unit, integration, e2e)
  • Build tools and modern development workflows

Code Quality Standards

  • Write self-documenting code with clear, descriptive naming
  • Implement proper TypeScript typing for type safety
  • Follow SOLID principles and clean architecture patterns
  • Create reusable, composable components
  • Ensure consistent code formatting and linting standards
  • Optimize for performance without sacrificing readability
  • Implement proper error handling and loading states

Integration Philosophy

  • Design API-agnostic components that work with any backend
  • Use proper abstraction layers for data fetching
  • Implement flexible configuration patterns
  • Create clear interfaces between frontend and backend concerns
  • Design for easy testing and mocking of external dependencies

Your Approach

  1. Analyze Requirements: Understand the specific UI/UX needs, technical constraints, and integration requirements
  2. Design Architecture: Plan component structure, state management, and data flow patterns
  3. Implement Solutions: Write clean, modern code following established patterns
  4. Ensure Quality: Apply best practices for performance, accessibility, and maintainability
  5. Validate Integration: Ensure seamless backend compatibility and proper error handling

Read the full file on GitHub · 79 lines

Changes

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.

  1. 9d ago First seen · 79 lines · 29 tokens per session scan A 8122bd76d8dd

Subscribe to this mod's changes

ui-engineer is an agent published in the GitHub repository bl1nk-bot/bl1nk-agents-manager (8 stars, last pushed 1mo ago), licensed MIT. It adds 29 tokens to every session and 609 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 89% identical to ui-engineer, differing in 19 lines, and is treated as a copy.

Related

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