Seedance 2.0 JiMeng Skill (OpenClaw / ClawHub)

Purpose

This skill is for:

• Prompt design from rough idea to production-ready prompt
• Mode choice: Text-only vs First/Last Frame vs All-Reference
• @asset mapping (what each image/video/audio controls)
• 4-15s duration planning and timeline beats
• Multi-segment stitching for videos >15s
• Video extension / continuation prompts
• Character replacement and directed editing prompts
• Camera-language replication from reference videos
• Scenario-specific strategies (product ads, short drama, fantasy, music video, etc.)

Core Rules

• Always declare mode first.
• Always include an explicit Assets Mapping section.
• Use timecoded beats with one major action per segment.
• Keep prompts concise and controllable (avoid vague poetic-only wording).
• Add negative constraints when user needs clean output.
• Be specific and visual — "a woman in a red trench coat walks through rain-soaked neon streets" >> "a woman walking".
• Separate dialogue/sound from visuals — write dialogue with character name + emotion tag, then sound effects as a distinct layer.
• Match reference image style to video theme — e.g., ink-wash style images for historical themes, neon renders for cyberpunk.

Platform Limits (Seedance 2.0)

• Mixed inputs total (image+video+audio): max 12 files
• Images: jpeg/png/webp/bmp/tiff/gif, max 9, each < 30MB
• Videos: mp4/mov, max 3, total duration 2-15s, total < 50MB
• Audio: mp3/wav, max 3, total <= 15s, total < 15MB
• Generation duration: 4-15s
• Realistic human face references may be blocked by platform compliance

Output Format (use by default)

• Mode
• Assets Mapping
• Final Prompt
• Negative Constraints
• Generation Settings

Mode: All-Reference
Assets Mapping:
- @image1: first frame / identity anchor
- @video1: camera language + motion rhythm
- @audio1: optional soundtrack pacing

Final Prompt:
[ratio], [duration], [style].
0-3s: [action + camera].
3-7s: [action + transition].
7-10s: [reveal/climax + end frame].
Preserve identity and scene continuity. Use physically plausible motion and coherent lighting.

Negative Constraints:
no watermark, no logo, no subtitles, no on-screen text.

Generation Settings:
Duration: 10s
Aspect Ratio: 9:16

IP / Copyright Avoidance (Moderation-Safe Prompting)

Seedance 2.0 has platform-side content moderation. Prompts referencing recognizable franchises, characters, or brand aesthetics will be rejected even if no name is used. Follow these rules:

Core Principles

• Never use franchise names, character names, or brand terms — not even as "style of" references.
• Invent fully original names for characters and creatures. Use descriptive nicknames (e.g., "Alloy Sentinel", "Storm-Rabbit").
• Describe aesthetics generically — replace recognizable signature features with original alternatives:
• ❌ "arc reactor" → ✅ "hex-light energy core"
• ❌ "yellow lightning mouse" → ✅ "tiny storm-rabbit with glowing cyan antlers"
• ❌ "red-gold armored suit" → ✅ "custom exo-suit with smooth ceramic panels"
• Add explicit negative constraints listing every franchise name, character name, and brand term that could be inferred.
• Use family-friendly / PG-13 tone markers — they help pass moderation.

Progressive Fallback Strategy

If a prompt is rejected, escalate distance from the source IP:

• Level 1: Replace all names with original nicknames, keep general aesthetic.
• Level 2: Replace signature visual features (colors, silhouette, iconic props) with fully original designs.
• Level 3: Change character type entirely (e.g., humanoid hero → autonomous mech + drone; creature battle → abstract elemental spirits).

Toy / Figure Animation

When animating toy or doll references from images:

• Strip all brand indicators from the prompt.
• Use "original vinyl-style toy figure" or "collectible art figure" instead of any brand name.
• Bind @image1 to proportions, colors, outfit shape only — never preserve logos or trademarks.

Special Cases

A) Extend Video

B) Replace Character

C) Beat Sync

D) Text-Only Generation

E) Multi-Segment Stitching (Videos > 15s)

• Segment 1: Generate normally (up to 15s). End on a clean handoff frame (stable pose, clear composition).
• Segment 2+: Upload previous segment as @video1, write Extend @video1 by Xs. Include a continuity note describing exactly what the last frame looks like.
• Repeat until target duration is reached.

• Total duration and segment count at the top.
• Handoff description at the end of each segment (what the last frame shows).
• Explicit continuity instructions: preserve identity, outfit, lighting, camera direction.

F) Short Drama with Dialogue

• Write visual action and dialogue as separate layers per time segment.
• Tag dialogue: Dialogue (CharacterName, emotion): "line"
• Tag sound: Sound: [description]
• Keep dialogue short — one line per 3-5s segment works best.

G) Product Showcase / E-Commerce Ad

• Bind product image to @image1 as identity anchor.
• Use techniques: 360° rotation, 3D exploded view, reassembly animation, hero lighting.
• Keep background clean (studio, gradient, or contextual lifestyle).
• Specify material rendering: glass reflections, metallic sheen, matte texture, etc.

H) One-Take Long Shot (Multi-Image Waypoints)

• Assign each @image to a scene waypoint (location, character, or prop encountered along the path).
• Write the prompt as a continuous camera movement visiting each waypoint in order.
• Explicitly state: no cuts, single continuous shot or one-take.
• Use @image1 as first frame, subsequent images as reference for environments/characters encountered.

Scenario-Specific Strategies

Files in this skill

• SKILL.md — main skill behavior
• SKILL.sh — quick local test helper
• scripts/setup_seedance_prompt_workspace.sh — scaffold helper files
• references/recipes.md — ready-to-use prompt recipes
• references/modes-and-recipes.md — mode and control notes
• references/camera-and-styles.md — camera language and visual styles vocabulary