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Generate images and posters with Google Gemini. Use for: create image, generate visual, AI image generation, marketing poster.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
WhatsApp automation (Green API primary, WAHA fallback). Use for: send/receive messages, send voice/images/files, retrieve incoming messages (text, voice, images), transcribe voice messages. WAME = 'WhatsApp ME' = send me by WhatsApp.
Spin up an instant browser voice session (OpenAI Realtime gpt-realtime-2) to close a topic in a short conversation instead of working through documents. Generic & white-label - works for any process. Supports live data work (read/update files, JSON, run commands), and distill mode (no tools, ends with a structured deliverable). Has a generic canvas that can display images, markdown, code, html, json, video, audio - perfect for "let's go over X" flows where the agent shows you items one by one and you react in real time. Use when user says "let's close this in a voice call", "run a quick voice session about X", "תפעיל שיחה קולית", "let's go over the [images/leads/PRs/files/notes]", or when a task is faster as a 3-minute conversation than as a document edit.
The 10x10 method — generate breadth, then converge with human judgment. Use whenever a single AI output won't nail it and quality matters (design, copy, naming, posters, messaging, strategy options, code approaches), OR when the user says '10x10', 'ten by ten', 'give me 10 options', 'show me variations', or asks to refine/tighten an output instead of round-after-round corrections.
Never teach a principle without an immediate rep. When designing ANY teaching content — a workshop, a lesson plan, a deck, a course module, a webinar, an explainer video, an educational post — pair every theoretical unit with an embodiment the learner does right now. Use whenever building or reviewing teaching material, lesson plans, workshop flows, course outlines, or training content, OR when the user says 'teach-by-doing', 'add an exercise', 'make it hands-on', 'don't leave it abstract', 'תרגיל לכל עיקרון', 'הטמעה מיידית'.
Inject creative absurdity to break AI pattern-thinking before creative tasks. Randomly samples surreal micro-stories to spark unconventional thinking. Use before brainstorming, naming, writing, or any task needing fresh perspective.
Deploy static or interactive frontend content to GitHub Pages using gh CLI. Use when the user wants to publish, share, or make accessible any HTML/CSS/JS content - including demos, prototypes, visualizations, landing pages, portfolios, documentation, interactive tools, games, or any browser-based project. Activate whenever content needs to be publicly viewable via URL, not just when "website" is explicitly mentioned.
| name | nano-banana-poster |
| description | Generate images and posters with Google Gemini. Use for: create image, generate visual, AI image generation, marketing poster. |
| version | 1.0.0 |
| author | aviz85 |
| tags | ["image-generation","ai","gemini","poster","visual"] |
| setup | ./SETUP.md |
| setup_complete | false |
First time? If
setup_complete: falseabove, run./SETUP.mdfirst, then setsetup_complete: true.
Generate images using Google's Gemini model with optional reference assets.
cd ~/.claude/skills/nano-banana-image/scripts
# Basic generation (default 3:2 horizontal)
npx ts-node generate_poster.ts "A futuristic city at sunset"
# With aspect ratio (3:2 horizontal, 2:3 vertical, 16:9 wide, 9:16 tall)
npx ts-node generate_poster.ts --aspect 3:2 "A wide landscape poster"
npx ts-node generate_poster.ts -a 9:16 "A vertical story format"
# With reference assets
npx ts-node generate_poster.ts --assets "my-logo" "Create banner with logo"
# Combined: aspect ratio + assets
npx ts-node generate_poster.ts --aspect 16:9 --assets "logo" "YouTube thumbnail"
IMPORTANT: Always use the default 3:2 aspect ratio unless the user explicitly requests a different format (like "vertical", "story", "square", etc.). Do NOT change the aspect ratio on your own.
Control image dimensions with --aspect or -a:
| Ratio | Use Case |
|---|---|
3:2 | Horizontal (DEFAULT - use this unless user specifies otherwise) |
1:1 | Square - Instagram, profile pics |
2:3 | Vertical - Pinterest, posters |
16:9 | Wide - YouTube thumbnails, headers |
9:16 | Tall - Stories, reels, TikTok |
npx ts-node generate_poster.ts --aspect 3:2 "Your prompt"
npx ts-node generate_poster.ts -a 16:9 "Your prompt"
Use --assets with full paths to include reference images:
# Single asset
npx ts-node generate_poster.ts --assets "/full/path/to/image.jpg" "Your prompt"
# Multiple assets (comma-separated)
npx ts-node generate_poster.ts --assets "/path/a.jpg,/path/b.png" "Use both images"
Supported formats: .jpg, .jpeg, .png, .webp, .gif
IMPORTANT: Assets are NOT automatically included. You must explicitly pass them via --assets.
Save good results for future style reference:
npx ts-node generate_poster.ts --save-to-gallery "my-style" "prompt"
Creates assets/gallery/my-style.jpg + .meta.json with prompt info.
Create scripts/.env:
GEMINI_API_KEY=your_api_key_here
When generating images with Hebrew text:
ALWAYS include in prompt:
CRITICAL: All text must be in Hebrew.
CRITICAL: Layout direction is RTL (right-to-left).
Flow, reading order, and visual hierarchy must go from RIGHT to LEFT.
This ensures text renders correctly and visual flow matches Hebrew reading direction.
poster_0.jpg, poster_1.jpg, etc.--aspect (default: 3:2)