H3 Prompt Writing Workflow 1. Identify the input mode: T2VA, I2VA, FL2VA, L2VA, or full-reference Ref2VA. 2. For base text/keyframe modes, read and follow its final prompt structure. 3. For full-reference mode, read and follow its six-section rewrite format. 4. Preserve the exact field names, section order, labels, and timing notation from the selected guide. Base Modes - T2VA: build the full audiovisual timeline from text. - I2VA: start from the first frame and develop forward from it. - FL2VA: describe the continuous path between the first and last frames. - L2VA: infer a plausible opening…