codex-image
Installation
SKILL.md
codex-image
Generate or edit images via OpenAI's Responses API by reusing the user's
ChatGPT subscription — no OPENAI_API_KEY needed. The skill speaks to
/v1/responses with the image_generation hosted tool while presenting an
HTTP fingerprint indistinguishable from the official codex CLI.
When to invoke
Invoke this skill when the user asks to generate or edit an image and:
- They explicitly mention
codex-image/ "codex image" / "use my ChatGPT quota", or - They have an active
codexlogin (~/.codex/auth.jsonexists) and have not asked for an API-key based generator, or - They explicitly want to avoid paying for
OPENAI_API_KEYusage.
Do not use this skill when: