Each format ships with a tuned prompt template and an enforced aspect ratio. You describe the visual; the extension applies the SEO sizing, brand palette, and Gemini routing.
// SKILL
AI IMAGE GENERATION
FOR SEO ASSETS
An AI SEO image generator is a tool that creates search-ready visual assets in specified formats and aspect ratios. The Image Gen extension connects Claude SEO to Google Gemini through the nanobanana MCP server to produce OG previews, heroes, product photos, infographics, schema images, and favicons.
By Daniel Agrici · Last updated: · Source: Google image SEO guidance
$
/seo image-gen og <description>
REQUIRES CLAUDE SEO INSTALLED IN CLAUDE CODE
// WHAT IT GENERATES
Which SEO image formats can you generate?
01
OG IMAGES
1200x630 social preview images with auto-applied brand palette. Drop straight into og:image meta tags. Renders correctly on Facebook, LinkedIn, Twitter Card.
02
BLOG HEROES
16:9 widescreen hero images. fetchpriority='high' and decoding='async' compatible. Sized for Above-the-Fold LCP without CLS.
03
PRODUCT PHOTOS
Square or 4:3 product photography. Brand-aware, consistent lighting and palette across a catalog. Schema-image ready.
04
INFOGRAPHICS
Data-driven infographics for blog posts. Specify the data points and Gemini renders the visualization.
05
SCHEMA IMAGES
Images sized and styled for structured data: Recipe, Article, Product, Event schema. Validates against current Google requirements.
06
BATCH PIPELINE
JSON manifest in, full library out. Generate 100+ OG images, full category hero sets, or schema-image catalogs in one run.
// USAGE
Which image generation commands are available?
Generation Commands
| Command | What it does |
|---|---|
/seo image-gen og <description> | Generate a 1200x630 OG/social preview image |
/seo image-gen hero <description> | Generate a 16:9 blog hero image |
/seo image-gen product <description> | Generate square or 4:3 product photography |
/seo image-gen infographic <description> | Generate a vertical infographic from data points |
/seo image-gen custom <description> --aspect 16:9 | Custom aspect ratio with full Creative Director pipeline |
/seo image-gen batch <manifest.json> | Generate every image in a JSON manifest in one run |
Installation
The Image Gen extension is not bundled with Claude SEO core. Install it explicitly when you want image generation wired into the skill catalog.
./extensions/banana/install.sh
The installer wires the nanobanana MCP server, prompts for a Google AI Studio API key, and writes the extension into your Claude Code configuration. The extension also works with the standalone /banana skill from the banana-claude project if you want image generation outside the SEO pack.
Manifest Format
Batch generation takes a JSON manifest. Each entry specifies a format and a description; sizes and prompts are applied automatically.
[
{"format": "og", "description": "dark theme tech minimal", "out": "blog/post-1-og.webp"},
{"format": "hero", "description": "developer at terminal", "out": "blog/post-1-hero.webp"},
{"format": "product", "description": "matte black headphones", "out": "products/sku-101.webp"}
]
// FAQ
What are frequently asked questions about image generation?
OG/social preview images (1200x630, the default for og:image), blog hero images (16:9 widescreen), product photography (square or 4:3 portrait), schema images (used in Product, Recipe, Article schema), infographics, banners (3:1 wide), Pinterest pins (2:3 vertical), thumbnails, and favicons. Each format ships with a tuned prompt template so output matches the SEO requirement.
Google Gemini (model varies by command and Gemini availability) via the nanobanana-mcp server. Gemini is fast (typically 5-15 seconds per image), supports brand-consistent prompts, and produces production-ready output. The extension wraps Gemini with SEO-tuned prompt templates and aspect-ratio enforcement.
Gemini has a free tier sufficient for occasional use. Heavy usage requires a paid Google AI Studio key. The extension surfaces estimated cost where possible. You provide your own API key at install time; Claude SEO does not proxy or store keys.
Yes. Run
/seo image-gen batch <manifest-file> with a JSON manifest listing images to generate, each with a description and format. Useful for: generating OG images across 100+ blog posts in one run; producing a full set of category hero images for an e-commerce category tree; building a library of schema images for a product catalog.Run
extensions/banana/install.sh from the Claude SEO repo. The installer wires the nanobanana MCP server and sets up the Gemini API key. You will need a Google AI Studio API key (free at aistudio.google.com). The extension also works with the standalone /banana skill from the banana-claude project.// FROM THE BLOG
RELATED GUIDE
GENERATE YOUR FIRST OG
WITH BRAND-AWARE PROMPTS.
$
git clone --depth 1 https://github.com/AgriciDaniel/claude-seo.git && bash claude-seo/install.sh