Create product demo videos by automating browser interactions and capturing frames. Use when the user wants to record a demo, walkthrough, product showcase, or interactive video of a web application. Supports Playwright CDP screencast for high-quality capture and FFmpeg for video encoding.

GitHub
安装命令
npx skhub add sundial-org/demo-video
Markdown
SKILL.md

Demo Video Creator

Create polished product demo videos by automating browser interactions.

Overview

  1. Plan the demo sequence (pages, interactions, timing)
  2. Record frames using Playwright CDP screencast
  3. Encode to video with FFmpeg

Quick Start

Prerequisites

  • Clawdbot browser running (browser action=start profile=clawd)
  • App accessible via browser (localhost or remote)
  • FFmpeg installed for encoding

Recording Workflow

  1. Start the Clawdbot browser if not running
  2. Navigate to the app manually or via browser action=open
  3. Customize scripts/record-demo.js for the target app
  4. Run: node scripts/record-demo.js
  5. Encode: bash scripts/frames-to-video.sh

Planning a Demo

See references/demo-planning.md for guidance on:

  • Structuring demo sequences
  • Timing and pacing
  • Interaction patterns
  • What makes demos compelling

Scripts

scripts/record-demo.js

Template Playwright script that:

  • Connects to Clawdbot browser via CDP
  • Starts screencast capture (JPEG frames)
  • Executes demo sequence (navigation, clicks, hovers, typing)
  • Saves frames to output directory

Customize for each demo:

  • DEMO_SEQUENCES array - define pages and interactions
  • OUTPUT_DIR - where to save frames
  • FRAME_SKIP - skip every Nth frame (lower = more frames)

scripts/frames-to-video.sh

FFmpeg encoding script with presets:

  • mp4 - H.264, good quality/size balance (default)
  • gif - Animated GIF for embedding
  • webm - VP9, smaller files

Usage: ./frames-to-video.sh [input_dir] [output_name] [format]

Interaction Patterns

// Navigation
await page.goto('http://localhost/dashboard');
await page.waitForTimeout(2000);

// Click element
await page.locator('button:has-text("Create")').click();
await page.waitForTimeout(500);

// Hover (show tooltips, hover states)
await page.locator('.card').first().hover();
await page.waitForTimeout(1000);

// Type text
await page.locator('input[placeholder="Search"]').fill('query');
await page.waitForTimeout(500);

// Press key
await page.keyboard.press('Enter');
await page.keyboard.press('Escape');

// Scroll
await page.evaluate(() => window.scrollBy(0, 300));

Tips

  • Timing: 2s on page load, 0.5-1s between interactions, 1.5s to show results
  • Frame skip: Use 3-5 for smooth video, 8-10 for smaller files
  • Quality: 85-90 JPEG quality balances size and clarity
  • Resolution: Browser window size determines output resolution
  • Loops: GIFs should loop seamlessly - end where you started
发现
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版本
最新版本元数据

版本

v2026.09.24

发布时间

2026年9月24日

分类

未分类

许可证

未指定

源路径

skills/demo-video

默认分支

main

最新提交

b80cde2

Tree SHA

fc3a971