YouTube Downloader

---

name: youtube-downloader description: Download YouTube videos and HLS streams (m3u8) from platforms like Mux, Vimeo, etc. using yt-dlp and ffmpeg. Use this skill when users request downloading videos, extracting audio, handling protected streams with authentication headers, or troubleshooting download issues like nsig extraction failures, 403 errors, or cookie extraction problems.

YouTube Downloader

Overview

Enable reliable video and audio downloads from YouTube and HLS streaming platforms (Mux, Vimeo, etc.) using yt-dlp and ffmpeg. This skill provides workflows for:

• YouTube downloads (up to 4K) using PO token providers or browser cookies
• HLS stream downloads with authentication headers
• Handling protected content and troubleshooting common download failures

When to Use This Skill

This skill should be invoked when users:

• Request downloading YouTube videos or playlists
• Want to extract audio from YouTube videos
• Experience yt-dlp download failures or limite

Code Examples

README.md

# Skill Demonstrations

This directory contains automated demonstrations of each skill using [VHS (Video Home System)](https://github.com/charmbracelet/vhs) by Charmbracelet.

VHS allows you to write terminal recordings as code, making demos reproducible, version-controllable, and typo-free.

## 📁 Demo Structure

demos/ ├── skill-creator/ │ ├── init-skill.tape # Initialize a new skill │ ├── validate-skill.tape # Validate skill quality │ └── package-skill.tape # Package for distribution ├── github-ops/ │ └── create-pr.tape # Create pull requests ├── markdown-tools/ │ └── convert-docs.tape # Convert documents └── generate_all_demos.sh # Generate all GIFs

## 🎬 Generating Demos

### Prerequisites

Install VHS:

**macOS:**
```bash
brew install vhs

Linux (with Go):

go install github.com/charmbracelet/vhs@latest

Or download from: https://github.com/charmbracelet/vhs/releases

Generate All Demos

### generate_all_demos.sh

#!/bin/bash set -e

echo "================================================" echo "Generating Claude Code Skills Demo GIFs" echo "================================================" echo ""

Colors for output

GREEN='\033[0;32m' YELLOW='\033[1;33m' RED='\033[0;31m' NC='\033[0m' # No Color

Check if VHS is installed

if ! command -v vhs &> /dev/null; then echo -e "${RED}Error: VHS is not installed!${NC}" echo "" echo "Install VHS to generate demo GIFs:" echo "" echo "macOS:" echo " brew install vhs" echo "" echo "Linux (with Go):" echo " go install github.com/charmbracelet/vhs@latest" echo "" echo "Or download from: https://github.com/charmbracelet/vhs/releases" echo "" exit 1 fi

echo -e "${GREEN}✓ VHS found${NC}" echo ""

Find all .tape files

TAPE_FILES=$(find demos -name "*.tape" -type f | sort) TOTAL=$(echo "$TAPE_FILES" | wc -l | tr -d ' ') CURRENT=0

echo "Found $TOTAL demo tape files" echo ""

Generate each demo

for tape_fi

### index.html