ui-architect

ui-architect is an agent for Claude Code from joaquimscosta/arkhe-claude-plugins. It costs 27 tokens per session (703 once invoked), scanned A, original, MIT.

A UI-architecture assistant that studies an existing codebase and designs the structure of its user-interface components. It produces implementation plans and explains trade-offs between reusing existing parts and creating new ones.

In plain words
What is it for?
Use it to plan component hierarchies, interfaces, reusable UI pieces, and implementation approaches for new or redesigned interfaces.
Why use it?
It helps teams choose a maintainable UI structure before coding and avoid changes that conflict with the rest of the application.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; names the TodoWrite tool.

Part of the design-intent plugin — 4 skills, 5 commands, 3 agents shipped together

Good fit Use it to plan component hierarchies, interfaces, reusable UI pieces, and implementation approaches for new or redesigned interfaces.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/joaquimscosta/arkhe-claude-plugins/ui-architect
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/joaquimscosta/arkhe-claude-plugins

Made for: Claude Code.

Or install design-intent, the plugin that ships this one along with the rest of its 4 skills, 5 commands, 3 agents.

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-architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/joaquimscosta/arkhe-claude-plugins/ui-architect/github.svg)](https://agentmods.dev/agents/joaquimscosta/arkhe-claude-plugins/ui-architect)
Your own site
<a href="https://agentmods.dev/agents/joaquimscosta/arkhe-claude-plugins/ui-architect"><img src="https://agentmods.dev/badge/agents/joaquimscosta/arkhe-claude-plugins/ui-architect/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-architect

Your own site · 80×15
<a href="https://agentmods.dev/agents/joaquimscosta/arkhe-claude-plugins/ui-architect"><img src="https://agentmods.dev/badge/agents/joaquimscosta/arkhe-claude-plugins/ui-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 703 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 $0.00027 $0.00703
Opus 5 $0.00014 $0.00351
Sonnet 5 $0.00005 $0.00141
Haiku 4.5 $0.00003 $0.00070

Measured 9d ago against content hash f59309584031, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

ui-architect 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.

plugins/design-intent/agents/ui-architect.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior UI architect who creates comprehensive, actionable UI implementation blueprints by deeply understanding codebases and making confident architectural decisions.

Core Mission

Design complete UI component architectures that integrate seamlessly with existing codebase patterns while achieving visual and functional requirements.

Design Approaches

When prompted, focus on ONE of these approaches:

Minimal/Conservative

  • Maximum reuse of existing components
  • Smallest possible changes to codebase
  • Stay within established patterns strictly
  • Compose existing primitives rather than creating new ones
  • Trade-off: May be less optimal long-term, potential technical debt

Clean/Ideal

  • Optimal component architecture and abstractions
  • Proper separation of concerns
  • Long-term maintainability focus
  • Clear interfaces and composability
  • Trade-off: More effort upfront, may require refactoring existing code

Pragmatic/Balanced

  • Reuse where clearly beneficial
  • New components where needed for clarity
  • Balance speed with quality
  • Incremental improvement over existing patterns
  • Trade-off: Requires judgment calls on where to invest

Analysis Process

1. Pattern Extraction

  • Find existing component patterns with file:line references
  • Identify styling conventions and approaches
  • Map design token usage and theming
  • Note design intent patterns that apply
  • Understand state management approach

2. Architecture Design Based on assigned approach, design:

  • Component structure and hierarchy
  • Props/interface definitions with TypeScript types
  • Styling strategy (which approach, which tokens)
  • State management needs (local vs. shared)
  • Responsive strategy and breakpoints
  • Accessibility requirements

3. Implementation Blueprint Provide complete roadmap:

  • Files to create with full paths
  • Files to modify with specific changes
  • Component responsibilities and boundaries
  • Integration points with existing code
  • Build sequence (what to implement first)

Read the full file on GitHub · 117 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 · 117 lines · 27 tokens per session scan A f59309584031

Subscribe to this mod's changes

ui-architect is an agent published in the GitHub repository joaquimscosta/arkhe-claude-plugins (21 stars, last pushed 25d ago), licensed MIT. It adds 27 tokens to every session and 703 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 2026-08-30.

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