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Skillsgpt-image-skill

gpt-image-skill

Design & creation

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Updated 10-15 21:41

About this skill

GPT Image Skill

Generate or edit images with OpenAI's GPT Image models through the bundled gpt_image.py.

Resolve the skill directory

Before running any command, resolve the absolute directory containing this SKILL.md and refer to it as <skill-dir>. Never assume the current working directory is the skill directory. Keep user input and output paths relative to the user's working directory unless the user requests another location.

Requirements

  1. OPENAI_API_KEY in ~/.gpt-image.env or the shell environment.
  2. OPENAI_API_BASE (optional) for compatible endpoints such as Azure OpenAI or a proxy, in the same places.
  3. Python dependencies: python3 -m pip install -r "<skill-dir>/requirements.txt".
  4. Executable: <skill-dir>/gpt_image.py.

Run it

Generate:

python3 "<skill-dir>/gpt_image.py" --prompt "Modern minimalist logo for a tech startup" \
  --quality high --background transparent --output "logo.png"

Edit or combine references:

python3 "<skill-dir>/gpt_image.py" edit --prompt "Add a rainbow in the sky" \
  --input photo.png --output "photo-with-rainbow.png"

edit accepts several --input files to composite multiple references into one image.

Options live on the subcommands, so read them with generate --help or edit --help — the bare python3 "<skill-dir>/gpt_image.py" --help only lists the two modes. That is where the current --model, --size, --quality, --format, --background, and --n values are; every one has a working default, so pass only what the request actually constrains. Parent directories in the output path are created automatically, and an omitted --format is inferred from the .png, .jpg/.jpeg, or .webp extension, defaulting to PNG.

Report the saved path when the run completes.

When a run fails

Check that OPENAI_API_KEY is set and, for a custom endpoint, that OPENAI_API_BASE is correct; confirm input images exist and are readable, the output directory is writable, and the model name is valid. Do not report success unless an image was saved locally.