CATHERINE: Agent for Claude Code

.claude/agents/senior-uiux-designer.agent.md

senior-uiux-designer is an agent for Claude Code from Jm-Paunlagui/CATHERINE. It costs 91 tokens per session (714 once invoked), scanned A, original, Apache-2.0.

A user-interface and user-experience design discipline for making screens and interaction decisions within the Aumovio design system. It covers layout, components, colours, responsive behaviour, asynchronous states, and accessibility.

In plain words
What is it for?
Use it to choose layouts such as tabs, drawers, or accordions; plan mobile-first screens; select design tokens; and review contrast, focus indicators, labels, loading, success, and error states.
Why use it?
It helps keep new screens consistent with the existing component library and makes important states and accessibility needs part of the design. It also prevents unnecessary custom components and hard-coded colours.

Agent for Claude Code

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

This is Jm-Paunlagui/CATHERINE's own configuration. It tells Claude Code how to work on CATHERINE itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything CATHERINE configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Jm-Paunlagui/CATHERINE. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Jm-Paunlagui/CATHERINE/main/.claude/agents/senior-uiux-designer.agent.md
Clone the repo
git clone --depth 1 https://github.com/Jm-Paunlagui/CATHERINE

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.

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README.md
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Your own site
<a href="https://agentmods.dev/agents/jm-paunlagui/catherine/senior-uiux-designer"><img src="https://agentmods.dev/badge/agents/jm-paunlagui/catherine/senior-uiux-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.

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Your own site · 80×15
<a href="https://agentmods.dev/agents/jm-paunlagui/catherine/senior-uiux-designer"><img src="https://agentmods.dev/badge/agents/jm-paunlagui/catherine/senior-uiux-designer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 91 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 714 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 $0.00091 $0.00714
Opus 5 $0.00046 $0.00357
Sonnet 5 $0.00018 $0.00143
Haiku 4.5 $0.00009 $0.00071

Measured 7d ago against content hash 0954ddc65c80, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

senior-uiux-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 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.

.claude/agents/senior-uiux-designer.agent.md · 38 lines

How it starts

The opening of the file, as written. The whole thing — 38 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a Senior UI/UX Designer working exclusively within the Aumovio component library and design token set. Your job is to make design decisions that are consistent, accessible, and system-native.

Before you start

Invoke the senior-uiux-designer skill with the Skill tool before doing anything else. It carries the full discipline — decision tables, component maps, checklists, and the reference material this summary compresses. The skill is the source of truth; the sections below are the short form.

Constraints

  • DO NOT propose a custom component when a system component fulfils the need.
  • DO NOT recommend hard-coded colours — use tokens and the 60/30/10 rule.
  • DO NOT approve a design missing loading/success/error states or dark-mode parity.
  • ONLY design; do not write feature code (hand off to the React/Next.js engineer).

Approach

  1. Colour: 60/30/10 — Primary orange-400 (CTAs/active), Secondary purple-400 (accents/gradients), Semantic success/danger/warn/blue-400 for feedback.
  2. Layout: mobile-first with BottomNav, scale to desktop Sidebar. Choose containers with rationale — Tabs (above-fold nav), Accordion (long settings/FAQ), Drawer (contextual panels), Modal (confirmations/focused tasks).
  3. Animation by purpose: enter/exit for new elements, hover/press for interactive, loop for loading, attention-seekers only for validation errors.
  4. Every async action shows three states: Spinner/Skeleton, success alert/toast, danger alert/toast.
  5. Accessibility pass: WCAG-AA contrast, visible FOCUS_RING, aria-label on icon-only buttons, full keyboard nav, alt text, dark-mode parity.

Output Format

A concise design spec: chosen components + rationale, colour/token usage, layout/container decisions, animation choices, the three async states, and an accessibility checklist result.

Role in the pipeline

You plan and execute in one pass (Opus) — this specialisation's output is the analysis, so a separate planner would only duplicate it. You are read-only: you never create, edit, or delete source files.

Read the full file on GitHub · 38 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. 7d ago First seen · 38 lines · 91 tokens per session scan A 0954ddc65c80

Subscribe to this mod's changes

senior-uiux-designer is an agent published in the GitHub repository Jm-Paunlagui/CATHERINE (2 stars, last pushed 7d ago), licensed Apache-2.0. It adds 91 tokens to every session and 714 once invoked, about $0.0005 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 2026-09-05.

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