Demo Video Creation Skill

Turn a company URL into a polished SaaS/product demo video workflow for Codex and other AI coding agents.

This repository packages a reusable skill that helps an agent research a product website, capture high-resolution UI evidence, write a product-manager-quality storyboard, build the video with Remotion and FFmpeg, and verify the final render before delivery.

What It Does

• Starts from a single company URL when that is all the user has.
• Improves with richer inputs such as product flow, screenshots, brand assets, reference videos, CTA, audience, or platform.
• Guides browser research and screenshot capture for real product surfaces.
• Produces a 60-90 second demo video plan and production workflow.
• Supports 1080p by default and 4K when requested or appropriate.
• Includes reusable scripts for brief creation, video QC, and contact sheets.
• Includes a generic Remotion starter template for product-demo composition.

Install

Copy the skill folder into your Codex skills directory.

Windows PowerShell:

Copy-Item -Recurse .\demo-video-creation-skill "$env:USERPROFILE\.codex\skills\demo-video-creation-skill"

macOS or Linux:

cp -R ./demo-video-creation-skill ~/.codex/skills/demo-video-creation-skill

If your agent uses a different skills directory, copy the demo-video-creation-skill/ folder there.

Example Prompts

URL-only:

Use $demo-video-creation-skill to create a 60-90 second 4K demo video for https://example.com.

With product flow:

Use $demo-video-creation-skill. Make a 75 second launch demo for https://example.com. The target user is a RevOps manager. Show: import CRM data, clean duplicates, generate pipeline forecast, export report. Use a calm enterprise style.

With assets and reference:

Use $demo-video-creation-skill to make a vertical product demo for this app. Use the screenshots in ./assets, follow the pacing of the reference video, and keep the CTA focused on free trial signup.

Included Structure

demo-video-creation-skill/
  SKILL.md
  agents/openai.yaml
  references/
    capture-workflow.md
    storytelling.md
    visual-system.md
    remotion-ffmpeg.md
    qc-checklist.md
  scripts/
    create_demo_brief.py
    qc_video.py
    make_contact_sheet.py
  assets/remotion-starter/

Requirements

The skill can guide planning without local dependencies, but production-quality rendering typically uses:

• Node.js and npm
• Remotion
• FFmpeg and ffprobe
• Browser automation or an in-app browser for live capture

Quality Bar

The skill is designed to prevent common demo-video failures:

• Generic marketing copy with no real product loop
• Blurry screenshots
• Slide-like scene jumps
• Misaligned cursors and callouts
• Unsupported claims
• Unlicensed music
• Final files that were never inspected with ffprobe or contact sheets

Promotional Copy

English