chatgpt-imagegen — agent skill
A standalone Python CLI that produces images via the user's ChatGPT subscription. It is a thin wrapper around ChatGPT's internal image_generation Responses-API tool, the same one the Codex CLI invokes. No API key, no network service, no extra config.
Prerequisites
The user must have run, once, ever:
npm i -g @openai/codex
codex login # opens browser to sign in to ChatGPT
That writes ~/.codex/auth.json, which this skill reads. If the
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