promptor

Nano Banana 2 Promptor Skill

A Claude Code plugin that auto-generates optimized Nano Banana 2 (Gemini 3.1) image generation prompts from natural conversation context. Specializes in ecommerce product photography, marketing visuals, social media graphics, and print-on-demand graphic design.

Installation

# Step 1: Add this marketplace
/plugin marketplace add thangphistudent/nano-banana-2-promptor-skill

# Step 2: Install the plugin
/plugin install promptor@nano-banana-2-promptor-skill

Usage

Just talk naturally about creating visuals. The skill auto-triggers when you mention creating, generating, or designing images for products, social media, marketing, or POD.

Examples:

"create a streetwear t-shirt design with skulls and flames for my Etsy shop"

"generate an instagram post image for my artisanal coffee brand"

"make a cute kawaii cat design for coffee mugs"

"I need a minimalist poster design with just the word BREATHE"

What It Does

1. Parses your context - Accepts any input format (free-form, structured, or minimal keywords)
2. Routes intelligently - POD designs get niche-specific design rules; commercial images get camera specs and platform optimization
3. Applies design intelligence - 10 validated niche modules, visual hierarchy rules, color systems, anti-pattern guards
4. Outputs structured JSON - Ready-to-paste prompt with full context analysis and metadata

Output Format

{
  "context_analysis": {
    "detected": { "subject, category, audience, purpose, style..." },
    "inferred": { "niche_module, color_system, composition, aspect_ratio..." },
    "design_philosophy": "mini art movement for POD categories"
  },
  "prompt_components": {
    "style, subject, setting, composition, typography, lighting, technical, constraints"
  },
  "assembled_prompt": "Ready-to-paste narrative prompt for Nano Banana 2",
  "metadata": { "model_target, aspect_ratio, resolution, design_rules_applied..." }
}

Supported Categories

Category	Examples
Product hero shots	Studio product photography
Lifestyle scenes	Products in real-world settings
Social media	Instagram, Facebook, Pinterest, TikTok
POD t-shirts	Streetwear, anime, vintage, minimalist
POD mugs	Wrap-around designs, novelty graphics
POD posters/wall art	Fine art prints, typography, abstract
POD accessories	Phone cases, tote bags, stickers
Marketing banners	Web banners, email headers, ad creatives
Infographics	Data visuals, bento grids
Logo/brand assets	Brand marks, icons

Design Intelligence

The skill encodes validated design rules from premium streetwear brand analysis:

• 10 niche modules: Streetwear Premium, Streetwear Hype, Anime/Japanese, Rock/Metal, Hip-Hop/Rap, Skate/Surf, Vintage/Retro, Luxury Gothic, Pop Culture, Minimalist
• Design principles: One Idea Principle, visual hierarchy, composition systems, anti-patterns
• POD-specific: Solid background optimization for AI removal, niche-appropriate color limits and negative space targets
• Nano Banana 2 optimized: Narrative prompts (not keywords), camera/lens specs, film stock shorthand

License

MIT