Nano Banana Prompting

Interactive prompt crafting for Nano Banana Pro image generation. This skill guides users through a structured process to create effective prompts by clarifying intent and applying proven techniques.

Workflow

Step 1: Gather Reference Materials

Before asking questions, check if the user has provided:

• Reference images - Photos to use for character consistency, style, or composition

• Existing prompts - Previous attempts to improve upon

• Visual references - Screenshots or examples of desired output

If reference materials are available, this affects which techniques apply (e.g., Reference Role Assignment, Character Consistency).

Step 2: Clarify Intent with Questions

Use the AskUserQuestion tool to understand the user's goal. Ask questions in batches of 2-4, focusing on the most important aspects first.

Core Questions (always ask)

Output Type - What kind of image?

• Photo/realistic

• Illustration/artistic

• Infographic/educational

• Product shot/commercial

• UI mockup/design

Subject - Who or what is the main focus?

• Person (with or without reference)

• Object/product

• Scene/environment

• Concept/abstract

Technique-Specific Questions (based on answers)

If Photo/Realistic:

• What era or camera style? (modern DSLR, 1990s film, 2000s digital)

• Specific lighting? (golden hour, studio, flash)

• Aspect ratio needed? (16:9, 9:16, 1:1)

If Reference Images Provided:

• What role for each image? (pose, style, color palette, background)

• Should character identity be preserved?

• Combine images or use as style reference?

If Text Needed:

• What text should appear?

• What font style? (serif, sans-serif, handwritten)

• Where should text be placed?

If Educational/Infographic:

• What concept to explain?

• Target audience level?

• Should it include labels, arrows, flow?

Step 3: Determine Prompt Style

Based on user responses, select the appropriate prompt format from references/guide.md :

User Need Recommended Style

Simple, quick generation Narrative Prompt (Technique 1)

Precise control over details Structured Prompt (Technique 2)

Era-specific aesthetic Vibe Library + Photography Terms (Techniques 3-4)

Magazine/poster with text Physical Object Framing (Technique 5)

Conceptual/interpretive Perspective Framing (Technique 6)

Diagram/infographic Educational Imagery (Technique 7)

Editing existing image Image Transformation (Technique 8)

Multiple views/panels Multi-Panel Output (Technique 9)

Multiple reference images Reference Role Assignment (Technique 12)

Step 4: Generate the Prompt

Construct the prompt by:

• Loading references/guide.md to access technique details

• Applying relevant techniques based on Step 3 selection

• Cross-checking against guide examples for proper formatting

• Including negative prompts if needed (Technique 10)

• Specifying aspect ratio/resolution if required (Technique 11)

Prompt Construction Checklist

• Subject clearly defined

• Action/pose specified (if applicable)

• Location/background described

• Style/aesthetic anchored

• Technical specs included (aspect ratio, lighting, camera)

• Text integration specified (if needed)

• Negative prompts added (if needed)

• Reference image roles assigned (if using references)

Step 5: Present and Iterate

Present the generated prompt to the user with:

• The prompt - Ready to use

• Technique explanation - Why this structure was chosen

• Variation suggestions - Alternative approaches to try

Offer to refine based on feedback.

Step 6: Generate the Image

After the user is satisfied with the prompt, recommend using the nano-banana skill to generate the actual image. Inform the user:

"Your prompt is ready! Would you like me to generate the image now? I can use the nano-banana skill to create it."

If the user agrees, invoke the nano-banana skill with the crafted prompt.

Quick Reference: Technique Selection

User wants... → Use Technique... ───────────────────────────────────────────────────── Simple description → 1 (Narrative) Detailed control → 2 (Structured YAML/JSON) Specific era look → 3 (Vibe Library) Professional photo style → 4 (Photography Terms) Magazine/poster → 5 (Physical Object Framing) "How X sees Y" → 6 (Perspective Framing) Educational diagram → 7 (Educational Imagery) Edit existing image → 8 (Image Transformation) Multiple panels in one → 9 (Multi-Panel) Exclude something → 10 (Negative Prompts) Specific dimensions → 11 (Aspect Ratio) Multiple reference images → 12 (Reference Roles) Same character across images → 13 (Character Consistency) Merge multiple images → 14 (Image Blending) Enhance/restore image → 15 (Upscaling) Translate text in image → 16 (Translation)

Resources

references/

• guide.md
• Complete prompting guide with 16 techniques, examples, and patterns. Load this file when constructing prompts to access specific technique details and examples.