Synthia · Product ad shot design

Turn the method into an executable, Case-grounded workflow. The Skill is incomplete unless the final artifact can be traced to one named anchor Case.

Inputs

Ask only for missing inputs:

• Target duration, aspect ratio, model, and delivery platform.
• Opening frame, ending frame, reference image, source video, or depth/motion guide when available.
• Character, camera, action, continuity, sound, and special-operation requirements.
• Preferred anchor Case from references/cases.md, or permission to select one.

Required evidence gate