Seedance Prompt Debugger
Diagnoses 12 common Seedance 2.0 video generation failures and rewrites the prompt to fix them.
What it does
Give it a broken Seedance 2.0 prompt plus your symptom description (or a frame from the bad video), and it classifies the issue into one of 12 known failure modes, then returns root cause → fixed prompt → a before/after diff table explaining each change.
- Covers character ID drift, twin/clone duplication, unwanted subtitles, watermarks/logos, style drift (anime turning photoreal), jump cuts when extending clips, quality degradation, wrong VFX, too many reference characters, end-of-clip audio pops, Chinese mispronunciation, and voice-timbre mismatch
- If you only say "it looks wrong", it insists on three questions first: exact symptom, original prompt, and which reference assets you used
- For issues prompts cannot fully solve (extension quality loss, timbre), it states the model's known limits and suggests post-production fixes in CapCut/剪映
Who it's for
- Creators actively shipping short-form or ad videos with Seedance 2.0
- AI video producers who need character consistency from reference images/audio
- Teams burning time on trial-and-error prompt edits without finding the cause
Examples
- "Two characters arguing, but four identical people appear" → identifies the three-view reference sheet as the cause, adds explicit character↔reference bindings plus a no-clone constraint block
- "I asked for 2D anime and got a live-action person" → explains the reference image is the dominant style anchor and proposes a two-step flow: convert the reference to anime first, then generate with cel-shading constraints
- "A random shop sign caption appeared bottom-right and a watermark top-left" → adds standard no-subtitle/no-watermark/no-signage-text constraints and recommends landscape over vertical framing
· · · Install guide · · ·
Try it now, no install
Paste this into Claude to use the skill without installing anything.
Read the instructions in this file and follow them to help me: https://raw.githubusercontent.com/cclank/lanshu-awesome-ai-video-kit/HEAD/skills/seedance-debugger/SKILL.md What I want: (describe your task here)
If Claude can't open the link, open it yourself and paste the contents instead.
↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.
Install in the Claude app (no terminal)
- Download the ZIP with the button below.
- In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
- Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
Install in Claude Code
Let Claude do it — paste this into Claude Code
Install the skill I found on Claude Skill Mart. Copy the skills/seedance-debugger folder from the GitHub repo cclank/lanshu-awesome-ai-video-kit into my ~/.claude/skills/seedance-debugger/. When it's done, tell me in one line what this skill can do.
Install with a command instead
git clone https://github.com/cclank/lanshu-awesome-ai-video-kit.git && mkdir -p ~/.claude/skills && cp -r lanshu-awesome-ai-video-kit/skills/* ~/.claude/skills/⚠ This is a third-party skill. Check the source repository before installing.
- Open a terminal.
- Clone the repo:
git clone https://github.com/cclank/lanshu-awesome-ai-video-kit.git - Create the skills folder:
mkdir -p ~/.claude/skills - Copy the skills in:
cp -r lanshu-awesome-ai-video-kit/skills/* ~/.claude/skills/ - This skill links to docs under
methodology/and sibling skills (e.g. seedance-prompter), so it is safest to keep the whole repo together, e.g.cp -r lanshu-awesome-ai-video-kit ~/.claude/skills/lanshu-video-kit - Restart Claude Code and try: "My Seedance prompt produced a bad video, help me debug it."