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nano-banana-pro

Generate and edit images using Google's Nano Banana Pro (Gemini 3 Pro Image) API. Use when the user asks to generate, create, edit, modify, change, alter, or update images. Also use when user references an existing image file and asks to modify it in any way (e.g., "modify this image", "change the background", "replace X with Y"). Supports both text-to-image generation and image-to-image editing with configurable resolution (1K default, 2K, or 4K for high resolution). DO NOT read the image file first - use this skill directly with the --input-image parameter.

90

2.82x
Quality

86%

Does it follow best practices?

Impact

96%

2.82x

Average score across 3 eval scenarios

SecuritybySnyk

Risky

Do not use without reviewing

SKILL.md
Quality
Evals
Security

Evaluation results

100%

84%

Batch Image Generation Script for Design Team

Resolution mapping and filename format

Criteria
Without context
With context

Absolute script path

0%

100%

uv run used

0%

100%

Standard quality → 1K

0%

100%

Medium quality → 2K

0%

100%

Ultra/print quality → 4K

0%

100%

Uppercase K in resolutions

0%

100%

Timestamp filename format

0%

100%

Descriptive filename suffix

0%

100%

No cd to skill dir

100%

100%

Prompts passed as-is

60%

100%

90%

35%

Photo Retouching Automation Script

Image editing with input-image parameter

Criteria
Without context
With context

--input-image used

0%

100%

No pre-read of input

100%

100%

Editing instructions in prompt

100%

100%

No post-read of output

100%

100%

Output filenames differ from input

100%

100%

Absolute script path

0%

100%

uv run used

0%

100%

Timestamp filename pattern

0%

0%

All three photos edited

100%

100%

No cd to skill directory

100%

100%

100%

69%

Custom API Key Integration for Creative Studio

API key argument and prompt fidelity

Criteria
Without context
With context

--api-key argument used

0%

100%

Key not set as env var

80%

100%

Prompt passed unchanged

100%

100%

High resolution → 4K

0%

100%

Uppercase K in resolution

0%

100%

Absolute script path

0%

100%

uv run used

0%

100%

Timestamp filename format

0%

100%

example_call.sh uses --api-key

60%

100%

Prompt preserved in example

100%

100%

Repository
intellectronica/agent-skills
Evaluated
Agent
Claude Code
Model
Claude Sonnet 4.6

Table of Contents

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