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imagegen · nexu-io — Claude Code skill: image generation via OpenAI

Skill for generating and editing images through OpenAI's Image API. Creates UI mockups, icons, illustrations, and social cards directly from prompts.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add nexu-io/open-design --skill imagegen -a claude-code
Open on GitHub

What imagegen does

imagegen connects your agent to OpenAI Image API for visual asset creation. It recognizes triggers like "generate image", "create image", "icon design", or "mockup" and invokes the skill automatically.

The skill runs on Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, and OpenCode. You'll need an active OpenAI account with API access—imagegen calls the Image API directly.

What it helps with

  • Generate a UI mockup from a text description
  • Create a set of icons for a project
  • Draw an illustration or visual reference
  • Design a social media card

Example prompts for the agent

  • Generate a mockup of a login button for a dashboard
  • Create an icon for the search feature in my app
  • Draw an illustration for an article about machine learning

How to install imagegen

1Skills CLI (Vercel)

npx skills add nexu-io/open-design --skill imagegen -a claude-code

2Manually: put the files in place

~/.claude/skills/imagegen/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/imagegen/

From the same set39

The whole set →
ui-ux-pro-max nexu-io A discovery catalog entry for the UI/UX Pro Max skill in OpenDesign. It registers design system triggers so agents recognize interface usability requests. Claude Code CX Codex Cursor +1 5,400installs frontend-design nexu-io Skill for building frontend interfaces with considered typography, color and layout — from landing pages to dashboards. Claude Code CX Codex Cursor +1 4,800installs threejs nexu-io Guides the agent in building browser 3D scenes, materials, interactive controls, and post-processing with Three.js. Claude Code CX Codex Cursor +1 3,400installs creative-director nexu-io This skill takes a creative concept from brief to presentation and checks it on three axes. Use it for campaign ideas and creative critique. Claude Code CX Codex Cursor +1 3,400installs design-brief nexu-io Parses an I-Lang design brief into a concrete spec with palette, typography, density, and constraints. Eliminates ambiguity from phrases like "make it professional." Claude Code CX Codex Cursor +1 3,400installs apple-hig nexu-io Integrates Apple Human Interface Guidelines for iOS, macOS, visionOS, watchOS, and tvOS into your coding agent during planning. Claude Code CX Codex Cursor +1 3,200installs hatch-pet nexu-io Creates, validates, and packages 8×9 animated pet spritesheets for Codex. Use it when turning visual references or concept prompts into importable digital pet companions. Claude Code CX Codex Cursor +1 3,100installs d3-visualization nexu-io This skill teaches the agent to create interactive D3.js visualizations. Use it to generate charts for dashboards, reports, and data-rich prototypes. Claude Code CX Codex Cursor +1 3,100installs

Other versions of imagegen

imagegen official openai This skill creates and edits raster images such as illustrations, textures, sprites, and mockups. Use it when the output should be a bitmap asset. Claude Code CX Codex Cursor +1 5,700installs

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Questions about imagegen

How do I install imagegen in Claude Code?

Run npx skills add nexu-io/open-design --skill imagegen -a claude-code, then verify the install at ~/.claude/skills/imagegen/SKILL.md.

What do I need to use imagegen?

An OpenAI API key with access to the Image API. imagegen calls OpenAI directly, so the key is required.

Which platforms support imagegen?

Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, and OpenCode. Installation command varies by platform.

Source text

SKILL.md · Apache-2.0 
---
name: imagegen
description: |
  Generate and edit images using OpenAI's Image API for project assets — UI mockups, icons, illustrations, social cards, and visual references.
triggers:
  - "generate image"
  - "create image"
  - "image gen"
  - "openai image"
  - "icon design"
  - "mockup"
od:
  mode: image
  category: image-generation
  upstream: "https://github.com/openai/skills"
---

# imagegen

> Curated from OpenAI's skills repository.

## What it does

Generate and edit images using OpenAI's Image API for project assets — UI mockups, icons, illustrations, social cards, and visual references.

## Source

- Upstream: https://github.com/openai/skills
- Category: `image-generation`

## How to use

This catalogue entry advertises the skill in OpenDesign so the agent
discovers it during planning. To run the full upstream workflow with
its original assets, scripts, and references, install the upstream
bundle into your active agent's skills directory:

```bash
# Inspect the upstream README for exact paths
open https://github.com/openai/skills
```

Then ask the agent to invoke this skill by name (`imagegen`) or with
one of the trigger phrases listed in this skill's frontmatter.

© nexu-io · Apache-2.0 · nexu-io/open-design

See also

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