seedance-before-after

seedance-before-after is a skill for Claude Code, Codex from rediumvex/ai-video-generator-claude. It costs 79 tokens per session (4,330 once invoked), scanned A, original, MIT.

A prompt-writing tool for Seedance 2.0, a video-generation model available through Higgsfield, focused on showing a clear change from a starting state to a finished state.

In plain words
What is it for?
Use it for transformation reveals such as makeovers, renovations, fitness progress, product changes, design updates, or business growth visuals.
Why use it?
It turns a before-and-after idea into a detailed video prompt with the subject, change, timing, format, transition, and publishing platform specified.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for transformation reveals such as makeovers, renovations, fitness progress, product changes, design updates, or business growth visuals.

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Install with agentmods
npx agentmods add skills/rediumvex/ai-video-generator-claude/07-before-after
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 rediumvex/ai-video-generator-claude --skill 07-before-after
Clone the repo
git clone --depth 1 https://github.com/rediumvex/ai-video-generator-claude

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-before-after

README.md
[![agentmods](https://agentmods.dev/badge/skills/rediumvex/ai-video-generator-claude/07-before-after/github.svg)](https://agentmods.dev/skills/rediumvex/ai-video-generator-claude/07-before-after)
Your own site
<a href="https://agentmods.dev/skills/rediumvex/ai-video-generator-claude/07-before-after"><img src="https://agentmods.dev/badge/skills/rediumvex/ai-video-generator-claude/07-before-after/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for seedance-before-after

Your own site · 80×15
<a href="https://agentmods.dev/skills/rediumvex/ai-video-generator-claude/07-before-after"><img src="https://agentmods.dev/badge/skills/rediumvex/ai-video-generator-claude/07-before-after.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 79 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,330 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original 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 $0.00079 $0.04330
Opus 5 $0.00039 $0.02165
Sonnet 5 $0.00016 $0.00866
Haiku 4.5 $0.00008 $0.00433

Measured 12d ago against content hash 7151cde6a85b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

seedance-before-after 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 12d 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.

skills/07-before-after/SKILL.md · 292 lines

How it starts

The opening of the file, as written. The whole thing — 292 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Before-After — Transformation Reveal Video Prompts

Transformation content is the highest-engagement format on social media. This skill generates precise Seedance 2.0 prompts that capture the full emotional arc of change: tension, reveal, payoff.


Input Specs

Before generating prompts, establish:

  • Subject: What is transforming? (person, room, product, brand, body, space, logo, website)
  • From state: Describe the before — tone, condition, mood, colors, energy
  • To state: Describe the after — tone, condition, mood, colors, energy
  • Duration: 4s, 6s, or 8s clip
  • Aspect ratio: 9:16 (Reels/TikTok), 1:1 (feed), 16:9 (YouTube)
  • Transition style: hard cut, wipe, morph dissolve, object match, time-lapse compress
  • Platform destination: Instagram Reels, TikTok, YouTube Shorts, LinkedIn

Material References

  • Use @material[image1] for the "before" state photo
  • Use @material[image2] for the "after" state photo
  • Use @material[video1] for existing transformation footage
  • Use @material[audio1] for background music or sound effects

Platform Optimization

  • TikTok (9:16): Hook by 1.5s. Transition at 2-3s mark. Text overlays in center 80%. Bottom 20% obscured by UI.
  • Instagram Reels (9:16): Hook by 2s. Higher polish expected. Cover frame must work as grid image — pick the "after" hero moment.
  • YouTube Shorts (9:16): Hook by 2-3s. Can run longer (up to 60s). Description provides context.
  • LinkedIn (16:9 or 1:1): Professional tone. Slower transitions acceptable. Text overlays should include metric/result.

2-Second Hook Structures

1. The Flash Compare

Show both states in rapid alternation — before/after/before — within the first 1.5 seconds. The brain registers contrast before the viewer consciously decides to watch.

Prompt element: "rapid flash cut between [before state] and [after state], alternating twice in the first 1.5 seconds, creating a visual stutter effect that forces viewer attention"

Read the full file on GitHub · 292 lines

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. 12d ago First seen · 292 lines · 79 tokens per session scan A 7151cde6a85b

Subscribe to this mod's changes

seedance-before-after is a skill published in the GitHub repository rediumvex/ai-video-generator-claude (361 stars, last pushed 1mo ago), licensed MIT. It adds 79 tokens to every session and 4,330 once invoked, about $0.0004 per session on Opus 5. 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 2026-08-30.

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