codex-imagelisted

# Codex Image Generation Drive Codex CLI's built-in `image_generation` tool non-interactively with `codex exec`. The point of this skill is throughput: each `codex exec` is an isolated session, so running several in the background gives near-true parallelism without touching an API key. ## Preflight ```bash codex --version # recent build codex login status # expect "Logged in using ChatGPT" codex features list | grep image_generation # the tool must be enabled ``` If not logged in, ask the user to run `codex login` once before proceeding. If `image_generation` is absent, the tool is disabled — surface that rather than retrying blindly. ## Single image ```bash codex exec \ --sandbox workspace-write \ --skip-git-repo-check \ --cd <work_dir> \ -o /tmp/codex-img.md \ "Use the image generation tool to create an image of '<prompt>'. Save it to ./<output>.png. Reply with only the file path on one line." ``` Resolution is chosen by the model from the prompt and is not reliably forceable, so this tool is a poor fit when an exact size is required. Expect on the order of a minute or two per image, with wide variance. ## Many images in parallel Fire one `codex exec` per image as separate **backgrounded Bash tool calls in the same turn**, each writing a distinct output filename. Because the jobs are independent sessions, the OpenAI side processes them concurrently; completion arrives via background-job notifi