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Download Bilibili video audio as MP3 with cover art and metadata (supports multiple URLs)
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
Based on SOC occupation classification
| name | bilibili-mp3 |
| description | Download Bilibili video audio as MP3 with cover art and metadata (supports multiple URLs) |
| allowed-tools | ["Bash(yt-dlp *)","Bash(mid3v2 *)","Bash(mkdir *)","Bash(cp *)","Bash(ls *)"] |
| argument-hint | <url1> [url2] ... |
| disable-model-invocation | true |
| arguments | ["urls"] |
Download Bilibili video audio as MP3 files with embedded cover art, title, and artist metadata. Supports one or more URLs in a single invocation. Saves to ~/音乐/.
$urls: One or more Bilibili video URLs, space-separated (e.g. https://www.bilibili.com/video/BV11x411g7DG or b23.tv short links)For each URL, produce an MP3 file at ~/音乐/{artist}-{title}.mp3 with:
TIT2TPE1TALB (same as title)For each URL in $urls, execute steps 1–6. Then run step 7 once at the end.
Use yt-dlp -j "$url" to get full video info as JSON. Extract:
titleuploader (Bilibili account name)thumbnail / pic (cover URL)description (may contain artist credits)Read the description to reason about who the artist is. Common patterns in Bilibili music videos:
■Music：name or Music: name■Vocal：name or vocals listed in description作曲 / 作詞 / 編曲 / 歌 fieldsPresent the extracted title and artist to the user for confirmation using AskUserQuestion. Offer the detected artist as the first option, the uploader as a second option, and allow freeform input.
If no artist can be reasonably inferred from the description, ask the user directly.
cd /tmp && yt-dlp \
-x --audio-format mp3 --audio-quality 0 \
--embed-thumbnail \
--embed-metadata \
--convert-thumbnails jpg \
--write-thumbnail \
-o "bilibili_%(id)s.%(ext)s" \
"$url"
This produces /tmp/bilibili_{id}.mp3 and /tmp/bilibili_{id}.jpg.
Success criteria: Both files exist and the MP3 has non-zero size.
mid3v2 --artist "$artist" --album "$title" /tmp/bilibili_{id}.mp3
Before copying, check if the target file already exists:
mkdir -p ~/音乐
If ~/音乐/"$artist-$title.mp3" already exists, ask the user whether to overwrite or skip. Do not overwrite without explicit confirmation.
cp /tmp/bilibili_{id}.mp3 ~/音乐/"$artist-$title.mp3"
mid3v2 ~/音乐/"$artist-$title.mp3"
Confirm that TIT2 (title), TPE1 (artist), TALB (album), and APIC (cover) are all present and correct.
Success criteria: The file at ~/音乐/{artist}-{title}.mp3 has all four metadata fields set correctly.
Remove all temporary /tmp/bilibili_* files created during this run.
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