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Extract subtitles and transcripts from Bilibili and YouTube videos.
Passed 20 of 22 test cases with the skill, and 18 of 22 without it.
2 fixed18 passed either way2 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 2 test cases the skill fixed. Same model, same prompt, with and without the skill.
I want to check if the speaker discusses database optimization in this video: https://www.bilibili.com/video/BV1234567890 . Search through the video content and return a brief answer along with the exact transcript quotes and their timestamp markers.
| Checked | Without skill | With skill |
|---|---|---|
| Includes --write-sub flag when using yt-dlp to extract Bilibili subtitle tracks | Missed | Passed |
| Includes --skip-download flag to prevent fetching full video files during transcript search | Missed | Passed |
The instructions your model reads when the skill loads.
从 Bilibili（B站）和 YouTube 视频中提取字幕/转录文本，支持多语言、会员视频和内容问答。
yt-dlp is a feature-rich command-line audio/video downloader that also extracts subtitles.
Via pip (recommended):
pip install yt-dlp
Via package manager:
# macOS
brew install yt-dlp
# Ubuntu/Debian
sudo apt install yt-dlp
# Windows (scoop)
scoop install yt-dlp
Verify installation:
yt-dlp --version
test cases passed, vs 18 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.