Detect faces in an image and return 90+ keypoints per face.

Use this when:
- You want raw landmark coordinates for downstream alignment / animation.
- You need to count or locate faces in a photo.

Apply beauty effects (smoothing / whitening / slimming / eye enlarging).

Age or de-age one or more faces using explicit target age information.

Swap perceived facial gender characteristics in a portrait.

Replace the face in target_image_url with the face from source_image_url.

Convert a portrait to an animated / cartoon style.

Decide whether a face image is from a live person versus a printed / screen photo.

Return a concise usage guide for the Face Transform tools.

Use this when:
- The model needs a refresher on which face tool fits the user's intent.
- Onboarding a new conversation that hasn't seen the prompts yet.