# Guizang Product Video — workflow skill for launch videos

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Software promos and release-notes videos built from your real product components, with original music and SFX.

- **Type:** [Workflow](https://skills.varg.ai/workflows.md) · [Launch videos](https://skills.varg.ai/browse/skills/launch.md)
- **Slug:** `guizang-product-video`
- **Status:** live
- **Publisher:** Guizang (community)
- **License:** AGPL-3.0
- **Source:** https://github.com/op7418/guizang-product-video-skill
- **Works in:** Claude Code, Codex
- **Requires:** Python 3 and Node.js, A browser engine (HyperFrames optional)
- **Cost:** Free — local render
- **Runtime:** ~8.6 min for a 15 s promo (Agent Skills Hub test)
- **Adoption:** 416 installs, 871 GitHub stars (GitHub + skills.sh, 2026-10-26)

## What it does

From Guizang (歸藏, op7418), a widely followed Chinese AI designer: code-driven promo and version-update films for software (product promos, release-notes and changelog videos). It audits the repo for real features and design language, mounts real product components in the browser at video scale, writes a DIRECTION.md with three candidate directions and a second-by-second shot list, animates with GSAP and Three.js, and finishes with music (yours, a local model or code-synthesized) and motion sound effects mixed and checked by bundled scripts. Each film's visual approach must be derived from the product, not a template; HyperFrames is optional. In the Agent Skills Hub end-to-end test it made a 15-second promo with a look of its own in 8.6 minutes.

## Use when

- Make a release-notes or changelog video for an app
- Turn a product's real UI into a promo film

## Not for

- Live-action or AI-generated footage

## Install

- Claude Code: `npx skills add https://github.com/op7418/guizang-product-video-skill --skill guizang-product-video-skill`
- Codex: `npx skills add https://github.com/op7418/guizang-product-video-skill --skill guizang-product-video-skill`

## Example output

https://skills.varg.ai/previews/guizang-product-video.mp4 — Promo the creator made with Opus 5.5 + guizang-product-video-skill for his video podcast Next Token, built from its website: kinetic headline, animated bar chart and brand reveal. First 8 s of 60 s. (credit: 歸藏 Guizang (@op7418), https://x.com/op7418/status/2103488476591399234)

## Used for

- [SaaS launch or product promo](https://skills.varg.ai/use-cases/launch-video.md): A polished launch film for an app or website: UI cards, device mockups, kinetic type, music.
- [Changelog or release video](https://skills.varg.ai/use-cases/changelog-video.md): Release notes, a PR or a GitHub repo turned into a short video for X or LinkedIn.
- [App Store preview or app demo video](https://skills.varg.ai/use-cases/app-demo-video.md): A polished demo of your app: device mockups, real screens, captions, music — for the App Store, ads or a landing page.

## More launch videos skills

- [Orbit Card](https://skills.varg.ai/skills/hyperframes-orbit-card.md): A single feature card orbits a dot sphere on a Blender-made camera move: a 10-second product beat.
- [Onetake](https://skills.varg.ai/skills/onetake.md): Launch films that never cut to the next slide: one continuous camera, measured moves, motion blur, a slideshow oracle.

## Run the generation on varg

varg is one API key for the models these skills drive — Seedance 2.5, Kling 4, Veo 3.1, Wan 3, Nano Banana 2.1, GPT Image 2.5, ElevenLabs v4 and 200+ more — billed in credits, with a cost estimate before anything runs.

- Claude Code: `claude plugin marketplace add vargHQ/skills && claude plugin install varg@varg` (skill + hosted MCP)
- Codex, Cursor, Gemini CLI, OpenClaw: `npx skills add vargHQ/skills --skill varg-ai -a <agent> -y`
- Claude.ai, ChatGPT, any MCP client: connect `https://mcp.varg.ai/mcp`
- API key: https://varg.ai/dashboard/api · Model specs: https://varg.ai/models/llms.txt