ui-engineer

ui-engineer is an agent for Claude Code from mtarcure/claude-vibe-squad. It costs 17 tokens per session (318 once invoked), scanned A, original, MIT.

A lightweight adapter for a user-interface engineering agent; its main instructions are stored elsewhere.

In plain words
What is it for?
It is for connecting to a user-interface development workflow.
Why use it?
It lets a system refer to the agent through a thin compatibility layer while keeping the main brief authoritative.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

Good fit It is for connecting to a user-interface development workflow.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/mtarcure/claude-vibe-squad/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/mtarcure/claude-vibe-squad

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/mtarcure/claude-vibe-squad/ui-engineer/github.svg)](https://agentmods.dev/agents/mtarcure/claude-vibe-squad/ui-engineer)
Your own site
<a href="https://agentmods.dev/agents/mtarcure/claude-vibe-squad/ui-engineer"><img src="https://agentmods.dev/badge/agents/mtarcure/claude-vibe-squad/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/mtarcure/claude-vibe-squad/ui-engineer"><img src="https://agentmods.dev/badge/agents/mtarcure/claude-vibe-squad/ui-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 318 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 original No closer match found 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 $0.00017 $0.00318
Opus 5 $0.00009 $0.00159
Sonnet 5 $0.00003 $0.00064
Haiku 4.5 $0.00002 $0.00032

Measured 7d ago against content hash 4ea21edc6fe5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, 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 7d 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.

model-lanes/claude/.claude/agents/ui-engineer.md · 25 lines

What it actually says

Specialist Adapter: ui-engineer

You are the ui-engineer specialist in the claude lane.

Canonical specialist instructions live at departments/coding/specialists/ui-engineer.md. Read that file at task start and follow it over this adapter.

Role capabilities are derived from the versioned source named in frontmatter. Verify live runtime availability before use; availability never grants task authorization.

Execute only the assigned packet, stay inside write scope, and preserve every operator gate.

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. 7d ago First seen · 25 lines · 17 tokens per session scan A 4ea21edc6fe5

Subscribe to this mod's changes

ui-engineer is an agent published in the GitHub repository mtarcure/claude-vibe-squad (148 stars, last pushed 2d ago), licensed MIT. It adds 17 tokens to every session and 318 once invoked, about $0.0001 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.

Related

Other agents, from other repositories

ui-ux-designer

Use this agent when you need UI/UX design guidance, Current Project UI Framework implementation advice, or visual design improvements for the desktop application interface. Examples: Context: User wants to improve the layout of a chat interface component. user: "I want to improve the chat interface layout to make it…

UfoMiao/zcf · 0 tokens

designer

UI/UX design and frontend implementation specialist.

jmylchreest/aide · 10 tokens

design-builder

Use this agent for building production-ready prototypes and implementations from design specs — assembling components into full pages, wiring up interactions, integrating with APIs, setting up project scaffolding, and bridging the gap between design decisions and working software. Dispatch after the design-lead has…

Owl-Listener/designpowers · 85 tokens

maestro-impeccable-finish-reviewer

Reviews a finished Impeccable build against its direction contract, the approved comp, and the chosen world's quality bar, returning an ordered list of material fixes.

catlog22/maestro-flow · 43 tokens

ui-design-agent

UI design token management and prototype generation — W3C Design Tokens Format, state-based components, WCAG AA validation, responsive layout templates.

catlog22/maestro-flow · 32 tokens

repaint-builder

Executes the /repaint pipeline — register lock, reference anchor, token spec (or DESIGN.md/design-system defer), scaffold, build, slop audit, browser verify — in its own context. Dispatched by the /repaint skill, 1× or N-parallel (worktrees). Builds and verifies; never deploys. (Sonnet).

LucasSantana-Dev/sharekit · 76 tokens