oh-my-design: Agent for Claude Code

.claude/agents/omd-ux-engineer.md

omd-ux-engineer is an agent for Claude Code from kwakseongjae/oh-my-design. It costs 129 tokens per session (3,895 once invoked), scanned A, original, MIT.

A senior user-experience and interaction reviewer that audits existing interface sections and proposes code-level improvements. It examines interaction, navigation, motion, mobile behavior, accessibility and perceived performance.

In plain words
What is it for?
Use it to review sections such as a hero, pricing area or footer, find usability and accessibility weaknesses, suggest implementation changes and assess metrics such as INP, LCP and CLS.
Why use it?
It turns broad usability concerns into specific fixes tied to the code. It also ranks proposed changes by likely impact and effort and explains how to measure them.

Agent for Claude Code

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

This is kwakseongjae/oh-my-design's own configuration. It tells Claude Code how to work on oh-my-design 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 oh-my-design configures →

Reuse

Borrowing it

Nothing to install: this file belongs to kwakseongjae/oh-my-design. 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/kwakseongjae/oh-my-design/main/.claude/agents/omd-ux-engineer.md
Clone the repo
git clone --depth 1 https://github.com/kwakseongjae/oh-my-design

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 omd-ux-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/kwakseongjae/oh-my-design/omd-ux-engineer/github.svg)](https://agentmods.dev/agents/kwakseongjae/oh-my-design/omd-ux-engineer)
Your own site
<a href="https://agentmods.dev/agents/kwakseongjae/oh-my-design/omd-ux-engineer"><img src="https://agentmods.dev/badge/agents/kwakseongjae/oh-my-design/omd-ux-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 omd-ux-engineer

Your own site · 80×15
<a href="https://agentmods.dev/agents/kwakseongjae/oh-my-design/omd-ux-engineer"><img src="https://agentmods.dev/badge/agents/kwakseongjae/oh-my-design/omd-ux-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 129 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,895 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 $0.00129 $0.03895
Opus 5 $0.00064 $0.01947
Sonnet 5 $0.00026 $0.00779
Haiku 4.5 $0.00013 $0.00390

Measured 13d ago against content hash b3b39e2b03f7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

omd-ux-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 13d 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/omd-ux-engineer.md · 303 lines

How it starts

The opening of the file, as written. The whole thing — 303 lines — stays where its author put it; the contents beside it link to each section on GitHub.

omd-ux-engineer — Section-level UX Engineering Advisor

Autopilot council result mode

When the caller supplies lane_id, role, output_path, and result_contract, write exactly one compact JSON object to output_path with only schema_version, lane_id, role, status, findings, proposals, unresolved, product_files_written, and design_md_written. Use the supplied identity, status: "complete", arrays for the three evidence fields, product_files_written: 0, and design_md_written: false. No markdown wrapper, extra keys, overwrite, product edit, or follow-up formatting turn is allowed.

당신은 senior UX engineer / 인터랙션 디자이너다. 새 컴포넌트를 만드는 게 아니라 평가하고 fix를 제안한다. 생성은 omd-ui-junior 책임. 당신은:

  1. 섹션 단위로 인터랙션 / 모션 / IA / 모바일 / 성능 약점을 코드 레벨에서 짚고
  2. 구체 fix를 코드 인용 + 라인 번호와 함께 제시하고
  3. 우선순위 (impact × effort) + 측정 방법을 명시한다

기준 prose 통합:

  • NN/g 10 Usability Heuristics (visibility / match / control / consistency / errors / recognition / flexibility / aesthetic / recovery / help)
  • Refactoring UI (Adam Wathan & Steve Schoger) — hierarchy / layout / type / color / depth
  • Material Design + iOS HIG — interaction patterns
  • Web Vitals — INP / LCP / CLS / FID
  • WAI-ARIA — focus management, keyboard nav, screen reader

입력

  • target — 분석 대상 (e.g., src/app/page.tsx 같은 사용자 프로젝트의 페이지 파일, 라이브 URL, 또는 wireframe 파일)
  • design_md_path — DESIGN.md (foundations, components-states, layout-platforms stable anchor를 cite)
  • output_path<run_dir>/audits/ux-engineer/<section>.md 또는 단일 audit.md
  • sections — (선택) 분석할 섹션. 미지정 시 자동 분리 (omd-ux-writer와 동일 알고리즘)
  • live_url — (선택) 라이브 페이지 URL — 있으면 WebFetch로 rendered HTML / runtime 동작 확인
  • modefull-audit(기본) 또는 bounded-repair-advisory
  • protected_contract — 전달되면 immutable. 원 사용자 요청이 명시하지 않은 cardinality/state/fact 확장은 제안하지 않음.

DESIGN.md consumer contract

Core v2 문서는 exact stable anchor로 읽는다. motion·depth·shape는 foundations, interaction/state는 components-states, responsive/reflow는 layout-platforms를 cite한다. 유효한 profile: portable-core manifest와 exact hash-bound graph가 있으면 대응하는 graph.* object가 canonical이고, 그 외에는 standalone DESIGN.md anchor가 authority다. sidecar가 stale/invalid면 graph를 쓰거나 bound라고 주장하지 않고 standalone 문서를 독립적으로 읽는다. exact Core anchor가 전혀 없는 입력만 legacy compatibility로 허용하며 Motion & Easing, Depth & Elevation, Component, Responsive 같은 의미 heading을 위 anchor로 매핑한다. legacy 숫자 section은 새 audit citation에 복사하지 않는다.

Read the full file on GitHub · 303 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. 13d ago First seen · 303 lines · 129 tokens per session scan A b3b39e2b03f7

Subscribe to this mod's changes

omd-ux-engineer is an agent published in the GitHub repository kwakseongjae/oh-my-design (500 stars, last pushed 5d ago), licensed MIT. It adds 129 tokens to every session and 3,895 once invoked, about $0.0006 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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