seedance-20

seedance-20 is a skill for Claude Code, Codex from AvalonLee/AstraCraft-Program. It costs 0 tokens per session (1,125 once invoked), scanned A, original, no licence file.

A prompt-writing skill package for ByteDance’s Seedance 2.0 video-generation model. It turns a creative request into compact directions for camera work, lighting, acting, and sound.

In plain words
What is it for?
It helps create or edit videos from text, images, or other video, including sequences, continuations, first and last frames, and audio-aware scenes.
Why use it?
It helps avoid vague prompts that list adjectives without explaining what should happen on screen. It gives the video a clear purpose and coordinated visual and audio choices.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit It helps create or edit videos from text, images, or other video, including sequences, continuations, first and last frames, and audio-aware scenes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/avalonlee/astracraft-program/seedance-20
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add AvalonLee/AstraCraft-Program --skill seedance-20
Clone the repo
git clone --depth 1 https://github.com/AvalonLee/AstraCraft-Program

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for seedance-20

README.md
[![agentmods](https://agentmods.dev/badge/skills/avalonlee/astracraft-program/seedance-20.svg)](https://agentmods.dev/skills/avalonlee/astracraft-program/seedance-20)
Your own site
<a href="https://agentmods.dev/skills/avalonlee/astracraft-program/seedance-20"><img src="https://agentmods.dev/badge/skills/avalonlee/astracraft-program/seedance-20.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,125 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.01125
Opus 5 $0.00000 $0.00562
Sonnet 5 $0.00000 $0.00225
Haiku 4.5 $0.00000 $0.00112

Measured 8d ago against content hash 99b2f6b1b12a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

seedance-20 scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

entries/design-creative/seedance-20/SKILL.md · 61 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 61 lines · 0 tokens per session scan A 99b2f6b1b12a

Subscribe to this mod's changes

seedance-20 is a skill published in the GitHub repository AvalonLee/AstraCraft-Program (2 stars, last pushed 3d ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 1,125 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories

seedance-20

This skill should be used when creating, improving, or troubleshooting Seedance 2.0 video on any surface — Dreamina, Jimeng, CapCut, Doubao, Volcengine/Ark, BytePlus, Runway's Seedance route, fal, or third-party provider/router surfaces such as EvoLink, OpenRouter, Kie.ai, PiAPI, LaoZhang, Runware, ModelsLab, AI/ML…

LeoYeAI/seedance-skills · 178 tokens

video-prompt-engineer

A workflow for converting a finished script or script excerpt into Seedance-ready storyboards and video prompts. Seedance is an AI video-generation system, and each storyboard covers a 10–15-second clip.

Arch-Dog/video-prompt-engineer · 126 tokens

ai-film-production-system

Project-level production control for AI short films and case-informed AI drama pipelines using the v2 generic film protocol. Use when working with a movie root, project state, constraints, task queues, character/scene/prop bibles, shot plans, prompt specs, assets, manifests, provider batches, Dreamina/Seedance-style…

Phantomlau3674/ai-film-director-workbench · 117 tokens

ai-video-prompt-generator

Generate AI video prompts from clean structured prompt specs, validate prompt specs, run an isolated OpenAI-based prompt generator, and lint prompt outputs for viewpoint, action, reference, dialogue, negative prompt, audio prompt, safety tags, and legacy-contamination failures. Use when producing or repairing…

Phantomlau3674/ai-film-director-workbench · 83 tokens

seedance-shotlist-director

Generate a director's shotlist as an editable HTML production board for Seedance 2.0. Use whenever the user provides a script, scene breakdown, story idea, or treatment to turn into a numbered shotlist with English Seedance prompts — trigger on "make a shotlist", "director’s shotlist", "break this script into…

afloy011-spec/seedance-shotlist-director-en · 235 tokens

seedance-2-5-director

A guide for turning ideas, scripts or source materials into prompts for Seedance 2.5, a video-generation model from platforms such as Jimeng, Doubao, Volcano Engine and BytePlus ModelArk.

HaoXuanAce/seedance-2.5-director · 228 tokens