Write Seedance Video Prompts

Create a filmable Seedance 2.0 prompt without leaking MiniMax H3 field names or timing grammar. This is a T8-authored companion to the MiniMax repository-bundled h3-prompt-writing Skill; use the upstream Skill itself when the target is H3.

Intake

Confirm only missing information:

• overall duration from 4 through 15 seconds and aspect ratio;
• generation intent: new generation, reference, edit, extension, track fill, or a combination;
• every supplied asset and its narrow role;
• recurring subject bindings, visible action, scene state, camera priority, sound, dialogue, and requested visible copy;
• whether the idea is one simple event or a multi-event sequence.

Do not treat a research video as a generation input. Do not fabricate references, text, dialogue, brands, or sound.

Build the prompt

1. Assign consecutive 图片N, 视频N, and 音频N labels by modality.
2. State one purpose for every declared asset. Bind ambiguous subjects as 角色A@图片1 or equivalent.
3. Write a cause-and-effect action chain. Include body/object part, direction, speed, force, inertia, contact, and visible consequence where relevant.
4. Prefer one primary camera behavior per shot. Separate genuinely conflicting moves with a cut.
5. Use one natural paragraph for a simple event. Use consecutive 镜头1, 镜头2, and so on for complex content.
6. Put dialogue in {...}, physical/designed sound in <...>, music in （...）, and requested visible copy in 【...】.
7. End with only the constraints that protect identity, geometry, medium, contact, copy, or continuity.

Read references/template.md for the task matrix, output skeleton, and final audit.

Hard rules

• Never add exact per-shot timestamps such as 0–3秒 or “at 3 seconds.” Overall duration is allowed.
• Never emit H3 fields, <Picture N>/<Video N>, [Shot N], (S1), timestamp alignment, or H3 retention syntax.
• For edit/extension tasks, name the target as 视频N, not merely “reference video.”
• For track fill, name two or three videos in playback order.
• Keep every explicit asset reference resolvable and every declared asset purposeful.
• Do not call a paid model, upload media, or import anything into ComfyUI unless the user separately requests that action.

Deliver

Return the task choice, asset-role map when assets exist, the final Seedance prompt, and short feasibility warnings. Keep the prompt itself clean enough to paste directly into Seedance 2.0.