image-gen skill v1.0

Codex/Claude skill for generating images through Codex's built-in image_gen tool by spawning a fresh codex exec session.

The main workflow is documented in SKILL.md. The short version:

• Uses ChatGPT OAuth via Codex, not an OPENAI_API_KEY fallback.
• Spawns an ephemeral Codex session to keep image prompts isolated from the caller's long-running context.
• Verifies generated PNGs from ~/.codex/generated_images/<session_id>/ig_*.png instead of trusting model-reported paths.
• Uses a stable transparent PNG contract: generate on solid #FF00FF or #00FF00, then run scripts/chroma_key_transparent.py.
• Includes experimental batch and continuation scripts under scripts/.

Install

From Codex skill installer workflows, install this repository as a root skill:

python3 ~/.codex/skills/.system/skill-installer/scripts/install-skill-from-github.py \
  --repo aldegad/image-gen \
  --path .

For local umbrella installs, keep this repository as the public upstream and symlink/copy it through your own agent-skill installer.

Requirements

which codex
codex login status
codex features list | grep image_generation

Transparent PNG post-processing requires Python Pillow (PIL). ImageMagick (magick) remains useful for optional inspection.

License

MIT