youtube-downloader

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.

1.59x

Quality

88%

Does it follow best practices?

Impact

78%

1.59x

Average score across 3 eval scenarios

Securityby

Risky

Do not use without reviewing

Evaluation results

98%

43%

YouTube Downloader Setup Assistant

PO Token provider setup

Criteria

Without context

With context

yt-dlp Python discovery

25%

100%

Correct plugin installed

100%

Plugin into yt-dlp Python

50%

100%

mweb client for PO tokens

100%

web_safari client with cookies

100%

Docker NOT installed if missing

100%

WPC fallback without Docker

100%

URL quoting in examples

100%

Localhost proxy rewrite

100%

No Android client with PO tokens

100%

80%

87%

11%

Video Archive: CDN Stream Downloader

Authenticated HLS stream download

Criteria

Without context

With context

ffmpeg used (not yt-dlp)

100%

-headers flag present

100%

-protocol_whitelist correct

100%

Stream copy mode

100%

-bsf:a aac_adtstoasc present

83%

Referer header included

100%

62%

Separate stream merging

100%

MP4 output format

100%

Output file created

100%

Parameterized script

100%

51%

35%

YouTube Video Download Request

User-facing download workflow

Criteria

Without context

With context

Thumbnail in Markdown

100%

File path reported

File size reported

Resolution reported

Plain language response

20%

Metadata fetched first

100%

MP4 output format

Cookie permission noted

20%

60%

Single video (no playlist)

100%

Cookie detail hidden

37%

403 retry strategy documented

33%

100%

Video title and channel

50%

100%

Repository: daymade/claude-code-skills
Commit: 392d34c

Evaluated: 29 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

YouTube Downloader Setup Assistant Video Archive: CDN Stream Downloader YouTube Video Download Request

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