oma-design

oma-design is a skill for Claude Code from first-fluke/oh-my-agent. It costs 58 tokens per session (3,192 once invoked), scanned A, original, MIT.

A guide for making and reviewing an app’s visual design system: its fonts, colors, spacing, layout, motion, and reusable components. It uses DESIGN.md as the written record of those decisions and includes accessibility checks based on WCAG 2.2.

In plain words
What is it for?
Use it to create or update DESIGN.md, choose visual styles, review interface quality, guide components, plan motion, or redesign a site or app.
Why use it?
It helps teams make design decisions consistently before or during implementation and spot visual, responsive, and accessibility problems.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: installed under .agents/ (shared by several agents).

Part of the oma plugin — 33 skills shipped together , and of oma

Good fit Use it to create or update DESIGN.md, choose visual styles, review interface quality, guide components, plan motion, or redesign a site or app.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/first-fluke/oh-my-agent/oma-design
About the project

oh-my-agent is a harness for checking whether coding agents actually completed their work by verifying tests, required artifacts, independent reviews, and recorded decisions. It is used across multiple agent runtimes to make workflow results auditable instead of relying on an agent's own report. The catalogue add-ons provide parts of its skills, agents, hooks, MCP integrations, instructions, and plugins.

first-fluke/oh-my-agent · 1,278 stars · on GitHub · firstfluke.com

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.

Any agent
npx skills add first-fluke/oh-my-agent --skill oma-design
Clone the repo
git clone --depth 1 https://github.com/first-fluke/oh-my-agent

Made for: Claude Code.

Or install oma, the plugin that ships this one along with the rest of its 33 skills.

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 oma-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/first-fluke/oh-my-agent/oma-design/github.svg)](https://agentmods.dev/skills/first-fluke/oh-my-agent/oma-design)
Your own site
<a href="https://agentmods.dev/skills/first-fluke/oh-my-agent/oma-design"><img src="https://agentmods.dev/badge/skills/first-fluke/oh-my-agent/oma-design/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 oma-design

Your own site · 80×15
<a href="https://agentmods.dev/skills/first-fluke/oh-my-agent/oma-design"><img src="https://agentmods.dev/badge/skills/first-fluke/oh-my-agent/oma-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,192 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00058 $0.03192
Opus 5 $0.00029 $0.01596
Sonnet 5 $0.00012 $0.00638
Haiku 4.5 $0.00006 $0.00319

Measured today against content hash 799f2175637d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

oma-design 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 today.

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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

.agents/skills/oma-design/SKILL.md · 273 lines

How it starts

The opening of the file, as written. The whole thing — 273 lines — stays where its author put it; the contents beside it link to each section on GitHub.

oma-design

Scheduling

Goal

Design specialist that defines, creates, and validates project design systems. DESIGN.md is the central artifact; all design work revolves around it.

Intent signature

  • User asks for design system, DESIGN.md, visual direction, typography, color, motion, accessibility, anti-pattern review, or component guidance.
  • User needs design decisions before frontend implementation or wants UI quality audited from a design perspective.

When to use

  • Defining or revising a project design system
  • Creating or auditing DESIGN.md
  • Selecting typography, color, layout, motion, or component direction
  • Reviewing UI work for responsive behavior, accessibility, and visual quality
  • Redesigning an existing site or app (preserve vs overhaul modes)
  • Using optional vendor inspiration from Stitch MCP or getdesign

When NOT to use

  • Implementing frontend components or application UI -> use oma-frontend
  • Planning product scope or task breakdown -> use oma-pm
  • Backend, database, infrastructure, or mobile implementation -> use the relevant specialist skill
  • General quality/security review outside visual, interaction, and accessibility concerns -> use oma-qa

Expected inputs

  • Product, brand, audience, platform, and UI/design problem
  • Existing .design-context.md, DESIGN.md, screenshots, references, or component constraints
  • Accessibility, responsive, language, and implementation constraints

Expected outputs

  • Design direction, revised DESIGN.md, audit findings, component guidance, or handoff notes
  • Responsive-first, WCAG-aware design recommendations
  • Optional vendor seed attribution when getdesign is used
outputs:
  - name: design-doc
    description: Updated DESIGN.md when the run materially advances the design system
    artifact: "DESIGN.md"
    required: false
  - name: design-context
    description: Refreshed .design-context.md snapshot when a discovery pass runs
    artifact: ".design-context.md"
    required: false

Read the full file on GitHub · 273 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. today Changed · -3 lines 799f2175637d
  2. 10d ago First seen · 276 lines · 58 tokens per session scan A 9bfbb957cbb1

Subscribe to this mod's changes

oma-design is a skill published in the GitHub repository first-fluke/oh-my-agent (1,278 stars, last pushed today), licensed MIT. It adds 58 tokens to every session and 3,192 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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