Image Gen

Article image skill. Not the diagram renderer (that is imagen-diagrams).

When to fire

Use this skill when the user wants a cover image, in-article illustration, or visual assets for an article.

Do not use this skill to render Mermaid or PlantUML. Send those to imagen-diagrams.

Image-engine hint and backend (auto)

Use --engine-hint imagen, --engine-hint grok, or --engine-hint codex when a caller has a preferred image engine. The hint chooses a real execution path, not a guessed subcommand.