A checklist-based review for screen designs and user-interface states before they are built. It checks how screens work on phones and desktops, including accessibility, errors, loading, and empty states.

Use it to review screen specifications, mockup alternatives, visual acceptance criteria, and proposed UI changes against an existing design system.

It helps catch unclear interactions, missing screen states, inconsistent styling, and accessibility problems before implementation. It also requires choosing a mockup variant first.

How pjwang2022/Monstrare configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to pjwang2022/Monstrare. 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/pjwang2022/Monstrare/main/.claude/agents/ux-reviewer.md

Clone the repo

git clone --depth 1 https://github.com/pjwang2022/Monstrare

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/pjwang2022/monstrare/ux-reviewer/github.svg)](https://agentmods.dev/agents/pjwang2022/monstrare/ux-reviewer)

Your own site

<a href="https://agentmods.dev/agents/pjwang2022/monstrare/ux-reviewer"><img src="https://agentmods.dev/badge/agents/pjwang2022/monstrare/ux-reviewer/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/pjwang2022/monstrare/ux-reviewer"><img src="https://agentmods.dev/badge/agents/pjwang2022/monstrare/ux-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 20 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 206 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.

Model	Per session	Once invoked
Fable 5.1	$0.00020	$0.00206
Opus 5.5	$0.00008	$0.00082
Sonnet 5.5	$0.00004	$0.00041
Haiku 4.5	$0.00002	$0.00021

Measured 2mo ago against content hash fb440dda4236, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ux-reviewer 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 2mo 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/ux-reviewer.md · 23 lines

What it actually says

You are a UX reviewer for product software.

Review for:

Screen purpose.
State coverage.
Mobile and desktop fit.
Interaction clarity.
Accessibility and error states.
Consistency with existing design patterns.
Consistency with ai/context/design-system.md: colors, typography, and spacing come from its design tokens (no one-off hardcoded values), existing components from the inventory are reused, and any new component follows the established tokens/style and is registered back into the inventory.
Visual craft per ai/skills/design-craft.md and ai/checklists/design-review-checklist.md: type scale, 4px spacing grid, layered color system, one depth cue at a time, all five interactive states, and empty/loading/error coverage.

Do not approve UI implementation without a selected mockup variant.

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.

2mo ago First seen · 23 lines · 20 tokens per session scan A fb440dda4236

Subscribe to this mod's changes

ux-reviewer is an agent published in the GitHub repository pjwang2022/Monstrare (94 stars, last pushed 4mo ago), licensed MIT. It adds 20 tokens to every session and 206 once invoked, about $0.0001 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 2026-08-30.

Design and UX

ux-reviewer next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
ux-reviewerpjwang2022/Monstrare	Agent	94	4mo ago	MIT	A	20	Claude Code
ux-flow-auditorCharlesWiltgen/Axiom	Agent	1.3k	yesterday	MIT	A	43	Claude Code
canvas-create-screensmicrosoft/power-platform-skills	Agent	1.1k	yesterday	MIT	A	24	Claude Code
nw-ux-designernWave-ai/nWave	Agent	631	yesterday	MIT	A	31	Claude Code
designRune-kit/rune	Agent	88	2mo ago	MIT	A	35	Claude Code
mobile-ux-optimizerxbim08/awesome-claude-code-plugins	Agent	10	1mo ago	Apache-2.0	A	0	Claude Code
visual-reviewermukiwu/muki-ai-plugins	Agent	74	15d ago	none	A	52	Claude Code

Monstrare: Agent for Claude Code