generate-image

generate-image is a skill for Claude Code, Codex from FradSer/dotclaude. It costs 67 tokens per session (1,957 once invoked), scanned A, original, MIT.

An image tool that turns text prompts, and optionally reference images, into new or edited images through Gemini or an OpenAI-compatible service.

In plain words
What is it for?
Use it to generate illustrations, icons, logos, posters, or concept art, or to edit supplied images with a selected image backend.
Why use it?
It provides a defined way to create visual assets or change existing images from coding-agent tasks.

Skill for Claude CodeCodex

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the generate-image plugin — 1 skill shipped together

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 skills/fradser/dotclaude/generate-image
Any agent
npx skills add FradSer/dotclaude --skill generate-image
Clone the repo
git clone --depth 1 https://github.com/FradSer/dotclaude

Made for: Claude Code, Codex.

Or install generate-image, the plugin that ships this one along with the rest of its 1 skill.

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/skills/fradser/dotclaude/generate-image.svg)](https://agentmods.dev/skills/fradser/dotclaude/generate-image)
Your own site
<a href="https://agentmods.dev/skills/fradser/dotclaude/generate-image"><img src="https://agentmods.dev/badge/skills/fradser/dotclaude/generate-image.svg" alt="Measured on agentmods" height="20"></a>
Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,957 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 $0.00067 $0.01957
Opus 5 $0.00034 $0.00979
Sonnet 5 $0.00013 $0.00391
Haiku 4.5 $0.00007 $0.00196

Measured 4d ago against content hash 9fd4aae59b8f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 4d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/generate_image.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

generate-image/skills/generate-image/SKILL.md · 121 lines

How it starts

The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Generate Image (gemini / openai backends)

Turn a text prompt — optionally with reference images — into one or more images via one of two explicit backends. --backend has no default — always pick one (gemini or openai), or set IMAGE_BACKEND. The script does the API call, file saving, and configuration; your job is to pick the backend, craft a strong prompt, and wire up the flags.

  • gemini — Google's native Gemini API via google-genai. Full feature set: --aspect-ratio, --size tiers (1K/2K/4K), and multi-image edit/compose (-i a.png -i b.png). Use GEMINI_API_KEY / GEMINI_IMAGE_MODEL.
  • openai — any OpenAI-compatible image endpoint (OpenAI official, DashScope, new-api gateways, ...). Use OPENAI_API_KEY / OPENAI_BASE_URL / OPENAI_IMAGE_MODEL. Supports gpt-image-2, dall-e-3, etc.

Prerequisites

  • uv available (the script is a self-contained uv run script; deps install on first run).

  • The API key for the chosen backend. The script resolves it progressively, so any one works:

    • export GEMINI_API_KEY=... (gemini backend) or export OPENAI_API_KEY=... (openai backend), or
    • a .env file (checked in order: $PWD/.env, then ${CLAUDE_PLUGIN_ROOT}/.env), or
    • --api-key ... on the command line.

    CRITICAL -- Never paste the API key into chat or commit a .env. If the key is missing, the script prints exactly how to set it — relay that to the user rather than guessing.

Workflow

1. Clarify intent (only if genuinely ambiguous)

A one-line request like "draw a fox in a spacesuit" needs no questions — just generate. Ask (via AskUserQuestion) only when a choice would materially change the result and you cannot reasonably default it, e.g. aspect ratio for a "banner vs. avatar", or whether an attached image should be edited vs. used as style reference.

2. Craft the prompt

Read references/prompting.md before writing a non-trivial prompt. In short: describe subject, composition, lighting, style, and mood in concrete terms; put any literal text to render in quotes; and for edits, state what to change AND what to keep. A vivid one-paragraph prompt beats a terse phrase.

Read the full file on GitHub · 121 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 121 lines · 0 tokens per session scan A 9fd4aae59b8f

Subscribe to this mod's changes

generate-image is a skill published in the GitHub repository FradSer/dotclaude (588 stars, last pushed 22d ago), licensed MIT. It adds 67 tokens to every session and 1,957 once invoked, about $0.0003 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 2026-08-30.

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