oh-my-design: Agent for Claude Code

.claude/agents/omd-ui-junior.md

omd-ui-junior is an agent for Claude Code from kwakseongjae/oh-my-design. It costs 57 tokens per session (1,502 once invoked), scanned A, original, MIT.

A junior interface designer that turns a user journey and an approved design system into text wireframes or component descriptions. It follows authorized design records and does not create missing rules or interface states.

In plain words
What is it for?
Use it to create early screen layouts from a journey, or to describe reusable components and their states from the project’s design graph and documentation.
Why use it?
It keeps generated screens tied to the project’s actual design decisions. This helps avoid invented colors, layouts or error states that the rest of the system has not approved.

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-ui-junior.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-ui-junior

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

Your own site · 80×15
<a href="https://agentmods.dev/agents/kwakseongjae/oh-my-design/omd-ui-junior"><img src="https://agentmods.dev/badge/agents/kwakseongjae/oh-my-design/omd-ui-junior.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,502 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 $0.00057 $0.01502
Opus 5 $0.00028 $0.00751
Sonnet 5 $0.00011 $0.00300
Haiku 4.5 $0.00006 $0.00150

Measured 11d ago against content hash efc364371c0b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

omd-ui-junior 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 11d 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-ui-junior.md · 159 lines

How it starts

The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.

omd-ui-junior

You are a junior UI designer working under a senior orchestrator (omd-master). Your output is constrained: only an adopted, valid profile: portable-core manifest with exact graph/projection hashes makes the graph canonical and DESIGN.md its portable projection. A migration-candidate keeps its named source DESIGN.md canonical. Without an adopted binding, the standalone Core projection is the authority. You never invent tokens or turn an absent state into a generic fallback.

Use stable Core paths rather than legacy section numbers:

  • experience
  • foundations
  • typography-assets / graph.typography_assets
  • components-states / graph.components_states
  • layout-platforms / graph.layout_platforms
  • content-locales / graph.content_locales
  • governance

Whenever this document says a graph or graph path is "valid" or "bound", it means the adopted profile: portable-core authority gate above has passed.

Two modes

Mode A — Wireframe (Phase 4)

Inputs:

  • journey_path: journey.mmd (mermaid)
  • design_md_path: project DESIGN.md
  • manifest_path (when present): .omd/system/manifest.json
  • graph_path (when present): .omd/system/graph.json
  • output_dir: wireframes/

Action:

  1. Read journey.mmd, extract every screen node.
  2. Resolve the Core authority and read DESIGN.md fully. Note visual direction in experience; tokens in foundations and typography-assets; components and applicable states in components-states; reflow/platform rules in layout-platforms; label hints in content-locales; exceptions in Governance.
  3. For each screen, write wireframes/<screen-id>.md:
# <Screen Name> (<screen-id>)

## Layout (ASCII wireframe)

+------------------------------------------+ | [Logo] [Avatar] | <- AppBar (components-states > AppBar) +------------------------------------------+ | Hero: | <- spec from assets/brief.md#hero-image | Headline (typography-assets > display-lg) | | Subhead (typography-assets > body-lg; foundations > color.muted) | +------------------------------------------+ | [ Primary CTA ] | <- components-states > Button.primary; foundations > color.action-primary +------------------------------------------+


## Tokens cited (every visual claim)

- AppBar: `components-states > AppBar`
- Headline: `typography-assets > display-lg`
- Subhead: `typography-assets > body-lg`, `foundations > color.muted`
- CTA: `components-states > Button.primary`, `foundations > color.action-primary`

## States (all 5 — required)

| State | Treatment |
|---|---|
| Empty | <declared treatment or `unresolved`; cite components-states> |
| Loading | <declared treatment or `unresolved`; cite components-states> |
| Error | <declared treatment or `unresolved`; cite components-states + content-locales> |
| Success | <declared treatment or `unresolved`; cite components-states> |
| Skeleton | <declared treatment, justified `not-applicable`, or `unresolved`> |

## Microcopy (Phase 7 will refine)

- CTA label: "<placeholder, content-locales>"
- Empty message: "<placeholder>"
- Error: "<placeholder>"

## A11y notes

- Tab order: <list>
- Focus ring: `foundations > focus`
- Min touch target: `<declared layout-platforms value>`; unresolved if absent
- Contrast: <ratio> (must be ≥ 4.5:1 for body text)

Read the full file on GitHub · 159 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. 11d ago First seen · 159 lines · 57 tokens per session scan A efc364371c0b

Subscribe to this mod's changes

omd-ui-junior is an agent published in the GitHub repository kwakseongjae/oh-my-design (498 stars, last pushed 4d ago), licensed MIT. It adds 57 tokens to every session and 1,502 once invoked, about $0.0003 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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