/seedance-2-5-skill

name: seedance-2-5-skill
description: >-
  Plan and generate controllable Seedance video using Seedream 5.0 Pro
  storyboards and Seedance 2.0 today, with a Seedance 2.5 route when available.
  Use for consistent people, products, objects, food, or scenes; storyboard-to-
  video; reference-to-video; first-and-last-frame image-to-video; extensions;
  and Atlas Cloud media generation.

Seedance 2.5 Skill

Language route

• For an English request, follow this file and the `*.md` references.
• For a Chinese request, read [the Chinese workflow](references/workflow.zh-CN.md)

first, then use the matching `*.zh-CN.md` reference files.

• Keep model IDs, JSON keys, commands, media placeholders, and native-audio

symbols exactly as code. Do not translate them.

Do not force every request through one image-grid pipeline. Choose the video route first, then enable only the preparation modules the job needs.

1. Choose the creative route

| Need | Route | Inputs | Result | |---|---|---|---| | One short, simple scene | T2V | Text prompt | One self-contained shot | | A multi-shot sequence with readable panels | R2V storyboard | One complete storyboard image | One request turns panel order into a continuous video | | A clip controlled by people, product, scene, or style assets | R2V asset references | A small role-specific asset pack | One clip built from those references | | A shot with an exact beginning and ending | I2V shot pair | Start and end keyframes | One independently reviewable shot | | An uninterrupted action exceeding the supported duration | Extend / chain | Previous generated tail frame and next prompt | Continuation of the same shot | | One continuous piece carrying several events | Staged whole-short | Text plus optional references | One request covering ordered stages, each landing on a stated end state | | A scoped change to an existing video | Editing | Source video plus target references | The source with only the named region or element changed | | A bridge between two finished clips | Seamless transition | Two videos | Generated bridge content between them | | Motion, blocking, and camera taken from a 3D preview | Blockout reference | Coarse or fine blockout video plus look references | Final render following the blockout's timing and staging |

Use Seedance 2.0 as the executable default. Offer a Seedance 2.5 whole-short route only when the selected provider exposes that model and its actual limits.

The last four routes depend on capabilities that differ per model and per provider. Verify availability before offering one; see [capabilities](references/capabilities.md) for the 2.0/2.5 comparison and for which published capabilities are platform features rather than API parameters.

Storyboard or individual keyframes

• Use the **whole storyboard image in one R2V request** by default whenever

individual panels remain visually readable. Do not crop it first. Seedance can interpret the ordered panels as one continuous multi-shot video.

• Use **I2V shot pairs** only when independent reshoots or precise start/end

states matter more than the transition quality of one R2V generation.

• Do not upload every storyboard cell as a default R2V asset pack. Use several

R2V images only when each has a distinct role, such as subject, product, setting, style, or motion reference.

2. Enable only needed preparation

Subject brief

Use this only for a person, product, prop, hand, vehicle, or scene that must recur. Record 3–5 invariants: silhouette or proportion, signature material or wardrobe, key colour, and any must-preserve marking. Skip it for a one-off atmosphere shot.

For a recurring person, make a clean face close-up and a separate full-body reference. Do not use a front/side/back composite as the identity input; it can be interpreted as multiple people. Multi-angle product references remain useful when the object itself must be shown from several sides.

Keyframes

Create a start keyframe for every I2V shot. Add an end keyframe only when the shot must land on a specific action, composition, product pose, or hand position. Use one clean scene per keyframe.

Storyboard

Use an existing storyboard directly as the R2V reference. Seedance normally understands panel order and does not require panel numbers, dividers, arrows, or notes to be removed in advance. Make a clean copy only after a test generation actually renders an unwanted divider, number, caption, or multi-panel layout.

When a multi-shot request has no storyboard, use the Seedream template in [prompt templates](references/prompt-templates.md) to create one board. **Display that board in the host UI, inspect it yourself, then continue to Seedance R2V when it passes review.** Showing the board is a progress update, not a user-approval gate.

For a supplied storyboard, display it unless it is already visible in the conversation. Check planned order, readable key beats, recurring-subject consistency, and content-specific constraints such as anatomy, product form, or critical text. Refine a visibly failed board before video generation. Ask the user only when a creative choice cannot be inferred.

If the route deliberately changes to I2V shot pairs, crop panels only then. Inspect the layout first: automatic crops can verify position, not whether the image model drew the intended panel layout.

3. Design continuity and cuts

First-and-last frames control **one shot**; they do not mean every shot must inherit the prior clip's tail.

| Transition | Use prior tail as next start? | Design rule | |---|---:|---| | One uninterrupted action | Yes | Generate in sequence and inspect the seam | | Hard cut to a new angle, place, product, or time | No | Design each shot independently | | Match cut | Usually no | Match movement direction, shape, colour, or composition | | Occlusion or whip transition | No | End with the occluding action; start the next shot inside or after it | | Insert or cutaway | No | Us