generate-image

generate-image is a command for Gemini CLI from mfmezger/ai_agent_dotfiles. It costs 49 tokens per session (1,289 once invoked), scanned A, original, MIT.

A command for generating or transforming images with Google’s Gemini image-generation model through Vertex AI, Google’s cloud AI platform.

In plain words
What is it for?
Use it for text-to-image and image-to-image work when the required Google Cloud credentials and project settings are available.
Why use it?
It provides a documented way to create images from descriptions or modify an existing image.

Command for Gemini CLI

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/mfmezger/ai_agent_dotfiles/generate-image
Clone the repo
git clone --depth 1 https://github.com/mfmezger/ai_agent_dotfiles

Made for: Gemini CLI.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for generate-image

README.md
[![agentmods](https://agentmods.dev/badge/commands/mfmezger/ai_agent_dotfiles/generate-image.svg)](https://agentmods.dev/commands/mfmezger/ai_agent_dotfiles/generate-image)
Your own site
<a href="https://agentmods.dev/commands/mfmezger/ai_agent_dotfiles/generate-image"><img src="https://agentmods.dev/badge/commands/mfmezger/ai_agent_dotfiles/generate-image.svg" alt="Measured on agentmods" height="20"></a>
Per session 49 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,289 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00049 $0.01289
Opus 5 $0.00024 $0.00645
Sonnet 5 $0.00010 $0.00258
Haiku 4.5 $0.00005 $0.00129

Measured 5d ago against content hash d0c586d2aa5b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

generate-image scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

gemini/.gemini/commands/generate-image.md · 112 lines

How it starts

The opening of the file, as written. The whole thing — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Image Generation with Gemini

Generate images using Google's Gemini image generation model via Vertex AI. Supports both text-to-image and image-to-image generation.

Prerequisites

Environment variables (can be in .env file in working directory):

  • GOOGLE_APPLICATION_CREDENTIALS - Path to service account JSON file
  • GOOGLE_CLOUD_PROJECT - GCP project ID

Usage

Run the generation script using uvx:

# Text-to-image generation
uvx --with google-genai --with python-dotenv python ~/.claude/skills/generate-image/scripts/generate.py "PROMPT"

# Image-to-image generation (with input image)
uvx --with google-genai --with python-dotenv python ~/.claude/skills/generate-image/scripts/generate.py "PROMPT" -i /path/to/input/image.png

Options

Flag Description Default
-i, --input PATH Input image for image-to-image generation None
-o, --output PATH Where to save the image Temp file
--aspect-ratio "16:9", "1:1", "9:16" "16:9"
--size "1K" or "2K" "2K"

Examples

# Basic text-to-image - saves to temp file, prints path
uvx --with google-genai --with python-dotenv python ~/.claude/skills/generate-image/scripts/generate.py "A serene mountain landscape at sunset"

# Save to specific location
uvx --with google-genai --with python-dotenv python ~/.claude/skills/generate-image/scripts/generate.py "A cute robot" -o ./robot.png

# Square format
uvx --with google-genai --with python-dotenv python ~/.claude/skills/generate-image/scripts/generate.py "Abstract art" --aspect-ratio 1:1

# High resolution
uvx --with google-genai --with python-dotenv python ~/.claude/skills/generate-image/scripts/generate.py "Detailed cityscape" --size 2K

# Image-to-image: Transform an existing image
uvx --with google-genai --with python-dotenv python ~/.claude/skills/generate-image/scripts/generate.py "Make this scene nighttime with stars" -i ./daytime_photo.jpg

# Image-to-image: Add elements to an image
uvx --with google-genai --with python-dotenv python ~/.claude/skills/generate-image/scripts/generate.py "Add a rainbow in the sky" -i ./landscape.png -o ./landscape_with_rainbow.png

# Image-to-image: Style transfer
uvx --with google-genai --with python-dotenv python ~/.claude/skills/generate-image/scripts/generate.py "Convert to watercolor painting style" -i ./photo.jpg

Read the full file on GitHub · 112 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 112 lines · 49 tokens per session scan A d0c586d2aa5b

Subscribe to this mod's changes

generate-image is a command published in the GitHub repository mfmezger/ai_agent_dotfiles (5 stars, last pushed 1mo ago), licensed MIT. It adds 49 tokens to every session and 1,289 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.