Youtube videos

YouTube Videos Downloader

Download every public video from a YouTube channel (or a playlist / single video / Short) into a user-specified folder, named by upload datetime.

YouTube is yt-dlp's strongest platform — this is the simplest of the three downloader skills. No browser mirror (unlike instagram-videos) and no third-party fallback engine (unlike tiktok-videos). It is single-engine: yt-dlp does both listing and download.

Inputs

Parameter	Required	Example
YouTube URL (channel, playlist, video, or short)	yes	https://www.youtube.com/@mkbhd
Output directory	yes	out/youtube
Max height	no	720 (default)
Timezone for filenames	no	America/Santiago (default)

Accepted URL shapes (the script normalizes them):

• Channel root: youtube.com/@handle, /channel/UC..., /c/name, /user/name → expands to BOTH the /videos and /shorts tabs
• A specific tab/playlist: .../videos, .../shorts, ?list=... → used as-is
• Single video: youtube.com/watch?v=..., youtu.be/...
• Short: youtube.com/shorts/...

Prerequisites

yt-dlp AND ffmpeg must be installed (both present on this machine). ffmpeg is required because YouTube serves separate video and audio (DASH) streams that must be merged. Keep yt-dlp fresh — an outdated yt-dlp is the #1 cause of YouTube failures:

yt-dlp --version || python3 -m pip install -U yt-dlp
ffmpeg -version | head -1

Workflow checklist

- [ ] Step 1: Verify the channel/video is public
- [ ] Step 2: (optional) Pre-fetch listing to review before downloading
- [ ] Step 3: Run download script
- [ ] Step 4: Report results

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Step 1: Verify it's public

Open the URL. If it's private, members-only, age-restricted, or unavailable in the region, stop — this skill is for public content. (For age/bot-gated public videos you own access to, see --cookies-from-browser below.)

Step 2 (optional): Pre-fetch the listing

The script lists internally, but you can inspect first:

yt-dlp --flat-playlist -J "https://www.youtube.com/@handle/videos" > listing.json

listing.json has an entries array of {id, url, title} (no dates — those are resolved during download). Pass it back with --listing-json to download exactly that set.

Step 3: Download and rename

python3 .cursor/skills/youtube-videos/scripts/download_channel_videos.py \
  --url "https://www.youtube.com/@handle" \
  --output-dir out/youtube \
  --max-height 720 \
  --timezone America/Santiago

The script:

1. Normalizes the URL (a bare channel → /videos + /shorts), lists entries via yt-dlp --flat-playlist, merges and dedupes by video id
2. Downloads each video at ≤720p, preferring H.264/AAC, merged to mp4 (clean for the downstream avatar pipeline)
3. Reads the exact upload timestamp (or upload_date) from each video's info.json
4. Renames to YYYY-MM-DD_HH-MM-SS.mp4 in the chosen timezone (date-only videos → ..._00-00-00)
5. Maintains download-archive.txt in the output dir so re-runs resume instead of re-downloading
6. Writes {output_dir}/videos_manifest.json (id, url, title, timestamp, uploadDate, height, file)

Useful flags: --max N (cap count — important for large channels), --max-height 1080, --cookies-from-browser chrome, --no-archive, --delay-ms.

Collisions: two videos at the same second get _2, _3 suffixes.

Step 4: Report to user

Summarize: channel/URL, output path, count downloaded / skipped / failed, and list filenames sorted newest-first.

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Why no fallback engine

Platform	Listing	Download	Why
Instagram	browser scrape (Picnob)	Picnob/ImgInn	direct tools 401
TikTok	yt-dlp flat-playlist	yt-dlp + tikwm fallback	yt-dlp signing breaks intermittently
YouTube	yt-dlp	yt-dlp	yt-dlp is the gold standard; no reliable second source needed

Resilience for YouTube is: (a) keep yt-dlp updated, and (b) --cookies-from-browser for the occasional "Sign in to confirm you're not a bot" / age-gate.

Anti-patterns

1. Do not default to 4K/best — files get huge. Default cap is 720p; raise with --max-height only when needed.
2. Do not run with a stale yt-dlp. Update it before blaming the site.
3. Do not download an entire large channel blindly — use --max N or rely on the resume archive.
4. Do not download private / members-only / age-restricted content you don't have access to.
5. Do not forget ffmpeg — without it, merged mp4 output fails.
6. Do not commit large out/ video folders — add the output dir to .gitignore.

Utility scripts

Script	Purpose
scripts/download_channel_videos.py	List + download (yt-dlp, 720p mp4) + datetime rename + archive resume + manifest (main entry point)

Additional resources

• Real run example: examples.md
• For TikTok (yt-dlp + tikwm fallback), use the tiktok-videos skill.
• For Instagram (needs a browser mirror), use the instagram-videos skill.